Biaxially oriented hydrolysis-stable polyester film comprising epoxidized fatty acid derivatives, and process for production thereof and use thereof
US8277710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2009 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | May 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/966
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to biaxially oriented polyester films which contain 0.1-5.0% by weight (based on the weight of the film) of a hydrolysis stabilizer based on epoxidized fatty acid esters and 0.2-10% by weight (based on the weight of the film) of epoxidized fatty acid glycerides, the epoxidized fatty acid esters having a mean molecular weight of at least 425 g/mol. Such films find use in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.