Rheology modifying copolymer composition

Details Rheology modifying copolymer composition Rheology modifying copolymer composition

C - Chemistry, Metallurgy

08

F

C08F 220/04 (2006.01) A61K 47/32 (2006.01) A61K 7/06 (2000.01)

Patent

CA 2426128

A rheology modifying copolymer composition containing a cross-linked copolymer of unsaturated carboxylic acid, a hydrophobic monomer, a hydrophobic chain transfer agent, a cross linking agent, and, optionally, a steric stabilizer, provides increased viscosity in aqueous electrolyte-containing environments.

L'invention concerne une composition copolymère modifiant la rhéologie, qui contient un copolymère réticulé d'acide carboxylique non saturé, un monomère hydrophobe, un agent de transfert de chaîne hydrophobe, un agent de réticulation, et, éventuellement, un stabilisant stérique. Cette composition confère une viscosité accrue dans des environnements aqueux contenant des électrolytes.

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