发明名称 |
Optical assembly and method of forming an optical assembly |
摘要 |
Optical assemblies comprising an optical device and a composition comprising a resin-linear organosiloxane block copolymer are disclosed. In some embodiments, the organosiloxane block copolymers has a weight average molecular weight of at least 20,000 g/mole and includes 40 to 90 mole percent disiloxy units of the formula [R12SiO2/2] arranged in linear blocks each having an average of from 10 to 400 disiloxy units [R12SiO2/2] per linear block, 10 to 60 mole percent trisiloxy units of the formula [R2—SiO3/2] arranged in non-linear blocks each having a weight average molecular weight of at least 500 g/mol, and 0.5 to 25 mole percent silanol groups. R1 is independently a C1 to C30 hydrocarbyl and R2 is independently a C1 to C20 hydrocarbyl. At least 30% of the non-linear blocks are crosslinked with another non-linear block and aggregated in nano-domains. Each linear block is linked to at least one non-linear block. |
申请公布号 |
US9000472(B2) |
申请公布日期 |
2015.04.07 |
申请号 |
US201214369981 |
申请日期 |
2012.12.20 |
申请人 |
Dow Corning Corporation;Dow Corning Toray Co., Ltd. |
发明人 |
Amako Masaaki;Swier Steven |
分类号 |
H01L33/00;C08G77/44;C08G77/48;C09D183/10;H01L33/50;H01L33/56 |
主分类号 |
H01L33/00 |
代理机构 |
Schwegman Lundberg & Woessner, P.A. |
代理人 |
Schwegman Lundberg & Woessner, P.A. |
主权项 |
1. A method of forming an optical assembly comprising an optical device and a composition comprising a resin-linear organosiloxane block copolymer, said method comprising the step of combining the optical device and the composition to form the optical assembly, wherein the resin-linear organosiloxane block copolymer has a weight average molecular weight of at least 20,000 g/mole and comprises:
40 to 90 mole percent disiloxy units of the formula [R12SiO2/2] arranged in linear blocks each having an average of from 10 to 400 disiloxy units [R12SiO2/2] per linear block; 10 to 60 mole percent trisiloxy units of the formula [R2SiO3/2] arranged in non-linear blocks each having a weight average molecular weight of at least 500/mol; and 0.5 to 25 mole percent silanol groups;
wherein R1 is independently a C1 to C30 hydrocarbyl and R2 is independently a C1 to C20 hydrocarbyl,wherein at least 30 weight percent of the non-linear blocks are crosslinked with another non-linear block and aggregated in nano-domains andwherein each linear block is linked to at least one non-linear block. |
地址 |
Midland MI US |