Metal Surface Treatment Agent for Promoting Rubber-Metal Adhesion

• US 20080023669A1
• Filed: 06/15/2005
• Published: 01/31/2008
• Est. Priority Date: 06/25/2004
• Status: Abandoned Application

• Current Assignee: Bridgestone Corporation, Nippon Light Metal Company Limited (Nippon Light Metal Holdings Co., Ltd.)
• Original Assignee: Bridgestone Corporation, Nippon Light Metal Company Limited (Nippon Light Metal Holdings Co., Ltd.)
• Inventors: Iida, Kazunori, Suzuki, Jun, Imori, Toru
• Application Number:
  US11/629,948
• Publication Number:
  US 20080023669A1
• Time in Patent Office: Days
• US Class Current: 252/193
• CPC Class Codes: C08G 77/26 nitrogen-containing groups
• CPC Class Codes: C08K 5/16 Nitrogen-containing compounds C08K5/0091 takes precedence
• CPC Class Codes: C09D 183/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• CPC Class Codes: C09D 4/00 Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
• CPC Class Codes: C09D 7/63 organic
• CPC Class Codes: C23C 2222/20 Use of solutions containing silanes
• CPC Class Codes: D07B 1/0666 the wires being characterised by an anti-corrosive or adhesion promoting coating

Abstract

A surface treatment agent for metal is provided which is capable of improving the strength of adhesion between metal and rubber. A metal surface treatment agent for promoting adhesion between the metal and rubber comprising a cobalt or other metal compound and a silane coupling agent having a metal-capturing functional group in the molecule, and a metal surface treatment agent for promoting adhesion between the metal and rubber comprising a silane coupling agent having in the molecule a metal-capturing functional group with a captured metal such as a cobalt. The metal-capturing functional group is preferably an amino, amide or azole group.

Claims

1. A metal surface treatment agent for promoting adhesion between rubber and metal, comprising:

at least one silane coupling agent having at least one metal-capturing functional group in the molecule and selected from among the following silane coupling agents (a) and (b);

(a) silane coupling agents having an azole group and obtained by a reaction of an azole compound with an epoxy-silane compound and

(b) silane coupling agents consisting of γ

-aminopropyltriethoxysilane, γ

-aminopropyltrimethoxysilane, N-methylaminopropylmethyldimethoxysilane, N-methylaminopropyltrimethoxysilane, urea propyltriethoxysilane, urea propyltrimethoxysilane, bis(trimethoxysilylpropyl)amine, bis[3-(trimethoxysilyl)propyl]ethylenediamine, γ

-mercaptopropyltrimethoxysilane; and

at least one metal compound selected from the group consisting of cobalt, nickel, zinc, copper, tin, palladium, silver, molybdenum, barium, magnesium, calcium, strontium, beryllium and cerium compounds.

6. The metal surface treatment agent for promoting adhesion between rubber and metal according to claim 1, wherein the metal to be bonded to rubber is steel cord.

7. A rubber-metal composite using a metal treated with the surface treatment agent according to claim 1.

2. (canceled)

3. (canceled)

4. (canceled)

5. (canceled)