Curable organopolysiloxane composition, use of the cured...

Details Curable organopolysiloxane composition, use of the cured... Curable organopolysiloxane composition, use of the cured...

2007-09-18

2007-09-18

Peng, Kuo-Liang (Department: 1712)

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

Synthetic resins

From silicon reactant having at least one...

C528S031000, C528S032000, C528S025000, C528S043000

Reexamination Certificate

active

10492569

ABSTRACT:
A curable organopolysiloxane composition capable of forming cured products of superior optical transmittance exhibiting little heat-induced yellowing over time. A semiconductor device having semiconductor elements encapsulated in a cured product of the composition. The composition includes (A) an organopolysiloxane having at least two silicon-bonded alkenyl groups per molecule and bearing silicon-bonded aryl groups, whose content relative to all silicon-bonded organic groups is not less than 40 mol %, (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (C) an organosiloxane oligomer complex of platinum, where the oligomer has not more than eight silicon atoms per molecule and bears silicon-bonded alkenyl groups and silicon-bonded aryl groups.

REFERENCES:
patent: 5616632 (1997-04-01), Fujiki et al.
patent: 6432137 (2002-08-01), Nanushyan et al.
patent: 01-17570 (2001-03-01), None

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