Gasket materials

C - Chemistry – Metallurgy – 08 – K

Patent

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400/1334

C08K 5/00 (2006.01) C08K 11/00 (2006.01) C08L 21/00 (2006.01) C08L 67/02 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1215488

IMPROVED GASKET MATERIALS Abstract The present invention relates to gasketing materials comprising a rubber binder, a pulverized rice hull filler and a polyester which preferably is crystallizable. The rice hull material acts as a reinforcing filler and, in combination with the rubber and polyester, provides gasketing materials which demonstrate the ability to conform to flange irregularities. As a result, the gaskets demonstrate remarkable sealing capabilities. When they comprise nitrile rubbers, they are also resistant to fuel absorption.

461232

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