Molded product manufactured from high heat resistant polycarbonate ester

Patent metadata

Field	Value
Publication number	US-11590682-B2
Application number	US-201816757570-A
Country	US
Kind code	B2
Filing date	Nov 8, 2018
Priority date	Nov 9, 2017
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

The present invention relates to a molded product manufactured from a high heat resistant bio-based polycarbonate ester. More specifically, the molded product has excellent heat resistance, and thus can be applied to various fields such as those of automobiles, electrical electronics, displays, aviation, machines, lighting, medicine or food.

First claim

The invention claimed is:

1. An article molded from a bio-based polycarbonate ester having high heat resistance,
wherein the highly heat-resistant, bio-based polycarbonate ester comprises a repeat unit 1 represented by the following Formula 1; a repeat unit 2 represented by the following Formula 2; and a repeat unit 3 represented by the following Formula 3, in molar fractions of x, y, and z, respectively:

 and
wherein the highly heat-resistant, bio-based polycarbonate ester has a glass transition temperature (Tg) of 160 to 240° C. and a melt flow index (MI) of 5 to 150 g/10 min when measured at 260° C. under a load of 2.16 kg, and
wherein the molar fraction x for the repeat unit 1 is a real number of greater than 0 to less than 1, the molar fraction y for the repeat unit 2 is a real number of greater than 0 to 0.7, and the molar fraction z for the repeat unit 3 is a real number of greater than 0 to 0.6.

2. The article of claim 1 , which is an automobile part.

3. The article of claim 1 , which is an electric/electronic part.

4. The article of claim 1 , which is a lighting part.

5. The article of claim 1 , which is a medical product.

6. The article of claim 1 , which is a display part.

7. The article of claim 1 , which is an aviation part.

8. The article of claim 1 , which is a machine part.

9. The article of claim 1 , which is a food container.

10. The article of claim 1 , wherein the repeat unit 1 is obtained from reaction of 1,4:3,6-dianhydrohexitol and a carbonate,
the repeat unit 2 is obtained from reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate, and
the repeat unit 3 is obtained from reaction of 1,4:3,6-dianhydrohexitol and a terephthalate.

11. An article molded from a bio-based polycarbonate ester having high heat resistance,
wherein the highly heat-resistant, bio-based polycarbonate ester comprises a repeat unit 1 represented by the following Formula 1; a repeat unit 2 represented by the following Formula 2; and a repeat unit 3 represented by the following Formula 3:

 and
wherein the highly heat-resistance, bio-based polycarbonate ester is composed of the above repeat units 1 to 3, and
when the molar fractions of the repeat units 1 to 3 are x, y, and z, respectively, x is a real number of greater than 0 to less than 1, y is a real number of greater than 0 to 0.7, z is a real number of greater than 0 to 0.6, and x+y+z is 1.

Assignees

• Sk Chemicals Co Ltd

Inventors

• Oh Kwang Sei

Classifications

• B29C49/0006 Primary

  for heating or cooling · CPC title

• C08G64/302 Primary

  and cyclic ethers · CPC title

• C08G63/64

  Polyesters containing both carboxylic ester groups and carbonate groups · CPC title

• B29C45/0001

  characterised by the choice of material · CPC title

• B29K2269/00

  Use of {PC, i.e.} polycarbonates {or derivatives thereof} as reinforcement · CPC title