Polymeric film comprising a coating layer of vermiculite platelets
US5244729A · kind A · utility
36Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Jan 31, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polymeric film comprising a substrate layer of polymeric material having on at least one surface thereof a coating layer comprising vermiculite platelets wherein 50 to 100% by number of the platelets have a particle size in the range 0.5 to 5.0 .mu.m. The film exhibits oxygen barrier properties and is suitable for use as a packaging film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.