Ethylene-&agr;-olefin copolymer and composition, and film, laminate and electrical insulating material comprising same
US6423808B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A laminate containing a polyolefin resin composition containing ethylene-&agr;-olefin copolymer having: (A) a density d of 0.86 to 0.96 g/cm3; (B) a melt flow rate MFR of 0.01 to 200 g/10 min; (C) a molecular weight distribution Mw/Mn of 1.5 to 4.5; (D) a composition distribution parameter Cb of 1.08 to 2.00; and (E) an orthodichlorobenzene-soluble content X (wt %), at 25° C. a density of d (g/cm3) and a melt flow rate MFR (g/10 min) satisfying that:(i) when the density (d) and the melt flow rate MFR satisfy relationship (I):d−0.008×log MFR≧0.93  (I) the orthodichlorobenzene-soluble content X satisfies relationship (II):X<2.0  (II)(ii) when the density d and the melt flow rate MFR satisfy relationship (III):d−0.008×log MFR<0.93  (II) the orthodichlorobenzene-soluble content X satisfies relationship (IV):X<9.8×103×(0.9300−d+0.008×log MFR)2+2.0  (IV)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.