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Patent 2024975 Summary

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(12) Patent Application: (11) CA 2024975
(54) English Title: ACTIVE SIZING COMPOSITIONS
(54) French Title: COMPOSES POUR ENCOLLAGE
Status: Dead
Bibliographic Data
(52) Canadian Patent Classification (CPC):
  • 6/222
  • 9/39
  • 6/93
  • 400/9320
(51) International Patent Classification (IPC):
  • D21H 21/16 (2006.01)
  • C08L 33/26 (2006.01)
  • D21H 17/17 (2006.01)
  • D21H 17/23 (2006.01)
(72) Inventors :
  • WATSON, LAWRENCE F. (United States of America)
(73) Owners :
  • WATSON, LAWRENCE F. (Not Available)
  • ALBRIGHT & WILSON LIMITED (United Kingdom)
(71) Applicants :
(74) Agent: SIM & MCBURNEY
(74) Associate agent:
(45) Issued:
(22) Filed Date: 1990-09-10
(41) Open to Public Inspection: 1991-03-12
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data:
Application No. Country/Territory Date
8920456.4 United States of America 1989-09-11

Abstracts

English Abstract


17
ABSTRACT
ACTIVE SIZING COMPOSITIONS
The compositions comprise an aqueous emulsion
containing a ketone dimer reactive sizing agent and an
anionic dispersant or emulsifier such as sodium
lignosulphonate, calcium lignosulphonate or the sodium
salt of naphthalene sulphonic acid. In addition an
extender or modifier such as an anionic polyacrylamide,
an anionic starch or colloid silica can be present to
extend or modify the anionic charge density of the
composition. The compositions are particularly
effective in sizing systems containing cationically
charged fillers, or cationic additives such as certain
retention aids and fluorescent whitening agents.


Claims

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


15
The embodiments of the invention in which an exclusive
property or privilege is claimed are defined as follows:
1. An active sizing composition comprising an
aqueous emulsion of a reactive sizing agent and an
anionic dispersant and/or emulsifier serving to
stabilize the emulsion, the reactive sizing agent
comprising at least one compound according to the
formula
Image
wherein R1 and R2, which may be the same or different,
are hydrocarbon radicals each having at least six
carbon atoms.
2. A sizing composition according to claim 1, in
which R1 and R2 are, independently of each other,
alkyl, alkenyl, cycloalkyl, aryl, aralkyl or alkaryl
radicals.
3. A sizing composition according to claim 2, in
which R1 and R2 are, independently of each other, C12
to C22 alkyl groups.
4. A sizing composition according to any
preceding claim, in which te anionic dispersant or
emulsifier comprises one or more of sodium
lignosulphonate, calcium lignosulphonate and the sodium
salt of the naphthalene sulphonic acid.
5. A sizing composition according to any
preceding claim, in which the dispersant or emulsifier
is present in an amount of 0.5% to 10% based on the
weight of the reactive sizing agent.
6. A sizing composition according to any
preceding claim, including at least one substance wich
extends or modifies the anionic charge density of the
composition.
7. A sizing composition according to claim 6, in
which the extender or modifier comprises one or more
anionic polyacrylamides, anionic starch or colloidal

16
silica.
8. A sizing composition according to any
preceding claim, containing reactive sizing agent in an
amount of 5% to 20% by weight of the composition.
9. A sizing composition according to claim 8, in
which the amount is 10% to 15% by weight of the
composition.
10. A method of sizing paper, using a composition
according to any preceding claim.
11. A method according to claim 10, in which the
sizing is carried out in the presence of a cationically
charged substance.
12. A method according to claim 11, in which the
cationically charged substance is a filler or a
retention aid.
13. A method according to claim 10, in which the
sizing is carried out in the presence of a fluorescent
whitening agent.
14. A method according to any of claims 10 to 13,
which is carried out at the wet end of a paper making
process.
15. Sized paper made by a method according to any
of claims 10 to 14.

