Silicon-containing copolymer and method of producing same
US5596062A · kind A · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1995 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Aug 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A silicon-containing copolymer is disclosed which has a number average molecular weight of 500-100,000 and which contains the following structural units (I)-(III): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each represent an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkylamino group or an alkylsilyl group and and R.sup.3 and R.sup.8 each represent a divalent aromatic group. The copolymer is produced by reacting an organodihalosilane, a disilyl compound, a diamine and ammonia with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.