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MULTILAYER ROLL HAVING A COMPLIANT PTFE TOP LAYER FORMED FROM A FIBRILLATED PTFE MEMBRANE AND METHOD OF MANUFACTURE
MULTILAYER ROLL HAVING A COMPLIANT PTFE TOP LAYER FORMED FROM A FIBRILLATED PTFE MEMBRANE AND METHOD OF MANUFACTURE
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机译:具有由原纤化的PTFE膜制成的合适的PTFE顶层的多层辊及其制造方法
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摘要
A micro-compliant roll having a PTFE top layer on a silicone rubber baselayer bonded to a metallic insert is provided. The roll with PTFE top coat is heated under pressure to a temperature below the PTFE crystalline melting point and quenched to provide a compliant top layer having crystallinity of no more than about 70 percent. The PTFE top layer is applied by adhering a fibrillated PTFE membrane to a silicone rubber baselayer using a primer of a blend of silane and a polyamide resin, or wrapping the PTFE film about an insert with end spiders placed in a sleeve mold and liquid or flowable elastomer is injected into the space between the insert and PTFE membrane.
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