Description

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


202~;37~

., ~
r
AC~IVE 8I~ING COMPOSI~IONS
~ hlz lnv~nt~on rel~taz to actlv~ lze- cont~lnlng a
r-~ctlv~ ~izlng Ag~nt and ~-'di~p-r-~nt.
For oonv~ nc-~ the t-rm "papor" i~ u~-d ln thl~
5 Jp~Ci~lo~t~on to mean ~ny fo~ o~ paper~ paporboard and
r~lat-d produot~, tho manu~a~ture of w~lch lnvo~vs~ the
~ctlon o~ a ~ ~lng ag-nt upon c~llulo~lc or other
f lbr-~,
Tradltlonally, paper ha~ b--n ~lzed ~lth ro~ln in
10 co~unctlon w~th ~lum, whlch act- a~ a pr-clpltant
More reo-ntly, r-actlv~ ~lzo~ ~av~ been lntroducod, in
wh~ch a ~lzlng ag~nt reaot~ dlr~ctly wlth ~h~ c-llu108~
of th~ paper On~ cla~ o~ re~ctlv ~lze~ ln common
u~ th- koten~ d1 m~r 61z~ Thece ~re typl~ally
15 u~-d an mul~lon~ ln wat~r in con~unotlon w~th
dl~p~ nt~ ~nd omul~lfl~, whlch ~erve to ~t~bll~
tho o~ul~on
Pr-vlou~ ket~no dlmer 81~e~ hAVe cont-ln-d, a~
dl~per-ant, o~tlonlc componant~ ~uch a- ~ta~ch~,
20 polyaDItne-~ polyamlde~ and polyacryl~mldo~. Th~s~
emul~ r~ and dl~pcr~nts aro ho~og-nl~od ln ~itu
wlth the kotene dlmer to ~orm c~tlonlc~lly ~t~blllsed
emul-lono
Whll~t ~tloactory ln m-ny ~p~llcat~on~, ~h- known
2S cat~on~cally ~tnbll~ed k~ton- dl~er ~lzo~ ~lvo rl-
~to pro~l-m- ln c~rtaln ~ppllcatlon~. Sn partlcular,
co~ln g~d-- o~ p~p-r ~or ll~uld paok~glng and th~
manu~notur~ o~ photogr~phic p~p~r- 1AVO1~e, in th~ir
manu~aotur~, th~ u-- of large quantltl-~ of catlonlc
30 poly~mlde amln~ ~pichlorohydrln ~ln, in ord-r to
pro~uce ~vou~abl- we~-~tr-nqth propertl-- ln the
~lnlsh-d pap~r. Tn a wot-ond proco~s, tho reoln is
no~lly ~dd~d to ~ho th~ok~tock. The r~ln ha~ a hlgh
~ub~t~ntlvlty to cell~lo~e, ~n ord-r to produce
3S ufflcient cover~ge Or th- flbr- Thc ~ntroductlon o~

. , .

2~24~7~
,~, , ~ : .,
... .

2 ~, .
~urth-r oatlonlc componQnt~, ~uch a~ ~tarch, dry-
~tr~ngth ro~ln and cAtlonically sta}~ utene dlmer
~ze a~n lcad to poor retention of tbe component~ b~
th~ collulo-- and result ln ~low drainag~, poor
5 ~tr~ngth prop~rtlo~ ~nd low Jlz~ng ef~lolenoy. ~ ~
~robl-m~ c~n al~o arl~ u~aco slzlng ~ ~ ;
proc-~e~, partloul~rly becau~ trend in the ~ :
m~nuSactUrs o~ ~lnn ~peci~ y paper3 ls to apply th~
~ntionlc ~t~roh-~t~bil~sod k-t~n- dlm-r iz- to th~
10 su~ co o~ th- paper h--t ln con~ unctlon with a
~luoro~cont wh~t-nlng ag-nt ~FWA), Suoh ~g-nts ~re
u~ually ~nionl~ in n~tur- nd thoir u~e ln oon~ un~tion
wl~h c~ or~lo-llt~bllls~d slzo~ c~n l~d to ~ reductlon
ln the ~-ctl~ne~ of the FWA ~nd c~u~- a ~uen~hing
15 ~S~at whloh qlve~ ri~o to a yollower p~p~r.
pr~vlll lnv~ lun pL-c~vld~ o.n ~c~ iDlng
compo-lt~on whlch comprl~-~ an a~ueou~ omul~lon of a
~activ- ~lzln~ ag-nt and ~n anlo~lc dl~p~r~nt a~d/or L .
cmul~ er ~or~lng to ~t~bill~o th- mul~lon, th~
~0 ro~ctlvo ~lsln~ agont ao~prl~ln~ at lo~t one compound
accord~ng to tho formula
CE~ C - C~R2

O - C O ~ ','''',.
25 wh-roln ~1 and R2 a~e, ~ndopendently of oaeh other, _ - ;
hydroc~bon r~d~ cal~ bavlng at l-a~t ~lx c~rbon atom~
more prof-rably alkyl, alkenyl, cy~lo~lkyl, Aryl~
~ralkyl or alk~ryl radlcal~
Slzlng ag~nt~ of the lnventlon can o~f~r ~d~antag~
30 a~poclally ln ~y~tem~ wh~r- c~.tionlc charg-d fillor~
o.g.~ proc~pltatQd c~lclum o~r~on~te~ a~e pr-~-nt or ln
~y~t~ u~lng catlonlc compon-nt~ ~.g., r-t-neion alds
o~ polyncrylam~d-, pol~amlno~ ~SI~ etc. in furni~h~ .! ;... -:
oon919tlny of gro~ndwood ~ thormom-ch~n~aal pulp~ or
chemlcal th-rmomeohanlc~l pulp~ wh-ro llmlt-d hydroxyl
j ..'.'., ":
.~

'~,i
2~2~7~ ~
~1!



