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Synthesis of elastomeric carborane-siloxanes by hydrosilation reactions

Patent image
NRL

A carborane-siloxane compound is provided having the repeat unit Q contains any of —SiR2—, —SiR2—O—, —C≡C—C≡C—, carboranyl, and U′. Each R and R′ is alkyl, aryl, alkylaryl, haloalkyl, haloaryl, or mixtures thereof. Each U′ is derivable from hydrosilation of an alkenyl or alkynyl group. Each T is alkyl, aryl, alkylaryl, haloalkyl, haloaryl, mixtures thereof, —(O—SiR′2)xH, or the repeat unit. Each x and x′ is a positive integer. The compounds may be made be reacting a carborane-siloxane precursor having unsaturated end groups with a siloxane crosslinker in the presence of a hydrosilation catalyst.

Inventors: 
Keller, Teddy M.; Kolel-veetil, Manoj K.
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2007-03-20
Grant Date: 
2008-11-11
Grant time: 
602 days
Grant time percentile rank: 
10
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY