Synthesis of elastomeric carborane-siloxanes by...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From boron reactant having at least one boron to hydrogen or...

Reexamination Certificate

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Reexamination Certificate

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07153921

ABSTRACT:
A crosslinked polymer and process of making it are disclosed. A copolymer having at least one alkyne group, carborane group, and alkylsiloxane group is reacted with a siloxane crosslinker in a hydrosilation reaction. This produces a crosslinked polymer where the crosslink sites are reacted alkyne groups.

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Houser et al, “Hydrosilation Routes to Materials with High Thermal and Oxidatives Stabilities”, Journal of Polymer Science: Part A: Polymer Chemistry, vol. 36, pp. 1969-1972, 1998.
Tillack et al, “Catalytic Asymmetric Hydrosilylation of Butadiynes: A New Synthesis of Optically Active Allenes”, Tetrahedron Letters, vol. 40, pp. 6567-6568, 1999.
Lewis et al, “Platinum-Catalyzed Hydrosilylation-Colloid Formation as the Essential Step”, Journal of American Chemical Society, vol. 108, pp. 7228-7231, 1986.

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