Polymer compositions based on linear low density polyethylene and propylene copolymers
US4871813A · kind A · utility
23Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Aug 31, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer composition comprising (a) 99 to 75 weight percent of LLDPE and (b) 1 to 25 weight percent of a copolymer of propylene (CP) with 7 to 40 weight % o one or more C.sub.4 to C.sub.12 alpha-olefins and 0 to 10 weight % of ethylene. The propylene copolymer (CP) has a fusion enthalpy not more than 75 J/g. The composition is readily converted into uniform thickness film by extrusion blowing, and exhibits good hot tack strength during heat-sealing operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.