Note: Descriptions are shown in the official language in which they were submitted.
Q~
--1--
SPRAYABL~ POLIS~
Description
Technical Field
The present inv~ntion relates to aqueous,
silicone-containing polish compositions, and
. particularly to an aqueous~ silicone- and polishing
clay-containing composition that can be applied to
its substrate by spraying.
Background Art
Aqueous compositions containing silicone
polymers have provided a substantial improvement in
the polishing arts, particularly for the preparation
'~~ of water-resistant, hydrophobic coatings on hard
surfaces such as the finish on an automobileO More
;~ 15 recent advances in the art have incorporated an
-- amino-functional silicone polymer into the
composition to provide improved resistance to
detergents.
U.S. Patent No. 3,814,710 discloses a
polishing composition which contains an
~-- amino-alkoxysiloxane that is present along with a
conventional wax, solvent and optional ingredients
including a thickening agent, a finely divided
- abrasive; an emulsifying agent and water. In U.S.
-~ 25 Patent No. 3,960,5~5, a detergent-resis~ant polish is
- said to be formed by the interaction o novel
amino-functional silicone fluids. The polishes made
~~ - from those fluids are said to have improved rub-out
and gloss by the addition of hydroxyl-terminated
dialkylpolysiloxanes and/or silicone resins.
- A precursor polymer that is said to be
~"
~ useful in polish compositions is disclosed in ~.S~
Patent No. 3,890,271. In that patent, a mixture of
hydroxyl endblocked dimethylpolysiloxane, an
amino-functional siloxane and an alkoxy~ or
acyloxy-functional silane are admixed in particular
proportions. Polish compositions are then prepared
from the precursor polymer, to which are added
emulsifying agents, a hydrophobic clay abrasive,
water and the like to form water-in-oil or
oil-in-water emulsions which are said to provide
useful water repellant polishes for automobiles.
In U.S. Patent No. 4,273,584, a detergent
'~!resistant composition is said to be formed from
another precursor polymer prepared from a
hydroxyl~terminated silane which is admixed with a
particular, amine group-containing polysilane that
_is terminated with trialkoxysilane groups~ and
optionally a partially hydrolyzed organo
trialkoxysilane. The thus prepared composition may
then be admixed with an emulsifier, solvent,
abrasive and water to form a detergent-resistant car
polish composition.
The above patents disclose the use of an
-20 abrasive material such as silica, diatomaceous
earth, or a hydrophobic clay, in an aqueous,
silicone-containing composition. However, those
:~compositions are too viscous and thus cannot be
-sprayed by hand pump means cnto the substrate to be
~-25 polished because solid abrasive material-containing
-compositions are formulated either as a paste whose
viscosity is so high that the abrasive particles do
not settle, or as a liquid in which settling
ocurrs~ While in the latter compositions the soli~s
portion is suffic;ently resuspendable to be applied
by pouring, such compositions cannot be applied by
spray means because resettling of the solid abrasive
occurs too rapidly to deliver a substantially
identical composition after several uses.
U.S. Patent No. 4,427,330 teaches an
aqueous, silicone-containing emulsion which is said
to be storage stable and suitable for sprayed
dispensing in an automobile carwash. That patent
combines an amino-functional silicone fluid and a
cyclic siloxane, along with an aliphatic alcohol, an
~ acid present in sufficient quanity to neutralize the
amine groups and an optional cationic emulsifying
agent. The patent does not show or suggest the
~-- presence of a solid abrasive material.
However, it would be useful if a sprayable,
~- aqueous silicone~ and abrasive-containing polish
; composition could be prepared. The present
invention provides such a composition that can be
quickly and smoothly applied to give a shiny finish
in a relatively short time period.
~ Summary of the Invention
_ The present invention contemplates a polish
compositon which contains an amino-functional
silicone polymer and a finely-divided polishing clay
dispersed in an aqueous medium. The composition is
hand- or aerosol-sprayable for a quick application
to a substrate to be polished. The composition
consists essentiall~!T of an aqueous dispersion
..75 ~
~~ including at least about 70 weight percent water,
about 0~5 to about 8 weight percent of a silicone
fluid that includes an amino-functional
- dialkylpolysiloxane as a major constituent, about
0.1 to about 2 weight percent of a self-emulsifying
~- wax, about 2 to about 20 weight percent of a
~ 30 polishing clay, and about 0.01 to about 10 weight
j~'i7 percent of a dispersing agent. The p~ value of the
_ composition is about 7.0 to about 8.3, preferably
about 7.5 to about 8.1.
