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
2007-07-03
2007-07-03
Peng, Kuo-Liang (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From boron reactant having at least one boron to hydrogen or...
C528S032000, C528S031000
Reexamination Certificate
active
10874000
ABSTRACT:
A carborane-siloxane compound is provided having the repeat unitQ 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.
REFERENCES:
patent: 5272237 (1993-12-01), Keller et al.
patent: 5292779 (1994-03-01), Keller et al.
patent: 5969072 (1999-10-01), Keller et al.
patent: 5981678 (1999-11-01), Keller et al.
patent: 6187890 (2001-02-01), Fehn et al.
patent: 6225247 (2001-05-01), Keller et al.
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.
Keller Teddy M.
Kolel-Veetil Manoj K.
Grunkemeyer Joseph T.
Karasek John J.
Peng Kuo-Liang
The United States of America as represented by the Secretary of
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