Weatherable copolymers
US5916997A · kind A · utility
36Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1998 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/19
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are weatherable polyester soft block copolymer compositions comprising copolymers of resorcinol or alternatively phenol, aromatic dicarboxylic acid, and a aliphatic dicarboxylic acid based structural units. These polyester soft block copolymers comprise a substantial proportion of direct linkages between the resorcinol or alternatively the phenol, and the aromatic dicarboxylic acid based structural units, the balance of the linkages being between resorcinol and the aliphatic dicarboxylic acid based structural units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.