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Patent 2184362 Summary

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(12) Patent Application: (11) CA 2184362
(54) English Title: DETERGENT COMPOSITION
(54) French Title: COMPOSITIONS DETERGENTES
Status: Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication
Bibliographic Data
(51) International Patent Classification (IPC):
  • C11D 3/12 (2006.01)
  • C11D 3/00 (2006.01)
  • C11D 3/16 (2006.01)
  • C11D 3/37 (2006.01)
  • C11D 3/42 (2006.01)
(72) Inventors :
  • MOSS, MICHAEL ALAN JOHN (United Kingdom)
  • THOEN, CHRISTIAAN ARTHUR JACQUES KAMIEL (United Kingdom)
(73) Owners :
  • THE PROCTER & GAMBLE COMPANY
(71) Applicants :
  • THE PROCTER & GAMBLE COMPANY (United States of America)
(74) Agent: KIRBY EADES GALE BAKER
(74) Associate agent:
(45) Issued:
(86) PCT Filing Date: 1995-03-01
(87) Open to Public Inspection: 1995-10-12
Examination requested: 1996-08-28
Availability of licence: N/A
Dedicated to the Public: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): Yes
(86) PCT Filing Number: PCT/US1995/002699
(87) International Publication Number: WO 1995027028
(85) National Entry: 1996-08-28

(30) Application Priority Data:
Application No. Country/Territory Date
9406543.0 (United Kingdom) 1994-03-31

Abstracts

English Abstract


Detergent compositions are disclosed comprising a surfactant, a detergency builder comprising zeolite P having a silicon to aluminium
ratio not greater than 1.33 (zeolite MAP); and one or more additional components selected from anionic optical brighteners which are stilbene
derivatives; specific polymer dye transfer inhibition agents; and an oxidative catalyst. The compositions may be of any suitable physical
form, preferably granular or liquid. Methods of making the compositions are disclosed.


French Abstract

Des compositions détergentes comprennent un tensioactif, un adjuvant au pouvoir détergent comprenant la zéolite P ayant un rapport silicium/aluminium inférieur à 1,33 (zéolite MAP); et également un ou plusieurs composants supplémentaires sélectionnés parmi des agents d'azurage optiques, anioniques, qui sont des dérivés du stilbène; des agents d'inhibition de transfert de colorants à base de polymères spécifiques; et un catalyseur d'oxydation. Ces compositions peuvent se présenter sous n'importe quelle forme appropriée, de préférence granulaire ou liquide. Des procédés de fabrication de ces compositions sont également décrits.

Claims

Note: Claims are shown in the official language in which they were submitted.


24
CLAIMS
1. A detergent composition comprising:
a) a surfactant selected from anionic,
nonionic, cationic, amphoteric and
zwitterionic detergent-active compounds and
mixtures thereof;
b) a detergency builder comprising zeolite P
having a silicon to aluminium ratio not
greater than 1.33 (zeolite MAP); and
c) one or more additional components selected
from
(i) anionic optical brighteners which
are N-bonded stilbene derivatives:
(ii) polymers selected from polyamine
N-oxide polymers, copolymers of N-
vinylpyrrolidone and N-vinylimidazole,
polyvinylpyrrolidone polymers,
p o l y v i n y l o x a z o l i d o n e s ,
polyvinylimidazoles or mixtures
thereof; and
( i i i ) m a n g a n e s e
phthalocyanintetrasulphonate.
2. A detergent composition according to claim

1, wherein the zeolite MAP has a silicon to aluminium
ratio not greater than 1.07.
3. A detergent composition according to claim 1
or 2, wherein the zeolite MAP has a particle size d50
of 1 to 5 micrometres.
4. A detergent composition according to any one
of claims 1 to 3, which comprises 5 to 60 wt% of the
zeolite MAP.
5. A detergent composition according to claim 4
which comprises from 10 to 40 wt% of the zeolite MAP.
6. A detergent composition according to any one
of claims 1 to 5, wherein the optical brightener (c)(i)
is selected from compounds of the formula:
<IMG>
wherein R represents diethanolamino and R2 represents
-SO3Na: or R represents morpholino and R2 represents
-SO3Na; or R represents anilino and R2 represents H or
-SO3Na; or R represents 1-methyl-2-hydroxethylamino
and R2 represents -SO3Na.

