Flexible polybutadiene resin composition having excellent electrical properties
US4031066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1975 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Mar 4, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flexible polybutadiene resin composition having 100 parts of (a), 5 to 120 parts of (b), and 50 to 500 parts of (c), where PA1 A. is a thermosetting resin having a molecular weight of 500 to 100,000 and having the formula: EQU YCH=CX--An.sub.1 --Jn.sub.2 --Gn.sub.3 --D--E--(PBd)--E--D--Gn.sub.3 ].sub.m Jn.sub.2 --An.sub.1 --CX=CHY wherein X is hydrogen, or an alkyl radical containing up to four carbon atoms; Y is selected from the group consisting of hydrogen, phenyl, and alkoxycarbonyl; A is a carboxyl, or a carbonyl group; J is an alkylene group containing less than five carbon atoms and G is selected from the group consisting of urethane, carboimino and ureylene group; E is urethare or carboimino, and can be the same or different from G; D is selected from the group consisting of alkylene, cycloalkylene, phenylene, naphthylene, pyrene, bis(phenylene)methylene and tris(phenylene)methylidyne radical in which the radical may be substituted by a lower alkyl radical); PBd is a polybutadiene or copolybutadiene or hydrogenized polybutadiene chain having a polymerization degree of from 4 to 370 and from about 50 percent to about 100 percent of 1,2-configuration; n.sub.1, n.sub.2 and n…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.