The amino-functional dialkylpolysiloxane
3S fluid can be derived from the equilibration of an
dialkylpolysiloxane and an amino-functional silane or
siloxane in the presence of a basic catalystO
The polish composition is sprayable by means
of a hand-actuated spray pump device or an aerosol,
bo~h of which impose similar sprayability
requirements, and is substantially homogeneous when
agitated by hand for a period of time less than about
5 minutes prior to spraying.
The composition may be used to polish a
substrate such as an automobile finish by first
~ shak;ng the composition in a hand-actuated spray
container. The shaken, sub~tantially homogeneous
composition is then sprayed onto the substrate,
~-- either directly or first on to an applicator such as
a clo~h. Thereafter, the applied composition is
~ wiped from the sub~trate with substantially no
- rubbing, leaving a shiny finish~
The present invention has many benefits and
advantages.
A particular advantage of the present
;- invention is that compositions embodying this
invention are sprayable.
An additional advantage of the present
~; invention is that, nothwithstanding the relatively
--: 25 high particulate solids content, these compositions
may be sprayed by means of a hand-actuated pump or
aerosol which provides a relatively small amount of
- pressure as compared to a high pressure spray
apparatus such as is availabl~ from a motor-powered
sprayer~
A particular benefit of the present
invention is that it provides a polish having
exceptional performance in regard to the speed and
smoothness of application, gloss and the durability
of the applied polish.
Yet another benefit of the present
invention is that the rubbing that is usually
associated with polishing a substrate such as an
automobile surface is not required~ The excess
polish applied need only be wiped away to obtain a
5 high-gloss, detergent- resistant finish.
Still further benefits and advantages of
the present invention will be apparent to those
skilled in the art from the detailed description and
examples which follow.
Detailed Desc~tion of the Invention
Polish compositions of this invention may
be applied to the surface of an automobile or
another similarly hard surface to provide a shiny
finish. In the following description and examples,
~ 15 an automobile surface will be utilized as an
- exemplary substrate for the composition and method
_ of this invention with the understanding the that
use of the composition and method are not limited
solely to automotive applications.
- 20 The composition of the present invention is
~ a dispersion of several component~ in water. Water
is present in an amount of at least about 70 weight
percent, and more preferably about 75 weight
,-
~ percent, and provides a solids content of about 5 to
-~ 25 about 25 weight percent. Preferbly, the
non~volatile solids content of the compositions
-- embodying the present invention is about 12 to about
~ 18 weight percent.
The polish composition contains about 0~5
to about 8 weight percent of a silicone fluid that
includes an amino-functional dialkylpolysiloxane as
a major constituent. More preferably, the
composition contains about 1 to about 7 weight
percent of the amino-functional
dialkylpolysiloxane-containing silicone fluid.
The amino-functional dialkylpolysiloxane
can be derived from the equilibration of a
dialkylpo]ysiloxane having a viscosity of about 1 to
about 30,00Q centistokes (cs.) at 25C. and an
amino~functional silane or siloxane in the presence
of a basic catalyst. The silicone ~luid may contain
starting materials and reaction products in addition
to the amino-functional dialkylpolysiloxane.
However, the alkyl substituents on the silicon atoms
of the silicone fluid are substantially those of the
dialkylpolysiloxane reactants.
A preferred dialkylpolysiloxane utilized in
the preparation of the amino-functional
dialkylpolysiloxane is a cyclic compound represented
by the formula
~ SiO
I
LR _ n
wherein R is an alkyl radical having about l to about
18 carbon atoms, and n is a number whose value is
about 3 to about lO. Examples of suitable cyclic
dialkylpolysiloxanes which may be used in the
formation of these amino-functional dialkylpoly-
siloxanes are hexabutylcyclotrisiloxane, octamethyl-
cyclotetrasiloxane, decamethylcyclopentasiloxane,
dodecamethylhexasiloxane, tetradecaethylcyclohepta-
siloxane, hexadecamethylcycloctasiloxane and the
like. Cyclic siloxanes of the above formula in which
n has a value of about 3 to about 4 are preferred. It
is particularly preferred that R be methyl.
