# US 9,751,954 B2 · Resin composition and resin molded article

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,751,954 B2
- Document ID: US9751954B2
- Status: Granted
- Kind: B2
- Application number: 14/834,974
- Filed: 2015-08-25
- Published: 2016-09-29
- Granted: 2017-09-05
- Earliest claimed: 2015-03-26
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Kenji Yao
- Web page: https://patentgrep.com/patent/US9751954B2

## CPC

- C08B 3/00: Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)}
- C08B 3/16: Preparation of mixed organic cellulose esters {, e.g. cellulose aceto-formate or cellulose aceto-propionate}
- C08L 1/02: Cellulose; Modified cellulose
- C08L 1/10: Esters of organic acids {, i.e. acylates}
- C08B: POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A resin composition includes a cellulose derivative, wherein a Hazen color number (APHA) of the resin composition is 50 or lower.

## Claims

### Claim 1

A resin composition comprising:
a cellulose derivative represented by the following formula (I):
where n represents an integer of 2 or greater, R1, R2, and R3 each independently represent a hydrogen atom or an acyl group, and plural acyl groups are all identical,
wherein a Hazen color number (APHA) of the resin composition is in a range of from 5 to 40.

### Claim 2 (depends on 1)

The resin composition according to claim 1, wherein the Hazen color number (APHA) is in a range of from 5 to 30.

### Claim 3 (depends on 1)

The resin composition according to claim 1, wherein a weight average molecular weight of the cellulose derivative is 10,000 or greater and less than 75,000.

### Claim 4 (depends on 1)

The resin composition according to claim 1, wherein a weight average molecular weight of the cellulose derivative is in a range of from 20,000 to 50,000.

### Claim 5 (depends on 1)

The resin composition according to claim 1, wherein a substitution degree of the acyl group is in a range of from 1.8 to 2.5.

### Claim 6 (depends on 3)

The resin composition according to claim 3, wherein a substitution degree of the acyl group is in a range of from 1.8 to 2.5.

### Claim 7 (depends on 5)

The resin composition according to claim 5, wherein the substitution degree of the acyl group is in a range of from 2.0 to 2.5.

### Claim 8 (depends on 6)

The resin composition according to claim 6, wherein the substitution degree of the acyl group is in a range of from 2.0 to 2.5.

### Claim 9 (depends on 5)

The resin composition according to claim 5, wherein the substitution degree of the acyl group is in a range of from 2.2 to 2.5.

### Claim 10 (depends on 6)

The resin composition according to claim 6, wherein the substitution degree of the acyl group is in a range of from 2.2 to 2.5.

### Claim 11 (depends on 1)

The resin composition according to claim 1, wherein a ratio occupied by the cellulose derivative with respect to a total amount of the resin composition is 70% by weight or greater.

### Claim 12 (depends on 3)

The resin composition according to claim 3, wherein a ratio occupied by the cellulose derivative with respect to a total amount of the resin composition is 70% by weight or greater.

### Claim 13 (depends on 5)

The resin composition according to claim 5, wherein a ratio occupied by the cellulose derivative with respect to a total amount of the resin composition is 70% by weight or greater.

### Claim 14 (depends on 6)

The resin composition according to claim 6, wherein a ratio occupied by the cellulose derivative with respect to a total amount of the resin composition is 70% by weight or greater.

### Claim 15 (depends on 1)

A resin molded article comprising:
the resin composition according to claim 1.

### Claim 16 (depends on 15)

The resin molded article according to claim 15, which is molded by injection molding.

### Claim 17 (depends on 1)

The resin composition according to claim 1, wherein R1, R2, and R3 each independently represent a hydrogen atom or an acetyl group.

### Claim 18

A resin composition comprising:
a cellulose derivative represented by the following formula (I):
where n represents an integer of 2 or greater, R1, R2, and R3 each independently represent a hydrogen atom or an acyl group, and plural acyl groups are all identical,
wherein:
a Hazen color number (APHA) of the resin composition is 50 or lower, and
a weight average molecular weight of the cellulose derivative is 10,000 or greater and less than 75,000.

### Claim 19

A resin composition comprising:
a cellulose derivative represented by the following formula (I):
where n represents an integer of 2 or greater, R1, R2, and R3 each independently represent a hydrogen atom or an acyl group, and plural acyl groups are all identical,
wherein:
a Hazen color number (APHA) of the resin composition is 50 or lower, and
a substitution degree of the acyl group is in a range of from 1.8 to 2.5.