Hydrogenated norbornene-based ring-opening polymerization polymer, resin composition, and molded object
US8647730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2011 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of main-chain carbon-carbon double bonds of a ring-open polymer obtained by ring-opening polymerization of 2-norbornene. The hydrogenated norbornene ring-open polymer has a weight average molecular weight determined by gel permeation chromatography (GPC) of 50,000 to 200,000, a molecular weight distribution of 1.5 to 10.0, and a melting point of 110 to 145° C. A hydrogenated norbornene ring-open polymer obtained by hydrogenating 80% or more of carbon-carbon double bonds of a ring-open polymer obtained by ring-opening copolymerization of 2-norbornene and a substituent-containing norbornene monomer, wherein the proportion of a repeating unit (A) derived from the 2-norbornene with respect to all repeating units is 90 to 99 wt % and the proportion of a repeating unit (B) derived from the substituent-containing norbornene monomer with respect to all repeating units is 1 to 10 wt %. A resin composition and a molding material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.