Polyolefin series resinfilm, composition for preparing the same, process for preparing the composition for preparing the same, and apparatus for preparing the same
US7049361B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 11, 2002 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Nov 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L91/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density ρ1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700–6000 and a density ρ2 (g/cm3), the polyolefin and the polyolefin wax are incorporated at [A]/[B]=90/10–50/50 (ratio by weight), and the densities ρ1 and ρ2 satisfy the following conditions: 0.92≦ρ1≦0.94, 0.91≦ρ2≦0.93, −0.03≦(ρ1−ρ2)≦0.03.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.