β-pinene polymer and process for producing the same
US8093344B2 · kind B2 · utility
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5References
16Claims
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Key dates
| Filing date | Apr 1, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F32/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To provide a β-pinene polymer excellent in heat resistance while having thermoplasticity, and further also having excellent strength, without impairing the inherent characteristics of small specific gravity and excellent transparency. A desired β-pinene polymer having a weight average molecular weight of 90,000 to 1,000,000 and a glass transition temperature of 80° C. or more was obtained by polymerizing β-pinene in the presence of a bifunctional vinyl compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.