US 11,859,050 B2
Silanol-group-terminated polyoxyalkylene compound and production process therefor, room-temperature-curable composition, sealing material, and article
Takahiro Yamaguchi, Annaka (JP); Masayuki Ikeno, Annaka (JP); Isao Iwasaki, Annaka (JP); and Takafumi Sakamoto, Annaka (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Appl. No. 16/091,043
Filed by SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
PCT Filed Feb. 28, 2017, PCT No. PCT/JP2017/007648
§ 371(c)(1), (2) Date Oct. 3, 2018,
PCT Pub. No. WO2017/187762, PCT Pub. Date Nov. 2, 2017.
Claims priority of application No. 2016-088137 (JP), filed on Apr. 26, 2016; and application No. 2016-153413 (JP), filed on Aug. 4, 2016.
Prior Publication US 2019/0135978 A1, May 9, 2019
Int. Cl. C09J 171/02 (2006.01); C08G 65/336 (2006.01); C08G 77/46 (2006.01); C08L 83/12 (2006.01); C08L 71/02 (2006.01); C09K 3/10 (2006.01)
CPC C08G 65/336 (2013.01) [C08G 77/46 (2013.01); C08L 71/02 (2013.01); C08L 83/12 (2013.01); C09K 3/10 (2013.01); C09K 3/1018 (2013.01)] 1 Claim
 
1. A room-temperature-curable composition comprising:
(a) 100 parts by weight of a linear polyoxyalkylene compound having a number average molecular weight of 200 to 50,000 is represented by the following structural formula (2):

OG Complex Work Unit Chemistry
wherein R1 may be the same or different, and each represents an alkyl group having 1 to 20 carbon atoms, in which an alkyl group having 3 or more carbon atoms may be a cyclic cycloalkyl group, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydrogen atom, or a triorganosiloxy group represented by (R3)3Si—O— wherein each R3 is the same or different, and denotes a monovalent hydrocarbon group having 1 to 20 carbon atoms, n represents an integer of 2 to 8, m represents an integer of 2 to 8, Z is represented by the following formula (4):

OG Complex Work Unit Chemistry
wherein R4 represents a divalent hydrocarbon group, p represents an integer of 2 or more, and the broken line represents a linking bond;
(b) 0.1 to 30 parts by weight of:
a hydrolyzable organosilicon compound having two alkoxysilyl-vinylene groups on the same silicon atom, represented by the following general formula (7):

OG Complex Work Unit Chemistry
wherein R5 independently represents an unsubstituted or substituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R6 represents an unsubstituted or substituted alkyl group having 1 to 20 carbon atoms, or an unsubstituted or substituted cycloalkyl group having 3 to 20 carbon atoms, and a represents an integer of 1 to 3;
(c) 0.01 to 20 parts by weight of a curing catalyst;
per 100 parts by weight of the component (a),
(d) 3 to 1,000 parts by weight of a filler; and/or
(e) 0.1 to 30 parts by weight of an adhesion promoter; and
(f) 0.1 to 100 parts by weight of an organopolysiloxane represented by the following general formula (8):

OG Complex Work Unit Chemistry
wherein R7 independently represents an unsubstituted or substituted monovalent hydrocarbon group free of an aliphatic unsaturated bond having 1 to 20 carbon atoms, and q represents such a numerical value that the organopolysiloxane has viscosity of 1.5 to 1,000,000 mPa·s at 23° C.