Process for preparing clustered functional polyorganosiloxanes, and methods for their use

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United States of America Patent

PATENT NO 9593209
APP PUB NO 20120245272A1
SERIAL NO

13508375

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Abstract

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A hydrosilylation process is used to prepare a polyorganosiloxane having clustered functional groups at the polyorganosiloxane chain terminals. The ingredients used in the process include a) a polyorganosiloxane having an average of at least 2 aliphatically unsaturated organic groups per molecule, b) a polyorganohydrogensiloxane having an average of 4 to 15 silicon atoms per molecule and at least 4 silicon bonded hydrogen atoms for each aliphatically unsaturated organic group in ingredient a), c) a reactive species having, per molecule at least 1 aliphatically unsaturated organic group and 1 or more curable groups; and d) a hydrosilylation catalyst. The resulting clustered functional polyorganosiloxane is useful in a curable silicone composition for electronics applications.

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Patent Owner(s)

  • DOW CORNING CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dent, Stanton Midland, US 3 38
Su, Kai Midland, US 55 492
Tonge, James Sanford, US 23 248
Tonge, Lauren Sanford, US 20 97

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