# US 4,398,022 A · Extrusion blow moldable copolyesters

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- Number: US 4,398,022 A
- Document ID: US4398022A
- Status: Granted
- Kind: A
- Application number: 06/182,906
- Filed: 1980-09-02
- Granted: 1983-08-09
- Earliest claimed: 1980-09-02
- Assignees: Eastman Kodak Company
- Inventors: Bobby J. Sublett
- Web page: https://patentgrep.com/patent/US4398022A

## CPC

- C08G 63/16: Dicarboxylic acids and dihydroxy compounds
- C08G 63/18: the acids or hydroxy compounds containing carbocyclic rings
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

Disclosed are copolyesters which are capable of being extrusion blow molded into a variety of shapes such as, for example, bottles, films or the like. The copolyesters are derived from an acid component comprising terephthalic acid and 1,12-dodecanedioic acid, and a glycol component comprising 1,4-cyclohexanedimethanol.

## Claims

### Claim 1

Copolyester derived from
(A) an acid component comprising about 10-90 mole % terephthalic acid and about 90-10 mole % 1,12-dodecanedioic acid, and
(B) a glycol component comprising at least 60 mole % 1,4-cyclohexanedimethanol,
said copolyester having an inherent viscosity of about 0.5 to about 1.8 as determined at 23.degree. C. using 0.5 gram of polymer per 100 ml. of a solvent consisting of a 60/40 mixture of phenol/tetrachloroethane, and said mole % being based on 100 mole % acid and 100 mole % glycol.

### Claim 2

Copolyester derived from
(A) an acid component comprising about 40-60 mole % terephthalic acid and about 60-40 mole % 1,12-dodecanedioic acid, and
(B) a glycol component comprising at least 60 mole % 1,4-cyclohexanedimethanol,
said copolyester having an inherent viscosity of about 0.5 to about 1.8 as determined at 23.degree. C. using 0.5 gram of polymer per 100 ml. of a solvent consisting of a 60/40 mixture of phenol/tetrachloroethane, and said mole % being based on 100 mole % acid and 100 mole % glycol.

### Claim 3

Copolyester derived from
(A) an acid component comprising about 40-45 mole % terephthalic acid, about 40-45 mole % 1,12-dodecanedioic acid and about 10-20 mole % of a third dicarboxylic acid,
(B) a glycol component comprising at least 60 mole % 1,4-cyclohexanedimethanol,
said copolyester having an inherent viscosity of about 0.5 to about 1.8 as determined at 23.degree. C. using 0.5 gram of polymer per 100 ml. of a solvent consisting of a 60/40 mixture of phenol/tetrachloroethane, and said mole % being based on 100 mole % acid and 100 mole % glycol.

### Claim 4 (depends on 1)

An extrusion blow molded article of manufacture comprising the copolyester of claim 1.

### Claim 5 (depends on 2)

An extrusion blow molded article of manufacture comprising the copolyester of claim 2.

### Claim 6 (depends on 3)

An extrusion blow molded article of manufacture comprising the copolyester of claim 3.

### Claim 7 (depends on 1)

An extrusion blow molded film comprising the copolyester of claim 1.

### Claim 8 (depends on 2)

An extrusion blow molded film comprising the copolyester of claim 2.

### Claim 9 (depends on 3)

An extrusion blow molded film comprising the copolyester of claim 3.

### Claim 10 (depends on 1)

An extrusion blow molded container comprising the copolyester of claim 1.

### Claim 11 (depends on 2)

An extrusion blow molded container comprising the copolyester of claim 2.

### Claim 12 (depends on 3)

An extrusion blow molded container comprising the copolyester of claim 3.