Siloxane polymers and copolymers as barrier, coatings and method of producing barrier coating properties therewith
US5096738A · kind A · utility
Inventor
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jul 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of imubing polymer films as of polyethylene and polypropylene with gas, aroma, fragrance, flavor, grease and oil impermable surface characteristics involving coating the film with appropriate silane compounds and cross-linking the same while providing physical adsorption adherence to the film, and in sufficient coating micron thickness to produce gas and related barrier characteristics; with chemical grafting, including by eb techniques, further providing improved bonding. Preferred barrier-coated polymer films with reduced haze and clarity are formed by such method. The method is also useful to increase the barrier properties of organo-polymer films that already possess initial barrier characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.