Ternary polymer blend, the film containing it, and the easy-to-open package made therewith
US6476137B1 · kind B1 · utility
26Cited by
30References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Dec 26, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31909
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Object of the present invention is an extrudable blend comprising (i) a copolymer of ethylene and acrylic acid or methacrylic acid (ii) a modified EVA copolymer and (iii) a polybutylene. Included are the films comprising said blend in the sealant layer or in a layer directly adhered to the sealant layer, and the easy-to-open packages obtained therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.