Method of making a cylinder head gasket

Details Method of making a cylinder head gasket Method of making a cylinder head gasket

1983-09-28

1984-11-20

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277235B, 264137, 4273722, 4273,7, 427387, F16J 1512, B05D 138, B29G 500

Patent

active

044835396

ABSTRACT:
A cylinder head gasket having at least one plate of soft material and at least one combustion chamber opening, said soft material including predominantly inorganic fibers and/or filling materials connected by binding means and including free OH groups, the soft material is mixed with a first impregnating material comprising a polysiloxane containing reactive hydrogen groups for reaction with the free OH groups of the fibers or filling materials and a second impregnating material which consists of a second polysiloxane of a higher degree of polymerization than the first polysiloxane and which polymerizes with itself as well as with the reactive hydrogen groups of the first polysiloxane, said second polysiloxane forming a stable siloxane structure having more branches than the first polysiloxane.

REFERENCES:
patent: 2197916 (1940-04-01), Balfe
patent: 3532349 (1970-10-01), Czernik
patent: 3970322 (1976-07-01), Stecher et al.
patent: 4139508 (1979-02-01), Sorbier
patent: 4169185 (1979-09-01), Bhatia
patent: 4201804 (1980-05-01), Stecher et al.
patent: 4297253 (1981-10-01), Sorbier

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