Chloroprene/unsaturated nitrile copolymer, chloroprene/unsaturated nitrile copolymer composition and vulcanized molded article
US11993671B2 · kind B2 · utility
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Key dates
| Filing date | Nov 6, 2019 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Apr 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2011/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A chloroprene-unsaturated nitrile copolymer having 3 to 20% by mass of a structural unit derived from an unsaturated nitrile monomer, in which the chloroprene-unsaturated nitrile copolymer has a peak at 5.80 to 6.00 ppm in a 1H-NMR spectrum as measured in a deuterochloroform solvent, and a ratio (A/B) of a peak area (A) at 5.80 to 6.00 ppm and a peak area (B) at 4.05 to 6.20 ppm is 0.6/100 to 1.1/100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.