Waterborne thickeners and dispersants having improved...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 220/04 (2006.01) C08F 220/12 (2006.01) C08F 290/06 (2006.01) C08G 18/28 (2006.01) C08G 18/72 (2006.01) C08G 18/81 (2006.01) C09D 131/02 (2006.01) C09D 133/06 (2006.01) C08F 212/08 (2006.01) C08F 220/06 (2006.01)

Patent

CA 2373919

Improved dispersants and thickeners for use with latex polymers are disclosed which are polymerized from monomers having crosslinking functionality or elevated levels of macromonomers, or both. Latex polymers suitable for use with the thickeners and dispersants of the present invention can be prepared by a two stage polymerization of a first stage polymer and a second stage polymer wherein a monomer having crosslinking functionality is included in either the first stage polymer, the second stage polymer, or both.

L'invention concerne des agents dispersants et épaississants améliorés utilisés avec des polymères de latex, polymérisés à partir de monomères possédant une fonction de réticulation, des niveaux élevés de macromonomères, ou les deux. Les polymères de latex appropriés pour être utilisés avec les agents dispersants et épaississants de l'invention peuvent être préparés par une polymérisation en deux étapes d'un premier polymère et d'un second polymère, au cours de laquelle un monomère possédant une fonction de réticulation est introduit dans le premier ou le second polymère, ou dans les deux.

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