Radiation-sterilized shaped articles of olefin polymers
US3940325A · kind A · utility
68Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1973 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | Aug 24, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Radiation-sterilized shaped articles of olefin polymers containing 0.01 - 0.5% by weight based on the weight of the olefin polymers, of octadecyl 3,5-di-t-butyl-4-hydroxyhydrocinnamate or/and tetrakis [(m methane. The radiation-sterilized shaped articles are colorless and still have practically acceptable physical properties (melt flow rate and percentage occurrence of cracking), in spite of the fact that they have been irradiated with high energy radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.