Silicone resin compositions and coated articles

Details Silicone resin compositions and coated articles Silicone resin compositions and coated articles

2005-01-13

2009-10-13

Peng, Kuo-Liang (Department: 1796)

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

Synthetic resins

From silicon reactant having at least one...

C428S447000, C528S041000

Reexamination Certificate

active

07601792

ABSTRACT:
To a silicone resin obtained through cohydrolytic condensation of 100 pbw of a mixture of 1-50 Si mol % of tetraalkoxysilane, 50-99 Si mol % of trialkoxysilane and 0-10 Si mol % of dialkoxysilane with less than 100 pbw of water, having a Mn of at least 1,500 and containing 30-80 mol % of R1SiO3/2units and 20-70 mol % of R1SiO2/2(OX) and R1SiO1/2(OX)2units combined, a curing catalyst and a solvent are added to formulate a silicone resin composition. It is applied and heat cured to a plastic substrate to form a protective coat having a high hardness and improved properties such as mar resistance, crack resistance, adhesion, water resistance, heat resistance and weathering resistance.

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