Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2006-03-28
2006-03-28
Zimmer, Marc S. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S015000, C528S031000, C528S032000, C528S037000, C525S478000, C525S479000
Reexamination Certificate
active
07019100
ABSTRACT:
A curable silicone resin composition is provided which is useful as a material for optical devices or parts, insulation material for electronic devices or parts, or coating material, and which produces a cured product having high hardness and strength and further having good optical transmission in the short wavelength region. The composition includes (A) an aromatic hydrocarbon compound having at least two hydrogen atoms bonded to silicon atoms with the silicon atoms being bonded to the hydrocarbon skeleton of the aromatic hydrocarbon compound, (B) a cyclic siloxane compound having at least two silicon atom-bonded alkenyl groups, and (C) a hydrosilylation reaction catalyst, or (D) an aromatic hydrocarbon compound having at least two alkenyl groups bonded to silicon atoms with the silicon atoms being bonded to the hydrocarbon skeleton of the aromatic hydrocarbon compound, (E) a cyclic siloxane compound having at least two silicon atom-bonded hydrogen atoms, and (C) a hydrosilylation reaction catalyst.
REFERENCES:
patent: 5623030 (1997-04-01), Tsumura et al.
abstract of “Synthesis and some Properties of Poly[(phenylenesilcarbo)organocyclosiloxanes]” published in Vysokomolekulyarnye Soedineniya, Seriya A (1993), 35(5), pp 475-480.
U.S. Appl. No. 10/917,280, filed Aug. 13, 2004, Tabei, et al.
U.S. Appl. No. 10/960,048, filed Oct. 8, 2004, Tabei.
U.S. Appl. No. 11/087,599, filed Mar. 24, 2005, Tabei, et al.
Tabei Eiichi
Takarada Mitsuhiro
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Shin-Etsu Chemical Co. , Ltd.
Zimmer Marc S.
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