Method for preparing radiation resistant polypropylene articles
US4931230A · kind A · utility
35Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Jan 24, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Irradiated polypropylene articles of non-crystalline mesomorphous polypropylene and a method for preparing the articles are provided. The articles are irradiated with a sterilizing dosage of ionizing radiation. The irradiated articles such as films and blown microfiber webs are substantially undegraded after storage periods of as long as six months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.