Polyolefin extrusion coating compositions having good coatability and good adhesion to the substrate
US4526919A · kind A · utility
16Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1984 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Jun 27, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to novel blends containing crystalline polypropylene or propylene containing copolymer, low density polyethylene, hydrocarbon tackifying resin, and a fatty acid amide 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. These extrusion coating compositions are a blend of a crystalline polypropylene, or propylene containing copolymer, low density polyethylene, hydrocarbon tackifying resin, and a fatty acid amide containing 16 to 40 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.