Method for preparation of hydrophobe containing alkali...

Details Method for preparation of hydrophobe containing alkali... Method for preparation of hydrophobe containing alkali...

C - Chemistry, Metallurgy

08

F

400/4003, 400/50

C08F 2/22 (2006.01) C08F 220/04 (2006.01) C09D 4/00 (2006.01) C09D 133/06 (2006.01)

Patent

CA 1285685

PATENT APPLICATION OF Ching-Jen Chang for IMPROVED METHOD FOR PREPARATION OF HYDROPHOBE CONTAINING ALKALI SOLOBLE OR SWELLABLE EMULSION COPOLYMERS DN 82-53 ARS/rvp ABSTRACT OF THE DISCLOSURE This invention relates to an improved process for the prepara- tion of alkali soluble or swellable emulsion copolymers. The process employs a moderately hydrophobic in-process additive during the poly- merization of the copylymer. The hydrophobe-containing alkali solu- ble or swellable emulsion copolymers display enhanced thickening efficiency in aqueous solutions and compositions.

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