Processes for preparing aqueous polymer emulsions

Details Processes for preparing aqueous polymer emulsions Processes for preparing aqueous polymer emulsions

C - Chemistry, Metallurgy

08

L

C08L 33/02 (2006.01) C08F 220/04 (2006.01) C08F 290/06 (2006.01) C08G 65/26 (2006.01) C08L 29/10 (2006.01) C08L 55/00 (2006.01) C09D 7/00 (2006.01) C09D 129/10 (2006.01) C09D 133/02 (2006.01) C09D 155/00 (2006.01)

Patent

CA 2166195

This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.

L'invention se rapporte à des procédés de préparation d'émulsions aqueuses de polymères utiles comme agents épaississants de compositions aqueuses, permettant de réduire les dépôts et/ou la formation d'agrégats. L'invention se rapporte également à des procédés permettant de réduire les dépôts et/ou la formation d'agrégats dans les procédés de préparation d'émulsions aqueuses de polymères utiles comme agents épaississants de compositions aqueuses. L'invention se rapporte en outre à des polymères solubles en milieu aqueux alcalin ou gonflant au contact de celui-ci et qui donnent des épaississants utilisés dans des compositions de revêtement aqueuses, spécialement dans les peintures au latex.

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