Polyethylenes with enhanced heat seal properties
US6174612A · kind A · utility
0Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved extrusion coating is described comprising at least two polyethylene homopolymers, one component being a low melt index medium density polyethylene homopolymer, and another component being a high melt index low density polyethylene homopolymer. Superior heat seal strengths are achieved with this blend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.