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Heat vulcanization adhesive for bonding vulcanized rubber or thermoplastic rubber with hard panel

A technology of thermoplastic rubber and vulcanized rubber, which is applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., and can solve problems such as health hazards, storage difficulties, and high toxicity

Active Publication Date: 2013-04-17
SHANGHAI TONTEE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyisocyanates such as triphenylmethane triisocyanate and thiophosphoric acid tris(4-phenylisocyanate) are used as adhesives, but storage is difficult because they react with moisture in the air at room temperature
And polyisocyanate monomers are mostly toxic, which will cause great harm to human health when used.

Method used

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  • Heat vulcanization adhesive for bonding vulcanized rubber or thermoplastic rubber with hard panel
  • Heat vulcanization adhesive for bonding vulcanized rubber or thermoplastic rubber with hard panel
  • Heat vulcanization adhesive for bonding vulcanized rubber or thermoplastic rubber with hard panel

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Embodiment Construction

[0040] The foregoing description and the following examples are intended to disclose and illustrate the present invention, and the specific amounts and combinations of the ingredients described herein are not intended to limit the scope of the present invention defined by the claims.

[0041] The mononitrosophenol-blocked toluene-2,4-diisocyanate of the present invention was prepared as follows:

[0042] 4-Nitrosophenol-blocked toluene-2,4-diisocyanate: Toluene-2,4-diisocyanate (870.8 g / 5 mol) was solvated in 3,000 ml toluene in a four necked round bottom flask. The reaction flask was flushed with nitrogen and charged with 4-nitrosophenol (123.11 g / 1 mol). The reaction was refluxed for an additional 2 hours at room temperature under nitrogen. Using infrared spectroscopy, monitor the consumption of isocyanate (2,280cm -1 ). The precipitate was filtered off and washed with light petroleum (boiling point 40°-50°C), and the solvent was removed under reduced pressure. 273.5 g o...

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Abstract

The invention discloses a heat vulcanization adhesive for bonding vulcanized rubber or thermoplastic rubber with a hard panel. The heat vulcanization adhesive contains single-nitrosophenol-closed methylbenzene-2,4-diisocyanate, halogenated rubber, metal oxide such as zinc oxide or magnesium oxide, an inertia pigment filler such as carbon black or titanium dioxide, a solvent such as aromatic hydrocarbon, a chloridized solvent or a ketone solvent, a polymaleimide compound such as N,N'-interphenylene bismaleimide or diphenylmethane bismaleimide and a vulcanizer such as sulphur, selenium or tellurium. The heat vulcanization adhesive disclosed by the invention has the greatest characteristic that the single-nitrosophenol-closed methylbenzene-2,4-diisocyanate is contained, so that an aromatic polynitro compound easy to sublimate or a highly toxic polyisocyanate monomer is not used; and the heat vulcanization adhesive has 'preheating-resistant' performance or is applicable to requirements of an injection moulding process.

Description

[0001] technical field [0002] The present invention relates to a thermal vulcanization adhesive containing mononitrosophenol-blocked toluene-2,4-diisocyanate, which is used for bonding vulcanized rubber or thermoplastic rubber to hard plates. [0003] technical background [0004] A number of adhesive compositions have been developed to provide bonding to various materials or objects such as elastomeric substrates and metal surfaces. However, most of these rubber-metal adhesives contain aromatic polynitroso compounds or polyisocyanate monomers. [0005] For example, CN200580019624.7 of LORD Company discloses a rubber-metal adhesive whose solid is dispersed in a volatile liquid carrier, the adhesive contains dispersed solid particles, and the solid particles contain nitroso compounds, halogenated polyolefins, Acid neutralizer and 5-35 wt% inert incompressible spherical particles. CN93114420.5 discloses a thermal vulcanization adhesive containing halogen-containing polyol...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J11/04
Inventor 姚晓英
Owner SHANGHAI TONTEE NEW MATERIAL TECH
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