26
7. A detergent composition according to any one
of claims 1 to 6 which comprises one or more optical
brighteners in an amount of from 0.001 to 10.0 wt% of
the composition.
8. A detergent composition according to claim
7, which comprises one or more optical brighteners in
an amount of from 0.05 to 0.3 wt% of the composition.
9. A detergent composition according to any one
of claims 1 to 8, wherein the polymer (c)(ii) is
selected from polyvinylpyrrolidone; polyvinylpyridine
N-oxide; and polyvinylpyrrolidone-polyvinylimidazole
copolymer.
10. A detergent composition according to claim
9, wherein the polymer (c)(ii) comprises
polyvinylpyrrolidone in an amount of from 0.05 to 0.3
wt% based on the composition.
11. A detergent composition according to claim 9
wherein the polymer (c)(ii) comprises polyvinylpyridine
N-oxide or polyvinylpyrrolidone-polyvinylimidazole
copolymer in an amount of from 0.01 to 1.5 wt% based on
the composition.

27
12. A detergent composition according to any one
of claims 1 to 11, in which component (c) comprises the
manganese phthalocyanintetrasulphonate in an amount of
from 0.01 to 1.0 wt% based on the composition.

Description

Note: Descriptions are shown in the official language in which they were submitted.


W095/27028 ~ 2 1 8 4 3 6 2 PCT~S95/02699
TITLE: DETERGENT COMPOSITION
The present invention relates to a detergent
composition and, in particular, to improvements in the
detergency performance of laundry detergent
compositions comprising zeolites as a sequestering
agent for water hardness.
Detergent compositions for heavy-duty fabric
washing conventionally contain detergency builders
which lower the conc~ntration of calcium and magnesium
water hardness ions in the wash liquor and thereby
provide good detergency effect in both hard and soft
water.
Conventionally, inorganic phosphates, such
as sodium tripolyphosphate, have been used as builders
for laundry detergents. More recently, alkali metal
aluminosilicate ion-exchangers, particularly
crystalline sodium aluminosilicate zeolite A, have been
proposed as replacements for the inorganic phosphates.
For example, EP 21 491A (Procter & Gamble)
discloses detergent compositions containing a building
system which includes zeolite A, X or P (B) or a

W O 95/27028 . .~ 9 4 3 6 2 PCTrUS95/02699
mixture thereof. EP 384070A (Unilever) discloses
specific zeolite P materials having an especially low
silicon to aluminium ratio not greater than 1.33
(hereinafter referred to as zeolite MAP) and describes
its use as a- detergency builder. To date, however,
zeolite A is the preferred aluminosilicate detergency
builder in co~m~rcially available products.
EP 384070 (Unilever) suggests that zeolite
MAP has certain advantages over zeolite A as a
detergency builder. ~owever, we have found that
compositions cont~ining zeolite MAP as detergency
builder can result in poorer fabric whiteness, as
cQ~red with compositions cont~ining zeolite A as
detergency builder, in w~s~ing loads containing a
mixture of coloured and white fabrics.
Surprisingly, we have found that zeolite MAP
gives good fabric whiteness performance when used in
combination with specific fabric whitening agents
and/or specific polymeric materials and/or with an
oxidative catalyst.
Thus, the present invention provides a
detergent composition comprising:
a) a surfactant selected from anionic,
nonionic, cationic, amphoteric and
zwitterionic detergent-active compounds and
mixtures thereof:
b) a detergency builder comprising zeolite P

wo gs/27028 ~ 2 1 8 ~ 3 6 2 PCT/US95/02699
having a silicon to aluminium ratio not
greater than 1.33 (zeolite MAP); and
c) one or more additional components selected
f rom
( i ) anionic optical brighteners which
are stilbene derivatives;
(ii) polymers selected from polyamine
N-oxide polymers, copolymers of N-
vinylpyrrolidone and N-vinylimidazole,
polyvinylpyrrolidone polymers,
p o 1 yv i ny 1 o x a z o 1 idones,
polyvinylimidazoles or mixtures
thereof; and
( i i i ) m a n g a n e s e
phthalocyanintetrasulphonate.
The detergent composition according to the
invention may be of any physical type, for example
powders, liguids and gels. However, granular and
liquid compositions are preferred.
Preferably the detergent composition
according to the present invention contains no bleach.
The detergent composition according to the
invention contains, as an essential ingredient, one or
more surfactants selected from anionic, nonionic,
cationic, amphoteric and zwitterionic detergent-active
compounds and mixtures thereof. Such surfactants are
well known and described in the literature, for

