US 11,807,758 B2
Siloxane polymer and method of producing siloxane polymer
Kazuya Suwa, Chiba (JP)
Assigned to JNC CORPORATION, Tokyo (JP)
Filed by JNC CORPORATION, Tokyo (JP)
Filed on Jan. 27, 2021, as Appl. No. 17/159,158.
Claims priority of application No. 2020-011626 (JP), filed on Jan. 28, 2020.
Prior Publication US 2021/0238419 A1, Aug. 5, 2021
Int. Cl. C08L 83/04 (2006.01); C08G 77/06 (2006.01); C08G 77/12 (2006.01); C08G 77/16 (2006.01); C08G 77/18 (2006.01); C08G 77/00 (2006.01); C08G 77/24 (2006.01); C08G 77/26 (2006.01); C08G 77/30 (2006.01); C08G 77/28 (2006.01); C08G 77/20 (2006.01)
CPC C08L 83/04 (2013.01) [C08G 77/06 (2013.01); C08G 77/12 (2013.01); C08G 77/16 (2013.01); C08G 77/18 (2013.01); C08G 77/20 (2013.01); C08G 77/24 (2013.01); C08G 77/26 (2013.01); C08G 77/28 (2013.01); C08G 77/30 (2013.01); C08G 77/70 (2013.01); C08G 77/80 (2013.01)] 19 Claims
 
1. A siloxane polymer comprising a repeating unit represented by Formula (1):

OG Complex Work Unit Chemistry
in the above formula, R0's independently represent an aryl group having 6 to 20 carbon atoms or a cycloalkyl group having 5 to 6 carbon atoms, and in the aryl group having 6 to 20 carbon atoms and the cycloalkyl group having 5 to 6 carbon atoms, any hydrogen atom may be independently substituted with a fluorine atom or an alkyl group having 1 to 20 carbon atoms;
R1's independently represent a hydrogen atom, an aryl group having 6 to 20 carbon atoms, a cycloalkyl group having 5 to 6 carbon atoms, an arylalkyl group having 7 to 40 carbon atoms, or an alkyl group having 1 to 40 carbon atoms, in the aryl group having 6 to 20 carbon atoms, the cycloalkyl group having 5 to 6 carbon atoms and the aryl group in the arylalkyl group having 7 to 40 carbon atoms, any hydrogen atom may be independently substituted with a fluorine atom or an alkyl group having 1 to 20 carbon atoms, in the alkylene group in the arylalkyl group having 7 to 40 carbon atoms, any hydrogen atom may be substituted with a fluorine atom, any —CH2— may be independently substituted with —O—, —CH═CH—, or a cycloalkylene group having 5 to 20 carbon atoms, in the alkyl group having 1 to 40 carbon atoms, any hydrogen atom may be independently substituted with a fluorine atom, and any —CH2— may be independently substituted with —O— or a cycloalkylene group having 5 to 20 carbon atoms;
R2, R4, R5 and R6 independently represent an aryl group having 6 to 20 carbon atoms, a cycloalkyl group having 5 to 6 carbon atoms, an arylalkyl group having 7 to 40 carbon atoms, or an alkyl group having 1 to 40 carbon atoms, in the aryl group having 6 to 20 carbon atoms, the cycloalkyl group having 5 to 6 carbon atoms and the aryl group in the arylalkyl group having 7 to 40 carbon atoms, any hydrogen atom may be independently substituted with a fluorine atom or an alkyl group having 1 to 20 carbon atoms, in the alkylene group in the arylalkyl group having 7 to 40 carbon atoms, any hydrogen atom may be substituted with a fluorine atom, any —CH2— may be independently substituted with —O—, —CH═CH—, or a cycloalkylene group having 5 to 20 carbon atoms, in the alkyl group having 1 to 40 carbon atoms, any hydrogen atom may be independently substituted with a fluorine atom, and any —CH2— may be independently substituted with —O— or a cycloalkylene group having 5 to 20 carbon atoms;
R3 represents a monovalent group having a reactive group, and when there are a plurality of R3's, they may be the same as or may be different from each other;
p represents an integer of 1 or more;
x represents an integer of 1 to 30;
y1, y2 and z represent an integer of 0 to 30;
g′ represents 0 or 1;
* represents a bonding position; and
y1, y2 or z is 1 or more and the group represented by Formula (2) is comprised as a terminal.