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Bonding compositions

A technology of polymers and compounds, applied in the direction of bonding method of adhesive heating, bonding method of fabric, surface pretreatment, etc., can solve problems such as performance degradation, reinforcement fiber abrasion, reinforcement fiber and rubber matrix peeling, etc.

Active Publication Date: 2012-07-18
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to reduced performance, debonding between the reinforcing fibers and the rubber matrix, and abrasion of the reinforcing fibers

Method used

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Experimental program
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Embodiment

[0181] Compounds A, B, C, D and E (above) were synthesized according to the following experimental procedure and as shown in the following reaction schemes.

[0182] Nitrosylation reaction (1): (below) carried out as described in J.J.D'Amico, C.C.Tung and L.A.Walker, J.Am.Chem.Soc., 5957 (1959):

[0183]

[0184] Reaction (2): Gamma-isocyanatopropyltriethoxysilane (GE Bayer Silicones A-1310) (2.35 g, 9.5 mmol) was dissolved in 10 mL of anhydrous THF in a 50 mL round bottom flask. The reaction flask was flushed with nitrogen and charged with N,N-bis-(2-hydroxyethyl)-4-nitroso-aniline (2 g, 9.5 mmol), followed by a catalytic amount of dibutyltin dilaurate (1.5 μmol ). The reaction was refluxed for an additional 2 hours under nitrogen. Isocyanate consumption was monitored using infrared spectroscopy (2275cm -1 ). The solvent was removed under reduced pressure to afford the product in quantitative yield.

[0185]

[0186] Reaction (3): Gamma-isocyanatopropyltrimethoxysila...

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Abstract

Methods for bonding polymeric substrates to hydroxylated surfaces such as glass are disclosed. The polymeric substrates may be elastomeric substrates such as a natural or synthetic rubber. The method may comprise applying a compound comprising at least one alkoxy silane moiety and at least one moiety selected from a nitrosoaromatic or a nitrosoaromatic precursor to one of the substrates. The nitrosoaromatic moiety may be a nitrosobenzene. The nitrosoaromatic precursor may be a nitrosobenzene precursor, such as at least one of a quinone dioxime or a quinone oxime. Novel primers and compounds suitable for use in the bonding process are also disclosed.

Description

technical field [0001] Curable compositions, such as adhesive compositions, for bonding polymeric substrates to hydroxylated surfaces are disclosed. In particular, adhesive compositions suitable for use in polymer-to-glass, eg elastomer-to-glass eg rubber-to-glass bonding applications are provided. One aspect of the present invention provides novel compounds suitable for use in adhesive compositions suitable for rubber to glass bonding applications. Background technique [0002] Reinforced composites play an important role in the manufacture of high-performance products that require light weight but are strong enough to withstand severe loads and operating conditions. Common reinforcement materials include wood, glass, metal, quartz, and carbon fiber. Composite materials reinforced with such materials can be used in the manufacture of many structural materials such as aerospace components and racing car bodies. [0003] Glass per unit weight represents one of the stronges...

Claims

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Application Information

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IPC IPC(8): C08G77/04C07F7/10C09J5/02C09J11/06
CPCC08K3/34C09J2400/143C08K5/32C09J2421/006C07F7/1836C08K5/5419C08K3/22C09J5/06C08K5/544C09J2407/006C08K5/33C08G77/045Y10T428/31663Y10T428/31612Y10T442/3911C07F7/1804C08J3/00C07F7/10C08G77/04C09J5/02
Inventor N·费伊E·M·弗莱明R·K·韦弗林豪斯D·诺兰B·J·科尼夫赛
Owner HENKEL KGAA
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