Use of graft polymers based on polyalkylene oxides as grayness inhibitors in the wash and aftertreatment of textile material containing synthetic fibers
First Claim
1. A detergent comprising surfactants and builders which contains, as an added soil antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting(a) a polyalkylene oxide which has a number average molecular weight of from 30 to 100,000 and is based on ethylene oxide, propylene oxide and/or butylene oxide with(b) N-vinylpyrrolidone and(c) a vinyl ester derived from a saturated monocarboxylic acid containing from 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a):
- (b);
(c) of from 1;
0.3;
1 to 1;
5;
30, the order of the addition of monomers (b) and (c) in the graft polymerization being immaterial.
1 Assignment
0 Petitions
Accused Products
Abstract
A detergent contains as a grayness inhibitor in the wash and aftertreatment of textile material containing synthetic fibers a graft polymer obtainable by grafting
(a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000 and is based on ethylene oxide, propylene oxide and/or butylene oxide with
(b) N-vinlypyrrolidone and
(c) a vinyl ester derived from a saturated monocarboxylic acid containing from 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a):(b):(c) of from 1:0.3:1 to 1:5:30, the order of the addition of (b) and (c) in the graft copolymerization being immaterial and it being possible for up to 1 mole % of the grafted-on monomers (c) to be hydrolyzed.
51 Citations
8 Claims
-
1. A detergent comprising surfactants and builders which contains, as an added soil antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting
(a) a polyalkylene oxide which has a number average molecular weight of from 30 to 100,000 and is based on ethylene oxide, propylene oxide and/or butylene oxide with (b) N-vinylpyrrolidone and (c) a vinyl ester derived from a saturated monocarboxylic acid containing from 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a): - (b);
(c) of from 1;
0.3;
1 to 1;
5;
30, the order of the addition of monomers (b) and (c) in the graft polymerization being immaterial. - View Dependent Claims (2, 3, 4)
- (b);
-
5. A process for soil antiredeposition during washing with detergents having a reduced phosphate content of less than 25% by weight of sodium triphosphate, which comprises using as a soil antiredeposition agent a graft polymer which is obtainable by grafting
(a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000 and is based on ethylene oxide, propylene oxide and/or butylene oxide with (b) N-vinylpyrrolidone and (c) a vinyl ester derived from a saturated monocarboxylic acid containing from 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a): - (b);
(c) of from 1;
0.3;
1 to 1;
5;
30, the order of the addition of monomers (b) and (c) in the graft polymerization being immaterial. - View Dependent Claims (6, 7, 8)
- (b);
Specification