Chain-linking agent, curable resin composition and cured product thereof, chain linking method, and epoxy resin
AssigneeHonshu Chemical Industry Co., Ltd.
InventorsDaichi OKAMURA, Takahiro ASAEDA, Yuma SHIBASAKI
Life of this patent
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Abstract
An object is to provide a curing agent that has good handleability such as solvent solubility and that is used in a curable resin composition that gives a cured product excellent in heat resistance and dielectric properties. As a solution, a chain-linking agent for a thermosetting compound and/or a compound having a radical polymerizable substituent, the chain-linking agent including an ester compound represented by general formula (1), is provided.
Claims14
A chain-linking agent for a thermosetting compound and/or a compound having a radical polymerizable substituent, the chain-linking agent comprising an ester compound represented by general formula (1);
- wherein each R1 independently represents an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms, each R2 independently represents a single bond or a divalent hydrocarbon group having 1 to 10 carbon atoms, each R3 independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a), (1b), or (1c), and each n independently represents 0 or an integer of 1 to 4;
- wherein R4 and R5 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R4 and R5 may be bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, Ar1 and Ar2 represent an aryl group having 6 to 12 carbon atoms, and each * represents a bonding position.
A curable resin composition comprising:
- a curable resin component (A) comprising a thermosetting compound and/or a compound having a radical polymerizable substituent;
- and a chain-linking agent (B) comprising an ester compound represented by general formula (1);
- wherein each R1 independently represents an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms, each R2 independently represents a single bond or a divalent hydrocarbon group having 1 to 10 carbon atoms, each R3 independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a), (1b), or (1c), and each n independently represents 0 or an integer of 1 to 4;
- wherein R4 and R5 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R4 and R5 may be bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, Ar1 and Ar2 represent an aryl group having 6 to 12 carbon atoms, and each * represents a bonding position.
A chain-linking method comprising causing chain-linking through a reaction with a thermosetting compound and/or a compound having a radical polymerizable substituent using a chain-linking agent comprising an ester compound represented by general formula (1);
- wherein each R1 independently represents an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms, each R2 independently represents a single bond or a divalent hydrocarbon group having 1 to 10 carbon atoms, each R3 independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a), (1b), or (1c), and each n independently represents 0 or an integer of 1 to 4;
- wherein R4 and R5 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R4 and R5 may be bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, Ar1 and Ar2 represent an aryl group having 6 to 12 carbon atoms, and each * represents a bonding position.
An epoxy resin formed by causing chain-linking through a reaction of any one selected from an aromatic diglycidyl ether compound, a mixture containing an aromatic dihydroxy compound and epihalohydrin, and an epoxy group-containing phenoxy resin formed by polymerizing an aromatic dihydroxy compound and epihalohydrin with an ester compound represented by general formula (1);
- wherein each R1 independently represents an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms, each R2 independently represents a single bond or a divalent hydrocarbon group having 1 to 10 carbon atoms, each R3 independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a single bond, an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, or a divalent group represented by general formula (1a), (1b), or (1c), and each n independently represents 0 or an integer of 1 to 4;
- wherein R4 and R5 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, R4 and R5 may be bonded to each other to together form a cycloalkylidene group having 5 to 20 carbon atoms, Ar1 and Ar2 represent an aryl group having 6 to 12 carbon atoms, and each * represents a bonding position.
Dependencies are inferred from the claim text.