Polyester film comprising amorphous polyester
US10439086B2 · kind B2 · utility
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12References
42Claims
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Key dates
| Filing date | Jul 8, 2015 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A photovoltaic cell comprising a transparent front-plane, an opaque back-plane and an encapsulant resin wherein said back-plane comprises a polyester film comprising a base layer (B) comprising a crystallizable polyester and a heat-sealable layer (A) comprising an amorphous copolyester wherein: (i) said amorphous copolyester is derived from an aliphatic diol and a cycloaliphatic diol and at least one aromatic dicarboxylic acid (ii) said polyester film is disposed in the photovoltaic cell such that layer (A) is in contact with the encapsulant resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.