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Production of polyethylene furanoate in a retrofitted pet plant

Inactive Publication Date: 2019-01-24
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a process for making a composition comprising PEF using a reactor that has previously been used in a polyester plant. The process involves polymerizing FDCA and a diol using a specific polymerization reactor. The technical effect of this process is that it allows for the efficient manufacture of PEF in a cost-effective and efficient manner. The process can also be used for making compositions containing PEF using different types of diols and FDCA or DMFD.

Problems solved by technology

However, achieving high yields has proved difficult.
This multi-step purification process generates wasteful by-products.

Method used

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  • Production of polyethylene furanoate in a retrofitted pet plant
  • Production of polyethylene furanoate in a retrofitted pet plant
  • Production of polyethylene furanoate in a retrofitted pet plant

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Embodiment Construction

[0016]It should be understood that the following is not intended to be an exclusive list of defined terms. Other definitions may be provided in the foregoing description, such as, for example, when accompanying the use of a defined term in context.

[0017]As used herein, the terms “a,”“an,” and “the” mean one or more.

[0018]As used herein, the terms “comprising,”“comprises,” and “comprise” are open-ended transition terms used to transition from a subject recited before the term to one or more elements recited after the term, where the element or elements listed after the transition term are not necessarily the only elements that make up the subject.

[0019]As used herein, the terms “containing,”“having,”“has,” and “have” have the same open-ended meaning as “comprising,”“comprises,” and “comprise” provided above.

[0020]As used herein, the terms “including,”“includes,” and “include” have the same open-ended meaning as “comprising,”“comprises,” and “comprise” provided above.

[0021]The present...

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Abstract

Disclosed is a process for the manufacture of a composition comprising PEF; wherein said process polymerizes FDCA and a diol in a polymerization reactor; wherein the polymerization reaction occurs in at least one reactor previously used in a polyester plant to produce said composition comprising PEF.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Application Ser. No. 62 / 534,861 filed Jul. 20, 2017, now pending, the disclosure of which is herein incorporated by reference in its entirety.BACKGROUNDField of the Invention[0002]The invention relates to the processes for the production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) vapor and purified DAFD compositions made therefrom. The Invention also relates to the manufacture of a composition comprising PEF (polyethylene furanoate).Background of the Invention[0003]Aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid or their di-esters, dimethyl terephthalate as for example, are used to produce a variety of polyester products, important examples of which are poly (ethylene terephthalate) and its copolymers. The aromatic dicarboxylic acids are synthesized by the catalytic oxidation of the corresponding dialkyl aromatic compounds which are obtained from fossi...

Claims

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Application Information

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IPC IPC(8): C08G63/672C08G63/66C08G63/78
CPCC08G63/672C08G63/66C08G63/785B01D3/06B01D5/003B01D8/00C08G63/181C08G63/78C07D307/68B01D19/0036B01D3/002
Inventor JANKA, MESFIN EJERSSAFONTENOT, KEVIN JOHNPARKER, KENNY RANDOLPH
Owner EASTMAN CHEM CO