Barrier material and method for making the same
US8734959B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31975
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a biopolymer based barrier coating composition wherein said biopolymer based barrier coating composition comprises a plasticizer, a nano-sized clay and a biopolymer comprising a native starch and/or a de-graded starch and/or a chemically modified starch. The present invention also relates to a method for preparing the biopolymer based barrier coating composition as well as to a method for coating a cellulose based substrate with the biopolymer based barrier coating composition. Finally, the present invention relates to a cellulose based substrate coated with said biopolymer based barrier coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.