.alpha.-olefin-cycloolefin copolymers and process for their production
US6191243A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 15, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Sep 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
.alpha.-olefin-cycloolefin copolymers which (1) consist essentially of 0-31% by mole of an .alpha.-olefin component represented by the following formula (A) ##STR1## wherein R.sup.1 is a hydrogen atom or a saturated aliphatic hydrocarbon group of 1-16 carbon atoms, and 61-100% by mole of a cycloolefin component represented by the following formula (B) ##STR2## wherein R.sup.2 is a hydrogen atom or a saturated aliphatic hydrocarbon group of 1-16 carbon atoms, and (2) have a reduced viscosity .eta..sub.sp /c which is in the range of 0.1-10 dl/g as measured in a 0.5 g/dl toluene solution at 30.degree. C., hydrogenated copolymers thereof and a process for their production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.