CROSSLINKED POLYMERS AND METHODS OF MAKING THE SAM

专利名称：CROSSLINKED POLYMERS AND METHODS

OF MAKING THE SAME

发明人：Anuj Bellare申请号：US12681282申请日：20080820

公开号：US20100292374A1公开日：20101118

专利附图：

摘要：Methods are described that include elongating, e.g., by stretching and/orcompressing, a polymeric material, such as an ultra-high molecular weight polyolefin (e.g.,an ultra-high molecular weight polyethylene (UHMWPE)), below, or above a melt

temperature of the polymeric material to disentangle polymeric chains of the polymericmaterial. The disentangled materials provided can be effectively and efficiently

crosslinked, e.g., by using ionizing radiation (e.g., generated by a gamma radiation sourceand/or an electron beam source). Parts formed from the crosslinked polymeric materialshave, e.g., high wear resistance, enhanced stiffness, as reflected in flexural and tensilemoduli, a high level of fatigue and crack propagation resistance, and enhanced creepresistance. Some of the crosslinked polymeric materials have a low coefficient of friction.Prior to elongating, it can be desirable to slightly crosslink the polymeric material toimpart shape memory into the polymeric material.

申请人：Anuj Bellare

地址：Brighton MA US

国籍：US

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