# US 5,349,093 A · Fluorovinyl ether

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,349,093 A
- Document ID: US5349093A
- Status: Granted
- Kind: A
- Application number: 08/031,024
- Filed: 1993-03-11
- Granted: 1994-09-20
- Earliest claimed: 1987-04-25
- Assignees: Daikin Industries, Ltd.
- Inventors: Masahiko Oka; Mitsuru Kishine; Hideya Saito; Masuo Kokumai
- Web page: https://patentgrep.com/patent/US5349093A

## CPC

- C07C 43/17: containing halogen
- C08F 216/1416: {Monomers containing oxygen in addition to the ether oxygen, e.g. allyl glycidyl ether}
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A fluorovinyl ether of the formula: R.sub.f --(OCF.sub.2 CF.sub.2 CF.sub.2).sub.n --OCF.dbd.CF.sub.2(I) wherein R.sub.f is a C.sub.1- -C.sub.5 perfluoroalkyl group, n is an integer of 1 to 4 provided that when n is 1 (one), R.sub.f is other than a trifluoromethyl group, a copolymer of which with an ethylenically unsaturated compound has a low glass transition temperature and improved low temperature properties.

## Claims

### Claim 1

A fluorovinyl ether of the formula:
R.sub.f --(OCF.sub.2 CF.sub.2 CF.sub.2).sub.n --OCF.dbd.CF.sub.2(I)
wherein R.sub.f is C.sub.1 -C.sub.5 perfluoroalkyl group, n is an integer of 2 to 4.

### Claim 2 (depends on 1)

The fluorovinyl ether according to claim 1, which is CF.sub.3 CF.sub.2 CF.sub.2 (OCF.sub.2 CF.sub.2 CF.sub.2).sub.3 OCF.dbd.CF.sub.2.