# US 10,479,884 B2 · Aqueous composition for hard surface applications with enhanced stability

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- Number: US 10,479,884 B2
- Document ID: US10479884B2
- Status: Granted
- Kind: B2
- Application number: 15/612,270
- Filed: 2017-06-02
- Published: 2017-12-07
- Granted: 2019-11-19
- Earliest claimed: 2016-06-03
- Assignees: Chemetall U.S., Inc.
- Applicants: Chemetall US, Inc.
- Inventors: Hoon Kim; Ronald Ascenzo; Peter Konopi
- Web page: https://patentgrep.com/patent/US10479884B2

## CPC

- C08L 25/02: Homopolymers or copolymers of hydrocarbons
- C08F 10/00: Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F 10/14: Monomers containing five or more carbon atoms
- C08F 22/04: Anhydrides, e.g. cyclic anhydrides
- C09D 123/00: Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C10M 171/04: Specified molecular weight or molecular weight distribution
- C10M 173/00: Lubricating compositions containing more than 10% water
- C08F 2500/01: High molecular weight, e.g. >800,000 Da.
- C08F 2500/03: Narrow molecular weight distribution, i.e. Mw/Mn < 3
- C08F 2500/10: Short chain branches
- C08L 23/18: Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L 33/04: Homopolymers or copolymers of esters {(C08L43/04 takes precedence)}
- C08L 2203/00: Applications
- C10M 2201/062: Oxides; Hydroxides; Carbonates or bicarbonates
- C10M 2201/087: Boron oxides, acids or salts
- C10M 2203/06: Well-defined aromatic compounds
- C10M 2203/106: Naphthenic fractions
- C10M 2203/1065: used as base material
- C10M 2205/028: containing aliphatic monomers having more than four carbon atoms
- C10M 2207/02: Hydroxy compounds
- C10M 2207/18: Tall oil acids
- C10M 2215/02: Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M 2215/042: containing hydroxy groups; Alkoxylated derivatives thereof
- C10M 2215/223: Five-membered rings containing nitrogen and carbon only
- C10M 2229/04: Siloxanes with specific structure
- C10N 2020/04: Molecular weight; Molecular weight distribution
- C10N 2030/12: Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
- C10N 2030/24: {Emulsion properties}
- C10N 2040/20: Metal working
- C10N 2070/00: Specific manufacturing methods for lubricant compositions
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- 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)
- C10M: LUBRICATING COMPOSITIONS (well drilling compositions C09K8/02); USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION (mould release, i.e. separating, agents for metals B22C3/00, for plastics or substances in a plastic state, in general B29C33/56, for glass C03B40/02; textile lubricating compositions D06M11/00, D06M13/00, D06M15/00; immersion oils for microscopy G02B21/33)
- C10N: INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS

## Abstract

The present invention relates to an aqueous composition with enhanced stability for hard surface applications containing at least one lipophilic compound and at least one copolymer, in which the at least one copolymer is a comb-type branched copolymer exhibiting an alternating sequence of monomeric units (a) having at least one hydrophilic group and monomeric units (b) having at least one lipophilic side chain. Moreover, a method for producing said composition as well as the use of the composition is concerned.

## Claims

### Claim 1

An aqueous composition for hard surface applications comprising at least one lipophilic compound that is an oil and at least one copolymer, characterized in that the at least one copolymer is a comb-type branched copolymer exhibiting an alternating sequence of monomeric units (a) each having at least one hydrophilic group and monomeric units (b) each having at least one lipophilic side chain,
wherein the at least one copolymer exhibits a molecular weight distribution the range of 1.2 to 3.0.

### Claim 2 (depends on 1)

The composition according to claim 1 characterized in that the at least one hydrophilic group of the monomeric units (a) is at least one ionic group.

### Claim 3 (depends on 2)

The composition according to claim 2 characterized in that the at least one ionic group is at least one carboxylate group.

### Claim 4 (depends on 3)

The composition according to claim 3 characterized in that the monomeric units (a) each have two carboxylate groups.

### Claim 5 (depends on 4)

The composition according to claim 4 characterized in that the monomeric units (a) each are succinic acid residues.

### Claim 6 (depends on 1)

The composition according to claim 1 characterized in that the monomeric units (b) each have one lipophilic side chain.

### Claim 7 (depends on 6)

The composition according to claim 6 characterized in that the lipophilic side chain is a linear hydrocarbon chain.

### Claim 8 (depends on 7)

The composition according to claim 7 characterized in that the hydrocarbon chain exhibits 4 to 20 carbon atoms.

### Claim 9 (depends on 1)

The composition according to claim 1 characterized in that the at least one copolymer exhibits a Mw in the range of 2,000 to 20,000 g/mol.

### Claim 10 (depends on 1)

The composition according to claim 1 characterized in that it further comprises an amine and/or a metal hydroxide.

### Claim 11 (depends on 10)

The composition according to claim 10 characterized in that it exhibits a weight ratio of the amine and/or metal hydroxide and the at least one copolymer in the range of 0.3:1 to 3.0:1.

### Claim 12 (depends on 1)

The composition according to claim 1 characterized in that it exhibits a weight ratio of the at least one oil and the at least one copolymer in the range of 100:1 to 10:1.

### Claim 13 (depends on 1)

A method for producing a composition according to claim 1 characterized in that the following steps are conducted successively:
i) at least one kind of radically polymerizable monomers (a) each having at least one hydrophilic group and at least one kind of radically polymerizable monomers (b) each having at least one lipophilic side chain are mixed in an organic solvent and/or base oil,
ii) the resulting mixture is brought to a temperature in the range of 15 to 140° C.,
iii) a radical initiator is added dropwise over a time period of 2 to 8 hours to form the at least one copolymer
iv) the reaction is continued for 1 to 8 hours,
v) optionally the organic solvent is removed and
vi) the so obtained at least one copolymer is added to an aqueous composition comprising at least one lipophilic compound.

### Claim 14 (depends on 13)

The method according to claim 13 characterized in that the organic solvent comprises toluene, whereas the base oil is a naphthenic base oil consisting of approximately 8 to 10 wt. % of aromatic hydrocarbon (Ca), approximately 43 to 47 wt. % of naphthenic hydrocarbon (Cn) and approximately 45 to 47 wt. % of paraffinic hydrocarbon (Cp) (adding up to 100 wt. %).

### Claim 15 (depends on 14)

The method according to claim 14 characterized in that the mixture in step i) comprises toluene as organic solvent and a naphthenic oil consisting of approximately 8 to 10 wt. % of aromatic hydrocarbon (Ca), approximately 43 to 47 wt. % of naphthenic hydrocarbon (Cn) and approximately 45 to 47 wt. % of paraffinic hydrocarbon (Cp) (adding up to 100 wt. %) as base oil with a weight ratio of less than 0.5:1.

### Claim 16 (depends on 13)

The method according to claim 13 characterized in that the overall concentration of the monomers (a) and the monomers (b) in step i) is in the range of 20 to 70 wt. %.

### Claim 17 (depends on 1)

A method comprising applying a fluid comprising a composition according to claim 1 to a hard surface as a metal working fluid, lubricant, rust preventer, cleanser and/or permanent coating.

### Claim 18 (depends on 17)

The method according to claim 17 wherein the hard surface is a metallic surface and the fluid is applied as a metal working fluid.