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Title:
PHENOL-DENATURED POLYORGANOSILOXANE WITH REDUCED PLATINUM CONTENT, METHOD FOR PRODUCING SAME, AND ORGANIC RESIN MODIFIER CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2014/073605
Kind Code:
A1
Abstract:
Provided are a phenol-denatured polyorganosiloxane that is suitable as an organic resin modifier, has a small platinum metal content and is little yellowish, a method for producing the same, and an organic resin modifier containing the same. The phenol-denatured polyorganosiloxane according to the present invention is a compound of formula (I) that has a platinum metal content of 0.9 ppm or less. The phenol-denatured polyorganosiloxane according to the present invention can be produced by, for example, subjecting an alkenyl group-substituted phenol compound of formula (IV) and a polyorganohydrogen siloxane of formula (V) to a hydrosilylation reaction in the presence of a platinum-based catalyst that is applicable to a homogeneous system, and then conducting one or more kinds of filtration procedures selected from the group consisting of filtration with the addition of activated carbon, filtration using an activated carbon-containing filter, and filtration using a cationic charge adsorption filter, at least once either alone and/or in combination, to reduce the platinum metal content to 0.9 ppm or less.

Inventors:
SUGIURA TSUNEHITO (JP)
CHAYAMA YASUNORI (JP)
MATSUBA MASASHI (JP)
Application Number:
PCT/JP2013/080107
Publication Date:
May 15, 2014
Filing Date:
November 07, 2013
Export Citation:
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Assignee:
DOW CORNING TORAY CO LTD (JP)
International Classes:
C08G77/38; C08G64/18; C08K5/13; C08L83/04
Domestic Patent References:
WO2002004545A12002-01-17
WO2011071128A12011-06-16
WO1999024509A11999-05-20
Foreign References:
JPH04120132A1992-04-21
JPH0733859A1995-02-03
JP2005134392A2005-05-26
JPH06184310A1994-07-05
JPH10182832A1998-07-07
JP2001147544A2001-05-29
JPH0379626A1991-04-04
JPH1017670A1998-01-20
JPH07238170A1995-09-12
JPH05156019A1993-06-22
JPH10182823A1998-07-07
Other References:
See also references of EP 2933284A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
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