Formulation for extrudable vinylidene chloride copolymers having high barrier properties
US5002989A · kind A · utility
5Cited by
5References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Sep 1, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a formulated barrier composition containing tetrasodium pyrophosphate or magnesium hydroxide, high density polyethylene, epoxidzed vegetable oil, oxidized polyolefin and a paraffin or polyolefin wax. The composition has a substantially lower oxygen permeability than existing compositions and is at least equally extrudable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.