Blends of isosorbide-based copolycarbonate, method of making, and articles formed therefrom
US-8962770-B2 · Feb 24, 2015 · US
Highly heat-resistant and highly transparent polycarbonate ester, and preparation method therefor
US9963543B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9963543-B2 |
| Application number | US-201414903401-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2014 |
| Priority date | Jul 24, 2013 |
| Publication date | May 8, 2018 |
| Grant date | May 8, 2018 |
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- Title
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Abstract
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Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by formula 2 and phenol; and (2) preparing a compound comprising a repeat unit represented by formula 1 through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl-cyclohexanedicarboxylate prepared in step (1), a compound represented by formula 4 and 1,4:3,6-dianhydrohexitol.
First claim
Opening claim text (preview).
What is claimed is: 1. A bio-based polycarbonate ester consisting of: a repeating unit represented by Formula 1: wherein x satisfies 0<x<1, and wherein the ratio of cis/trans cyclohexanedicarboxylate unit is 20/80% to 80/20% in the repeating unit of Formula 1. 2. The bio-based polycarbonate ester of claim 1 , wherein the ratio of cis/trans cyclohexanedicarboxylate unit is 30/70% to 70/30% in the repeating unit of Formula 1. 3. The bio-based polycarbonate ester of claim 1 , wherein the ratio of cis/trans cyclohexanedicarboxylate unit is 40/60% in the repeating unit of Formula 1. 4. The bio-based polycarbonate ester of claim 1 , wherein the 1,4:3,6-dianhydrohexitol is isosorbide.
Assignees
Inventors
Classifications
- C08G63/66Primary
Polyesters containing oxygen in the form of ether groups (C08G63/42, C08G63/58 take precedence) · CPC title
Dicarboxylic acids and dihydroxy compounds · CPC title
Preparation processes · CPC title
- C08G63/64Primary
Polyesters containing both carboxylic ester groups and carbonate groups · CPC title
- C08G64/20Primary
General preparatory processes · CPC title
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- What does patent US9963543B2 cover?
- Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-…
- Who is the assignee on this patent?
- Sk Chemicals Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08G63/66. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 08 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).