Adhesive composition for oil silicone rubber

Patent metadata

Field	Value
Publication number	US-10450430-B2
Application number	US-201515522010-A
Country	US
Kind code	B2
Filing date	Oct 23, 2015
Priority date	Oct 29, 2014
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

An adhesive composition for oil bleeding silicone rubber comprising any of: (A) an alcohol-based organic solvent solution adding 45 to 120 parts by weight of organometallic compound and 2 to 10 parts by weight of water, based on 100 parts by weight of vinyltrialkoxysilane, (B) a solution in which 5 parts by weight or less, preferably 1 to 5 parts by weight, of 3-aminopropyltrialkoxysilane is added to the above alcohol-based organic solvent solution (A), or (C) a solution in which uncrosslinked silicone rubber dissolved beforehand in an organic solvent is added to the above alcohol-based organic solvent solution (A) or (B) in which the amount of the organometallic compound is changed to 5 to 20 parts by weight, at a ratio of 0.1 to 5 wt. %, based on the total solid matters of vinyltrialkoxysilane and the organometallic compound. The adhesive composition has excellent adhesion to various substrates, including metals.

First claim

The invention claimed is:

1. An adhesive composition for oil bleeding silicone rubber comprising vinyltrialkoxysilane, an organic titanium compound, water, and 3-aminopropyltrioxysilane in an alcohol-based organic solvent solution, wherein the amount of organic titanium compound is 5 to 20 parts by weight, the amount of water is 2 to 10parts by weight, and the amount of 3-aminopropyltrialkoxysilane is 0 to 5 parts by weight or less, based on 100 parts by weight of vinyltrialkoxysilane, and wherein uncrosslinked silicone rubber is included in the alcohol-based organic solvent solution at a ratio of 0.1 to 5 wt. %, based on the total solid matters of vinyltrialkoxysilane and the organic titanium compound.

2. The adhesive composition for oil bleeding silicone rubber according to claim 1 , wherein the organic solvent in which uncrosslinked silicone rubber is dissolved beforehand is an aromatic hydrocarbon solvent.

3. The adhesive composition for oil bleeding silicone rubber according to claim 1 , wherein the organic titanium compound is tetra-n-butyl titanate or a dimer thereof.

4. The adhesive composition for oil bleeding silicone rubber according to claim 1 , wherein the oil bleeding silicone rubber is silicone oil-compounding silicone rubber.

5. The adhesive composition for oil bleeding silicone rubber according to claim 1 , wherein the composition is aged under temperature conditions of 20 to 50° C. for 24 hours or more.

6. The adhesive composition for oil bleeding silicone rubber according to claim 1 , wherein the composition is used for bonding between a metal, a thermoplastic resin, or a glass-epoxy resin prepreg, and oil bleeding silicone rubber.

7. An integrally molded product of a metal, a thermoplastic resin, or a glass-epoxy resin prepreg, and oil bleeding silicone rubber, which are bonded and integrated with each other using the adhesive composition for oil bleeding silicone rubber according to claim 1 .

Assignees

• Nok Corp

Inventors

• Sano Shinichiro
• YOSHITAKE Isao
• Abe Katsumi

Classifications

• C09J183/00 Primary

  Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers · CPC title

• C08J2383/04

  Polysiloxanes · CPC title

• C09J4/00

  Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16} · CPC title

• B32B15/092

  comprising epoxy resins · CPC title

• C09J11/06 Primary

  organic · CPC title