Anionic polymerization of alpha-methylstyrene/styrene alternating copolymer
US11332560B2 · kind B2 · utility
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4References
10Claims
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Key dates
| Filing date | May 13, 2020 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Aug 1, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a copolymer of styrene and α-methylstyrene comprising an alternating sequence of styrene and α-methylstyrene residues, and a method to make the copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.