WO 95/27028 : 2 1 8 4 3 6 2 PCT/US95/02699
example, in "Surface-Active Agents and Detergents",
Volumes I and II by Schwartz, Perry and Berch.
Examples of suitable anionic surfactants
include alkylbenzene sulphonates, particularly sodium
linear alkylbenzene sulphonates having an alkyl chain
length of C8-C15; C12-C15 primary alkyl sulphates;
olefin sulphonates; alkyl xylene sulphonates; dialkyl
sulphosuccinates; and fatty acid ester sulphonates.
Sodium salts are generally preferred.
Examples of suitable nonionic surfactants
include alkoxylated adducts of fatty alcohols
cont~;~ing an average of from 3 to 10 alkylene oxide
groups per molecule.
A particularly preferred aliphatic alcohol
ethoxylate is a primary alcohol having an average of
from 12 to 15 carbon atoms in the alkyl chain condensed
with an average of from five to seven ethoxy groups per
mole of alcohol.
Other examples of suitable alkoxylated
adducts of fatty alcohols are Synperonic A3 (ex ICI),
which is a C13-C15 alcohol with about three ethylene
oxide groups per molecule and Empilan KB3 (ex Marchon),
which is lauric alcohol 3EO. Mixtures of such
ethoxylated alcohols are also contemplated by the
present invention.
Another class of nonionic surfactants
comprises alXyl polyglucoside compounds of general

w095/27028 ~ ~ 2 1 ~ 4 3 6 2 PcT~sgslo26ss
formula
R0(cnH2nO)tzx
wherein Z is a moiety derived from glucose; R is a
saturated hydrophobic alkyl group that contains from 12
to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3;
x is from 1.1 to 4, the compounds including less than
10% unreacted fatty alcohol and less than 50% short
chain alkyl polyglucosides. Compounds of this type and
their use in detergent compositions are disclosed in
EP-B 0070074, 0070077, 0075996 and 0094118.
The surfactant will generally be included in
the detergent composition in an amount of 5 to 60% by
weight, preferably 5 to 40% by weight and most
preferably from 10 to 2S% by weight of the composition.
According to the present invention the
detergency builder system is based on zeolite MAP,
optionally in conjunction with one or more
supplementary builders. The amount of zeolite MAP
employed may range, for example, from 5 to 60 wt%, more
preferably from 15 to 40 wt%.
Zeolite MAP is described in EP 384070A
(Unilever). It is defined as an alkali metal alumino-
silicate of the zeolite P type-having a silicon to
aluminium ratio not greater than 1.33, preferably
within the range from 0.9 to 1.33 and more preferably
within the range of from 0.9 to 1.2.

woss/27028 5 ~1~ 4 3 6 2 PCT~S95/02699
Of particular interest is zeolite MAP having
a silicon to aluminium ratio not greater than 1.15 and,
more particularly, not greater than 1.07.
Zeolite P having a Si:Al ratio of 1.33 or
less may be prepared by the following steps:
ti) mixing together a sodium aluminate having a
mole ratio Na20:A1203 within the range of from 1.4 to
2.0 and a sodium silicate having a mole ratio SiO2:Na20
within the range of from 0.8 to 3.4 with vigorous
stirring at a temperature within the range of from 25-C
to boiling point usually 95-C, to give a gel having the
following composition:
A12O3: (1.75-3.5) SiO2 : (2.3-7.5) Na20 :P (80-450)H20:
(ii) ageing the gel composition for 0.5 to
10 hours, preferably- 2 to 5 hours, at a temperature
within the range of from 70-C to boiling point, usually
to 95-C, with sufficient stirring to maintain any
solids present in suspension;
(iii) separating the crystalline sodium
aluminosilicate thus formed, washing to a pH within the
range of from 10 to 12.5, and drying, preferably at a
temperature not eYc~e~ing 150-C, to a moisture content
of not less than 5 wt%.
Preferred drying methods are spray-drying
and flash drying. It appears that oven drying at too
high a temperature may adversely affect the calcium
binding capacity of the product under certain

