Polyester silicates
US-2015353764-A1 · Dec 10, 2015 · US
Optical assembly and method of forming an optical assembly
US9000472B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9000472-B2 |
| Application number | US-201214369981-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2012 |
| Priority date | Dec 30, 2011 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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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 [R 1 2SiO 2/2 ] arranged in linear blocks each having an average of from 10 to 400 disiloxy units [R 1 2SiO 2/2 ] per linear block, 10 to 60 mole percent trisiloxy units of the formula [R 2 —SiO 3/2 ] 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. R 1 is independently a C 1 to C 30 hydrocarbyl and R 2 is independently a C 1 to C 20 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.
First claim
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What is claimed is: 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 [R 1 2 SiO 2/2…
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Electricity · mapped topic
Electricity · mapped topic
- C09D183/10Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9000472B2 cover?
- 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 [R 1 2SiO 2/2 ] arranged in linear blocks each having an average of from …
- Who is the assignee on this patent?
- Dow Corning, Dow Corning Toray Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09D183/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).