US 4,029,867 A · Terpolymers of fluoroalkyl ethers and maleic anhydride

Abstract

Fluoroalkyl allyl (or methallyl) ethers are copolymerized with maleic anhydride. The copolymer products are useful for many purposes, including application to fibrous materials to provide both soil repellency and soil releasability.

Claims1

Dependent claims

A film-forming addition terpolymer which contains -

a. recurring units of the structure ##STR16## b. recurring units of the structure ##STR17## c. and recurring units of the structure ##STR18## the aforesaid units being in a molar ratio of 1:1:2.

Dependencies are inferred from the claim text.

Facts

Application

05/453,912Filed 22 Mar 1974 · division

Priority

22 Feb 1971

Granted

14 Jun 1977

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

D06M 15/353
Of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes: containing fluorine
C08F 8/00
Chemical modification by after-treatment
C08F 16/28
Monomers containing only one unsaturated aliphatic radical: monomers containing nitrogen
C08F 222/06
Anhydrides, e.g. cyclic anhydrides: maleic anhydride

Family

Serial117,777Parent of this division · filed 22 Feb 1971

Serial271,894Parent of this division · filed 14 Jul 1972

Serial322,588Parent of this division · filed 10 Jan 1973

3844827Parent of this division

3773728Parent of this division

3706594Parent of this division

US 4,029,867 AThis patent

From the US filing history. Foreign family members aren’t listed.

Terpolymers of fluoroalkyl ethers and maleic anhydride

Life of this patent

Abstract

Claims1

Terpolymers of fluoroalkyl ethers and maleic anhydride

Life of this patent

Abstract

Claims1