Detergent formulations

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/37 (2006.01)

Patent

CA 2236979

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: Image 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 Image wherein R1 is H, OH, C1-C9 alkyl or alkoxy or acetoxy or acetate R2 is H, C1-C3 alkyl or alkoxy, COOR3 R3 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.

L'invention porte sur des formulations détergentes renfermant au moins un polymère hydrosoluble, ou un sel de ce dernier, portant au moins un groupe phosphonate. Comme polymère approprié, il y a Image , où X est H, Na, K ou A; A est un polymère, un copolymère ou un de leurs sels hydrosolubles, comprenant un ou plusieurs des monomères suivants sous forme polymérisée : acides carboxyliques de formule Image , où R1 est H, OH, un alcoxy ou un alkyle C1-C9, un acétoxy ou un acétate, R2 est H, un alcoxy ou un alkyle C1-C3, ou COOR3, R3 est H, Na, K ou un alkyle C1-C10; acrylate d'hydroxypropyle, méthacrylate de propyle, acide 2-acrylamidopropane-2-sulfonique, styrènesulfonate de sodium, allylsulfonate de sodium, méthylsulfonate de sodium, acide vinylsulfonique, et leurs sels; acrylamide, méthacrylamide, tert-butylacrylamide, (méth)acrylonitrile, styrène, acétate de vinyle, sulfonate d'allyloxy-2-hydroxypropyle et dialkylacrylamide. L'invention porte également sur des détergents pour lave-vaisselle et sur des détergents pour lessive, lesquels renferment les formulations ci-dessus.

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