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Cyanoacrylate Composition

A cyanoacrylate and composition technology, which is applied in the field of allyl-cyanoacrylate-containing compositions, can solve problems such as elevation

Active Publication Date: 2018-07-10
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Despite these efforts, there remains a long-standing but unfulfilled desire to obtain more robust properties from cyanoacrylate compositions, especially under conditions of elevated relative humidity.

Method used

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  • Cyanoacrylate Composition
  • Cyanoacrylate Composition
  • Cyanoacrylate Composition

Examples

Experimental program
Comparison scheme
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Embodiment

[0064] 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.

[0065] Initially, various aromatic and hydrogenated anhydrides were evaluated in ethyl cyanoacrylate compositions each containing 6.5% by weight PMMA, 0.1% by weight crown ether, and 7ppm BF 3 , to form Samples B to E (with Sample A containing no anhydride as a control). Formulation details are listed in Table 1 below.

[0066] Table 1

[0067]

[0068] A variety of aromatic and hydrogenated aromatic anhydrides were also evaluated in allyl cyanoacrylate compositions ("allyl CA" or "ACA"), where each of the allyl cyanoacrylate combinations All contain 6.5% by weight of PMMA, 0.1% by weight of crown ether, and 7ppm of BF 3 , to form samples F to J. Sample E was used as a control. Formulation detail...

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Abstract

The present invention provides allyl-cyanoacrylate-containing compositions containing an aromatic anhydride component that impart improved moisture resistance when cured.

Description

technical field [0001] The present invention provides allyl-cyanoacrylate-containing compositions containing an aromatic anhydride component that impart improved moisture resistance when cured. 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", S.R. Hartshorn, ed., Plenun Press, New York, pp. 249-307 (1986). [0003] In the industrial market, the moisture durability of cured cyanoacrylate adhesives leaves room for improvement. In fact, poor moisture resistance is characteristic of cyanoacrylate-based tissue adhesives, such as those sold under the trade name INDERMIL, since such ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/00C08F220/66C08F222/04C08F222/32C08F222/08
CPCC08F220/66C08F222/06C09J4/00C08F222/322C09J167/06
Inventor C·戈夫M·费伦J·格思里C·达菲S·霍恩C·德斯波特波洛
Owner HENKEL KGAA