Title:
PLATINUM-PHOSPHITE ESTER COMPLEX-CONTAINING HYDROSILYLATION CATALYST, METHOD FOR PREPARING SAME, METHOD FOR INHIBITING CRYSTALLIZATION OF PLATINUM-PHOSPHITE ESTER COMPLEX-CONTAINING HYDROSILYLATION CATALYST, AND CURABLE ORGANOPOLYSILOXANE COMPOSITION AND ARTICLE
Document Type and Number:
WIPO Patent Application WO/2023/013443
Kind Code:
A1
Abstract:
A platinum-phosphite ester complex-containing hydrosilylation catalyst has good storage stability and comprises: a platinum-phosphite ester complex composed of platinum and a phosphite ester compound having a specific structure; and a liquid alkenyl group-containing siloxane compound containing an organopolysiloxane compound having two or more adjacent alkenyl groups, the catalyst being free of a hydrocarbon-based organic solvent and being liquid at 23°C. By using the catalyst, a one-component (one-part) curable organopolysiloxane composition free of a hydrocarbon-based organic solvent can be easily obtained, and the resulting one-component curable organopolysiloxane composition has stable characteristics and physical properties even when exposed to ambient temperature for a long period of time.
Inventors:
ARAKI TADASHI (JP)
Application Number:
PCT/JP2022/028469
Publication Date:
February 09, 2023
Filing Date:
July 22, 2022
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08L83/07; C08K5/524
Domestic Patent References:
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Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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