Another group of preferrred polysiloxanes are
those compounds whose repeating units have ~he general
formula
RySiRzO4_y_z
in which R is as disclosed above, y is a number having
a value of about 0.5 to about 3.0, ~ is a number
having a value of 0.001 to about 1, and the sum of y
and z is a number having a value of about 1 to about
3Ø Exemplary of the foregoing linear or branched
chained siloxanes which are useful are the
trialkylsiloxy end-blocked dialkylpolysiloxanes such
as trimethylsiloxy or triethylsiloxy end-blocked
dimethylpolysiloxanes, diethylpolysiloxanes,
methylbutylopolysiloxanes, dioctylpolysiloxanes and
the like. The trimethylsiloxy end-blocked
dimethylpolysiloxanes are particularly preferred.
The amino-functional silanes or siloxanes
which are react~d w;.th the dialkylpolysiloxanes may be
represented ~y the general formula
[ Q SlO3_a ~ Zb
x
3~ wherein G represents the radicals R, OR" NRI~ or
8--
OSiR3 in which R is the same as R above, Ri
represents hydrogen or monovalent hydrocarbon
radicals having 1 to about 18 carbon atoms, R" is a
substituted or unsubstituted divalent hydrocarbon
radical having 1 to about 18 carbon atoms, a
substituted or unsubstituted divalent hydrocarbonoxy
in which the ~xygen provides an ether linkage, or an
unsaturated divalent hydrocarbon radical/ Q
represents the radicals
R'
R'2NR" - , R'2NR"NR"- and R'2NR"OR"- ,
Z is a radical selected from the group consisting of
R3SiOo 5l and R~2NRnOo 5 in which R~R' and
R" are the same as above, a is a number having a
value of about 0 to about 2, b is a number having a
value of about 0 to about 3 and x is a number having
a value of about 1 to 20,000. Preferably, R' is
hydrogen in which case G is definea as G' and Q is
defined as Q'.
Illustrative divalent radicals represented
by R" are hydrocarbon radicals having from 2 ~o 18
carbon atoms such a ethylene, trimethylene,
tetramethylene~ hexamethylene, octamethylene;
hydrocarbonoxy radicals having the formula
(- OC2H4 -)r~ (- OC2H4OCH2-)r and (- OC3H6-)r
in which r is a number having a value of about 1 to
about 50 such as ethylene oxide, trimethylene oxide
and polymers thereof and alkylene radicals such a
vinylene, propenylene, butenylene, hexenylene and
the like.
Examples of suitable amino-functional
~1Y6~
silanes include but are not limited to beta-aminopro-
pyltriethoxysilane, gamma-aminopropyltrimethoxy-
silane, methyl-beta-(aminoethyl)-gamma-arninopropyl-
dimethoxysilane, omega-aminoh~xyltributoxysilane r
be~a-~aminoethoxy)hexyltriethoxysilane, beta-~aminopro-
poxy~-butyltributoxysilane, methyl-beta-(aminopropoxy)-
propyldi-(aminoethoxy)silane, and t~e like.
Illustrative amino-functional siloxanes are
compounds having the formulas
CH3 ~CH3 . CH3 .
CH3~- - 7io_ - CH3, CH30 -SiO - -CH3, ~CH3)3Sio- ~SiO - -si(C~3~3
73H6 T3H6 . CH
NH2 10 0 CH
T2H~ . fH2
.. _NH2 10 l
f3H5
NH2 15
CH3 ~ TH3 ~ -
(CH3)35io- -SiO - _ _ -SiO - -Si~CH3)3 and the like
,~ 13H6 ~13 5
_NH2 _ 10
Useful amino-functional dialkylpolysiloxanes
and me~hods for preparing them are described in U.S.
Patents No. 3,890,269, No. 3,960,575 and No. 4,247,330,
3~
-10
Silicone fluids containing aminoalkyl
dimethylpolysiloxanes that have primary and/or
secondary amino groups are particularly preferred for
the purposes of this invention. An illustrative,
particularly preferred silicone fluid is that sold
under the trademark SILICONE EMULSION E-184 by SWS
Silicones Corporation of Adrian, Michigan. SILICONE
EMULSION E-184 contains about 60 percent active
silicone fluid emulsified in water. The active
silicone fluid contains about 60 weight percent
aminoalkyl dimethylsiloxane along with about 30 weight
percent dimethylpolysiloxane having a viscosity o~
about 100 to about 30 9 000 CS . and about 10 weight
percent of a cyclic volatile silicone having a
viscosity of about 1 to about 10 cs.
