Insulating coating composition, solderable insulated wires, production process of the insulated wires and flyback transformers using the insulated wires
US5254659A · kind A · utility
4Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Mar 27, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to insulated wires having good heat resistance and solderability. In particular, wires coated with a polyimide resin or an imide-modified polyurethane resin are provided. They can each be produced by coating a conductor with an insulating coating composition which contains a polyamic acid represented by the following formula: ##STR1## wherein R.sup.1 means a particular tetravalent organic group, R.sup.2 denotes a specific divalent organic group, X is an alkylene or alkylenephenylene group, and n stands for a positive integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.