~O~ lt~s are avallabl~ for AXD'attach~nt and
r~ct~vi~y,
~ o composltlon~ o~ tho lnv-ntion are partlcularly
~ultabl~ for U8- a~ an internal 3i~e ln 81zing
5 opor~tlon~ carrl-d out at the wet ond o~ a papor-making
proc~
In p-rtlcul~rly proforred si~lng ~g~nt~, R1 and R2
~re, indep~nd-nt~y o~ -~oh oth~r, C12 to C22 alkyl
qroup-, C~4 to C1g alkyl gFOUp- being e~poclally
10 pr-f ~rrot. Tho oo~pouna~ ln whlch R1 and R2 aro each
C14~29 or C16H33 ar- mo~t highly ~referr~d and are
ror-rr-d to hereina~tor a~ "palmit~c~t-arlc dlmer".
~he l~tter co~pound~ can ~o r~gard~d a~ the
cyoloaddltion pro~uct~ of on- koteno ~oloc~l~ of the
15 ~ormula R1-C~-C~O and on- koton- mol-oul- of the
~ormula R2-C~C-O~ wh-r-ln R1 And ~2 ar- o~ch C14H2g
or C16H35
It h~ ~urp~l~ingly ~--n ~ound that, contrary to
oxp-¢tatlono, actlve s~zlng compo~ltlonz ~acordlng to
20 ~h- tnventlon can b~ octlv~ ln th~lr olzlng
prop rtle~, partlcularly when u~od in hl~hly-cationlc
nvlronmonto, ~uch as tho-o encountor-d ln wot-on~
~izlng ln tb- m~nu~actur~ o~ llquld packaglng papers
and photograph~c p~per~ en~on~d ~bov~, and thos~,
2S ~o m~ntionod ~bo~to, wh-n t~ ctl~ e ~ u~-d ~ n
aonnection ~lth ~luoro~nt wh~ten~ng ag-nt~. In
addltlon, papers u-ing c~tlonla ~ r- ~uch a~
precipltat~d calclum aarbonAte can b~ ~iz~d offlciently
uB~ng ~n ~n~onlc~lly cb~rqed alkyl ket~n~ ~imo~ ~lz~ 0~
30 the P~o~ent lnvontlon. Th~t th~ oomposlt~on~ of th~
ln~n~lon a~n b- ffccl:lv- ~izlng ag-nt~ h~ mor~
~u~pri~ing booau~o lt h~- prevlou~ly b~n ~upposed ln
th~ are that ~n anionlcally ~t~bll~ -d ~lzlng ~g-nt
would laak th~ nQce~ary af ~lnlty wlth th- hydroxyl
35 group~ o~ tho c~llulo~ and th~t a ~tlonlcally



.. . , - . .. -.. ~. .... . . . .. , .. .... . , - . :