The compositions of this invention include a
polishing clay present at about 2 to about 20 weight
percent, and more preferably at about 5 to about 15
weight percent of the composition. A hydrophilic
polishing clay is preferred~ However, hydrophobic or
oleophilic polishing clays can also be used, if
desired~
It is preferred that the polishing clay
present have a median particle size of about 0.1 to
about 7 microns. Preferably, the median particle size
is about 0.5 to about 5 microns, and most preferably
about 0.5 to about 1 micron. ~i~h re~pect to particle
size distribution, preferably 99.9% of the particles
have a size below 10 microns and 91% of the particles
have a size below about 2 microns.
The preferred hydrophilic polishing clay can
be exempliied by the hydrophilic kaolin-derived
material commercially available under the ~rade~arks
KAOPOLITE SF and KAOPOLITE GG, sold by Kaopolite, Inc.
of Garwood, New Jersey. These hydrophilic polishing
--ll--
clays are compatible with amino-functional silicones
and have the propertie~ listed in the table below~
Table
Properties of Hydrophilic
Clay Abrasions _
KAOPOLITE SF RAOPOLITE GC
~ispersible in Water Water
Brightness 9Q 89
pH of 20% slurry 4.7 4.7
10 Specific gravity 2.8 2.8
Median particle 0.70 1.00
size (microns~
Oil absorption, S0 50
(A.S. ToM~ D 14833
15 ~ardness (Mohs) 7 7
Free Water less than less than
1% 1%
The composi~ions of this invention also
include about 0.1 to about 2 weigh~ percent, and more
preferably about 0.2 to about 1 weight percent, of a
self-emulsifying wax which can be processed in hot
water to form a water-clear wax emulsion. Exemplary
of such a self-emulsifying wax is a material
commercially available under the ~rademark HOECHST
WAX VP~KST, sold by American Hoechst Corporation,
Chemicals and Plastics D;vision, Somerville, New
~er~ey. This material is reported by its
manufacturer to have a drop point of 122~158F.
(A.S.T.M. D 566/49~, an a~id number of 0-5 (A.S.T.M.
D 138/55/T), a saponiication number of 0-15
(A.S.T.M. D 1387/55/T~, and a density at 20 CO of
1.18-1.22 (A.S.T.M. D 70-27). This product is
~upplied as a light yellowish-colored powder and is
an ester ~ormed between montan wax and a
polyoxyethylene diol.
The composition of this invention is a
sprayable dispersion and includes a dispersing agent
which is preferably present at about 0.01 to about 10
weight percent of the total composition, and more
preferably present at about 0.2 to about 5 weight
percent.
A preferred dispersing agent includes a
hydroxy functional silicone dispersed in a volatile
silicone. The hydroxy-functional silicone is a
polymer of dimethylsiloxane having side chains
selected from the group consisting of
polyoxyethylene, polyoxypropylene and mixtures
thereof. The volatile silicone preferably is
octamethyltetracyclosiloxane.
The CTFA names for these materials, listed
in the CTFA Cosmetic In2redient Dictionary, 2 ed.,
1972, published by The Cosmetic, Toiletry and
Fragrance Association, Inc., are Dimethicone Copolyol
and Cyclomethicone, respectively. The CTFA names
will be utilized hereafter, fox convenience and
uniformity.
The dispersion of dimethicone copolyol in
cyclomethicone is commercially available under the
traaemark Q2-3225C, sold by Dow Corning Corporation
of Midland, ~ichigan. This dispersion preferably is
utilized in an amount of about OoOOl to 8 weight
percent of the composition and more preferably, at
about 0.005 to about 3 weight percent. The
dispersion contains dimethicone copolyol and
cyclomethicone in a weight ratio of about 1:5 to
about 1:15, respectively.
