# US 2020/0399409 A1 · Modified resin for molded article and golf ball

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- Number: US 2020/0399409 A1
- Document ID: US20200399409A1
- Status: Published application
- Kind: A1
- Application number: 16/968,417
- Filed: 2019-02-12
- Published: 2020-12-24
- Earliest claimed: 2018-02-15
- Assignees: Dow-Mitsui Polychemicals Co., Ltd.
- Applicants: Dow-Mitsui Polychemicals Co., Ltd.
- Inventors: Takahiro SHIMIZU
- Web page: https://patentgrep.com/patent/US20200399409A1

## CPC

- C08F 8/44: Preparation of metal salts or ammonium salts
- C08F 220/06: Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
- A63B 37/0024: {Materials other than ionomers or polyurethane}
- A63B 37/0039: {characterised by the material}
- A63B 37/005: {Cores}
- B29B 7/005: {for mixing in batches}
- B29B 7/007: {for continuous mixing}
- C08F 8/30: Introducing nitrogen atoms or nitrogen-containing groups
- C08F 210/02: Ethene
- C08K 5/19: Quaternary ammonium compounds
- C08L 23/0869: with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters
- A63B 37/0051: {Materials other than polybutadienes; Constructional details}
- B29K 2023/08: {Copolymers of ethylene (B29K2023/16 takes precedence)}
- B29K 2033/12: {Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate}
- C08K 5/31: Guanidine; Derivatives thereof
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

The present invention is a modified resin for a molded article obtained by modifying an ethylene/unsaturated carboxylic acid copolymer with guanidine carbonate, wherein a melt flow rate of the ethylene/unsaturated carboxylic acid copolymer is 20 (g/10 minutes) or more and 600 (g/10 minutes) or less.

## Claims

### Claim 1

A modified resin for a molded article obtained by modifying an ethylene/unsaturated carboxylic acid copolymer with at least one guanidine compound selected from guanidine derivatives and salts thereof,
wherein a melt flow rate of the ethylene/unsaturated carboxylic acid copolymer is 20 (g/10 minutes) or more and 600 (g/10 minutes) or less.

### Claim 2 (depends on 1)

The modified resin for a molded article according to claim 1, wherein the ethylene/unsaturated carboxylic acid copolymer is an ethylene/(meth) acrylic acid copolymer.

### Claim 3 (depends on 1)

The modified resin for a molded article according to claim 1, wherein a content of a constituent unit derived from the unsaturated carboxylic acid in the ethylene/unsaturated carboxylic acid copolymer is 10% by mass or more and 30% by mass or less with respect to the total content of constituent units of the ethylene/unsaturated carboxylic acid copolymer.

### Claim 4 (depends on 1)

The modified resin for a molded article according to claim 1, wherein the ratio (B/A) of the total number of moles (B) of the guanidino group or guanidinium ion in the guanidine compound to the total number of moles (A) of the carboxyl group contained in the ethylene/unsaturated carboxylic acid copolymer in the modified resin for a molded article, is 0.05 or more and 0.8 or less.

### Claim 5 (depends on 1)

The modified resin for a molded article according to claim 1, wherein the guanidine salt is guanidine carbonate.

### Claim 6 (depends on 1)

The modified resin for a molded article according to claim 1, which is obtained by melt kneading the ethylene/unsaturated carboxylic acid copolymer and at least one guanidine compound selected from guanidine derivatives and salts thereof.

### Claim 7 (depends on 1)

A golf ball comprising the modified resin for a molded article according to claim 1.