2 ~ 7 ~ ~


stab~ ed emul3lon WaB neces~ary to provlde t~e
n-c-~ary rotentlon o~ the slzlng agent by reactlon
wlth th~ hydroxyl group~
The dl~par~ant andtor ~mul4lfler ~tablll81ng the
n oan ba any ~ultable anionla d~sp-r~ant or
omul~ , Soalum llvno-ulphonat~, calcium
llgnooulphonat~ and th~ ~odlum ~alt of n~phthalene
~ulphonlc Aold, an~ m'xtura~ ~h-r-o~, ar- oxa~pl~ of
~ulta~lo dl4p-r~ant~. The dl~porsant an~/or omul~lfler
10 l~ pr-f-r~bly u--d ln a total amount o~ 0 5~ to 10~
ba-~d on tho w-lght o~ ~ho r~ctlvo slzing ag-nt, the
80tual amount u~ed ln any partlcular compo~lt~on b~lng
~h~t whlch lmpAr~ a do-~r-d an~onla char~ to th~
dl~per~ lzlng agont.
I~ d-~lr-~, th- anionlo charg- ~-n~lty ln the
~lzlng compo-~tlon- o~ th- ln~ntt on can be oxtondod or
mod~lo~ u~ ng component~ such aJ anlon~c
polyaorylAmldo-, anlonlc ~tarah or colloldal ~lllca as
~mul~ h- ~lzl~g agont 1~ pr-f~rably pr---nt ln
20 the sl8in~ compo~ltlon ln ~n amount o~ 5~ to 20~ by
wolght, moro prof-rably 10~ to 15~ by woight, of th~
~lzlng compo~ltlon.
Th- ~lzlng compo~ltlon~ do~ d, may bo u~d ~n
aoniunetion wlth offootl~- quantltlo~ of m~torlal uch
25 ~ ~ot-ntlon ~ido, dry ot~ength agont- and ~ralnag~
ai~o, for ox~mple alum ~lah aot~ both a~ a dralnage
~ld and a- a ~o-vong-~ for anlonla collo~dal dobri~
~ Th l~ln~ composltion~ o~ tho l~ventlo~ can ~-
mado by ~ny con~enlent proceo~, but prafar~bly ar- madQ
30 by homogenl~i ng ~he r-activ- sl~lng agent ln llquld
for~ ~f n~c~e~a~y ~fter ho~tlng to melt th~ materlal)
with th~ dl~po~4~nt and/or emul-l~ler nd tho
approprlato amount oi' water to ~o~m an aqueou~
emul~lon. For oxampl~, th- dl~p-r~nt ~nd/or
3S ~mul~fl~r 1~ di~-olv~d in wat-r at 65 to ~0C to which
~; ' .
.. i ~, ~ .

~``` 2 ~ 7 5 -~
... ,, , ~
..

. ~
S
1~ added molten k~t~ne dlm-r prem-lted at 65 to 80C.
~h~ xe~ultant mlx i~ homogenlsoa at 2500 to 3500 psl to ~X
form a ~tAble emulslon.
~h- invention w~ 11 n~w be d~-crib~ ~urth-r by way i!
5 o~ ~x~r~pl~
EX~MPr E~ 1 to 4 and COMPARISON EXAMPT.~S 5 to 10 :~
In ~h- ~xp-rlmental work whloh 18 d-~crlbed
h~re~:~t~ ing test~ w~-~ carrled out on a 50s50
dry w ight mlxture o~ bl~ach~d NN ~n~ SW kraf t pulp
10 which had ~o-n ~imultaneouJly be~ten to a 40SP
eQ~polnt ~n an oxperlm-ntal--cal~ v~lley ~ator. Th~ x
~1Z1Qg t--t ~mployod wa~ a 16 hour~ 1 0~ w/v lact~
aclt od~wlck t~t
.~ .
15 Sa~ reDar~tlon wl~hQut r~c~r~ulatlon 1000cm3 of
1 0~ oon~l~t-ncy ~tock w~ plac~d ln a 1 500cm3 b~ak~r,
to whlch th- n-c--~ary amount~ of c~emlcal~ (~ae T~bl- ~
2) w~- uad~d oqu~ntl~lly at 30-~econd lntorv~l6 u~ing ~ -
p~tlo~ ~yrlng~ wlth an accuracy of ~0.1cm3, Th- 30-
20 ooond ~ nt-r~ l w~ ~xt-naed to 60 ~con~s after
~ddltlon o~ the Xymene S57, ~h- pN o~E tho mlxtur~ wa~ n
ad~u~t~d to 7 5 by additlon o~ oodlum blcarbonate
lmmedlat-ly after addlt~ on o~ th~ ~ymon~ 557 M~xlng
o~ tho co~ponent~ wao acco~pll~hed w~th a m-chanlcal ~,
~5 tlr~-r op~rat~t at 100 rp~ Sh~t- wore produoed ~rom
the ~ln~l mlxture ~ n a 3rltl~h st~ndasd h~nd~h~t ~ -
mould and pre~s~d ls~ ~ pn~umatlc~lly op~t~d Voith
handsheet pre~ for S minutes at a pre--ure o~ 50 p~i~
( 3 ~S k ~ he sh~-t- wore t~en drl-d by pa--lng th~m
30 ~our tl~eo around a photo~raph~c drum dy~r op~r~t-d at t
lOSC, givlng ~ re~id-nce ~ o o~ 3,3 mlnut~ ollowed ~
by S~0 m~nu~ ln a forc~d-draught o~ren ~t 1 05C t
Aftor coolls~g ~o~ at lea~t 10 minut~, th~ she~t~ were ~ -
rou~hly cut, lamln~t~d and fln~ly Ctlt to ~ flnal si~e t
35 o~ S 0 c~ x 12 5 cm
i~' '
~ ' '

