Anti-block additives for olefin polymers
US4415691A · kind A · utility
17Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1982 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Mar 18, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Extrusion-cast films of high molecular weight, linear, low density ethylene copolymers which inherently have high block and high cling characteristics are compounded with a minor amount of a low molecular weight organic, such as a polyglycol, before being extrusion-cast as a thin film, the low molecular weight organic serving to substantially reduce the block, but retaining high cling characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.