Gasket composition comprising fibrillated PTFE

Details Gasket composition comprising fibrillated PTFE Gasket composition comprising fibrillated PTFE

1989-05-01

1991-02-05

Lilling, Herbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

428283, 428325, 428422, 428463, 524430, 524447, 524456, 524546, C08K 334, C08K 300, F16J 1500, F16J 1512

Patent

active

049905449

ABSTRACT:
Use of a composition comprising a polytetrafluoroethylene resin and a fine inorganic powder for a gasket, said composition being characterized in that the polytetrafluoroethylene resin is at least 5% by weight and the fine inorganic powder is at least 40% by weight, based on the total amount of the polytetrafluoroethylene resin and the fine inorganic powder; the total amount of the polytetrafluoroethylene resin and the fine inorganic powder is at least 80% by weight based on the entire amount of the composition; and the polytetrafluoroethylene resin and the fine inorganic powder are mutually uniformly dispersed and mixed with each other.

REFERENCES:
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patent: 3984044 (1976-10-01), Breton et al.
patent: 4042747 (1977-08-01), Breton et al.
patent: 4153661 (1979-05-01), Ree et al.
patent: 4207705 (1980-06-01), Errede et al.
patent: 4335180 (1982-06-01), Traut
patent: 4596837 (1986-06-01), Yamamoto et al.
patent: 4620995 (1986-11-01), Otomo et al.

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