20~49 1~ ; ~



Sam~l~ PreParation wlth reclrculat~on 3500cm3 of
2 79~ conol~tenoy stook was plAced ln a ~en-lltre pall
Both Kym-n- 557 ~nd AKO ~lz~ were thon add~d to thi5
S ~u~pen~lon Th- pH WA~ ad~t~d to 7 5 by addltl~n of
~odlum blc-rbonAt-. Next, ~u~lclent of thls
"thlok~tock" to cont~ln lOg o~ dry fibr~ wa~ dilut~d to
a tot~l Yolum~ o~ 10qOem3 Th~s r-~ulted ln a
"thinJtock" havlng a conslstency of 1 03~ Next, r :
lO alum, Acoo~tron~th B5 and Staklok 400 were added to the
th~n~took. ~hl~ ~hinn~d ~u~p~nslon wa~ dralned
throu~h ~ Mo~m~r con~l~t~ncy apparatu~. Th- retained r
solld wa~ dl~aard~ and tha ~iltrate w~ then u~-d to
dllute mor- o~ tho th~ ck~tock, ~o th~t ~urth-r ~ ;
15 ~tditlon~ o~ alum, Acco~tr~ngth 8S and Staklok 400 ~1 `
aould b~ mado Thlo cycl~ o~ dilutlon, dralnage and
addltlon o~ ~lum, Acco~tron~tb ~S and Staklok 400 wa~
rap~ated untll 1~ had b-en carrl~d out nlno tlmos
b~fore hand~heet manu~actur-, Ju~t prlor to ~ho-t
20 ~or~atlon~ the pH wa~ galn ad~u~t-d to 7 5 ~y
ad~ltlon o2 further ~odlum blc~rbonate ~horough
ml~lng o~ tho compon~nt~ wa~ ~ooompll~h~d m~nually
Sheet~ wero produced ~ d--crlbed ~bo~e

