Process for manufacture of surface-modified oriented polymeric film
US4810434A · kind A · utility
10Cited by
24References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2077/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for surface modification of oriented polymeric film is disclosed. The process, applicable to polyesters, polyolefins, and polyamides, involves subjecting the film surface to at least one short pulse of intense electromagnetic radiation. Such surface treatment enhances the heat seal adhesion of the oriented polymeric film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.