Coating material composition with gas-barrier property, process for producing the same, and gas-barrier packaging container obtained therefrom
US7892615B2 · kind B2 · utility
2Cited by
25References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2003 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a coating material composition with a gas-barrier property which comprises, as essential components, an ethylene-vinyl alcohol copolymer (A) obtained by saponifying an ethylene-vinyl acetate copolymer, an inorganic layered compound (B) and a solvent, wherein the total amount of (A) and (B) is 1 to 30% by mass and the mass ratio (A)/(B) is (30/70) to (50/50). The coating material provides gas-barrier properties to packaging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.