Vinyl chloride polymer film and method for producing same
US8808846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 13, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a film made of a vinyl chloride polymer mixture that, in addition to the conventional additives, contains 0.1 to less than 5 wt % of a semicrystalline or amorphous polyester, has a good thermal formability, and is suitable for the packaging of bulk goods. The film is produced by extruding or by calendering the plastified vinyl chloride polymer mixture, optionally followed by inline/offline stretching and, optionally, thermally formed immediately thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.