# US 2010/0168306 A1 · Rubber Composition Exhibiting Improved Adhesion to a Metal Reinforcement

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- Number: US 2010/0168306 A1
- Document ID: US20100168306A1
- Status: Published application
- Kind: A1
- Application number: 12/628,935
- Filed: 2009-12-01
- Published: 2010-07-01
- Earliest claimed: 2004-04-30
- Assignees: Michelin Recherche et Technique S.A.
- Inventors: Fanny BARBOTIN; Jean-Luc Cabioch; Marc Greiveldinger; Gérard Pouzet
- Web page: https://patentgrep.com/patent/US20100168306A1

## CPC

- B60C 1/00: Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C 15/06: Flipper strips, fillers, or chafing strips {and reinforcing layers for the construction of the bead}
- C08K 5/0091: {Complexes with metal-heteroatom-bonds}
- C08K 5/098: Metal salts of carboxylic acids
- B60C 2009/0021: {Coating rubbers for steel cords}
- Y10T 428/12562: Elastomer
- B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A rubber composition usable for manufacturing a metal/rubber composite and capable of adhering to a metallic reinforcing member, comprising at least one diene elastomer, a reinforcing filler, a cross-linking system and between 0.1 and 10 phr of acetylacetonate of a lanthanide.

## Claims

### Claim 1

A rubber composition usable for manufacturing a metal/rubber composite and capable of adhering to a metallic reinforcing member, comprising at least one diene elastomer, a reinforcing filler, a cross-linking system and between 0.1 and 10 phr of acetylacetonate of a lanthanide.

### Claim 2 (depends on 1)

The composition according to claim 1, wherein the diene elastomer is natural rubber or a synthetic polyisoprene having an amount of cis-1,4 bonds greater than 90% (mole %).

### Claim 3 (depends on 1)

The composition according to claim 1, wherein the reinforcing filler is carbon black.

### Claim 4 (depends on 1)

The composition according to claim 1, wherein the reinforcing filler is silica.

### Claim 5 (depends on 1)

The composition according to claim 1, wherein the amount of reinforcing filler is between 30 phr and 150 phr.

### Claim 6 (depends on 1)

The composition according to claim 1, wherein the lanthanide is selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, erbium and mixtures of these rare earths.

### Claim 7 (depends on 6)

The composition according to claim 6, wherein the lanthanide is neodymium.

### Claim 8 (depends on 1)

The composition according to claim 1, wherein the amount of acetylacetonate of the lanthanide is between 0.2 and 5 phr.

### Claim 9 (depends on 1)

The composition according to claim 1, wherein said composition further comprises a cobalt compound.

### Claim 10 (depends on 9)

The composition according to claim 9, wherein the cobalt compound is selected from the group consisting of abietates, acetylacetonates, naphthenates, resinates and mixtures of such compounds.

### Claim 11 (depends on 10)

The composition according to claim 10, wherein the amount of cobalt compound is between 0.1 and 10 phr.

### Claim 12 (depends on 11)

The composition according to claim 11, wherein the amount of cobalt compound is between 0.2 and 5 phr.