公开(公告)号：US5468828A

公开(公告)日：1995-11-21

申请号：US328786

申请日：1994-10-28

Applicant: Simon R. Hurford ,  Bhukandas Parbhoo

Inventor： Simon R. Hurford ,  Bhukandas Parbhoo

IPC: C08L83/06 ,  C08G77/00 ,  C08G77/04 ,  C08G77/38 ,  C08L83/02 ,  C09D183/04 ,  C09J183/00 ,  C09J183/06 ,  C08G77/06

CPC classification number: C08G77/38 ,  C08G77/04 ,  C09D183/04

Abstract: A release modifier for silicone release compositions comprising a MQ resin consisting essentially of units of the formulaeSiO.sub.2 (Q) and R.sub.3 SiO.sub.1/2 (M)wherein R denotes a monovalent hydrocarbon group having up to 3 carbon atoms, a hydrogen atom, an alkenyl group of the formula --R'CH.dbd.CH.sub.2 or an oxyalkenyl group of the formula --OR'CH.dbd.CH.sub.2, wherein R' denotes an alkylene group of from 4 to 12 carbon atoms, provided there is at least one group --R'CH.dbd.CH.sub.2 or one group --OR'CH.dbd.CH.sub.2 present per MQ molecule and that no more than 50% of all M units have such groups. Also claimed is a solventless release composition based on siloxanes having SiH groups and a catalyst in addition to the release modifier.

Abstract translation: 一种用于硅氧烷剥离组合物的释放改性剂，其包含基本上由式SiO 2（Q）和R 3 SiO 1/2的单元组成的MQ树脂（M），其中R表示具有至多3个碳原子的一价烃基，氢原子，烯基 式-R'CH = CH 2或式-OR'CH = CH 2的氧连烯基，其中R'表示4至12个碳原子的亚烷基，条件是存在至少一个基团-R'CH = CH2或每个MQ分子存在一个基团-OR'CH = CH 2，并且不超过50％的所有M个单元具有这样的基团。 还要求保护的是基于具有SiH基团的硅氧烷和除了释放改性剂之外的催化剂的无溶剂脱模组合物。

公开(公告)号：US5468816A

公开(公告)日：1995-11-21

申请号：US330952

申请日：1994-10-28

Applicant: Simon R. Hurford ,  Bhukandas Parbhoo

Inventor： Simon R. Hurford ,  Bhukandas Parbhoo

IPC: C08K5/01 ,  C08L83/05 ,  C08L83/07 ,  C09D183/04 ,  C09J7/02 ,  C08F283/12

CPC classification number: C08K5/01 ,  C09D183/04

Abstract: A release modifier which comprises (i) a MQ resin consisting essentially of units of the formulae SiO.sub.2 and R.sub.3 SiO.sub.1/2 wherein R denotes a monovalent hydrocarbon group having up to 3 carbon atoms, a hydrogen atom, a c.sub.2-5 alkenyl group of the formula --R'CH.dbd.CH.sub.2, provided there is at least one group --R'CH.dbd.CH.sub.2 present per MQ molecule and (ii) a .alpha.,.omega.-diolefin having the general formula CH.sub.2 .dbd.CH--(CH.sub.2).sub.n --CH.dbd.CH.sub.2, wherein n denotes an integer with a value of from 4 to 18 gives improved release force over prior art controlled release additives. Also claimed is a solventless release composition based on siloxanes having SiH groups and a catalyst in addition to the release modifier.

Abstract translation: 一种释放改性剂，其包含（i）基本上由式SiO 2和R 3 SiO 1/2的单元组成的MQ树脂，其中R表示具有至多3个碳原子的一价烃基，氢原子，式 -R'CH = CH 2，条件是存在每MQ分子存在至少一个基团-R'CH = CH 2和（ii）具有通式CH 2 = CH-（CH 2）n -CH = CH 2的α，ω-二烯烃 ，其中n表示4至18的整数相对于现有技术的控释添加剂具有改进的释放力。 还要求保护的是基于具有SiH基团的硅氧烷和除了释放改性剂之外的催化剂的无溶剂脱模组合物。