Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2011-08-30
2011-08-30
Loewe, Robert (Department: 1766)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S031000, C525S477000
Reexamination Certificate
active
08008420
ABSTRACT:
An organohydrogenpoly siloxane resin having the formula (I): (R1R32SiO½)w(R32SiO½)x(R1SiO3/2)y(SiO4/2)z, wherein R1is C1to C10hydrocarbyl or C1to C10halogen-substituted hydrocarbyl, both free of aliphatic unsaturation, R3is R1or an organosilylalkyl group having at least one siliconbonded hydrogen atom, w is from 0 to 0.8, x is from 0 to 0.6, y is from 0 to 0.99, z is from 0 to 0.35, w+x+y+z=1, y+z/(w+x+y+z) is from 0.2 to 0.99, w+x/(w+x+y+z) is from 0.01 to 0.8, and at least 50 mol % of the groups R3are organosilylalkyl; a silicone composition containing the resin, and a cured silicone resin prepared by curing the silicone composition.
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Dow Corning Corporation
Loewe Robert
Milco Larry A.
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