发明名称 |
Sealant with siloxaphobic surface, composition, and method to prepare same |
摘要 |
A sealant made from a room temperature curing polydimethylsiloxane composition has a siloxaphobic surface layer at the air-sealant interface where this layer is a fluorocarbon compound and a drying oil oxidation product. Elastomeric compositions made from polydimethylsiloxanes having both low reactivity endgroups and high reactivity endgroups and a siloxaphobic agent of fluorocarbon alcohol or a reaction product of the fluorocarbon alcohol and a hydrolyzable silane, are particularly useful for sealing buildings because they can withstand the expansions and contractions. One siloxaphobic agent is the reaction product between a fluorocarbon alcohol and a methyltri(methylethylketoximo)silane and the formula of one of the reaction product compounds is <IMAGE> wherein x has an average value of at least 6.
|
申请公布号 |
US5357025(A) |
申请公布日期 |
1994.10.18 |
申请号 |
US19930136507 |
申请日期 |
1993.10.14 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
ALTES, MICHAEL G.;BERGMAN, LOUISE C.;GVOZDIC, NEDELJKO V.;KLOSOWSKI, JEROME M.;O'NEIL, VIRGINIA K. |
分类号 |
C08K5/05;C08K5/54;C08K5/5419;C08L83/04;C09K3/10;(IPC1-7):C08G77/24 |
主分类号 |
C08K5/05 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|