Propylene and ethylene/.alpha.-olefin copolymer combinations applicable to the manufacture of mono-oriented yarns
US4563504A · kind A · utility
33Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Jun 30, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A combination of at least one propylene polymer and at least one ethylene/.alpha.-olefin copolymer wherein the combination comprises: (a) 10 to 40 weight percent isotactic polypropylene; and (b) 60 to 90 weight percent ethylene/.alpha.-olefin copolymer, wherein said .alpha.-olefin has at least 4 carbon atoms, and wherein said copolymer has a density between 0.905 and 0.940 g/cm.sup.3 and a melt index between 0.2 and 3 dg/min. Application to the manufacture of mono-oriented yarns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.