Title:
CURABLE ORGANOPOLYSILOXANE COMPOSITION FOR TRANSDUCERS, CURED PRODUCT OF SAME, AND TRANSDUCER AND OTHERS EACH PROVIDED WITH SAID CURED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2024/075661
Kind Code:
A1
Abstract:
[Problem] To provide: a curable organopolysiloxane composition from which an organopolysiloxane cured product having viscoelastic properties (particularly, reversion characteristics after deformation by an external stress) that are particularly suitable for a dielectric layer for transducers; and a use of this curable organopolysiloxane composition. [Solution] Provided are: a curable organopolysiloxane composition for transducers, the curable organopolysiloxane composition comprising (a) a linear organopolysiloxane having a weight average molecular weight (Mw(a)) of less than 8.0 × 104 and having a curing-reactive group or a mixture thereof, (b1) an organohydrogenpolysiloxane that serves as a crosslinking agent, (b2) an organohydrogenpolysiloxane that serves as a chain-extending agent, and (c) a hydrosilylation reaction catalyst, in which the value determined by dividing the value of Mw(a) by the value of p×1 defined by the formula p×1 = (Hb1/Hb2)/((Hb1+Hb2)/Vi), i.e., (= Mw(a)/p×1), is 1,000 to 8,000 wherein (Hb1 and Hb2) respectively represent the substance amounts of Si-H in the components (b1) and (b2) and Vi represents the substance amount of a curing-reactive group in the component (a); and a use of the curable organopolysiloxane composition.
Inventors:
FUKUI HIROSHI (JP)
SHIMA RYOTO (JP)
SHIMA RYOTO (JP)
Application Number:
PCT/JP2023/035780
Publication Date:
April 11, 2024
Filing Date:
September 29, 2023
Export Citation:
Assignee:
DOW TORAY CO LTD (JP)
International Classes:
C08L83/07; B32B27/00; C08J5/18; C08K3/013; C08L83/05; H04R19/02; H10N30/857
Domestic Patent References:
| WO2020090797A1 | 2020-05-07 | |||
| WO2020116596A1 | 2020-06-11 | |||
| WO2020121939A1 | 2020-06-18 | |||
| WO2021125353A1 | 2021-06-24 | |||
| WO2020166692A1 | 2020-08-20 | |||
| WO2020116441A1 | 2020-06-11 | |||
| WO2020017480A1 | 2020-01-23 | |||
| WO2023282270A1 | 2023-01-12 |
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