发明名称 | Non-metal catalyzed room temperature moisture curable organopolysiloxane compositions | ||
摘要 | The present invention provides curable compositions that are free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst comprising curable polymers having reactive terminal silyl groups. In particular, a silylated carboxylic acid is an alternative to organotin or other metal catalysts. In addition, the catalyst may be used with an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst. | ||
申请公布号 | US9605113(B2) | 申请公布日期 | 2017.03.28 |
申请号 | US201414890189 | 申请日期 | 2014.05.09 |
申请人 | MOMENTIVE PERFORMANCE MATERIALS INC. | 发明人 | Patel Mihirkumar Maheshbai;Dhanabalan Anantharaman;Dinkar Sumi;Sarkar Alok |
分类号 | C08G77/44;C08G77/08;C08L43/04;C08K5/5419;C08K5/544;C08L101/10 | 主分类号 | C08G77/44 |
代理机构 | McDonald Hopkins LLC | 代理人 | Waters Joseph E.;McDonald Hopkins LLC |
主权项 | 1. A composition for forming a cured polymer composition comprising: (A) a polymer having at least a reactive silyl group; (B) a crosslinker or chain extender chosen from an alkoxysilane, an alkoxysiloxane, an oximosilane, an oximosiloxane, an enoxysilane, an enoxysiloxane, an aminosilane, a carboxysilane, a carboxysiloxane, an alkylamidosilane, an alkylamidosiloxane, an arylamidosilane, an arylamidosiloxane, an alkoxyaminosilane, an alkarylaminosiloxane, an alkoxycarbamatosilane, an alkoxycarbamatosiloxane, and combinations of two or more thereof; (C) a catalyst composition comprising a silylated carboxylic acid compound, wherein the silylated carboxylic acid is a silyl ester of a carboxylic acid comprising a silyl group bonded to a carboxylic acid compound; (D) an adhesion promoter; (E) optionally a cure accelerator; and (F) optionally a flow modifier or extender. | ||
地址 | Waterford NY US |