Material comprising a polyamide, a polymer having polyamide and polyether blocks and a functionalized polyolefin, and film and object obtained therefrom
US5959042A · kind A · utility
19Cited by
10References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Nov 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31725
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A material is provided comprising: (a) a polyamide; (b) a polymer having PA blocks and polyether PEG blocks; (c) optionally a polyolefin; (d) a functionalized polyolefin; the various constituents being present in amounts by weight, a, b, c and d such that: a>0; b>0; c+d>0; a+b+c+d=100; with a/b>0.2; (a+b)/(c+d)>1; and b/(a+b+c+d)<0.5. A film which is non-porous but breathable, i.e. porous to water vapor but not to water, and an antistatic object obtained from this material are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.