Optical solid state prepolymer and molding composition
US9773958B2 · kind B2 · utility
0Cited by
7References
11Claims
0Family size
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Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2483/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An optical solid state prepolymer is provided, which includes a product formed by reacting 100 parts by weight of (a) epoxy resin and 0.1 to 30 parts by weight of (b) oligomeric silsesquioxane. The (a) epoxy resin includes (a1) linear siloxane epoxy resin and (a2) cyclic siloxane epoxy resin with a weight ratio of 1:1 to 5:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.