Process for low temperature heat sealing of polyethylene
US5536542A · kind A · utility
10Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1995 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Jul 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process of producing a heat sealed extrusion coated polyethylene article is disclosed. This process entails heat sealing, at a temperature below 95.degree. C. two opposing extrusion coated polyethylene laminate surfaces thereby welding the surfaces to effect a heat seal. The polyethylene has a narrow molecular weight distribution, a low melt index, a low swell ratio, and a polydispersity index below 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.