Non-cyclic polyanhydride and epoxy, polyol or polyamine resin
US5428082A · kind A · utility
12Cited by
34References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Feb 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions of coreactant resins, such as an epoxy resin, and polyanhydrides that contain non-cyclic anhydride moieties are cured to provide coatings that have good exterior durability. Preferred high molecular weight polyanhydrides contain a central polymer moiety that has no more than about 25 weight percent repeating units derived from unsaturated aliphatic hydrocarbon monomers. In other preferred polyanhydrides, the anhydride moleties are linked to a central moiety by an ester moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.