Title:
PLATINUM-PHOSPHITE COMPLEX-CONTAINING HYDROSILYLATION CATALYST, METHOD FOR PRODUCING SAME, CURABLE ORGANOPOLYSILOXANE COMPOSITION, AND ARTICLE
Document Type and Number:
WIPO Patent Application WO/2023/136259
Kind Code:
A1
Abstract:
This platinum-phosphite complex-containing hydrosilylation catalyst is liquid at 23°C, does not contain a hydrocarbon-based organic solvent, and comprises: a platinum-phosphite complex formed of platinum and a phosphite compound having a specific structure; an alkenyl group-containing siloxane compound that is liquid at 23°C and that contains an organopolysiloxane compound having two or more adjacent alkenyl groups; and an acetylene alcohol having a melting point of 35°C or lower. The catalyst has excellent storage stability. By using the catalyst, it is possible to easily obtain a one-component type (one-liquid type) curable organopolysiloxane composition not containing a hydrocarbon-based organic solvent. Further, the obtained one-component type curable organopolysiloxane composition has stable physical properties and characteristics even in a state of being exposed to ordinary temperatures for a long period of time.
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Inventors:
ARAKI TADASHI (JP)
Application Number:
PCT/JP2023/000419
Publication Date:
July 20, 2023
Filing Date:
January 11, 2023
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08G77/08; B01J31/18; C07C33/042; C07F7/21; C07F9/145; C07F15/00; C08L83/04
Foreign References:
| JPH09183906A | 1997-07-15 | |||
| JP2021127373A | 2021-09-02 | |||
| JP2021042323A | 2021-03-18 | |||
| JP2020522582A | 2020-07-30 | |||
| JP2005325315A | 2005-11-24 | |||
| JPH11140320A | 1999-05-25 | |||
| JPH11140322A | 1999-05-25 | |||
| JP2006182935A | 2006-07-13 | |||
| JPH0995614A | 1997-04-08 |
Attorney, Agent or Firm:
PATENT ATTORNEY CORPORATION EI-MEI PATENT OFFICE (JP)
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