Process for ultra-high molecular weight, high abrasion resistance, cross-linked polyethylene
US4171338A · kind A · utility
21Cited by
12References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1977 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2301/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process is provided for preparing ultrahigh molecular weight, high abrasion resistant polyethylene compositions, wherein ultrahigh molecular weight polyethylene resin is admixed with about 0.01 to 0.1 weight percent organic peroxide and the admixture introduced at elevated temperatures into a melt shaping apparatus such as a ram extruder. The ultrahigh molecular weight polyethylene is cross-linked to still higher molecular weight compositions during melt shaping thereby resulting in a composition having superior abrasion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.