US 11,739,184 B2
Polysiloxazane compound having alkoxysilyl group, process for producing same, and composition and cured product including same
Masato Kawakami, Joetsu (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Filed by Shin-Etsu Chemical Co., Ltd., Tokyo (JP)
Filed on Sep. 23, 2020, as Appl. No. 17/29,959.
Claims priority of application No. 2019-177517 (JP), filed on Sep. 27, 2019.
Prior Publication US 2021/0095079 A1, Apr. 1, 2021
Int. Cl. C08G 77/62 (2006.01); C08K 5/06 (2006.01); C08L 83/14 (2006.01); C09D 183/14 (2006.01)
CPC C08G 77/62 (2013.01) [C08K 5/06 (2013.01); C08L 83/14 (2013.01); C09D 183/14 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A polysiloxazane compound having an alkoxysilyl group, having an average composition of formula (1) below:

OG Complex Work Unit Chemistry
wherein R1 each independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 50 carbon atoms that optionally contains O or S, R2 each independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R3 each independently represents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R4 each independently represents a substituted or unsubstituted divalent hydrocarbon group having 2 to 20 carbon atoms that optionally contains O, S, or Si, X each independently represents a methyl group, NH—SiR1X, (NH)(4-m/2)—SiR1m, or (NH)(3-t/2)—SiR3rR4—Y (wherein R1, R3, and R4 represent a meaning same as above), Y represents a group of formula (2) or (3) below:

OG Complex Work Unit Chemistry
(wherein R2 represents a meaning same as above, R5 and R6 each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, Z represents a substituted or unsubstituted divalent hydrocarbon group having 1 to 18 carbon atoms, or an oxygen atom, p is an integer of 0 to 9, and q is 0, 1, or
n is each independently an integer of 11 to 500, m is each independently 0, 1, or each independently 0 or 1, and a, b, and c are numbers that satisfy 0<a<1, 0≤b<1, 0<c<1, and a+2b+2c=1, and if X is NH—SiR1X, 0≤s≤2a (wherein s is a total number of X).