Another ingredient of the dispersing agent
for the present composition is an aliphatic sulfonate
having about 12 to about 18 carbon atoms in the
aliphatic chain. A particularly useful material is
-13-
that sold under the trademark TM HS 1 by ~merican
Hoechst Corportion, of Somerville, ~ew Jersey. The
aliphatic sulfonate is preferably utilized in an
amount of about 0.001 to about 8.0 weight percent,
and more preferably at about 0.005 to about 3 weight
percent of the total composition.
The dispersing agent preferably also
contains a colloidal montmorillonite clay having
calcium and sodium ions as principal exchangeable
cations. The montmorillonite clay is preferably
utilized in an amount of about 0~005 to about 5
weight percent and more preferably at about 0.1 to
ahout 2 weight percent of the total composition~
The montmorillonite clay should not induce a
gel in the aqueous composition. A particularly
useful montmorillonite clay whose aqueous
compositions are substantially gel-free is that
material sold under the trademark GELWHITE L by the
Georgia Kaolin Company of Elizabethl New 3ersey. The
montmorillonite clay acts principally to assist in
retarding sedimentation of the polishing clay
particles, but may also act to a small extent as an
abrasive.
The compositions of this invention have a p~
value of about 7.0 to about 8.3. More preferably,
the compositions have a p~ value of about 7.5 to
about 8.1. ~he pH value of the composition as
prepared from the above components is neutral to
slightly basic, and is subsequently adjusted with a
suitable acid, such as glacial acetic acid, to the
desired value.
Maintenance of the pH value of the
composition substantially within the above ranges is
necessary to provide stability to the dispersion
created. Thus, composition pH values below about 7.0
-14-
cause the emulsion to break down. Contrarily, when a
composition pH value greater than about 3.3 is used,
a cake forms which clogs the spray valve, and does
not permit repeated dispensing of substantially the
same composition on repeated product application.
Additional ingredients may also be included
in the polish compositions of the present invention
without departing or detracting from the essential
characteristics of the composition. Exemplary
additional ingredients include fragrance, colorant,
an aliphatic organic solvent and a monohydric alcohol
having 1 to about 3 carbon atoms, inclusive.
Thus, the composition of the present
invention can additionally include about 0.1 to about
10 weight percent of an aliphatic organic solvent,
and more preferably about 1 to about 5 weight
percent. The solvent preferably has a boiling point
of about 230~ to about 310 F., and more preferably a
boiling point of about 250 to about 295 F.
Typically, the organic solvent is an aliphatic
petroleum naphtha. The aliphatic organic solvent
acts as a leveling or spreading agent for the polish
composition.
The compositon of this invention can further
include up to about 7 weight percent of a monohydric
alcohol having 1-3 carbon atoms. Preferably, the
alcohol content is about 1 to about 5 weight percent.
Exemplary of such alcohols are methanol, ethanol,
iso-propanol, and mixtures thereof. The monohydric
alcohol lends freeze-thaw stability to the polish
composition.
The composition of the present invention may
be made as follows. Approximately 15 to 25 percent
of the water utilized in the composition is admixed
with the self-emulsifying wax and anionic sulfonate
-15-
dispersing agent. That admixture is heated with
mixing to a temperature of about 180 to about
200 F. Once that elevated temperature is achieved,
montmorillonite clay is added, and the resulting
admixture is agitated at the elevated temperature for
a period of about 30 minutes. Thereafter, about 10
to about 20 percent of the total water utilized in
the composition is added to the heated resulting
admixture, followed by a major portion of the
monohydric alcohol and a major portion of the organic
solvents when those components are used. The new
resulting admixture is then agitated for about 15 to
about 20 minutes or until it is substantially
homogeneous. The temperature of the product
¢omposition is decreased to about 100 to about
110 F. The cooled composition is then transferred
to a master mixing vessel. The silicone fluid
containing the amino-functional dialkylpolysiloxane
is thereafter added with admixing, followed by a
preservative.
The remaining portion of the organic solvent
i~ placed in a mixing container followed by the
dispersion of dimethicone copolyol in cyclomethicone
and the remainder of the monohydric alcohol. The
admixture so produced is agitated until it is
substantially homogeneous, and then it is added to
the premixed components in the master mixing vessel.