2g s~mDle T~t~g All ~a~pl~ w-ro w~lgh~d and th-n
pl~ced 2 Scm b-low t~o ~ur~ce o~ a 1,0~ w/v lactic
~cl~ ~oluelon ~t~r 16 hour~, tho JAmp~-s were
r~moved, dried ~nd row~ighed ~h- r~ult~ ar~ ~hown ~n
Table t
i
.
,,
~~~~'~~, , .. '.';.
-.
,,
~'' ' ''

~`` 2~497~ g


~AB~E 1 :-
Samplo Fluld P~ck-up
~xam~l- Di~D-r-ant Pre~sation _ ~a)
1 K-y~m~ S~1 S1 0.3860
2 K-ydim~ S~1 S2 0.4013 ~ . .
3 x.ya- m~ S~1 S3 0.4299
4 ~-ydlm- SP1 S1-~ 0.32 ~ .
Xoydlm~ D10 31 0.3612 ~ .
6 X~ydl~- D10 S2 0.40a8 ~ .
7 Roydlm- D10 S3 0.4330
a XoydLm~ D10 S1 -R 0 . 3 2
9 X ydl~o D125 S2 0.4102
Xaydlm~ D12S S3 0.4191

15 Exampl~ 5 to 10 ar- co~parlzon xa~pl~o omploying
c~tionlcally-~tablli--d AR~ ~lzin~ a~nt~. ~
, '
~ha cod-~ S1, S2, g3 and S1-R d~-cr~b~ th~ ~amp~e
prapar~lon t~chn~qu-~ u~od~
Xoydl~o SPl 19 a ~loper~ant contalnlng ~odlu~ ~
llgno~ulphonat~ and th~ sodium ~alt o~ naphthalone .~ :
~ulphonl¢ acld. It l~ avallablo ~ro~ Albrlght ~ W~lson c
~lmlt~d. l~-ydl~o ~10 and Xaydlmo Dl 25 ~r- cationioally
2S tablll~d AXD ~lzing a~onto oont~lning, on a dry
w-l~ht ba-l-, 10~ AXD ~h~ palmitlo-~t~rlc compound ~ ~ ~
m~n~loned abo~) and, r--poctlv~ly, 2.5~ and 1.25~ ~E ~ `
aationlc poly~-r. Xeydlm- D10 and ~y~lm~ D125 are
aloo ~vallable ~r3m Albr~g~t ~ on ~lmitad~

~"~ , ~;
, ~ '
,:
~' ~
. ~
'-'' ~:',.



TA3~E 2
Addl~ion ~eau~nce
S1 ~1) 8~01b/~ ~4.0 ~g/t) Xymen~ 557
~polyam~d~ am~ne epl~hlorohydrin, .
a~aila~le ~rom ~erculo~ 20wder Co.) :~
~2) 7.01bt~ ~3.5 kg/t~ AXD ~p~lmitlc-~tea~lc
dlm~r) .
t3~ 1,01b/T ~0.5 lcc/~) ~lum
~4) 4.01b/~ ~2.0 k~/t) Acooot~onyth 85 . :
1~ ~an anlo~lc dry ~treng~h agent .~
c~mpri~lng polyacrylamld~ dry
polym-r on dry ~ibrc)
(S) 10.0lb/~ (5.0 k~/t) Staklok 400
~o~tlonla corn ~tarcb, avallablo from
9tal~y Man~acturlng Co.)

S2 ~ .OlbJ~ ~4.0 kg/t) Xymen~ 557 : :~
(~) 7,01b/~ ~3.5 k~/t) AXD ~a~ abovo) ~ ::
~3~ 1.Olb/T ~0.5 ~g/t) alum ;
~4) 10.01b/~ ~5.~ k~/t) Sta~lok 400 . :-
tS) 4,01b/~ ~2.0 kg/t) ~aao~trongth 8~
. ;.
S3 ~ S1
~2~ 7.01b/~ (3.5 k~/~)AXD ~a~ ~bov-) and
10.101~/T ~5,Q kglt) Sta~lok 40~, :
promlxed -. ~.
~3) 1.01b/~ (0.5 kg/t) alum :.:
~4) 4.01b/T t2.0 kg/t) Accostronqth 85
,, . ,:
S1-R an S1 but with r~clrculatlon

In ~ac~ additlon ~equ~no~, the AXD w-~ ~dded tog~th~r~ ; .:
with t~o xoyd~me SPl tin ex~mpl~a 1 to ~) and as A
compon-ne o~ th~ K~ydlm~ D10 or D125 ~n cxa~plo~ 5 to
35 1~), an AXD-X~ydime SP1 ~mul~ion ha~lng boen o~med by

--` . 2~2~7~ : -
.


g ~ .
meltln~ the ~XD at 6S to 80C, dl~olving the molten
AKD in wster at 65 to 803C and ho~ogenlsing the mixture
wlth Reydlme SP1 at 2500 to 3000 p91~

S Example~ 1 to 4, when compared with Ex~mples 5 to 10,
~how fluld plck-up~ (odgewlck) w~th anlonlc agents
compar~bl- to or botter than thos~ o~ c~tlonlc agents
3xampl-~ 4 and 8 show Lh~L b~tter :~sult~ can be
atta~n~d with reclrculation wh~ch mo~t reallstlcally
10 ~i~ul~tes the paperma~ng proce~s

EXAMPL~S 11 to 15 and ~OM~ARI9ON EXAMP~ 16
Ed~wlok o~alu~tlon tests oon~l~tin~ of two parto
~ ormation oi' sh~-t~, and
~2) Co~tlng And lactlc aald t-zt~ ;'
wore ~a~rlod out on ~ urth-r ~zlng composltlons
~he re~ults aro cloarly lndicative o~ the ~act that
Anlonlc ~atlv~ ~lzing aompo~eLons porSorm w~ll in the
to~t~ and ar~ ~ultablo ~o~ UJ- ln ~lz~ng p~pors ~or
