Obtaining enhanced paper production using cationic compositions containing diol and/or diol alkoxylate
AssigneeWitco Corporation
InventorsNeil A. Jenny, Robert O. Keys
Life of this patent
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Abstract
Enhanced paper debonding and softening are achieved by producing the paper from an aqueous suspension of fibers which contains one or more cationic agents and one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms.
Claims23
A process for producing paper, comprising forming an aqueous suspension of fibers into a sheet and drying the sheet, wherein the aqueous suspension comprises 0.01 to 0.05 wt. % of a quaternary ammonium component, and a nonionic component which is present in an amount corresponding to a weight ratio of 1:30 to 5:1 with respect to said quaternary ammonium component and which is selected from the group consisting of compounds of the formula
- HO--R--OH
- and mixtures thereof wherein
- R is saturated, straight, branched or cyclic alkylene containing 7 to 12 carbon atoms.
A process for producing paper, comprising forming an aqueous suspension of fibers into a sheet and drying the sheet, wherein the aqueous suspension comprises 0.01 to 0.05 wt. % of a quaternary ammonium component, and a nonionic component which is present in an amount corresponding to a weight ratio of 1:30 to 5:1 with respect to said quaternary ammonium component and which comprises a compound of formula (1)
- HO(X--O).sub.x --R(O--Y).sub.y --OH (1)
- and mixtures thereof wherein each X is independently ethylene, straight or branched propylene, or straight or branched butylene,
- x is 0 to 40;
- each Y is ethylene, straight or branched propylene, or straight or branched butylene;
- y is 0 to 40;
- and
- R is saturated, straight, branched or cyclic alkylene containing 4 to 12 carbon atoms wherein one or both of x and y is greater than zero.
A process for producing paper, comprising forming an aqueous suspension of fibers into a sheet and drying the sheet, wherein the aqueous suspension comprises 0.01 to 0.05 wt. % of a quaternary ammonium component, and a nonionic component which is present in an amount corresponding to a weight ratio of 1:30 to 5:1 with respect to said quaternary ammonium component and which is selected from the group consisting of compounds of the formula
- HO--R--OH
- and mixtures thereof wherein
- R is saturated, straight, branched or cyclic alkylene containing 7 to 12 carbon atoms, and the quaternary ammonium component is selected from the group consisting of di(hydrogenated tallow) dimethyl ammonium methyl sulfate, methyl-1-oleylamidoethyl-2-oleyl-imadazolinium methylsulfate, methyl-1-tallowamidoethyl-2-tallow-imadazolinium methylsulfate, and compounds of any of the formulas ##STR31##
- R.sup.23 --(C(O)O(CH.sub.2).sub.1-5).sub.0-1 --C(O)NH(CH.sub.2).sub.2-5 --N(R.sup.23a)(R.sup.23b)--(CH.sub.2).sub.2-5 --OC(O)R.sup.23 X.sup.-
- wherein each R.sup.21 is independently a saturated or unsaturated alkyl or alkylene radical containing 12 to 22 carbon atoms;
- Q.sup.21a and Q.sup.21b are alkyl containing 1 to 4 carbon atoms or benzyl, --CH.sub.2 CH.sub.2 OH, or --CH.sub.2 CH(OH)CH.sub.3, or Q.sup.21a can be R.sup.21 --C(O)--(O--Alk.sup.21)).sub.1-4 --;
- each Alk.sup.21 is independently C.sub.2 H.sub.4 or C.sub.3 H.sub.6 or C.sub.4 H.sub.8,
- each R.sup.23 is independently straight or branched alkyl or alkenyl containing 8 to 22 carbon atoms;
- R.sup.23a is straight or branched alkyl or hydroxyalkyl containing 1 to 3 carbon atoms, benzyl, or --C.sub.2 H.sub.4 OC(O)R.sub.4 wherein R.sub.4 is straight or branched alkyl or alkenyl containing 8 to 22 carbon atoms;
- R.sup.23b is H, --CH.sub.3, --C.sub.2 H.sub.5 or benzyl;
- and
- X is an anion.
Dependencies are inferred from the claim text.