Cyanoacrylate compositions

A cyanoacrylate and cyanoacrylate-containing technology are applied in the field of cyanoacrylate-containing compositions, and can solve problems such as unsatisfactory

Active Publication Date: 2015-01-14
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although there have been prior art and efforts to improve the heat resistance of cyanoacrylate compositions so far, there is no need to provide such heat resistance to the cured reaction product of the cyanoacrylate composition without the use of cyanoacrylate. Compromises in terms of fixation time, stability or color of the composition itself remain long unmet needs

Method used

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  • Cyanoacrylate compositions
  • Cyanoacrylate compositions
  • Cyanoacrylate compositions

Examples

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Embodiment

[0059] All samples were prepared by mixing the components together for a time sufficient to ensure that the components were approximately homogeneous. Typically, about 30 minutes should be sufficient, although this will of course depend on the amounts of components used.

[0060] Initially, various maleic anhydride derivatives were evaluated in ethyl cyanoacrylate compositions, the results of which are given in Table 1 below. All maleic anhydride derivatives except 2,3-dimethylmaleic anhydride resulted in unacceptable changes in cure speed (or fixation time) or color development in the composition.

[0061] Table 1

[0062]

[0063]

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Abstract

Cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, a hydrogenated anhydride and optionally a benzonitrile, are provided. Cured products of the inventive cyanoacrylate compositions demonstrate improved heat resistance without compromising fixture time, stability or color.

Description

technical field [0001] The present invention relates to cyanoacrylate-containing compositions which, in addition to the cyanoacrylate component, comprise hydrogenated phthalic anhydride and optionally benzonitrile. The cured products of the cyanoacrylate compositions of the present invention exhibit improved heat resistance without compromising on fix time, stability or color. Background technique [0002] Cyanoacrylate adhesive compositions are well known and widely used as fast-curing, instant adhesives with a wide variety of uses. see H.V.Coover, D.W.Dreifus and J.T.O'Connor in Handbook of Adhesives "Cyanoacrylate Adhesives", 27, 463-77, I. Skeist, ed., Van Nostrand Reinhold, New York, Third Edition (1990). see also G.H. Millet in Structural Adhesives: Chemistry and Technology "Cyanoacrylate Adhesives" in S.R. Hartshorn, ed., Plenun Press, New York, pp. 249-307 (1986). [0003] U.S. Patent 4,440,910 (O'Connor) prospectively proposes to use elastomeric ( which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/00
CPCB29C65/484C09J4/00C09J133/18
Inventor P·黑德曼E·沃德W·哈利D·穆尔M·费伦C·达菲
Owner HENKEL KGAA
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