~0 th- liquld paoka~lng lnduotry,
Proc~d~r-
Stook u-e~ w~ 50/S0 h~rdwood/~oStwood bo~t~n to a
Schopp-r ~olqlar of 40.
~hemi~L ~ddlt~on~
2S ~hlckztock: 3.2~ A/R ~-t ~trongth ro~ln (Kymene 557)
0,35~ ~XD/Flbre ~lzlng oompo~ltion
ThlnJtoc~ 0,05~ Dry Alum/Fibre
2 kg/t Accostr~ngth 85
1~ Dry St~lok 400
30 The proc~ur~ wa~ follow~d for oaoh o~ flv~ ~izing
compo~ltlono ha~lng the follow$ng con~tltu~t~
Exampl~ 11 100g Ket-n~ Dimar ~palmitlc-~t-arlc)
1 25g Orotan ~ur~ctant)
4 5g W~nin t~urfaatant)
~5 aoog Wat~r I ~ ~
- ' ~' ,;

, . ~',;~ '.

2 ~ 7 ~ ~ :
,~,` . ::
...."
.:.,
13 : .
Ex~ple 12 1~0g ~eten~ Dl~or ~palmi~lo-st-~rlc)
1~25g Orotan :.
.Sg Wanin
l.~g ~ercol lS5 ~50~ ~olid Aniontc
Polyacryl~mld-)
800g Wator .
EX-~pl- 13 100g X~t~n~ Dlm-~ ~palmitlc-~t~ariC1
1.2S~ Orot~
4.5g Wanln
~6g BMA (cont~lns anionlc ~lllca) :.
~15~ ol~
133~ Water ~ ~ :
~x~pl~ 14 100g Xet~n~ Dl~or ~palmitic-~te~lc)
1.25g Orotan 7
lS ~.5~ W~nln
333g 1/2 BMA
166g W~ter , ~l :
Ex~mpl~ 15 100~ ~-tene ~im~r ~palmltic~4~aric)
1.25g orotAn :. .
4.5g Wanln ' ' ~ :
a.s~ ~ab 99~ ~x ~o~u~tt-) Anlonio Starcb ~ .
~25~ Wat~r
A~ter aomblnAtion oi' th~ ~bov~ matorial~, i'urth~r w~t~r
was add~d to ad~ust th~ eo~po~itlon~ to ~n AXD ~olld~
~5 oontont of 10~ by wolght.
....
Tho to~t~ aon~lotod of two part~: 1
, ~ .
Part 1t : ;
250 gsm sheets werla pro~uc~d on labo~atory sheet~
form~ng appa2~tu~ and the oon91~'cency of the tl~ln~tock
w~ 0.5~.
The ~b~ots wor~ drl~d a~ 10~0C for 8 mlnut~ then
oven ¢urQd fox 5 mlnut~s,
35 ~
..
:~i ' .,

7 ~ ~

.~
11 , ~
Pa~ 2
L~ctlc acla lmmer~lon teBt~ ~re c~rrled out on the ~
~hoet~. ~h- ~h-ets we~ oo~t~d wl~h t~po and cut to jj
12.5cm x 5cm otrlp~. Tho~o ~t~lp~ w~re w~ighed bo~or~
S lmm~r41On ln 2.Som o~ 1~ lactlo aald ~or 15 hours. Th~
strip- wero th-n r-w ~ghed ~nd t~o plckup c~lc~lated ln ~4
grAm~. ~h~ av~rage o~ 3 r~ult~ WA~ takon for eaah
~l~lng ~ompo~ltlon, ,¦
~ho edgowlo~ to~ts ga~o th- followlng results~ Jl;,
~xa~le Ed~ewiok (~) ~ Picku ,~
11 0.2~7 6.B
12 0.174 7.2 i~
1~ 0.316 12,7
14 0,317 t2,~ "'
0.185 7.6 ~
16 0.181 7,9
Examplo 16 i4 a oomparlson ex~mplo u~lng ~oydim- D10. ~
~he9e ro~ult~ o~-rall lndlcato th~t anlonlo AXD ~izing '!~
co~o~ltlon~ p-rform a- woll i~ not ~llgh~ly bettor
ao th~n compo~ltlon~ ln sltuationa wh-re hl~b lo~elJ of
c~tlonlclty ar- pro~ent. ~h~ co~po~ltlon~ aro '~
th~rofore ~ultable for u-- ln th~ liquid p~ck~glng t
indu~try. . i~
: .
25 EXANP~ES 17 to 19
A ~rl~- of anlonlo ~lzo compo~ltlon~ wore propA~ed and :.
to~t~d: t
Com~o~ltion 1 2 3
A~t tl~/Dl~-r~n~
Naphth~l~n~ Su~phorlla Aald 1,25 1.2S 1.25 -:
Na ~i~no~ulphos~at~ ~.5 4,5 4,5 l~
As~onla ~oly~oryl~.mld~ - l.a
Collol~l Silica - - 37.S
A~yl Xoton~ Pim~r 100 100 100 `Jt ,"~
35 li~lmlelc/Sto~ric

7 ~ ~
!

12 il
All amounto ars ~xpressed a~ dry grams of ~aterial. 3
'11 ':
~mulsion Manu~actu~e Proceduro
~n ~ach c~- th~ proc~- water wa~ acld~lod prlor to
S th~ addltion o~ dl~po~ants. Tho ~xturo wa~ ~ated to
70C bo~oro add~ion ~o a laboratory homogenlzer wblch
wa~ ~roh-at-d to the 9~e tempe~atur~. Homogonizatlon
pr-~-ur~ wa~ ad~u3te~ to 350Q polg t24 M Pa) ~ideally
2500 to 5000 p~lg (17 to 34 M Pa)). Molten alkyl
10 k~ton- dl~-r wax was added at ~0C and allowed three
