Invention Grant
US09169382B2 Carboxyl group containing acrylic RDP and dry mix cement formulations containing them
有权
含羧基的丙烯酸RDP和含有它们的干混水泥配方
- Patent Title: Carboxyl group containing acrylic RDP and dry mix cement formulations containing them
- Patent Title (中): 含羧基的丙烯酸RDP和含有它们的干混水泥配方
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Application No.: US14383586Application Date: 2013-03-05
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Publication No.: US09169382B2Publication Date: 2015-10-27
- Inventor: Linda Kim-Habermehl , Mark D. Westmeyer
- Applicant: Dow Global Technologies LLC , Rohm and Haas Company
- Applicant Address: US MI Midland US PA Philadelphia
- Assignee: Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee: Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee Address: US MI Midland US PA Philadelphia
- Agent Andrew E. C. Merriam
- International Application: PCT/US2013/029024 WO 20130305
- International Announcement: WO2013/134208 WO 20130912
- Main IPC: C04B24/26
- IPC: C04B24/26 ; C08L51/00 ; C04B28/06 ; C04B28/14 ; C08F265/06 ; C04B103/00 ; C04B111/00

Abstract:
The present invention provides water redispersible polymer powder (RDP) compositions that perform well even when redispersibility is fair comprising carboxyl group containing multi-stage acrylic copolymers having an alkali-soluble resin outer stage and one or more inner stage acrylic (co)polymer having a glass transition temperature (Tg) of from −40 to 50° C., one or more nucleating agent having a boiling point of 150° C. to 500° C., and a water solubility of 3.5% or less, preferably, an alkyl isobutyrate and a branched alkyl isobutyrate, and one or more colloidal stabilizer. Also provided are dry mix cement tile adhesive compositions comprising the water redispersible polymer powder an ordinary Portland cement, an alumina rich cement with an alumina content of from 30 wt. % to 85 wt. %, and calcium sulfate. The invention enables a broad range of the claimed acrylic polymers in useful RDPs.
Public/Granted literature
- US20150111995A1 CARBOXYL GROUP CONTAINING ACRYLIC RDP AND DRY MIX CEMENT FORMULATIONS CONTAINING THEM Public/Granted day:2015-04-23
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