| 发明名称 | Stain blocking compositions | ||
| 摘要 | An aqueous coating composition for blocking stains and a method of using the coating composition is described. The coating composition includes an aqueous dispersion of a copolymer that is derived from a single stage emulsion polymerization of an ethylenically unsaturated nonionic monomer, greater than 0 and less than 1.5% by weight of an ethylenically unsaturated strong acid monomer or salt thereof, and greater than 1.5% and less than 3% by weight of methacrylic acid. | ||
| 申请公布号 | US9562162(B2) | 申请公布日期 | 2017.02.07 |
| 申请号 | US201614996775 | 申请日期 | 2016.01.15 |
| 申请人 | BASF SE | 发明人 | Wildeson Jacob;Kelly John;Fujii-Cosyns Audrey;Wiese Harm |
| 分类号 | C08F2/22;C08F2/44;C09D5/00;C09D133/00;C09D133/08;C09D133/10;C09D143/02;C09D133/12 | 主分类号 | C08F2/22 |
| 代理机构 | Meunier Carlin & Curfman LLC | 代理人 | Meunier Carlin & Curfman LLC |
| 主权项 | 1. An aqueous coating composition for blocking stains, comprising: an aqueous dispersion comprising a single stage emulsion copolymer having a glass transition temperature (Tg) of from 0° C. to 45° C. and derived from a single stage emulsion polymerization of ethylenically unsaturated nonionic monomers comprising from greater than 0% to 60% by weight styrene, one or more of 2-ethylhexyl acrylate and butyl acrylate, and greater than 0 to 5% by weight ureido functional monomer; greater than 0 and less than 1.5% by weight of an ethylenically unsaturated strong acid monomer or salt thereof; and greater than 1.5% and less than 3% by weight of methacrylic acid or salt thereof, wherein each % by weight is based on the total amount of monomers polymerized to form the single stage emulsion copolymer, wherein all the copolymers in the dispersion derived from an alkyl ester of acrylic acid or methacrylic acid have a glass transition temperature (Tg) of from 0° C. to 45° C. | ||
| 地址 | Ludwigshafen DE | ||