High flow rate polyolefin extrusion coating compositions
US4378451A · kind A · utility
49Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1981 |
| Grant date | Mar 29, 1983 |
| Priority date | — |
| Expiry date | Sep 14, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D123/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to novel blends containing degraded crystalline polypropylene or propylene containing copolymer useful as extrusion coating compositions which provide coatings having good coatability and good heat sealability. These coated substrates then can be used in fabricating bags and other packaging applications. Particularly, these coatings are a blend of a degraded crystalline polypropylene, or propylene containing copolymer, and low density polyethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.