Patent · US Expired

Method for molding a cross-linked preform

US6627141B2 · kind B2 · utility

35Cited by
60References
33Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 2001
Grant dateSep 30, 2003
Priority date
Expiry dateMar 5, 2022

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29L2031/7532
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method for forming a plastic prosthesis bearing, net-shape bearing or near net-shape bearing is provided. The method includes providing a cross-linked plastic resin preform in a volume sufficient to accommodate the bearing and molding the cross-linked preform. The molding is accomplished by applying heat and pressure to form the preform into a desired solid plastic shape. The heating and pressure is sufficient to melt the plastic resin so that the plastic resin flows under pressure and quench remaining free-radicals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.