Invention Grant
- Patent Title: Sulfur acid functionalized latex polymer
- Patent Title (中): 硫酸官能化胶乳聚合物
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Application No.: US14365673Application Date: 2012-12-17
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Publication No.: US09303160B2Publication Date: 2016-04-05
- Inventor: James C. Bohling , Arnold S. Brownell , Catherine A. Finegan
- Applicant: Rohm and Haas Company
- Applicant Address: US PA Philadelphia
- Assignee: Rohm and Haas Company
- Current Assignee: Rohm and Haas Company
- Current Assignee Address: US PA Philadelphia
- Agent Reid S. Willis
- International Application: PCT/US2012/070013 WO 20121217
- International Announcement: WO2013/096162 WO 20130627
- Main IPC: C08F230/02
- IPC: C08F230/02 ; C08L33/08 ; C08F220/18 ; C08F265/04 ; C08K3/22 ; C08F228/00 ; C08K5/42 ; C08K5/521 ; C08F275/00
Abstract:
The present invention is a process for preparing a multistage polymer by contacting under emulsion polymerization conditions an acrylic monomer, a sulfur acid monomer, and a phosphorous acid monomer as described herein. The present invention is also a composition comprising a nonionic surfactant and a stable aqueous dispersion of polymer particles comprising structural units of butyl acrylate, methyl methacrylate, a sodium vinylbenzenesulfonate, and phosphoethyl methacrylate; wherein the polymer particles have a Tg of less than 10° C. The composition of the present invention is useful as a binder for coatings compositions.
Public/Granted literature
- US20140329957A1 SULFUR ACID FUNCTIONALIZED LATEX POLYMER Public/Granted day:2014-11-06
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