Coextrusion binder based on a mixture of cografted polyolefins
US6475633B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a mixture which is useful as a coextrusion binder, comprising:at least (A) one polyethylene or one ethylene copolymer,at least (B) chosen from (B1) polypropylene or a propylene copolymer, (B2) poly(1-butene) homo- or copolymer, and (B3) polystyrene homo- or copolymer,the mixture of (A) and (B) being grafted with a functional monomer, this grafted mixture itself optionally being diluted in at least one polyolefin (C) or in at least one polymer (D) of elastomeric nature or in a mixture of (C) and (D). The invention also relates to polyolefin/binder/polyamide, EVOH, polyester or metal structures. The invention is useful for making packaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.