A separate aliquot of about 20 to about 30
weight percent of the total water utilized in the
composition is heated to a temperature of about 90
to about 100~ F. in a separate vessel which is
equipped with an agitator. The particulate,
polishing clay i5 added to the heated water and the
resulting suspension is agitated for approximately 45
minutes. The particulate, polishing clay suspension
~6q~3~
-16-
is then added to the master mixing vessel and the
resulting admixture is agitated until it is
substantially homogeneous. The pH value of the
composition is th~n adjusted to about 7.0 to about
8.3 using compatible acid such as acetic acid, or the
like, and the remainder of the water ~hat is utilized
is added to the composition. The composition so
formed is agitated until substantially homogeneous,
filtered to remove any undesirably large particles,
and then packaged appropriately.
The dispersion so formed is an oil-in-water
emulsion, although some of the dispersing agents,
like the dispersion of dimethicone copolyol in
cvclomethicone, are usually used for the preparation
of water-in-oil emulsions.
The polishing clay particles may settle out
from the dispersion on standing for a relatively long
time period. However, the shaking of a closed
container that is partially filled with the
composition of this invention for a period of less
than about S minutes, and more preferably less than a
period of about 3 minutes, using only hand action,
will readily resuspend the particulate polishing clay
to form a substantially homogeneous composition that
2S can be sprayed through an orifice having a diameter
of about 0.15 to about 0.25 micronsO This
resuspendability and the maintenance of the suspended
condition of the polishing clay particles for a
period of time long enough for spray application of
the polish composition of this invention are distinct
advantages provided by this invention.
The particularly preferred method of spray
application is by use of a hand-actuated spray means
or pump. The term "hand-actuated" is used herein to
mean that the spray means ejects the spray through
the or if ice as a result of a force applied by the hand
as through squee~ing or a downward force exerted on
the spray pump.
The composition of this invention can also be
applied using conventional aerosol spray technology,
however. For example, the composition is placed into
an aerosol can along with a suitable propellent such
as a halocarbon~ e.g., fluorochloromethane, a rela-
tively volatile hydrocarbon, e.g.~ propane iso-butane
or a compressed gas such as carbon dioxide. A dip
tube, stem and actuator are then affixed and the
product is ready for u~e after suitable shaking.
The polish composition of this invention is
utilized by first resuspending the particulate,
preferably hydrophilic, polishing clay particles in
the dispersion that may have settled out, as by
shaking the container of the composition, to Eorm a
substantially homogeneous composition. Thereafter,
the substantially homogeneous composition is sprayed
in excess upon the substrate sur~ace to be polished,
such as an automobile finish, and spread over the
surface of the finish, if necessary. After contact
between the polish ~omposition and the surface of the
substrate to be sprayed has been achieved, excess
polish composition is removed, as by wiping.
No drying period is required to obtain the
detergent resistant benefits of the polish of this
invention, nor is a waiting time required for haze to
form prior to removing the excess polish, nor is
rubbing required to achieve the desired, 9105sy effect.
As used herein, the word "wiping" in its
various grammatical forms is meant to indicate removal
of the excess of applied poli~h composition without
substantial pressure being exerted against the
substrate to be polished. The word "rubbing~ in
its various grammatical forms is used herein to
indicate the exertion of a ~ubstantial pressure
against the substrate to be polished in order ~o
remove the excess polish composition and/or achieve a
5 high gloss when using prior art polishes.
In polishing an automobile~ it is preferred
that the auto finish be clean and dry prior to the
application of the polish of this invention.
The relative speed, ease and s~oothness with
which the polish compositon of this invention can be
applied to an automobile to obtain a superior,
polished appearance is yet another of the salient
benefits of this invention. Tests using a composition
of this invention have shown that cars can be polished
in an average time of less than about 15 minutes.
The present invention is further illustrated
by the examples that follow.
EXAMPLE 1: Automobile Polish Co~ tion
An automobile polish composition of this
invention was prepared from the components:
Component_ Weight Percent
1. Soft water 20
2. Self-emulsifying waXl 0.60
3. Aliphatic sulfonate2 0.10
4. Montmorillonite clay3 0~44
5. Soft water 15
6. Ethanol (denatu~ed) 3.70
7. Organic solvent4 3.20
8. Soft water 16
9. Silicone fluid containing 6.5
Amino-functional
dialkylpolysiloxane5
10~ Preservative6 0.07
11. Organic solvent4 0.10
12. Disperson of dimethicone 0.10
copolyol in
cyclomethicone7
--19--
13. Ethanol (denatured) 0.10
14. Fragrance 0.15
15. Soft water 23.9
16. Polishing clay8 10
17. ~lacial acetic acid 0.02
18. Soft water 0.02
100
1. A montan wax ester sold under the trademark
HOECHST WAX VP KST by American Hoechst Corporation.
