Photocurable compositions of poly(ethynylphenyl)acetylene, its copolymer and composition thereof
US4767797A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1986 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Aug 25, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A linear polymer having a recurring unit represented by the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently is a hydrogen atom, a C.sub.1-10 alkyl group, a C.sub.6-10 cycloalkyl group, an aryl group, or a halogen atom and the ethynyl group is in either meta position or para position to the main polymer chain; and a weight-average molecular weight of 1,000 to 1,000,000. A resin composition consisting essentially of (i) a polymer having a recurring unit represented by the formula (I) or a polymer having a recurring unit represented by the formula (I) and a recurring unit represented by the formula (II): ##STR2## wherein X and Y each independently is a C.sub.6-20 aryl group, a C.sub.1-10 alkyl group, a C.sub.6-10 cycloalkyl group, a silyl group having a C.sub.1-10 alkyl group or a C.sub.6-10 aryl group, a hydrogen atom or a halogen atom, and the ethynyl group of the unit (I) is in either meta position or para position to the main polymer chain; and the weight ratio of the unit (I) to the unit (II) ranges from 1/99 to 99.5/0.5 and (ii) at least one agent selected from the group consisting of (a) an improvement agent for casting and molding propert…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.