公开(公告)号：EP2628770A4

公开(公告)日：2013-11-20

申请号：EP11832540

申请日：2011-10-12

申请人： MOMENTIVE PERFORMANCE MAT JP

发明人： TAKANASHI MASANORI

IPC分类号： C08L83/04 ,  C09J183/04 ,  H01L23/29 ,  H01L23/31

CPC分类号： C08L83/04 ,  B05D3/0254 ,  C08G77/12 ,  C08G77/20 ,  C08G77/70 ,  C08K5/56 ,  C08L83/00 ,  C08L2203/206 ,  C08L2205/025 ,  C08L2314/08 ,  C09D183/04 ,  C09J183/04 ,  H01L23/295 ,  H01L23/296 ,  H01L2924/0002 ,  H01L2924/00

摘要： This is to provide a curable polyorganosiloxane composition which gives a cured product excellent in cold resistance. This relates to a curable polyorganosiloxane composition which comprises (A) an alkenyl group-containing polyorganosiloxane comprising (A1) a linear polyorganosiloxane represented by the formula (I) (wherein Rs independently represent R 1 or R 2 , and among Rs, at least two of which are R 1 s, R 1 s independently represent a C 2 -C 6 alkenyl group, R 2 s independently represent a C 1 -C 6 alkyl group, n is a number which makes a viscosity at 23°C 10 to 10,000 cP), and (A2) a branched polyorganosiloxane comprising a SiO 4/2 unit and a R' 3 SiO 1/2 unit, and further optionally a R' 2 SiO unit and/or a R'SiO 3/2 unit (wherein R's each independently represent an unsubstituted or substituted, monovalent aliphatic group or alicyclic group), at least three R's are alkenyl groups per one molecule, a weight ratio of (A2) based on (A1) is 1 to 5, a weight ratio of the SiO 4/2 unit and the optionally existing R'SiO 3/2 unit based on the total weight of (A1) and (A2) is 20 to 60% by weight; (B) a polyorganohydrogensiloxane having hydrogen atoms bonded to a silicon atom in a number of exceeding 2 in the molecule; and (C) a platinum group metal compound.

摘要翻译： 这是为了提供可得到耐寒性优异的固化物的固化性聚有机硅氧烷组合物。 （A）含链烯基的聚有机硅氧烷，其包含（A1）由式（I）表示的直链聚有机硅氧烷（其中R独立地表示R 1或R 2，并且在R中至少两个 其中R 1，R 1独立地表示C 2 -C 6烯基，R 2独立地表示C 1 -C 6烷基，n是使在23℃下的粘度为10至10,000 （A2）包含SiO 4/2单元和R'3 SiO 1/2单元，并且进一步任选地包含R'2 SiO单元和/或R'SiO 3/2单元的支化聚有机硅氧烷（其中 R各自独立地表示未取代或取代的一价脂肪族基或脂环基），每1分子中至少3个R为链烯基，（A2）相对于（A1）的重量比为1〜5， （A1）和（A2）总重量的SiO 4/2单元和任选存在的R'SiO 3/2单元为20-60重量％; （B）在分子中具有超过2个的与硅原子键合的氢原子的聚有机氢硅氧烷; 和（C）铂族金属化合物。