Composition based on propylene polymers for expanded granules, process for obtaining it and its use
US6040348A · kind A · utility
14Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/142
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Composition for expanded granules, which comprises, per 100 parts by weight, PA1 from 60 to 90 parts by weight of a propylene homopolymer (A) having a melt flow index (MFI) from 0.1 to 20 g/10 min and PA1 from 40 to 10 parts by weight of a propylene random copolymer (B) containing from 3 to 20 mol % of ethylene and/or of an .alpha.-olefin having from 4 to 6 carbon atoms, the MFI of which ranges from 25 to 3000 g/10 min. Process for obtaining this composition and use of this composition for the manufacture of expanded granules and cellular articles obtained by molding these granules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.