IP Library › Granted Patent US 12,617,902
Granted Patent B2
US 12,617,902 · App. 18/026,697 · Granted May 5, 2026

Composition and siloxane-based thermoplastic resin using same, and methods for producing same

Inventors: Kazuyoshi Uera (Tokyo, JP); Kohei Kamatani (Tokyo, JP); Hisato Akimoto (Tokyo, JP); Daisuke Taguchi (Tokyo, JP)
Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
C08G77/52C08G77/16C08G77/42C08G77/448
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Quick Facts
Patent No.
US 12,617,902
App. No.
18/026,697
Granted
May 5, 2026
Kind
B2
Abstract

To provide a composition containing a siloxane block-containing diol compound that is easy to manufacture industrially. A composition containing a siloxane block-containing diol compound, wherein the siloxane block-containing diol compound is represented by the following formula (I): wherein R 1 and R 2 are each independently an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group having 6 to 30 carbon atoms which may have a substituent, m is an integer of 1 to 25, n is an integer of 3 to 200, and Xs each independently represent any of the following formulae (I 1 ) to (I 6 ):

Claims (29)

1 . A composition comprising a siloxane block-containing diol compound, wherein the siloxane block-containing diol compound is represented by the following formula (I):

wherein

R 1 and R 2 are each independently an alkyl group having 1 to 20 carbon atoms which may have a substituent, or an aryl group having 6 to 30 carbon atoms which may have a substituent,

m is an integer of 1 to 25,

n is an integer of 3 to 200,

the Xs each independently represent any of the following formulae (I 1 ) to (I 5 ):

A 1 and A 2 are each independently —(CR 6A R 6B ) q1 — or —(O—(CR 6A R 6B ) q2 ) q3 —, wherein R 6A and R 6B are each independently H or an alkyl group having 1 to 6 carbon atoms, q1 is an integer of 0 to 10, q2 is an integer of 0 to 10, and q3 is an integer of 0 to 10,

R 3 and R 4 each independently represent a halogen atom, an aliphatic hydrocarbon group having 1 to 20 carbon atoms, an alkoxyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aromatic hydrocarbon group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an aromatic hydrocarbon-oxy group having 6 to 20 carbon atoms, or a cycloalkoxyl group having 3 to 20 carbon atoms,

p1 and p2 are each independently an integer of 0 to 4,

R 5 s each independently represent H or an alkyl group having 1 to 6 carbon atoms,

X 1 and X 2 are each independently a single bond or a group shown below:

wherein R 7 and R 8 are each independently H, a halogen atom, an aliphatic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an alkoxyl group having 1 to 20 carbon atoms which may have a substituent, or an aromatic hydrocarbon group having 6 to 20 carbon atoms which may have a substituent, or R 7 and R 8 may be bonded to each other to form a carbocyclic ring having 3 to 20 carbon atoms or a 5 to 12 membered heterocycle, R 9 and R 10 each independently represent H or an alkyl group having 1 to 6 carbon atoms, R 11 to R 16 each independently represent a halogen atom, an aliphatic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, an alkoxyl group having 1 to 20 carbon atoms which may have a substituent, or an aromatic hydrocarbon group having 6 to 12 carbon atoms which may have a substituent, r1 is an integer of 2 to 20,

the X 3 s each independently represent a divalent aromatic hydrocarbon group having 15 to 32 carbon atoms,

the X 4 s each independently represent a divalent group containing one or more hydrocarbon rings or heterocycles, wherein the divalent group containing one or more hydrocarbon rngs or heterocycles is selected from the group consisting of the following structures:

X 5 s each independently represent a divalent saturated heterocyclic group.

2 . A siloxane-based thermoplastic resin comprising a constituent unit derived from the siloxane block-containing diol compound according to claim 1 .

3 . A method for producing the composition according to claim 1 , comprising reacting

(A) a cyclic siloxane compound represented by the following formula (1):

wherein R 1 and R 2 are each independently an alkyl group which may have a substituent, an alkenyl group which may have a substituent, or an aryl group which may have a substituent, and

n is an integer of 3 to 30,

and/or a linear siloxane compound represented by the following formula (2):

wherein

R 3 and R 4 are each independently an alkyl group which may have a substituent, an alkenyl group which may have a substituent, or an aryl group which may have a substituent,

the Xs each independently represent a hydrogen atom, a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms which may have a substituent, a siloxy group having 1 to 10 carbon atoms which may have a substituent, a hydrocarbon group having 1 to 10 carbon atoms which may have a substituent, an oxygen atom-containing group having 1 to 10 carbon atoms which may have a substituent, a nitrogen atom-containing group having 1 to 10 carbon atoms which may have a substituent, or an amino group which may have a substituent, and

m is an integer of 2 to 10000, and

(B) a diol compound represented by the following formulae (J 1 ) to (J 5 ):

wherein A 1 and A 2, X 1 to X 5 , R 3 to R 5, and p1 to p2, are the same as defined in claim 1 , and

(C) a basic compound catalyst.

4 . A method for producing a siloxane-based thermoplastic resin, comprising a reacting the composition according to claim 1 with a thermoplastic resin at 160 to 400° C. in the presence of a catalyst.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2023
From: UERA, KAZUYOSHI; KAMATANI, KOHEI; AKIMOTO, HISATO; TAGUCHI, DAISUKE
To: MITSUBISHI GAS CHEMICAL COMPANY, INC.
Reel/Frame 063003/0779 →
Priority Claims (1)
JP 2020-158422 · Sep 23, 2020 · national
Continuity (1)
Related Publication 20230340177A1 · Oct 26, 2023
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