Title:
ROOM TEMPERATURE CURING ORGANOPOLYSILOXANE COMPOSITION AND PRODUCTION METHOD THEREOF, AND LONG LIFE COOLANT SEALANT FOR AUTOMOBILE
Document Type and Number:
Japanese Patent JP2019073670
Kind Code:
A
Abstract:
To provide a room temperature curing organopolysiloxane composition which has excellent resistance performance to LLC, offers good adhesion and curability, reduces the VOC content, and has excellent productivity.SOLUTION: The room temperature curing organopolysiloxane composition comprises: (A) an organopolysiloxane; (B) an inorganic filler; (C) a hydrolyzable organosilane compound and/or a partial hydrolytic condensate thereof; (D) a pre-mixture of an organopolysiloxane having a three-dimentional network structure and an organopolysiloxane having both terminals blocked by hydroxyl groups, the former comprising RSiOunits and SiOunits (R: monovalent C1-6 hydrocarbon groups which are each independently non-substituted or substituted), having a molar ratio of the RSiOunit to the SiOunit of 0.5 to 1.5, containing hydroxyl groups bonded to silicon atoms in an amount of 0.01 to 0.08 mole/100 g, and having a number average molecular weight of 4000 to 10000; (E) a silane coupling agent and/or a partial hydrolytic condensate thereof; and (F) a curing catalyst.SELECTED DRAWING: None
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Inventors:
UDA AKIRA
SAKAMOTO TAKAFUMI
SAKAMOTO TAKAFUMI
Application Number:
JP2017202765A
Publication Date:
May 16, 2019
Filing Date:
October 19, 2017
Export Citation:
Assignee:
SHINETSU CHEMICAL CO
International Classes:
C08L83/06; C08J3/20; C08K3/00; C08K5/54; C08L83/04; C09K3/10
Attorney, Agent or Firm:
Hideaki International Patent Office