WO 95/27028 ` ~ ` 2 1 8 4 3 6 2 PCT/US95/02699
circumstances.
Commercial sodium metasilicate pentahydrate
dissolved in water and commercial sodium silicate
solution (waterglass) are both suitable silica sources
for the production of zeolite P in accordance with the
invention. The reactants may be added together in any
order either rapidly or slowly. Rapid addition at
ambient temperature, and slow addition at elevated
temperature (90-95-C) both give the desired product.
Vigorous stirring of the gel during the
addition of the reactants, and at least moderate
stirring during the subsequent ageing step, however,
appear to be essential for the formation of pure
zeolite P. In the absence of stirring, various
mixtures of crystalline and amorphous materials may be
obtained.
Zeolite MAP generally has a calcium binding
capacity of at least 150 mg CaO per g of anhydrous
aluminosilicate, as measured by the st~ d method
described in GB 1473201 (Henkel). The calcium binding
capacity is normally 160 mg CaO/g and may be as high
170 mg CaO/g.
Although zeolite MAP like other zeolites
contains water of hydration, for the purposes of the
present invention amounts and percentages of zeolite
are expressed in terms of the notional anhydrous
material. The amount of water present in hydrated

W095/27028 2 ~ B 4 3 6 2 PCT~S95/02699
zeolite MAP at ambient temperature and humidity is
generally about 20 wt%.
The zeolite MAP used in the present
invention preferably has a particle size d50 of 1 to 5
micrometres, for example 2.25 to 5 micrometres,
particularly 2.75 to 5 micrometres.
The quantity "d50" indicates that 50 wt% of
the particles have a diameter smaller than that figure.
According to the invention zeolite MAP may
be the sole builder component or it may be used in
combination with an organic or inorganic cobuilder.
According to a particular embodiment of the invention,
zeolite MAP is the principal builder component.
Suitable organic cobuilders can be monomeric
or polymeric carboxylates such as citrates or polymers
of acrylic, methacrylic and/or maleic acids in
neutralised form. Suitable inorganic cobuilders
include carbonates and amorphous and crystalline
lamellar sodium silicates.
Suitable silicates have the composition:
NaMSix02x+l , YH2
where M is sodium or hydrogen, preferably sodium;
x is a number from 1.9 to 4; and y is a number from 0
to 20. Such materials are described in US Patents No.
4664839; No. 4728443 and No. 4820439 tHo chct AG).

2 1 84362
WO 9S/27028 ` ~ ` PCT/US95/02699
Especially preferred are compounds in which x = 2 and y
= O. The synthetic material is commercially available
from Hoechst AG as S-Na2 Si2O5 (SKS6) and is described
- in US Patent No. 4664830.
The total amount of detergency builder in
the granular composition ranges from 5 to 80 wt%, more
preferably from 15 to 60 wt% and most preferably from
10 to 45 wt%.
According to the present invention the
detergent composition comprises one or more additional
components selected from
(i) anionic optical brighteners which
are N-bonded stilbene derivatives;
(ii) polymers selected from polyamine
N-oxide polymers, copolymers of N-
vinylpyrrolidone and N-vinylimidazole,
polyvinylpyrrolidone polymers,
p o 1 y v i n y 1 o x a z o 1 i d o n e s ,
polyvinylimidazoles or mixtures
thereof: and
( i i i ) m a n g a n e s e
phthalocyanintetrasulphonate.
Examples of suitable anionic optical
brighteners are compounds of the formula:
PhRN NHPh
N ~ `~ CH=CH~ O N
R S0 ~a R R

l~;
w095l27028 2 1 8 4 3 6 2 PCT~S95/02699
wherein
1. R = diethanolamino and R2 - SO3Na:
2. R - morpholino and R2 = S03Na;
3. R = anilino, R2 = SO3Na or H; and
4. R = l-methyl-2-hydroxethylamino, R = S03Na.
Examples of less preferred anionic optical
brighteners include compounds of the formula:
`b-- 3~ CN Ca~
so3~a SO ~a
6. '\~ ~ca=ca~
so Na
Compounds of formulae 1-4 above are
preferred. The optical brightener is suitably
incorporated in the co~position in an amount of from
0.01 to 5.0 wt%, preferably in an amount of from 0.05
to 0.3 wt%.
Alternatively, or in addition, the detergent
composition according to the invention includes a
polymer. The polymers act as dye-transfer inhibiting
agents by inhibiting the transfer of dyes from coloured
fabrics onto fabrics washed therewith. These polymers

