High temperature carborane-siloxane elastomers intermediate poly

Details High temperature carborane-siloxane elastomers intermediate poly High temperature carborane-siloxane elastomers intermediate poly

1977-02-22

1979-03-20

Marquis, Melvyn I.

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

Synthetic resins

From boron reactant having at least one boron to hydrogen or...

260 37SB, 528 30, 528 32, 528 34, 528 41, 528 43, C08G 7704

Patent

active

041455045

ABSTRACT:
Carborane-siloxane polymers are conveniently prepared by the polymerization of a carborane disilanol and either a silyl diamine, a ureido-silane, or a silyl dicarbamate. The resulting linear polymers are characterized by relatively high molecular weights and are elastomeric in nature. These gumstocks are compounded with suitable fillers and additives and fabricated into cured elastomeric articles. The carborane-siloxane elastomers exhibit excellent high temperature properties which render them especially useful for a wide variety of applications, such as gaskets, seals, wire and cable insulation and the like.

REFERENCES:
patent: 3388092 (1968-06-01), Heying et al.
patent: 3661847 (1972-05-01), Chapman
patent: 3733298 (1973-05-01), Knollmueller

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