Title:
ROOM TEMPERATURE-CURABLE ORGANOPOLYSILOXANE COMPOSITION AND AUTOMOBILE LONG-LIFE COOLANT SEALING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/014968
Kind Code:
A1
Abstract:
Disclosed is a room temperature-curable organopolysiloxane composition for automobile LLC seals, the composition comprising: (A) 100 parts by mass of an organopolysiloxane having a viscosity of at least 2,000 mPa·s at 23°C; (B) 1-500 parts by mass of an inorganic filler; (C) 0.1-40 parts by mass of a specific hydrolyzable organic silicon compound, and/or a partially hydrolyzed condensate thereof, that is represented by formula (2) or (3) and contains, per molecule, at least three isopropenoxy groups each bonded to a silicon atom; (D) 0.01-10 parts by mass of a silane coupling agent and/or a partially hydrolyzed condensate thereof; and (E) 0.01-20 parts by mass of a curing catalyst. The composition has excellent LLC resistance and heat resistance, offers excellent adhesiveness and curability, has reduced VOC content, and is suitable as a material for FIPGs.
Inventors:
UTA AKIRA (JP)
Application Number:
PCT/JP2020/026628
Publication Date:
January 28, 2021
Filing Date:
July 08, 2020
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C08L83/06; C08K3/013; C08K5/5425; C09K3/10
Foreign References:
| JPH01165663A | 1989-06-29 | |||
| JPH02206654A | 1990-08-16 | |||
| JPS5677230A | 1981-06-25 | |||
| JPS63192791A | 1988-08-10 | |||
| JPS6363684A | 1988-03-22 | |||
| US3472888A | 1969-10-14 | |||
| JP2010530023A | 2010-09-02 | |||
| JPH02218755A | 1990-08-31 |
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)
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