Polyolefin composition for manufacture of film having cling properties
US4337188A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1980 |
| Grant date | Jun 29, 1982 |
| Priority date | — |
| Expiry date | Oct 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/19
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition capable of being used for the manufacture of polyolefin film having so-called "cling" properties is disclosed. The composition consists essentially of PA1 (a) an intimate mixture of 75-98 weight percent of a first component and 2-25 weight percent of a second component, and PA1 (b) at least 200 ppm, based on the weight of (a), of an agent selected from the class consisting of PA2 (i) an organic compound having at least one polar group and at least one group selected from the class consisting of alkylene and alkylene interrupted by oxygen, said alkylene having at least eight carbon atoms and said compound being a liquid or a waxy solid; PA2 (ii) mineral oil; PA2 (iii) a liquid polyolefin; and PA2 (iv) an organic phosphate ester that is a liquid or waxy solid; and mixtures of such agents. A preferred agent is N,N-bis(2-hydroxyethyl) alkylamine where the alkyl group is C.sub.12 -C.sub.18 alkyl group. The first component is a blend of 10-100 percent of at least one homopolymer of ethylene having a density of 0.915-0.930 g/cm.sup.3 and a melt index of 0.2-10 with 0-90 percent of at least one ethylene/.alpha.-olefin copolymer having a density of 0.915-0.930 g/cm.sup.3 and a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.