2 1 84362
WO g5/27028 . .~ , ~ PCTIUS95/02699
have the ability to co~plex or adsorb the fugitive dyes
washed out of dyed fabrics before the dyes have the
opportunity to become attached to other articles in the
wash.
Suitable polymers are polyamine N-oxide
polymers copolymers of N-vinylpyrrolidone and N-
vinylimidazole, poiyvinylpyrrolidone polymers,
polyvinyloxazolidones and polyvinylimidazoles or
mixtures thereof.
The detergent composition may suitably
comprise from 0.001 to 10 wt%, preferably from 0.01 to
2 wt% and most preferably from 0.05 to 1 wt% of the
polymer.
Suitable polymers for use in the detergent
composition according to the invention are described in
detail in the following.
a) PolYamine N-oxide polYmers
The polymer N-oxide polymers suitable for use may
contain units having the following structure formula :
: I
(I) Ax
R
wherein P is a polymerisable unit, wherein the R-N-o
group can be attached to or wherein the R-N-
O group forms part of the polymerisable unit
or a combination of both.

WO95/27028 -- 2 1 ~3 4 3 6 2 PCT/US95/02699
o o o
NC, CO, C, -O-, -S-, -N- ; x is O or l;
R are aliphatic, ethoxylated aliphatics,
aromatic, heterocyclic or alicyclic groups
or any combination thereof wherein the
nitrogen of the N-O group can be attached or
wherein the nitrogen of the N-O group is
part of these groups.
The N-O group can be represented by the
following general structure :
O O
(Rl)x -N- (R2)y =N- (Rl)x
(R3)z
wherein Rl, R2, and R3 are aliphatic groups,
aromatic, heterocyclic or alicyclic groups
or combinations thereof, x or/and y or/and z
is O or 1 and wherein the nitrogen of the N-
O group can be attached or wherein the
nitrogen of the N-O group forms part of
these groups.
The N-O group can be part of the
- polymerisable unit (P) or can be attached to the
_ polymeric backbone or a combination of both.
Suitabl-e polyamine N-oxides wherein the N-O
group forms part of the polymerisable unit comprise
polyamine N-oxides wherein R is selected from
aliphatic, aromatic, alicyclic or heterocyclic groups.

W095/27028 . ~ . 2 1 ~4362 PCTIUS95/02699
One class of said polyamine N-oxides comprises the
group of polyamine N-oxides wherein the nitrogen of the
N-O groups forms part of the R-group. Preferred
polyamine N-oxides are those wherein R is a
heterocyclic group such as pyrridine, pyrrole,
imidazole, pyrrolidine, piperidine, quinoline, aridine
and derivatives thereof.
Another class of said polyamine N-oxides comprises the
group of polyamine N-oxides wherein the nitrogen of the
N-O group is attached to the R-group.
Other suitable polyamine N-oxides are the
polyamine oxides wherein the N-O- group is attached to
the polymerisable unit. Preferred classes of these
polyamine N-oxides are the polyamine N-oxides having
the general formula (I) wherein R is an aromatic,
heterocyclic or alicyclic group wherein the nitrogen of
the N-O functional group is part of said R group.
Examples of these classes are polyamine
oxides wherein R is a heterocyclic compound such as
pyrridine, pyrrole, imidazole and derivatives thereof.
Another preferred class of polyamine N-oxides are the
polyamine oxides having the general formula (I) wherein
R are aromatic, heterocyclic or alicyclic groups
wherein the nitrogen of the N-O functional group is
attached to said R groups.
Examples of these cIasses are polyamine
oxides wherein the R groups can be aromatic such as

