Invention Grant
- Patent Title: Polymer encapsulated titanium dioxide particles
- Patent Title (中): 聚合物包封的二氧化钛颗粒
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Application No.: US14000444Application Date: 2012-02-22
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Publication No.: US09234084B2Publication Date: 2016-01-12
- Inventor: James Keith Bardman , Karl Allen Bromm
- Applicant: James Keith Bardman , Karl Allen Bromm
- 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/US2012/026047 WO 20120222
- International Announcement: WO2012/116025 WO 20120830
- Main IPC: C09C1/36
- IPC: C09C1/36 ; C08K3/22 ; C08L33/08
Abstract:
The present invention relates an aqueous dispersion of low Tg polymer encapsulating TiO2 particles and a process for preparing the dispersion. The encapsulating polymer is a (meth)acrylate polymer, a styrene-acrylate copolymer, or a vinyl acetate-(meth)acrylate copolymer, or a combination thereof, and the encapsulating polymer further contains units of sodium styrene sulfonate. The present invention provides encapsulated TiO2 particles with low gel that are film-forming at ambient temperatures, especially for coatings applications.
Public/Granted literature
- US20140011943A1 POLYMER ENCAPSULATED TITANIUM DIOXIDE PARTICLES Public/Granted day:2014-01-09
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