# US 12,760,137 B2 · Photosensitive resin composition, cured product thereof and multilayer material

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- Number: US 12,760,137 B2
- Document ID: US12760137B2
- Status: Granted
- Kind: B2
- Application number: 18/031,350
- Filed: 2021-11-04
- Published: 2023-11-23
- Granted: 2026-10-13
- Earliest claimed: 2020-11-06
- Assignees: Nippon Kayaku Kabushiki Kaisha
- Applicants: Nippon Kayaku Kabushiki Kaisha
- Inventors: Kengo Nishimura; Takahumi Mizuguchi; Kazuyoshi Yamamoto; Mai Tsubamoto
- Web page: https://patentgrep.com/patent/US12760137B2

## CPC

- C08F 283/10: on to polymers containing more than one epoxy radical per molecule {(C08F283/004 takes precedence)}
- C08G 73/12: Unsaturated polyimide precursors
- G03F 7/0387: {Polyamides or polyimides}
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- G03F: PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; (phototypographic composing devices B41B; photosensitive materials or processes for photographic purposes G03C; electrophotography, sensitive layers or processes therefor G03G)

## Abstract

A resin composition contains a maleimide compound (I) that is the product of a reaction between a diamine (a-1) derived from a dimer acid and maleic anhydride, and a reactive polycarboxylic acid resin (II) that is the product of a reaction between a reactive epoxycarboxylate resin, the reactive epoxycarboxylate resin being the product of a reaction between an epoxy resin (b-1) and a compound (b-2) having a polymerizable ethylenically unsaturated group and a carboxy group together in one molecule, and a polybasic acid anhydride (b-3).

## Claims

### Claim 1

A resin composition, comprising: a maleimide compound (I), being a product of reaction between a dimer acid-derived diamine (a-1) and maleic anhydride; and a reactive polycarboxylic acid resin (II), being a product of reaction between a reactive epoxycarboxylate resin and a polybasic acid anhydride (b-3), wherein the reactive epoxycarboxylate resin is a product of reaction between an epoxy resin (b-1) and a compound (b-2) having a polymerizable ethylenically unsaturated group and a carboxy group together in one molecule.

### Claim 2 (depends on 1)

The resin composition according to claim 1, wherein the maleimide compound (I) comprises the dimer acid-derived diamine (a-1), a polybasic acid anhydride (a-2), and the maleic anhydride.

### Claim 3 (depends on 2)

The resin composition according to claim 2, wherein the polybasic acid anhydride (a-2) has an alicyclic structure.

### Claim 4 (depends on 1)

The resin composition according to claim 1, wherein the maleimide compound (I) is expressed by general formula (1):
wherein, in formula (1), R1 represents a dimer acid-derived divalent hydrocarbon group (a), R2 represents a divalent organic group (b) other than the dimer acid-derived divalent hydrocarbon group (a), R3 represents any one selected from a group consisting of the dimer acid-derived divalent hydrocarbon group (a) and the divalent organic group (b) other than the dimer acid-derived divalent hydrocarbon group (a), R4 and R5 each independently contain, with respect to a total amount of R4 and R5 of 100 mol %, 5 mol % to 95 mol % of one or more organic groups selected from a C6 to C40 tetravalent organic group having a monocyclic or condensed polycyclic alicyclic structure, a C4 to C40 tetravalent organic group in which organic groups having a monocyclic alicyclic structure are connected to each other directly or via a crosslinked structure, and a C4 to C40 tetravalent organic group having a semi-alicyclic structure including both an alicyclic structure and an aromatic ring, m is an integer of 1 to 30, n is an integer of 0 to 30, a plurality of R1 and a plurality of R4 may each be the same or different in response to m being 2 or more, and a plurality of R2 and a plurality of R5 may each be the same or different in response to n being 2 or more.

### Claim 5 (depends on 1)

The resin composition according to claim 1, wherein the epoxy resin (b-1) is expressed by general formula (2):
wherein, in formula (2), R6 represents a hydrocarbon group containing an aromatic ring or a C1 to C40 alicyclic skeleton, R7 may each be the same or different and represents a hydrogen atom, a halogen atom or a C1 to C40 hydrocarbon group, and x is an integer of 1 to 30.

### Claim 6 (depends on 1)

The resin composition according to claim 1, comprising a photopolymerization initiator.

### Claim 7 (depends on 1)

A cured product of the resin composition according to claim 1.

### Claim 8 (depends on 7)

A multilayer material comprising a layer of the cured product according to claim 7.