Water-soluble graft polymers

Details Water-soluble graft polymers Water-soluble graft polymers

C - Chemistry, Metallurgy

08

F

C08F 283/06 (2006.01) B01F 17/00 (2006.01) C04B 24/16 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C08F 8/00 (2006.01) C08F 8/32 (2006.01) C08F 285/00 (2006.01) C09K 8/24 (2006.01)

Patent

CA 2110884

- 1 - Abstract Water-soluble graft polymers are described which have been produced by a) radical grafting of a polyalkylene oxide of the general formula I Image in which R1 = -H, -CnH2 n+1, -C6H4 -CnH2 n+1, Image , Image , -(CH-R2)m NHR2, -(CH-R2)mOH, -(CH-R2)m -COOH, -CO-R5 R2 = -H, -CH3, -C2H5 R3 = -H, CnH2 n + 1 , -CmH2m -SO3Na, -(CH-R2)m NHR2, -(CH-R2)mOH, -(CH-R2)m -COOH, -CO-R5 R4 = -H, -(CH-R2)m -COOH, -CO-R5 R5 = -CmH2 m+1, -C6H5, -(CH-R2)m -COOH, -C6H4 -COOH - 2 - n denotes 1 - 18, m denotes 1 - 5, x denotes 2 - 200, y denotes 0 or 1 with an ethylenically unsaturated mono or dicarboxylic acid or their anhydride and subsequently b) derivatising with a primary or secondary amine and/or alcohol. These graft polymers are suitable as dispersants for inorganic binding agents containing water such as e.g. cement, gypsum, anhydrite.

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