# US 5,350,823 A · Copolymers crosslinking at room temperature

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- Number: US 5,350,823 A
- Document ID: US5350823A
- Status: Granted
- Kind: A
- Application number: 08/135,617
- Filed: 1993-10-14
- Granted: 1994-09-27
- Earliest claimed: 1992-11-03
- Assignees: BASF SE
- Inventors: Karl Haeberle; Gerhard Bauer; Lothar Maempel
- Web page: https://patentgrep.com/patent/US5350823A

## CPC

- C09J 133/062: {Copolymers with monomers not covered by C09J133/06}
- C08F 246/00: Copolymers in which the nature of only the monomers in minority is defined
- C09D 133/062: {Copolymers with monomers not covered by C09D133/06}
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

Copolymers are composed of a) from 0.01 to 40% by weight of a copolymerized ethylenically unsaturated compound having at least one isocyanate group blocked with an oxime, b) from 30 to 99.99% by weight of at least one C.sub.1 -C.sub.20 -alkyl (meth)acrylate, one vinyl ester of carboxylic acids of 1 to 20 carbon atoms, one vinylaromatic of up to 20 carbon atoms, one ethylenically unsaturated nitrile of 3 to 6 carbon atoms, one vinyl halide or one nonaromatic hydrocarbon of 4 to 8 carbon atoms having at least 2 conjugated double bonds, c) from 0 to 30% by weight of at least one comonomer having at least one keto or aldehyde group and d) from 0 to 50% by weight of at least one further monomer.

## Claims

### Claim 1

A copolymer composed of
a) from 0.01 to 40% by weight of a copolymerized ethylenically unsaturated compound having at least one isocyanate group blocked with an oxime,
b) from 30 to 99.98% by weight of at least one monomer selected from the group consisting of C.sub.1 -C.sub.20 -alkyl (meth)acrylates, vinyl esters of carboxylic acids of 1 to 20 carbon atoms, vinylaromatics of up to 20 carbon atoms, ethylenically unsaturated nitriles of 3 to 6 carbon atoms, vinyl halides and nonaromatic hydrocarbons of 4 to 8 carbon atoms having at least 2 conjugated double bonds,
c) from 0.01 to 30% by weight of at least one comonomer having at least one keto or aldehyde group, and
d) from 0 to 50% by weight of at least one further monomer.

### Claim 2 (depends on 1)

A substrate coated with a copolymer as claimed in claim 1.