Method of imbuing organic polymer films with improved gas impermeability characteristics and improved barrier coatings therefor
US5215822A · kind A · utility
20Cited by
1References
32Claims
0Family size
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Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention embraces a method of controlling the impermeability of an organic polymer film to gases such as oxygen, aroma, flavor and fragrance and the like to produce gas impermeable organic polymer films by coating with a mixture of a siloxane monomer with carboxylic acid in an alcohol solvent and evaporating the solvent to complete the formation of Si--O--Si bonds; and then polymerizing and grafting the coating, preferably by electron beam radiation, to the polymer film. Improved coated polymer films and formulation products therefor are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.