Radiation-resistance propylene polymer composition and radiation sterilized articles therefrom
US5371124A · kind A · utility
8Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | May 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/05
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a radiation resistant propylene polymer composition comprising a propylene polymer material and generally from about 0.1 to about 5 pph, of the propylene polymer material, of a rosin material. A hindered amine is present when the concentration of the rosin material is low, i.e., below 1.0 pph. At higher concentrations of rosin material, the hindered amine is optional. Radiation sterilized articles in which at least part of the material construction thereof comprises said radiation resistant propylene polymer composition are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.