Polypropylene resin composition and film made thereof
US8022148B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Jul 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polypropylene resin composition that has a melt flow rate of 1.5 (g/10 minutes) or more and is obtainable by melt-kneading 94 to 98 parts by weight of (A) a propylene copolymer that comprises a polymer portion being obtainable by polymerizing monomers containing propylene as the major component and having an intrinsic viscosity of 2.0 (dL/g) or more and a copolymer portion being obtainable by copolymerizing propylene and ethylene, 2 to 6 parts by weight of (B) an ethylene polymer having a density of 0.920 g/cm3 or more, and (C) an organic peroxide, provided that the total weight of the propylene copolymer (A) and the ethylene polymer (B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.