Polyester resin and preparation method of the same
US-2021309796-A1 · Oct 7, 2021 · US
Polyester resin and preparation method of the same
US11518848B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11518848-B2 |
| Application number | US-201917262048-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 8, 2019 |
| Priority date | Aug 8, 2018 |
| Publication date | Dec 6, 2022 |
| Grant date | Dec 6, 2022 |
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- Title
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Abstract
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A polyester resin that exhibits heat resistance and transparency by including at least dispiro[5.1.5.1]tetradecane-7,14-diol as a diol component, and a preparation method of this polyester resin are disclosed. The polyester resin is obtained by copolymerization of two or more glycols in addition to dispiro[5.1.5.1]tetradecane-7,14-diol and dicarboxylic acid component, which may include terephthalic acid. The diol component may include 1,4-cyclohexanedimethanol in a range from 30 to 50 mol % based on 100 mol % of the dicarboxylic acid and dispiro[5.1.5.1]tetradecane-7,14-diol in a range from 5 to 60 mol % based on 100 mol % of the dicarboxylic acid moiety and ethylene glycol.
First claim
Opening claim text (preview).
What is claimed is: 1. A polyester resin obtained by copolymerization of a dicarboxylic acid component and a diol component, comprising a dicarboxylic acid moiety derived from the dicarboxylic acid component and a diol moiety derived from the diol component, wherein the dicarboxylic acid component comprises terephthalic acid, the diol component comprises dispiro[5.1.5.1]tetradecane-7,14-diol and 1,4-cyclohexanedimethanol, the diol moiety derived from dispiro[5.1.5.1]tetradecane-7,14-diol is included in 5 to 60 mol % based on 100 mol % of the dicarboxylic acid moiety, and the diol moiety derived from 1,4-cyclohexanedimethanol is included in 30 to 50 mol % based on 100 mol % of the dicarboxylic acid moiety. 2. The polyester resin of claim 1 , wherein the diol component further comprises at least one selected from the group consisting of a C8 to C40 aromatic diol and a C2 to C20 aliphatic diol in addition to dispiro[5.1.5.1]tetradecane-7,14-diol and 1,4-cyclohexanedimethanol. 3. The polyester resin of claim 1 , wherein the dicarboxylic acid component further comprises at least one acid component selected from the group consisting of a C8 to C20 aromatic dicarboxylic acid component and a C4 to C20 aliphatic dicarboxylic acid component in addition to terephthalic acid. 4. The polyester resin of claim 1 , wherein the polyester resin has a glass transition temperature (Tg) of 90° C. or more. 5. The polyester resin of claim 1 , wherein the diol component further comprises ethylene glycol in addition to dispiro[5.1.5.1]tetradecane-7,14-diol and 1,4-cyclohexanedimethanol.
Assignees
Inventors
Classifications
Boron, aluminium, gallium, indium, thallium, rare-earth metals, or compounds thereof {(C08G63/823 takes precedence)} · CPC title
- C08G63/183Primary
Terephthalic acids · CPC title
- C08G63/199Primary
Acids or hydroxy compounds containing cycloaliphatic rings · CPC title
Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof {(C08G63/823 takes precedence)} · CPC title
Preparation processes · CPC title
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- What does patent US11518848B2 cover?
- A polyester resin that exhibits heat resistance and transparency by including at least dispiro[5.1.5.1]tetradecane-7,14-diol as a diol component, and a preparation method of this polyester resin are disclosed. The polyester resin is obtained by copolymerization of two or more glycols in addition to dispiro[5.1.5.1]tetradecane-7,14-diol and dicarboxylic acid component, which may include terephth…
- Who is the assignee on this patent?
- Sk Chemicals Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08G63/183. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).