# US 5,346,634 A · Lubricant composition for hot plastic working

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- Number: US 5,346,634 A
- Document ID: US5346634A
- Status: Granted
- Kind: A
- Application number: 08/017,394
- Filed: 1993-02-12
- Granted: 1994-09-13
- Earliest claimed: 1993-02-12
- Assignees: Nihon Parkerizing Co., Ltd.
- Inventors: Yoshihiko Sawazaki; Yasuo Okumura; Nobuichi Arai
- Web page: https://patentgrep.com/patent/US5346634A

## CPC

- C10M 103/00: Lubricating compositions characterised by the base-material being an inorganic material (containing more than 10% water C10M173/00)
- C10M 103/02: Carbon; Graphite
- C10M 103/06: Metal compounds
- C10M 2201/003: used as base material
- C10M 2201/0403: used as base material
- C10M 2201/041: Carbon; Graphite; Carbon black
- C10M 2201/0413: used as base material
- C10M 2201/042: halogenated, i.e. graphite fluoride
- C10M 2201/0423: used as base material
- C10M 2201/0433: used as base material
- C10M 2201/0603: used as base material
- C10M 2201/0613: used as base material
- C10M 2201/062: Oxides; Hydroxides; Carbonates or bicarbonates
- C10M 2201/0623: used as base material
- C10M 2201/0653: used as base material
- C10M 2201/0663: used as base material
- C10M 2201/08: Inorganic acids or salts thereof
- C10M 2201/0803: used as base material
- C10M 2201/081: containing halogen
- C10M 2201/082: containing nitrogen
- C10M 2201/084: containing sulfur, selenium or tellurium
- C10M 2201/0853: used as base material
- C10M 2201/0863: used as base material
- C10M 2201/087: Boron oxides, acids or salts
- C10M 2201/0873: used as base material
- C10M 2201/1006: used as base material
- C10M 2201/1023: used as base material
- C10M 2201/1033: used as base material
- C10M 2201/1053: used as base material
- C10M 2201/123: used as base material
- C10M 2209/04: containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
- C10M 2209/06: containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
- C10M 2209/062: Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
- C10M 2209/101: Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether derivatives thereof
- C10M 2209/12: Polysaccharides, e.g. cellulose, biopolymers
- C10M 2217/044: Polyamides
- C10M 2217/045: Polyureas; Polyurethanes
- C10N 2040/24: without essential removal of material {, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding}; Punching metal
- C10N 2040/241: {Manufacturing joint-less pipes}
- C10N 2040/242: {Hot working}
- C10N 2040/243: {Cold working}
- C10N 2040/244: {of specific metals}
- C10N 2040/245: {Soft metals, e.g. aluminum}
- C10N 2040/246: {Iron or steel}
- C10N 2040/247: {Stainless steel}
- 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

A lubricant composition useful for hot plastic working of metal material comprises 100 parts by weight of graphite particles and 2 to 100 parts by weight of particles of at least one metal oxide selected from oxides of Sn, Pb, Zn, Ca, Cu and Al and having an average size of 0.01 to 20.0 .mu.m.

## Claims

### Claim 1

A lubricant composition for hot plastic working of metal material comprising 100 parts by weight of graphite particles and 2 to 100 parts by weight of particles of at least one metal oxide selected from the group consisting of tin oxides, calcium oxide, copper oxides and aluminum oxide, and having an average particle size of 0.01 to 20.0 .mu.m.

### Claim 2 (depends on 1)

The lubricant composition as claimed in claim 1, wherein the graphite particles have an average size of 100 .mu.m or less.

### Claim 3 (depends on 1)

The lubricant composition as claimed in claim 1, wherein the aluminum oxide particles have an average size of 0.01 to 2.0 .mu.m.

### Claim 4 (depends on 1)

The lubricant composition as claimed in claim 1, wherein the metal oxide particles have an average size ratio to the graphite particles of 1:1 to 1/100:1.

### Claim 5 (depends on 1)

The lubricant composition as claimed in claim 1, further comprising at least one additive selected from the group consisting of binders, thickeners, antiseptics and surfactants.

### Claim 6 (depends on 5)

The lubricant composition as claimed in claim 5, wherein the binder comprises at least one member selected from the group consisting of boric acid, boron oxide, sodium chloride, proteins, carboxymethyl cellulose, starch polysaccharide, sodium polycarbonate, polyvinyl alcohol-acrylic acid resins, polyvinyl acetate resins, and phenol-formaldehyde resins.

### Claim 7 (depends on 5)

The lubricant composition as claimed in claim 5, wherein the binder is present in an amount of 1 to 50% based on the total weight of the graphite particles and the metal oxide particles.

### Claim 8 (depends on 5)

The lubricant composition as claimed in claim 5, wherein the surfactant comprises at least one member selected from the group consisting of polyoxyethylenealkylethers, polyoxyethylene-fatty acid esters, higher alcohol-sulfuric acid esters, and sodium linoleate.