Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-10-09
1989-06-13
Lilling, Herbert J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428325, 428422, 428465, 524430, 524447, 524456, 524546, F16J 1512, C08K 334
Patent
active
048392219
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:
patent: 4042747 (1977-08-01), Breton et al.
patent: 4335180 (1982-06-01), Traut
patent: 4518737 (1985-05-01), Traut
patent: 4563488 (1986-01-01), Minami et al.
patent: 4620995 (1986-11-01), Otomo et al.
Asaumi Hiroshi
Hirai Takene
Nakamura Ken'ichi
Shimura Zenji
Suzuki Shinzaburo
Lilling Herbert J.
Nichias Corporation
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