Elastoforming die/form block comprising low-hardness silicone el

Details Elastoforming die/form block comprising low-hardness silicone el Elastoforming die/form block comprising low-hardness silicone el

1987-02-11

1989-04-25

Marquis, Melvyn I.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524260, 524267, 524490, 524491, 524588, C08K 524

Patent

active

048248916

ABSTRACT:
Resilient, crosslinked silicon elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, comprise a crosslinked fluid organopolysiloxane including at least one silicon-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.

REFERENCES:
patent: 3998778 (1976-12-01), Berg et al.
patent: 4386188 (1983-05-01), Grancio et al.
patent: 4722957 (1988-02-01), Braun et al.

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