SILICONE-COATED FILLER, METHOD OF PRODUCING SAME, AND RESIN COMPOSITION

Title:

SILICONE-COATED FILLER, METHOD OF PRODUCING SAME, AND RESIN COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2019/069535

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a method capable of producing a silicone-coated filler that is capable of yielding sufficient viscosity-reducing effects when dispersed in a silicone resin. The method comprises a first step for reacting a first silicone material comprising multiple SiH groups with the surface of a particulate material formed from alumina, and a second step for subsequently addition-reacting a second silicone material comprising a terminal vinyl group. The SiH groups are capable of reacting with OH groups on the surface of the alumina, and strongly bond to the surface of the particulate material. In the second step, the second silicone material is bonded to the first silicone material. In this way, the first silicone material and the second silicone material can be strongly bonded in that order to the surface of the particulate material, and the produced silicone-coated filler is capable of yielding sufficient viscosity-reducing effects when dispersed in a silicone resin (control: test example 1; present invention: test examples 3–5; comparative examples: test examples 2 and 6).

Inventors:

NOGUCHI SHINGI (JP)
KURAKI MASARU (JP)
NAKAMURA TENPO (JP)
INOUE TOMIO (JP)

Application Number:

PCT/JP2018/026938

Publication Date:

April 11, 2019

Filing Date:

July 18, 2018

Export Citation:

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Assignee:

ADMATECHS CO LTD (JP)

International Classes:

C01B13/14; C01F7/02; C08K3/20; C08L83/04

Foreign References:

JP2010090007A	2010-04-22
JP2010090008A	2010-04-22
JP2015086092A	2015-05-07
JP2014537532A	2012-09-05
JP2014185069A	2014-10-02
JP2006206413A	2006-08-10

Other References: