Monofunctional phenolic compound, active ester resin and method for producing the same, and thermosetting resin composition and cured product thereof

Patent metadata

Field	Value
Publication number	US-12017980-B2
Application number	US-201917276536-A
Country	US
Kind code	B2
Filing date	Sep 12, 2019
Priority date	Sep 18, 2018
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

Provided are a monofunctional phenolic compound used for producing an active ester resin capable of forming a cured product having excellent dielectric properties and excellent heat resistance, an active ester resin and a method for producing the active ester resin, and a thermosetting resin composition and a cured product of the thermosetting resin composition. Specifically, provided are a monofunctional phenolic compound including one or more vinylbenzyl groups and an active ester resin including a vinylbenzyl structure attached to a terminal group of the molecular chain and derived from the monofunctional phenolic compound. The vinylbenzyl structure preferably includes a vinylbenzyl-modified aryloxycarbonyl group.

First claim

The invention claimed is:

1. A monofunctional phenolic compound comprising one or more vinylbenzyl groups, including a structure represented by Formula (1) or (2)

wherein, in Formulae (1) and (2), R 1 represents a vinylbenzyl group and R 2 represents a hydrogen atom, an alkyl group, or an aryl group; in Formula (1), n is an integer of 1 to 5, m is an integer of 0 to 4, and the sum of n and m is 5; in Formula (2), n is an integer of 1 to 7 and m is an integer of 0 to 6; in Formula (2), the sum of n and m is 7; and, in Formulae (1) and (2), R 1 may be identical to or different from each other and R 2 may be identical to or different from each other.

2. A raw material composition for producing active ester resins, the raw material composition comprising the monofunctional phenolic compound according to claim 1 .

3. An active ester resin comprising a vinylbenzyl structure attached to a terminal group of a molecular chain of the active ester resin, the vinylbenzyl structure being derived from the monofunctional phenolic compound according to claim 1 .

4. A method for producing an active ester resin, the method comprising causing the monofunctional phenolic compound according to claim 1 to react with an aromatic polycarboxylic acid or derivative thereof.

5. The active ester resin according to claim 3 , wherein the vinylbenzyl structure includes a vinylbenzyl-modified aryloxycarbonyl group.

6. The active ester resin according to claim 3 , the active ester resin including vinylbenzyl groups attached to respective terminal groups of a backbone of the active ester resin.

7. The active ester resin according to claim 3 , the active ester resin including a structure represented by Formula (I)

wherein, in Formula (I), n represents an integer of 0 to 20, X represents a reaction residue of a monofunctional phenolic compound including a vinylbenzyl group, and Y represents a reaction residue of a polyfunctional phenolic compound.

8. A thermosetting resin composition comprising the active ester resin according to claim 3 and a curing agent.

9. The thermosetting resin composition according to claim 8 , the thermosetting resin composition being used for substrates for electronic components.

10. A cured product of the thermosetting resin composition according to claim 8 .

11. A package substrate comprising the thermosetting resin composition according to claim 8 .

Assignees

• Dainippon Ink & Chemicals

Inventors

• Hazama Masaki
• Hayashi Koji

Classifications

• H10W70/695

  Organic materials · CPC title

• C08F212/32

  containing two or more rings · CPC title

• C08F112/34

  Monomers containing two or more unsaturated aliphatic radicals · CPC title

• C08F12/24 Primary

  Phenols or alcohols · CPC title

• C08G63/21

  in the presence of unsaturated monocarboxylic acids or unsaturated monohydric alcohols or reactive derivatives thereof · CPC title