Compositions based on vinylidene chloride copolymers stabilized against heat and their use
US5231139A · kind A · utility
1Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Feb 12, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition containing as an epoxide heat stabilizer at least one glycidyl methacrylate copolymer whose epoxy value is at least 0.4. These effective heat stabilizers do not appreciably affect the transparency and the imperviousness of vinylidene chloride copolymers. The composition in question is particularly suited for the extrusion of sheets and films intended for packaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.