Melt processable aliphatic polycarbonate terpolymers
US4851507A · kind A · utility
13Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The addition of a small amount of a second epoxide to the copolymerization of ethylene oxide or propylene oxide with carbon dioxide can give a melt processable polyalkylene carbonate terpolymer which can be processed without extensive thermal decomposition. This invention has particular utility in thermoplastic applications such as injection molding, blow molding, and film manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.