Silicone resin composition for water repellent coating

Details Silicone resin composition for water repellent coating Silicone resin composition for water repellent coating

2006-03-28

2006-03-28

Robertson, Jeffrey B. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S266000, C524S268000, C524S379000, C524S493000, C524S731000, C524S860000, C524S862000

Reexamination Certificate

active

07019069

ABSTRACT:
Resinous composition comprising: (A) 100 weight parts ofin-line-formulae description="In-line Formulae" end="lead"?(R2SiO2/2)w(RSiO3/2)x(SiO4/2)y(O1/2R1)zin-line-formulae description="In-line Formulae" end="tail"?wherein R is selected from the group consisting of monovalent hydrocarbon groups having 1 to 10 carbon atoms, R1is selected from the group consisting of the hydrogen atom and saturated hydrocarbon groups having from 1 to 6 carbon atoms, w is a number from 0 to 0.2, x is a number from 0.4 to 0.9, y is a number from 0.1 to 0.6, z is a number from 0.1 to 0.5, and (w+x+y)=1;(B) 20 to 150 weight parts of an alcohol-based solvent;(C) 100 to 1000 weight parts of a solvent selected from the group consisting of hydrocarbon-based solvents and polydimethylsiloxanes described by the formula Me3SiO(Me2SiO)nSiMe3, wherein Me is the methyl group and n has a value of 0 or 1;(D) 1 to 100 weight parts of a coupling agent selected from the group consisting of alkoxysilanes and silane coupling agents;(E) 0.1 to 20 weight parts of a condensation catalyst, and(F) 0.1 to 20 weight parts of a polyoxyalkylene-modified silicone.

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patent: 4639489 (1987-01-01), Aizawa et al.
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patent: 6372830 (2002-04-01), Sato et al.
patent: 6498197 (2002-12-01), Bialek et al.
patent: 6512015 (2003-01-01), Elms et al.

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