Patent ID: 11952441
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. The production method according to claim 1, wherein the fluoropolyether has a repeating unit selected from the group consisting of formulas (1a) to (1d):

(—CFCF3—CF2—O—)n  (1a)

(—CF2—CF2—CF2—O—)n  (1b)

(—CF2—CF2—O—)n—(—CF2—O—)m  (1c)

(—CF2—CFCF3—O—)n—(—CF2—O—)m  (1d)

wherein m and n are integers of 1 or more.