2. An aliphatic anionic sulfonate sold under the
trademark TM HS 1 by American Hoechst Corporation.
3~ A montmorillonite clay sold under the trademark
GELWHITE L sold by Georgia Kaolin Company~
4. An aliphatic petroleum naphtha having a boiling
point range of 260F. - 288F.
5. An emulsion of the aminoalkyl
dimethylpolysiloxane-containing silicone Xluid~ present at 60
weight percent active, in water and sold under the trademark
SILICONE EMULSION E-184 by SWS Silicones Corporation.
6. PROXEL CRL available from I.C.I. Americas, Inc.
7. A dispersion of dimethicone copolyol in
cyclomethicone sold under the trademark DOW CQRNING QZ-3225C
by Dow Corning Corporation.
8. A hydrophilic anhydrous aluminum silicate derived
from kaolin and sold under the trademark KAOPOLITE SF by
Kaopolite, Inc.
Components 1-3 were placed in a melting
vessel and heated with agitation to a temperature of
180-190F. until substantially homogeneousO
Component 4 was added at a temperature of about
180F. and the resulting admixture was agitated at
the elevated temperature until substantially
homogeneous. Components 5~7 were added to the heated
admixture. That resulting admixture was ayitated for
about 15 minutes, after which time, it was plac~d
into a larger, master mixing vessel wherein it was
cooled to a temperature of about 100-110F.
~6~
-20-
Components 8-10 were then added to ~he admixture in
the master mixing vessel with continued agitation.
Components 11-13 were premixed in a separate
vessel and then admixed with agitation to the
components in the master mixing vessel. The
fragrance (Component 19) was then added to the
composition with continued agitation.
Component 15 was placed into a separate
vessel and heated to a temperature of abou~
90-100F. Thereafter, the hydrophilic polishing
clay (Component 16~ was added to the thus heated
water, and that resulting admixture was agitated for
a period of 45 minutes to form a settling
suspension. The settling suspension so prepared was
then added to the composition in the master mixing
vessel followed by further agitation for a period of
15 minutes.
Components 17 and 18 were then added to the
master mixing vessel to complete the preparation of
the polish dispersion. The pH value of the several
batches of the dispersion so prepared was about 7.5
to B.l. Specific gravity of the polish composition
at 25C.+ 2C. is about 1.0376 to about 1.0576.
Example 2: Automobile Polishing
The composition of Example 1 was placed into
hand-actuated spray dispenser, and dispensers so
prepared were given to a test panel of individuals
~100) for polishing pre-washed automobiles that weee
manufactured in various countries.
The test panel consisted of 75 men and 25
women who polished cars manufactured in other
countries, as well as sub-compact, compact mid-size
and full-size cars manufactured in the united
States~ The mean elapsed time for polishing all of
-21-
the cars was less than 15 minutes, with the mean
elapsed time for men being about 2 minutes faster
than the mean elapsed time for womenn
The Effect of p~ Value
Example 3: on the Composition _
The composition of Example 1 was prepared
again at pH values of 8.6 and 6.5, respectively,
rather than at a pH value of 7.5-8.1.
The ~omposition having a pH value of B~6
formed a hard cake in the dispenser and contained
particles that clogged the valve. The
non-homogeneity of the composition so produced did
not permit effective application of the desired
composition by spraying/ nor could ~ubstantially the
same composition be dispensed on repeated
sprayings.
The composition having a pH value of 6.5
was unstable, and its emulsion broke down providing
two liquid phases. Agitation of the broken emulsion
did not result in a composition with sufficient
stability to permit spray application of
substantially the same composition on repeated
applications.
The present invention has been described
with respect to the preferred embodiments of the
invention. It will be clear to those skilled in the
art that modifications and~or variations of the
disclosed methods and compositions may be made
without departing from the scope of the invention
set forth herein. The invention is defined by the
claims which follow.