WO95127028 ~ `~ 2 1 8436~ PCrlUS95/02699
14
phenyl.
Any polymer backbone can be used as long as
the amine oxide polymer formed is water-soluble and has
dye transfer inhibiting properties. Examples of
suitabl-e polymeric backbones are polyvinyls,
polyakylenes, polyesters, polyethers, polyamide,
polyimides, polyacrylates and mixtures thereof.
The amine N-oxide polymers of the present
invention typically have a ratio of amine to the amine
N-oxide of 10:1000000. However the amount of amine
oxide groups present in the polyamine oxide polymer can
be varied by appropriate copolymerisation or by
appropriate degree of N-oxidation. Preferably, the
ratio of amine to amine N-oxide is from 2:3 to
1:1000000. More preferably from 1: 4 to 1:1000000,
most preferably from 1:7 to 1:1000000. The polymers
of the present invention actually encomp~cs random or
block copolymers where one monomer type is an amine N-
oxide and the other monomer type is either an amine N-
oxide or not. The amine oxide unit of the polyamine
N-oxides has a Pka < 10, preferably Pka ~ 7, more
preferred Pka ~ 6.
The polyamine oxides can be obtained in
almost any degree of polymerisation. The degree of
polymerisation is not critical provided the material
has the desired water-solubility and dye-suspending
power.

w095/27028 ` .; 2 1 8 4 3 6 2 PCT~SgS/02699
Typically, the average molecular weight is within the
range of 500 to 100,000; preferably from 1,000 to
50,000, more preferably from 2,000 to 30,000, most
preferably from 3,000 to 20,000.
According to a particular aspect of the
invention the detergent composition comprises from 0.01
to 1.5 wt% of polyvinylpyridine N-oxide.
b) Co~olYmers of N-vinvlDvrrolidone and N-
vinvlimidazole
The N-vinylimidazole-N-vinylpyrrolidone
polymers used in the present invention have an average
molecular weight range from 5,000 - 1,000,000,
preferably from 20,000 - 200,000.
Highly preferred polymers for use in detergent
compositions according to the present invention
comprise a polymer selected from N-vinylimidazole-N-
vinylpyrrolidone copolymers wherein said polymer has an
average molecular weight range from 5,000 to 50,000
more preferably from 8,000 to 30,000, most preferably
from 10,000 to 20,000.
The average molecular weight range was determined by
light scattering as described in Barth H.G. and Mays
J.W. Chemical Analysis Vol 113, "Modern Methods of
Polymer Characterization".
Highly preferred N-vinylimidazole-N-
vinylpyrrolidone copolymers have an average molecular

W O 95/27028 ..! ~:- 2 1 8 4 3 6 2 PCTrUS95102699
weight range from 5,000 to 50,000; more preferably
from 8,000 to 30,000: most preferably from 10,000 to
20,000.
. The N-vinylimidazole-N-vinylpyrrolidone
copolymers characterised by having said average
molecular weight range provide excellent dye transfer
inhibiting properties while not adversely affecting the
cleaning performance of detergent compositions
formulated therewith.
The N-vinylimidazole-N-vinylpyrrolidone copolymer of
the present invention has a molar ratio of N-
vinylimidazole to N-vinylpyrrolidone from 1 to 0.2,
more preferably from 0.8 to 0.3, most preferably from
0.6 to 0.4.
According to a particular aspect of the
invention the detergent composition comprises from 0.01
to 1.5 wt% of polyvi~ylpyrrolidone-polyvinylimidazole
copolymer.
c) Polwinyl~rrolidone
The detergent compositions of the present
invention may also utilize polyvinylpyrrolidone ("PVP"
having an average molecular weight of from about 2,500
to about 400,000, preferably from about 5,000 to about
200,000, more preferably from about 5,000 to about
50,000, and most preferably from about 5,000 to about
15,000. Suitable polyvinylpyrrolidones are
commercially available from ISP Corporation, New York,

W O 95/27028 ~ 2 1 8 ~ 3 6 2 PCTrUS95/02699
NY and Montreal, Canada under the product names PVP K-
(viscosity molecular weight of 10,000), PVP K-30
(average molecular weight of 40,000), PVP K-60 (average
molecular weight of 160,000), and PVP K-90 (average
molecular weight of 360,000). PVP K-15 is also
available from ISP Corporation. Other suitable
polyvinylpyrrolidones which are commercially available
from ~ASF Corporation include Sokalan HP 165 and
Sokalan HP 12. Polyvinylpyrrolidones known to persons
skilled in the detergent field: see for example EP-A-
262,897 and EP-A-256,696 are also suitable. According
to a particular aspect of the invention the detergent
composition comprises from 0.05 to 3.0 wt%, preferably
from 0.1 to 0.3 wt% of PVP.
d) Polw inYloxazolidone
The detergent compositions of the present invention may
also utilize polyvinyloxazolidone as a polymeric dye
transfer inhibiting agent. Said polyvinyloxazolidones
have an average molecular weight of from about 2,500 to
about 400,000, preferably from about 5,000 to about
200,000, more preferably from about ,5000 to about
50,000, and most preferably from about 5,000 to about
15,000.
e) Pol win~limidazole
The detergent compositions of the present invention may
also utilize polyvinylimidazole as polymeric dye

