Polyoxazoline modified unsaturated polyesteramides
US4485220A · kind A · utility
7Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Dec 23, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified unsaturated polyester (polyesteramide) is the reaction product of a diacid or anhydride (such as maleic anhydride), a polyahl (such as an aliphatic glycol), and an effective amount of a poly[(alkionylimino)alkylene] (such as poly[(propionylimino)ethylene], otherwise known as poly(2-ethyl-2-oxazoline)) wherein at least one of the diacid or anhydride, and the polyahl, have addition polymerizable unsaturation. The modified polyesters of the invention have improved physical properties compared to similar polyesters prepared without the poly[(alkionylimino)alkylene].
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.