Poly(vinylbiphenyl) and poly(vinylcyclohexylstyrene) polymers and articles therefrom
US10472437B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Nov 9, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is an article comprising polymers and copolymers selected from the group consisting of poly(vinylbiphenyl), poly(vinylcyclohexylstyrene), substituted versions thereof, and blends thereof, the polymer or copolymer having a weight average molecular weight (Mw) of at least 100 kg/mole and a glass transition temperature (Tg) of at least 100° C. The polymers are desirably processed in the melted state at a temperature of at least 150° C. to impart orientation and extensional strain hardening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.