Title:
METHOD FOR PRODUCING FLUORINATED POLYETHER
Document Type and Number:
WIPO Patent Application WO/2023/058753
Kind Code:
A1
Abstract:
[Problem] To provide a method capable of producing a fluorinated polyether of a theoretical number-average molecular weight calculated from the number-average molecular weight of a raw material polyether compound at a high yield. [Solution] A method for producing a fluorinated polyether characterized by including a step (1) for performing an operation to adjust the molecular weight distribution of a polymer compound having a structural unit (R1-O) and obtaining a raw material compound represented by formula (X) and a step (2) for, after the step (1), introducing the raw material compound represented by formula (X), an inert gas, fluorine gas, and a solvent into a reactor to fluorinate the raw material compound. R4-O-(R1-O)x-R5 (X) (R1 is a C2-5 divalent hydrocarbon group; R4 and R5 each independently are a hydroxyl group protecting group; and x represents the average degree of polymerization and is a real number of 2.7-15.)
Inventors:
UMETANI MASATAKA (JP)
OSAWA NOBUO (JP)
KATO TSUYOSHI (JP)
KURODA TAKUMA (JP)
OSAWA NOBUO (JP)
KATO TSUYOSHI (JP)
KURODA TAKUMA (JP)
Application Number:
PCT/JP2022/037644
Publication Date:
April 13, 2023
Filing Date:
October 07, 2022
Export Citation:
Assignee:
RESONAC CORP (JP)
International Classes:
C07C67/307; C07C69/708
Foreign References:
| JP2018090492A | 2018-06-14 | |||
| JPH04500520A | 1992-01-30 | |||
| JPH04500827A | 1992-02-13 | |||
| JPS60202122A | 1985-10-12 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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