Polyamide-imide resin based insulating varnish and insulated wire covered with same
US9145505B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Aug 27, 2010 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | May 16, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided an insulated wire including: a conductor wire; and a polyamide-imide insulation coating formed around the conductor wire, the polyamide-imide insulation coating being made from a polyamide-imide resin based insulating varnish, the varnish being synthesized by reaction of an isocyanate constituent and an acid constituent in a solvent, the isocyanate constituent including 5 to 50 mol % of 2,4′-diphenylmethane-diisocyanate having a flexible molecular structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.