Process for producing an organsiloxane polymer
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United States of America Patent
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May 1, 2012
Grant Date -
Jan 21, 2010
app pub date -
Feb 26, 2008
filing date -
Feb 27, 2007
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Abstract
Process for producing an organosiloxane polymer and novel organosiloxane polymer compositions. The process according to the invention comprises hydrolyzing tetraalkoxysilane monomers in a hydrolysis step; and polymerizing said hydrolyzed monomers in a polymerization step by subjecting them to conditions conducive to polymerization to form an organosiloxane polymer. The hydrolysis step is conducted in a reaction medium comprising an organic compound with hydroxy groups. The invention allows for the synthesis of siloxane polymer compositions suitable for thin-film applications using a high content of tetra- and trifunctional silixane polymer precursors.
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