theor~tlcal pas~o~ plu~ one to dlocharq-. Upon
dl~c~arg~, th~ product wa~ pa~d through a 200 me~h '~
~tlt~r and the t~mperatur- rapldly reduced to below
2~C. . . .
5 r~boratorY P~ocduro~ "
a~ ~tock Prop~,~atlon ~ -
All wo~k WA8 ~o~or~d on a SO:S0 mlxture of q -
hardwood and ~o~twood bo~ten ~ n a Valley Beater to .;
~OOSR ~300 CSF) .
20 b) Ch-mlc~l Addltlvo~
Cb~mlcal addltlon~ wor- mad- u-ing ~yring ~ havln~ j~
An acouraay o~ ~ 0 1 cm3, All chomlcal addltlv~
oxcop~ praoipltatod calclum carbonato w-ro dlluted ,
pr~or to u~ for aoouraoy o~ ~ddlt~on. ~'
~5 Tl~c proolp~t~tod o~lclum carbonate used ~or thls
woxk w~ ~ oommoro~lly ~v~ grado Alb~car HO t ~:
mado at 20~ sollds wlth no dlsper~ant ~dded.
Partlclo ~lze avQrag~d 2.7 mlcron- wlth a Zota
pot-ntlal o~ ~5 mv
30 c) Sl~ -t~
~h~ ~z~ t~t ~mploy~d ~n thls work was a 2-mlnut~
Cob~ t--t und-r ~t~nd~r~

35 ---~~'~~~ ,. , ~

.. .

.4;g~ I


R ~ult~
Ch-mio~l Ad~itlon- - lb~/~on dry b~ls on ~lbre
~ x~ Z~n. ~b Si2ing g/m2
ck~x~ tlon 0~ 0~ Nhtur~l
Eu~le S~xh Flll-r S~ze/~p A1~ r Cw~d CNred
17 lO.O 300 3.0~1 ) a.s 4040 q1
18 lO.O 3~0 3,~(2) 0~5 3C36 37
l9 10.0 300 3.0(3) 0.; 4441 38
1 0 , ,;, '
St~roh-~t~lok 400 CatLon~c Pota~o St~roh oomm~rcially.
available ~rom ~taley StArch Products ~td. ~ :
r ~ olpltated calclum oarbonat~ - 8e~ abov~
81S- - Compo~ltlon 1, 2 or 3 ~ above.
1~ Retentlon Ald--Hydraid ~RP-95~. Cattonic
polyacryla~lde aommorcl~lly a~allabl- ~om Calgon ~td.
. ~ .:., ... ~:
M~cblne T~l~l Data
Anlonlc ~lz- compo~l~lon (l) o~ Exampl- 11, wa- te~ted : .. ~.
20 ~g-ln-t a co~pctltl~, oa~lonlcally ~tab~l~zed ~Z. : ~.
A~uapal C348 ~uppll-~ com~orc~ally by ~orcul~ Powd~r
Co. 8lsing w~ ~-a~urod to A ~ndard 1-~ln. Cobb :
t-~t. .
.: ,: .
2S Maahln~ Furnl~h on 60q/m~ Wovo ~udc
Fl~rouo - Cb-mlthormal mochanloal pulp SO~ .
Whl~ Offcut~ 17
hlt~ Lot~r Wa~t~ 17~ l .
~hlt~ N~t~ Ro~oot~ 8
o~n Brok- 8
Ch~lo~l~
R~ontlon Ald - Cationlc Polya~ryla~ Nal~loc 4662
oom~ol-lly avallablo ~rom Naloo ~td.
Flll-r~ - Calclum carbonat~ add~tlon to A ~pocl~i~d
35 Jhoot a~b o~ 23~ w,o,f,



r ~=

~ } ~ S~

~2~

~3

1 4 : ~3
Size
A~itio~ Retention Sizing/srln C~
~ as Aci~ on Oven Cur~d
Slze ~ype Rece~ed gJtcnne ' ~; Sheet Ash 3 min at 105C
A~el 3.7 ~57 2~.4 17.7
5 C34B ~.
~cn~ 1,6 257 22.g 16.9
9~
~.''
The8e r-~ult~ aro avet~a~ed ovor a poxio~. o~ 5 hours d
o~ oontlnuou~ machino oporation. ~ .
.~
~''
,


j




,~
~!

:1; ' . :

Representative Drawing

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Administrative Status

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Administrative Status

Title Date
Forecasted Issue Date Unavailable
(22) Filed 1990-09-10
(41) Open to Public Inspection 1991-03-12
Dead Application 1993-03-10

Abandonment History

There is no abandonment history.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Application Fee $0.00 1990-09-10
Registration of a document - section 124 $0.00 1991-06-21
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
WATSON, LAWRENCE F.
ALBRIGHT & WILSON LIMITED
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Cover Page 1991-03-12 1 55
Abstract 1991-03-12 1 38
Claims 1991-03-12 2 116
Drawings 1991-03-12 1 14
Description 1991-03-12 14 808