Compositions having particular utility as stretch wrap cling film
US6197887A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Sep 2, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A novel composition is disclosed comprising about 85 to about 99 weight percent based on the composition of a polymeric ethylenic containing component having a density no greater than 0.94 g/cc, and about 1 to about 15 weight percent based on the composition, of a propylene polymer comprising 0 to less than about 1 weight percent based on the polymer, of olefin comonomer units and from about greater than 99 to 100 weight percent propylene, based on the polymer, the propylene polymer having a viscosity of about 1 to about 2,000 mPa.s at 190.degree. C. and a needle penetration of about 5 to about 50 dmm at 23.degree. C. Also disclosed are films produced from the composition, both blown and cast, and both monolayer and multilayer. Also disclosed are processes for stretch wrapping and forming blown film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.