Thermoplastic structure for transporting refrigerant fluid
US-2015376335-A1 · Dec 31, 2015 · US
Copolymer and method for manufacturing the same
US2021347946A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021347946-A1 |
| Application number | US-202117216868-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 30, 2021 |
| Priority date | May 11, 2020 |
| Publication date | Nov 11, 2021 |
| Grant date | — |
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Abstract
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A method of forming a copolymer includes reactingwithto form a salt. x parts by mole of the salt with y parts by mole ofare reacted to form the copolymer having a chemical structure aswherein m=4-10, n=4-6, and x:y=1:9 to 4:6. The copolymer may have a relative viscosity of 1.5 to 4.0.
First claim
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What is claimed is: 1 . A copolymer, having a chemical structure of: wherein m=4-10, n=4-6, and x:y=1:9 to 4:6. 2 . The copolymer as claimed in claim 1 , wherein m=5-7 and n=5. 3 . The copolymer as claimed in claim 1 , wherein m=6 and n=5. 4 . The copolymer as claimed in claim 1 , having a relative viscosity of 1.5 to 4 . 0. 5 . A method of forming a copolymer, comprising: reacting with to form a salt; reacting x parts by mole of the salt with y parts by mole of to form the copolymer having a chemical structure as wherein m=4-10, n=4-6, and x:y=1:9 to 4:6. 6 . The method as claimed in claim 5 , wherein m=5-7 and n=5. 7 . The method as claimed in claim 5 , wherein the copolymer has a relative viscosity of 1.5 to 4.0. 8 . The method as claimed in claim 5 , wherein the salt has a chemical structure of 9 . The method as claimed in claim 5 , wherein the step of forming the salt is performed at a temperature of 25° C. to 100° C. under a pressure of 0.9 atm to 1.1 atm. 10 . The method as claimed in claim 5 , wherein the step of forming the copolymer is performed at a temperature of 250° C. to 290° C. under a pressure of 0.9 atm to 1.1 atm.
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- What does patent US2021347946A1 cover?
- A method of forming a copolymer includes reactingwithto form a salt. x parts by mole of the salt with y parts by mole ofare reacted to form the copolymer having a chemical structure aswherein m=4-10, n=4-6, and x:y=1:9 to 4:6. The copolymer may have a relative viscosity of 1.5 to 4.0.
- Who is the assignee on this patent?
- Ind Tech Res Inst
- What technology area does this patent fall under?
- Primary CPC classification C08G69/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 11 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).