Hydrolysis resistant polyester films
US9416225B2 · kind B2 · utility
2Cited by
37References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2010 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A biaxially oriented polyester film including polyethylene terephthalate (PET) and at least one hydrolysis stabilizer selected from a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, wherein the hydrolysis stabilizer is present in the film in the form of its reaction product with at least some of the end-groups of the polyester; a process for making the same; and use of the film as a layer in a photovoltaic cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.