Polyolefinic compositions for the manufacture of articles for biomedical use
US6376613B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1995 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Feb 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyolefinic compositions comprising:(A) 1-99% by weight of a propylene amorphous polymer, and(B) 1-99% by weight of a copolymer selected from(BI) a copolymer of propylene with ethylene and/or alpha-olefins C4-C10, and(BII) a composition comprising:(a) 10-50% by weight of an isotactic polypropylene with ethylene and/or alpha-olefins C4-C10;(b) 0-20% by weight of a copolymer containing ethylene, insoluble in xylene, and(c) 40-80% by weight of an elastomeric copolymer of ethylene with propylene and/or alpha-olefins C4-C10, optionally with small amounts of diene.These compositions are endowed with good mechanical and optical properties and are suitable for the manufacture of articles for biomedical applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.