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US 5,207,941 AGranted
Use of water-soluble or water-dispersible grafted proteins as detergent additives
AssigneeBASF SE
InventorsMatthias Kroner, Heinrich Hartmann, Richard Baur, Wolfgang Trieselt
Life of this patent
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Abstract
Phosphate-free and low-phosphate detergents which contain surfactants as essential constituents also contain from 0.1 to 20% by weight, based on the particular formulation, of water-soluble or water-dispersible grafted proteins obtainable by free radical copolymerization of (A) monoethylenically unsaturated monomers in the presence of (B) proteins in a weight ratio of (A):(B) of (0.5-90):(99.5-10).
Claims3
A phosphate-free or low-phosphate detergent comprising:
- a) a surfactant;
- and
- b) 0.1-20% by weight based on the formulation, of a water-soluble or water-dispersible grafted protein obtained by free radical copolymerization of
- (A) monoethylenically unsaturated monomers selected from the group consisting of esters of a monoethylenically unsaturated C.sub.3-8 carboxylic acids with monohydric or polyhydric C.sub.1-22 alcohols, esters of a monoethylenically unsaturated C.sub.3-8 carboxylic acids with the addition products of 1-50 mol of alkylene oxide with 1 mol of a C.sub.1-22 alcohol, amides of C.sub.3-8 carboxylic acids which are derived from ammonia, C.sub.1-22 alkylamines or C.sub.1-22 dialkylamines, nitriles of carboxylic acids, vinyl ethers of C.sub.1-8 alcohols, vinyl esters of saturated C.sub.1-22 carboxylic acids, N-vinylamides, vinylpyridines, acrylamidopropanesulfonic acid, acrylamidoethanesulfonic acid, N,N-dialkylamino-C.sub.2-4 -alkyl(meth)acrylamides, styrene, alkylstyrene and a mixture thereof;
- (B) a protein
- in a weight ratio of (A):(B) of (0.5-90):(99.5-10).
3 more elements
Dependencies are inferred from the claim text.