# US 2025/0084202 A1 · Self-healing resin composition and self-healing membrane structure

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- Number: US 2025/0084202 A1
- Document ID: US20250084202A1
- Status: Published application
- Kind: A1
- Application number: 18/510,665
- Filed: 2023-11-16
- Published: 2025-03-13
- Earliest claimed: 2023-09-12
- Assignees: Nan Ya Plastics Corporation
- Applicants: Nan Ya Plastics Corporation
- Inventors: TE-CHAO LIAO; CHUN-CHE TSAO; Ren-Yu Liao
- Web page: https://patentgrep.com/patent/US20250084202A1

## CPC

- C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G 18/73: acyclic
- B32B 7/06: permitting easy separation
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/08: of synthetic resin
- B32B 27/10: of paper or cardboard
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/36: comprising polyesters
- B32B 27/40: comprising polyurethanes
- C08G 18/246: {containing also tin-carbon bonds}
- C08G 18/3215: {containing aromatic groups or benzoquinone groups}
- C08G 18/4238: {derived from dicarboxylic acids and dialcohols}
- C08G 18/755: {and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate}
- C08G 18/758: {containing two or more cycloaliphatic rings}
- C08G 18/7671: {containing only one alkylene bisphenyl group}
- C08G 18/792: {formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates}
- C09J 7/29: Laminated material (metallised plastics C09J7/22)
- C09J 7/38: Pressure-sensitive adhesives [PSA]
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/26: Polymeric coating
- B32B 2262/0276: Polyester fibres
- B32B 2307/732: Dimensional properties
- B32B 2307/748: Releasability
- C09J 2301/122: the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
- C09J 2301/302: the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
- C09J 2427/006: in the substrate
- C09J 2475/006: in the substrate
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)

## Abstract

A self-healing resin composition and a self-healing membrane structure are provided. The self-healing resin composition includes 20 phr to 50 phr of a self-healing resin, 1 phr to 10 phr of a hardener, 0.1 phr to 3 phr of a matting agent, and 40 phr to 80 phr of a solvent. The self-healing resin is polymerized from a polyester polyol, a diisocyanate monomer, and a bisphenol monomer. A molar ratio of a hydroxyl group to an isocyanate group in monomers to polymerize the self-healing resin ranges from 1.33 to 2.0. A number average molecular weight of the self-healing resin ranges from 30,000 g/mol to 200,000 g/mol.

## Claims

### Claim 1

A self-healing resin composition, comprising:
20 phr to 50 phr of a self-healing resin, wherein the self-healing resin is polymerized from a polyester polyol, a diisocyanate monomer, and a bisphenol monomer; wherein a molar ratio of a hydroxyl group to an isocyanate group in monomers to polymerize the self-healing resin ranges from 1.33 to 2.0, and a number average molecular weight of the self-healing resin ranges from 30,000 g/mol to 200,000 g/mol;
1 phr to 10 phr of a hardener;
0.1 phr to 3 phr of a matting agent; and
40 phr to 80 phr of a solvent.

### Claim 2 (depends on 1)

The self-healing resin composition according to claim 1, wherein, based on a total weight of the monomers to polymerize the self-healing resin being 100 wt %, an amount of the polyester polyol ranges from 75 wt % 90 wt %, an amount of the diisocyanate monomer ranges from 3 wt % 10 wt %, and an amount of the bisphenol monomer ranges from 5 wt % 15 wt %.

### Claim 3 (depends on 1)

The self-healing resin composition according to claim 1, wherein a number average molecular weight of the polyester polyol ranges from 3,000 g/mol to 5,000 g/mol.

### Claim 4 (depends on 1)

The self-healing resin composition according to claim 1, wherein the polyester polyol is polymerized from adipic acid, 1,4-butanediol, 1,6-hexanediol, and 2-methyl-1,3-propanediol.

### Claim 5 (depends on 4)

The self-healing resin composition according to claim 4, wherein a molar ratio of 1,4-butanediol to 1,6-hexanediol ranges from 1:0.5 to 1:2, and a molar ratio of 1,4-butanediol to 2-methyl-1,3-propanediol ranges from 1:0.33 to 1:3.

### Claim 6 (depends on 1)

The self-healing resin composition according to claim 1, wherein the diisocyanate monomer is selected from the group consisting of: hexamethylene diisocyanate, 4,4′-diisocyanato dicyclohexylmethane, isophorone diisocyanate, methylene diphenyl diisocyanate, and hexamethylene diisocyanate trimer.

### Claim 7 (depends on 1)

The self-healing resin composition according to claim 1, wherein the bisphenol monomer is selected from the group consisting of: bisphenol A, bis(4-hydroxyphenyl)cyclohexane, 1,1′-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, bisphenoxyethanolfluorene, and dimethyl-bisphenol A.

### Claim 8 (depends on 1)

A self-healing membrane structure, comprising;
a substrate layer having a first surface and a second surface;
a self-healing membrane layer disposed on the first surface, wherein the self-healing membrane layer is formed from the self-healing resin composition as claimed in claim 1;
an adhesive layer disposed on the second surface; and
a release layer, wherein the release layer is disposed on the adhesive layer, such that the adhesive layer is disposed between the substrate layer and the release layer.

### Claim 9 (depends on 8)

The self-healing membrane structure according to claim 8, wherein the substrate layer is a polyurethane substrate or a polyvinyl chloride substrate.

### Claim 10 (depends on 8)

The self-healing membrane structure according to claim 8, wherein a thickness of the self-healing membrane layer ranges from 5 μm to 50 μm.