Water-soluble polyester imide resin wire coating process
US4206261A · kind A · utility
14Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1979 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | May 16, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Water soluble polyester-imide prepolymers are prepared (1) having 5 to 60%, preferably at least 35%, of imide moieties, (2) an excess hydroxyl content in excess of 60% and preferably more than 100%, and (3) a number average molecular weight of 600-1300. To water solubilize the prepolymers formed, there are added amines, preferably tertiary amines. The products are useful as wire enamels. To enhance the thermoplastic flow of the enamel, there are added organic titanates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.