Process for improving the friction rate of soft/compliant polyurethanes
US6221108A · kind A · utility
16Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | May 1, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L31/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for improving the start up and steady rate friction of soft/compliant polyurethane bearings uses a pre-treatment with Ringers solution. The process includes treating the polyurethane in a heated bath of the solution for 96 hours at a temperature of between 30.degree. C. and 37.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.