Polyanhydride containing non-cyclic anhydride moieties
US5602274A · kind A · utility
3Cited by
33References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyanhydride having a molecular weight of no more than about 2000 is useful in a coating composition with a coreactant resin such as an epoxy resin and comprises: (a) a polyvalent organic moiety; (b) a plurality of ester linkages bonded to the polyvalent organic moiety; (c) divalent organic moieties bonded to the ester linkages; and (d) non-cyclic anhydride moleties bonded to the divalent organic moleties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.