Liquid silicone composition for transfer- or injection-molding optical parts, optical parts made therefrom, and a method thereof
US11091636B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jun 19, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Sep 16, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a liquid silicone composition for transfer- or injection-molding optical parts. The liquid silicone composition comprises: (A) a linear organopolysiloxane having in a molecule at least two silicon-bonded C2-10 alkenyl groups and at least one silicon-bonded C6-20 aryl group; (B) an organopolysiloxane resin represented by a specific average unit formula; (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; and (E) a hydrosilylation reaction inhibitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.