Low level radiation treatment for improving polymer properties
US7514480B2 · kind B2 · utility
6Cited by
19References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Ionized irradiation can be used to improve the properties of fluoropolymers. In particular, elasticity, strain hardening, and melt strength of a fluoropolymer can be increased by LIP to an order of magnitude by exposure to controlled amounts of radiation; while polymer foams may be thermoformed and crosslinked by irradiation to provide a solvent resistance polymer foams having wide range of densities with good mechanical integrity at elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.