W095/27028 ~ ~ 2 1 8 4 3 6 2 PCT~S95/02699
18
transfer inhibiting agent. Said polyvinylimidazoles
have an average MV about 2,50o to about 400,OOO,
preferably from about 5,000 to about 200,000, more
preferably from about 5,000 to about 50,000, and most
preferably from about 5,000 to about 15,000.
- The detergent composition according to the
invention may include the conventional detergent
materials. However, preferably the composition is
free of bleach. Other optional materials which may be
present include, for example, enzymes, fluorescers,
antiredeposition agents, inorganic salts such as sodium
sulphate, lather control agents, fabric softening
agents, pigments, coloured speckles and perfumes.
The detergent compositions of the invention
may be prepared by any suitable method. The
particulate detergent compositions are suitably
prepared by any tower (spray-drying) or non-tower
process.
In processes based around a spray-drying
tower, a base powder is first prepared by spray-drying
a slurry and then other components unsuitable for
processing via the slurry can be sprayed on or admixed
(postdosed).
The zeolite MAP is suitable for inclusion in
the slurry, although it may be advantageous for
processing reasons for part of the zeolite MAP to be
incorporated post-tower.

Woss/27o28 ~ 2 ~ ~ 4 3 6 2 PcT~s95lo26ss
19
Alternatively, particulate detergent
compositions in accordance with the invention may be
prepared by wholly non-tower processes such as
granulation.
The granular detergent compositions of the
invention may be prepared to any suitable bulk density.
The compositions preferably have a bulk density of at
least 400 g/l preferably at least 550 g/l, most
preferably at least 700 g/l and, with particular
preference at least 800 g/l.
The benefits of the present invention are
particularly evident in powders of high bulk density,
for example, of 700 g/l or above. Such powders may be
prepared either by post-tower densification of spray-
dried powder, or by wholly non-tower methods such as
dry mixing and granulation; in both cases a high-speed
mixer/granulator may advantageously be used. Processes
using high-speed mixer/granulators are disclosed, for
example, in EP340 013A, EP 367 339A, EP 390 251A and EP
420 317A (Unilever).
According to one aspect of the invention
there is provided a qranular detergent composition
comprising:
from 5 to 60 wt%, preferably 5 to 40 wt%, of
component (a) defined hereinbefore;
from 10 to 80 wt% of component (b) defined
hereinbefore: and

WO 95127028 - : 2 ~ 8 4 3 6 2 PCT/US9S102699
from 0.001 to 10 wt% of component (c)
defined hereinbefore.
According to another embodiment of the
invention there is provided a liquid detergent
composition, preferably a heavy duty liguid detergent
composition, comprising from 5 to 60 wt% of component
(a) above and from 5 to 40 wt% of component (b) above
and from 0.001 to 10 wt% of component (c) above.
According to this embodiment the liquid
detergent composition may be of any convenient physical
form which may be aqueous or anhydrous. The term
"liquid" used herein includes partly viscous
formulations such as gels. The liquid detergent
composition generally has a pH of from 6.5 to 10.5.
The total amount of detergency builder in
the liquid composition is preferably from 5 to 70% of
the total liquid composition.
The following Examples provide illustrative
detergent compositions according to the present
invention.
The following abbreviations have been used:
LAS - linear C12 alkyl benzene sulphonate
AS - sodium alkyl sulphate
TAS - sodium tallow alcohol sulphate
45E7 _ C14_15 primary alcohol condensed with
an average of 7 moles of ethylene oxide
25E3 - C12_15 primary alcohol condensed with

