Polyesterimide
US4362861A · kind A · utility
19Cited by
28References
77Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1981 |
| Grant date | Dec 7, 1982 |
| Priority date | — |
| Expiry date | Oct 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low molecular weight polyester-imide resin is prepared wherein there is employed as the dibasic acid either 100% of the diimide dicarboxylic prepared by reacting two moles of trimellitic anhydride with one mole of methylene dianiline (the diimide is abbreviated DID) or oxydianiline or the dibasic acid can also contain a small percent of another aromatic acid. The product is used to produce coated wires having outstanding heat shock. The product also is useful to provide a top coat to wire coated with a polyester or with another polyester-imide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.