Heat sealing of semicrystalline quasi-amorphous polymers
US5032209A · kind A · utility
24Cited by
16References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/039
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Semicrystalline polymers can have predetermined amounts of their surfaces rendered quasi-amorphous by irradiation. Polymer surfaces which are so modified can display enhanced heat sealability to accept bonding to other materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.