Wo95/27028 ~ 2 1 8 4 3 6 2 PcT~s9slo26ss
an average of 3 moles of ethylene oxide
PC3 - percarbonate
PBl - perborate monohydrate
PB4 - perborate tetrahydrate
TAED - Tetraacetyl ethylene diamine
PVP - polyvinyl pyrrolidone
PYNO - polyvinylpyridine N oxide
PVPVl - polyvinylpyrrolidone-polyvinylimidazole
copolymer
MnPC - manganese phthalocyanintetrasulphonate.
EDTMP - ethylene diamine tetramethylene
phosphonate
CMC - carboxymethyl cellulose
Brighteners 1, 2 and 3 correspond to the compounds of
formulae 1, 2 and 3 respectively as defined in the
description.

wo gsn7028 2 1 13 4 3 ~ 2 PcTluS9!j/02699
ExamDles
1 2 3 4
LAS _ 7 _ 5
C45 AS 7
C24 AS - - 5.6 3
TAS _ 5
45E7 7 4 6 5
25E3 - - 2
Glucamide - - - 5
Zeolite MAP 38 32 40 35
Na SKS-6 5
citrate 10 12 - 10
carbonate 7 7 10 10
silicate
(2.0 ratio) - 6 5 5
PC3 14 - - -
PBl - 10
PB4 - . 5 - 2
TAED 2.5 3
Protease
_ (Alcalase) 2.0 2.0 2.0 2.0
Amylase - .
(Termamyl) 0.4 0.4 0.4 0.4
Lipase
(Lipolase) 0.4 0.4 0.4 0.4
PVP 1. 0

W095l27028 2 1 ~ 4 3 6 2 PCT~S95/026ss
PVNO _ 0.5
PVPVI - - 0.5
MnPC - - - 0.2
EDTMP 0.1 0.2 0.1 0.1
CMC . 0.8 0~6 0.8 0.8
Suds Suppressor
Brightener 1 - 0.2
2 0.2 - 0.2
3 - - - 0.2
Moisture,
sulphate and
miscellaneous 6.6 4.727.0 15.9
100 100 100 100

Representative Drawing

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Administrative Status

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Event History

Description Date
Inactive: IPC from MCD 2006-03-12
Inactive: IPC from MCD 2006-03-12
Application Not Reinstated by Deadline 2001-03-01
Time Limit for Reversal Expired 2001-03-01
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice 2000-03-01
Pre-grant 2000-01-10
Inactive: Final fee received 2000-01-10
Notice of Allowance is Issued 1999-07-29
Notice of Allowance is Issued 1999-07-29
Letter Sent 1999-07-29
Inactive: Status info is complete as of Log entry date 1999-07-22
Inactive: Application prosecuted on TS as of Log entry date 1999-07-22
Inactive: Approved for allowance (AFA) 1999-07-12
Inactive: Office letter 1998-04-09
Inactive: Delete abandonment 1998-04-08
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice 1998-03-02
Request for Examination Requirements Determined Compliant 1996-08-28
All Requirements for Examination Determined Compliant 1996-08-28
Application Published (Open to Public Inspection) 1995-10-12

Abandonment History

Abandonment Date Reason Reinstatement Date
2000-03-01
1998-03-02

Maintenance Fee

The last payment was received on 1998-12-17

Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following

  • the reinstatement fee;
  • the late payment fee; or
  • additional fee to reverse deemed expiry.

Please refer to the CIPO Patent Fees web page to see all current fee amounts.

Fee History

Fee Type Anniversary Year Due Date Paid Date
MF (application, 3rd anniv.) - standard 03 1998-03-02 1998-02-19
MF (application, 4th anniv.) - standard 04 1999-03-01 1998-12-17
Final fee - standard 2000-01-10
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
THE PROCTER & GAMBLE COMPANY
Past Owners on Record
CHRISTIAAN ARTHUR JACQUES KAMIEL THOEN
MICHAEL ALAN JOHN MOSS
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Description 1999-06-30 23 679
Claims 1999-06-30 2 44
Description 1995-10-12 23 650
Abstract 1995-10-12 1 37
Claims 1995-10-12 4 80
Cover Page 1996-12-06 1 15
Commissioner's Notice - Application Found Allowable 1999-07-29 1 163
Courtesy - Abandonment Letter (Maintenance Fee) 2000-03-29 1 183
Correspondence 2000-01-10 1 33
Fees 1996-08-28 1 57
International preliminary examination report 1996-08-28 10 201
Prosecution correspondence 1999-05-20 5 134
PCT Correspondence 2000-01-10 1 22
Examiner Requisition 1998-11-20 2 33
Prosecution correspondence 1996-08-28 1 21