Nova Patents
EP0877076A2

Detergent formulations

Abstract

The invention provides a detergent formulations comprising at least one water soluble polymer, or salt thereof, bearing at least one phosphonate group. Suitable polymers comprise: wherein X is H, Na, K or A; and A is a polymer, copolymer, or water soluble salt thereof, comprising, one or more of the following monomers in polymerised form:- carboxylic acids of the formula wherein R1 is H, OH, C1-C9 alkyl or alkoxy or acetoxy or acetateR2 is H, C1-C3 alkyl or alkoxy, COOR3R3 is H, Na, K or C1-C10 alkyl; hydroxypropyl acrylate, propyl methacrylate, 2-acrylamido-2-propane sulphonic acid, sodium styrene sulphonate, sodium allylsulphonate, sodium methyl sulphonate, vinyl sulphonic acid, and salts thereof; acrylamide, methacrylamide, tert-butylacrylamide, (meth)acrylonitrile, styrene, vinyl acetate allyloxy-2-hydroxypropyl sulphonate and dialkylacrylamide. Machine dish washing detergents and laundry detergents are also provided which comprise detergent formulations of the present invention.

EP0877076A2, drawing sheet 1
Sheet 1 of 17

Term

Term ended

Projected expiry passed 1 May 2018, 8.4 years ago.

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9 claims: 5 independent, 4 dependent

  1. 1
    Detergent formulation comprising at least one water soluble polymer comprising:- wherein X is H, Na, K or A;A is a polymer, copolymer, or water soluble salt thereof, comprising, one or more of the following monomers in polymerised form:- carboxylic acids of the formula wherein R 1 is H, OH, C 1 -C 9 alkyl or alkoxy or acetoxy or acetate R 2 is H, C 1 -C 3 alkyl or alkoxy, COOR 3 R 3 is H, Na, K or C 1 -C 10 alkyl;hydroxypropyl acrylate, propyl methacrylate, 2-acrylamido-2-propane sulphonic acid, sodium styrene sulphonate, sodium allylsulphonate, sodium methyl sulphonate, vinyl sulphonic acid, and salts thereof;acrylamide, methacrylamide, tert-butylacrylamide, (meth)acrylonitrile, styrene, vinyl acetate allyloxy-2-hydroxypropyl sulphonate and dialkylacrylamide.
  2. 4
    Detergent formulation according to any of Claims 1, 2 or 3 wherein the weight average molecular weight of the polymer is below 20,000.
  3. 6
    Use of at least one water soluble polymer or salt thereof bearing at least one phosphonate group as some or all of a builder in a machine dish washing detergent formulation.
  4. 7
    Use of at least one water soluble polymer or salt thereof bearing at least one phosphonate group as some or all of a builder in a laundry washing detergent formulation.
  5. 8
    Use of polymers comprising one or more of:- wherein X is H, Na, K, or A;wherein A is a polymer, copolymer, or water soluble salt thereof, comprising, one or more of the following monomers in polymerised form:- carboxylic acids of the formula wherein R 1 is H, OH, C 1 -C 9 alkyl or alkoxy or acetoxy or acetate R 2 is H, C 1 -C 3 alkyl or alkoxy, COOR 3 R 3 is H, Na, K or C 1 -C 10 alkyl;hydroxypropyl acrylate, propyl methacrylate, 2-acrylamido-2-propane sulphonic acid, sodium styrene sulphonate, sodium allylsulphonate, sodium methyl sulphonate, vinyl sulphonic acid, and salts thereof;acrylamide, methacrylamide, tert-butylacrylamide, (meth)acrylonitrile, styrene, vinyl acetate allyloxy-2-hydroxypropyl sulphonate and dialkylacrylamide sulphonate and dialkylacrylamide as some or all of the builder in detergent formulations.
Independent claims5