Method of manufacture of multi-layer roll having compliant PTFE

Details Method of manufacture of multi-layer roll having compliant PTFE Method of manufacture of multi-layer roll having compliant PTFE

1998-02-04

2000-11-07

Cuda, Irene

Metal working

Method of mechanical manufacture

Roller making

2989532, 492 56, B27P 1500

Patent

active

061418730

ABSTRACT:
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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patent: 5711072 (1998-01-01), Nakamura
patent: 5753165 (1998-05-01), Watanabe et al.

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