Films of polypropylene blends and polyethylene blends and articles made therewith
US5071686A · kind A · utility
135Cited by
38References
34Claims
0Family size
Inventors
Key dates
| Filing date | Nov 29, 1985 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Nov 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel films are disclosed which contain blends of ethylene-based copolymers or other elastomers with polypropylene and polyethylene. Typical films have two-five layers wherein at least one layer is a blend of high density polyethylene with an ethylene-based copolymer or another elastomer and has additional layers of polypropylene blended with an ethylene-based copolymer or another elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.