Stretchable polymer thick film carbon black composition for wearable heaters
US11220587B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | May 11, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Jul 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/036
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer thick film carbon black composition comprising 6-13 wt % conductive carbon black powder; and 87-94 wt % organic medium comprising thermoplastic polyurethane resin dissolved in an organic solvent may be used to form the resistive element of heaters in applications where significant stretching is required, particularly on substrates that can be highly elongated and, in particular, that can be used in wearable garment applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.