Film made from denatured clay
US8206814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2139
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a novel technology and a novel material having excellent pliability, gas barrier properties and water resistance, for the technical fields of packaging materials, sealing materials, electric insulating materials and the like, the present invention relates to a film of a material having a denatured clay as a main constituent thereof, wherein (1) the film comprises a denatured clay and an additive, (2) the weight ratio of the denatured clay is not less than 70% relative to total solids, (3) the film has gas barrier properties and water-vapor barrier properties, (4) the film has heat resistance, (5) the film has water resistance, (6) the film has sufficient mechanical strength to be used as a self-supporting film, and (7) the film can be formed on the surface of metals, plastics, rubber, paper and the like, and the present invention can provide a material comprising the denatured clay film in which denatured clay particles are highly oriented and which has excellent heat resistance, excellent pliability, excellent gas barrier properties, excellent water-vapor barrier properties, and high water resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.