Bi-axially stretched breathable film, process for making the same and use thereof
US8592028B2 · kind B2 · utility
1Cited by
19References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2006 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to A bi-axially stretched breathable film comprising a polymeric mixture, said polymeric mixture comprising based on the total weight of the polymeric mixture/—at least 50% of at least one polyether block copolymer; and —from 0.5 to less than 50% of at least one polyester. The invention also relates to a method to manufacture said film, and uses of said film. The invention also relates to a method for producing a bi-axially stretched breathable film comprising at least one polyether block copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.