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Anaerobically curable composition

A curable composition and composition technology, applied in the field of anaerobic curable composition, can solve problems such as unsatisfactory compositions

Inactive Publication Date: 2008-07-02
THREEBOND FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As mentioned above, an anaerobic curable composition that can be quickly cured with an inert metal without sacrificing storage stability is desired, but a satisfactory composition has not yet been obtained

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1、2

[0028] 50 parts by weight of 2-hydroxyethyl methacrylate (HEMA) and 50 parts by weight of 2,2-bis[4-(methacryloyloxyethoxy)phenyl]propane as the component (a) were used as What mixed 1 weight part of cumyl hydroperoxides of (b) component, and 1 weight part of o-sulfonyl benzimides as (c) component was used as a matrix resin. An anaerobic curable composition was prepared by adding a copper complex (EDTA·2Na·Cu) of ethylenediaminetetraacetic acid disodium salt in an amount shown in Table 1 as the component (d) to 100 parts by weight of the matrix resin. . The following evaluation experiments were performed on each of the obtained compositions.

[0029] Curing time:

[0030] Apply 1 drop of each composition obtained above to the threaded portion of a JIS B1180 glossy chromate hexagon bolt (M10, P1.5×20mm), and turn the JIS B1180 glossy chromate hexagon nut at 0 N·m Fasten it to the middle of the bolt, place it in an environment of 25°C and 40% (respectively referring to temper...

Embodiment 8～14 and comparative example 3、4

[0037] Except adding the iron complex compound (DTPA·Na·Fe) of diethylenetriaminepentaacetic acid sodium salt in the amount shown in Table 2 instead of EDTA·2Na·Cu as the component (d), the same as in Example 1 to prepare anaerobically curable compositions. The same evaluation test as in Example 1 was implemented for each of the obtained compositions. The results are shown in Table 2.

[0038]

Embodiment 15～19 and comparative example 5

[0040] In Examples 15 to 19 and Comparative Example 5, the types of metal ions in the EDTA metal complex were changed. It was prepared in the same manner as in the above-mentioned examples, and in order to adjust the solubility of 0.02 parts by weight of EDTA metal complex to be constant, it was dissolved in 0.2 parts by weight of purified water and then added. As the metal complex of EDTA, the metal complex of Mg, Mn, Fe, Ni, Ca is used or the metal complex of EDTA is omitted and only purified water is used.

[0041] The same evaluation test as in Example 1 was performed on each of the obtained compositions. However, regarding the evaluation of the curing time, 1 drop of each composition was applied to an M10 bolt, the nut was inserted at 0 N·m, and the measurement was performed every 10 minutes. The evaluation results are shown in Table 3. It can be seen from Table 3 that the curing time is significantly improved with and without the addition of EDTA metal complexes.

[0...

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PUM

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Abstract

An anaerobically curable composition comprising (a) a compound having at least one radical-polymerizable functional group in the molecule, (b) an organic peroxide, (c) o-benzoic sulfimide, and (d) a complex of a metal other than alkali metals with ethylenediaminetetraacetic acid or diethylenetriamine- pentaacetic acid. The composition exhibits a remarkably improved curing time even when applied to inactive metals, while the storage stability of the composition is retained.

Description

technical field [0001] The present invention relates to an anaerobic curable composition capable of greatly improving the curing time when an inert metal is used as an adherend while maintaining the same storage stability as conventional anaerobic curable compositions. Background technique [0002] The anaerobic curable composition is a curable composition with (meth)acrylate monomer as the main component, which can not gel for a long time and maintain a liquid state stably when in contact with air or oxygen. The property of rapid curing when air or oxygen is excluded, the composition can be used for bonding, fixing of screws, bolts, etc., fixing of fitting parts, bonding between flange faces, sealing, casting parts Filling of pores generated in the process, etc. [0003] By applying and bonding the curable composition to an adherend, air and oxygen are blocked and removed. The anaerobic curable composition is cured by blocking and excluding air or oxygen. The curing time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/44
Inventor 金田光浩
Owner THREEBOND FINE CHEM CO LTD
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