# US 5,344,956 A · Fluoroacrylate monomers and polymers, processes for preparing the same and their use

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- Number: US 5,344,956 A
- Document ID: US5344956A
- Status: Granted
- Kind: A
- Application number: 08/016,160
- Filed: 1993-02-09
- Granted: 1994-09-06
- Earliest claimed: 1992-04-21
- Assignees: Minnesota Mining and Manufacturing Company
- Inventors: Kathy Allewaert; Dirk Coppens; Francecka Fieuws
- Web page: https://patentgrep.com/patent/US5344956A

## CPC

- D21H 21/16: Sizing or water-repelling agents
- C04B 41/4846: {Perfluoro-compounds}
- C14C 9/00: Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- D06M 15/576: containing fluorine
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- C14C: CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING (bleaching of leather or furs D06L; dyeing of leather or furs D06P)
- D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS

## Abstract

The invention provides polymers or copolymers which are prepared by the polymerization of the reaction product of a diisocyanate with a perfluoro compound or an epichlorhydrinadduct thereof and (meth)acrylic esters of a three hydroxyl groups containing compound. Furthermore, the invention relates to fluoroacrylic monomers, a process for preparing the polymers or copolymers and a treatment agent comprising the polymers or copolymers of the invention and an environmentally acceptable solvent. Polymers and copolymers of the invention can be used for making textiles, papers, non-woven articles, leather, plastic, wood, metal, stone and cement water and oil repellent.

## Claims

### Claim 1

Fluoroacrylate monomers obtained by the reaction of
a) diisocyanates with a perfluoro compound or an epichlorhydrinadduct thereof, said perfluoro compound having a terminal hydroxyl, thiol, primary or secondary amino group, attached to the perfluoroalkyl group directly via an alkylene bridge or indirectly via an alkylene bridge and a sulphonamido, carbonamide, ether, thioether, sulphonyl or carboxylic ester group between the perfluoroalkyl and the alkylene group, and
b) (meth)acrylic esters of a three hydroxyl group-containing compound.

### Claim 2 (depends on 1)

Fluoroacrylate monomer of claim 1 wherein the (meth)acrylic esters are the reaction products of an equimolar reaction between (meth)acrylic acid and a three hydroxyl group containing compound.

### Claim 3 (depends on 1)

Fluoroacrylate monomer according to claim 1 wherein said diisocyanates are aliphatic, alicyclic or aromatic.

### Claim 4 (depends on 1)

Fluoroacrylate monomer according to claim 1 wherein the three hydroxyl groups containing compound is an alkanetriol or a triolamine.

### Claim 5 (depends on 1)

Fluoroacrylate monomer according to claim 1 wherein the fluoro compounds are perfluoro alkyl substituted compounds with a terminal hydroxyl group.

### Claim 6 (depends on 1)

Fluoroacrylate monomers according to claim 1 wherein the perfluoro compounds are N-alkyl(perfluorooctane)sulphoneamido alkyl alcohols or perfluoroalkyl group containing alcohols.