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Epoxide-based composition

An epoxide, polyepoxide technology, applied in the direction of epoxy glue, adhesive type, adhesive, etc., can solve the odor, can not provide working time, can not apply multi-layer and non-transparent film / composite material and other problems, to achieve the effect of good adhesion

Inactive Publication Date: 2010-09-08
AIR PROD & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The industry in this field does not provide adequate working time (life after opening), odor or toxicity issues due to chemicals used in the adhesive (e.g. mercaptans, acrylonitrile), or due to curing methods (e.g. UV curing) and cannot be applied to multilayer and non-transparent films / composites

Method used

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  • Epoxide-based composition
  • Epoxide-based composition
  • Epoxide-based composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074]Epikote 828 Epoxy Resin (16g), Epodil 757 Epoxy Resin (4g) and Curing Agent Formulation Example A (2g) were weighed in a paper cup as shown in Table 2 and mixed thoroughly. The initial viscosity of the mixture was tested and the viscosity after 16 hours was also measured. In addition, samples for DSC testing were prepared from said samples immediately after mixing as described above, and at the same time, samples for shear binding testing were produced. The results are shown in Table 2.

Embodiment 2-18

[0076] A curing agent was synthesized by changing the epoxy resin and raw materials and the ratio between them, and the same test as in Example 1 was carried out on the curing agent. The results are shown in Tables 2 and 3.

[0077]

[0078]

[0079] In the following, comparative examples are carried out on epoxy-based compositions for repairing underground pipes described in the prior art, the results of which clearly demonstrate the superiority of the present invention.

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Abstract

An epoxide-based composition comprising a combination of an epoxide and a curing agent, wherein the epoxide is selected from a phenyl glycidyl ether-based polyepoxide and the curing agent is a salt compound composed of a N-alkanol piperidine and a carboxylic acid.

Description

technical field [0001] The present invention relates to a curable epoxy-based composition. More specifically, the present invention relates to a curable epoxy-based composition that is liquid and has a longer pot life. Background technique [0002] For an epoxy composition prepared by combining an epoxy and a curing agent, when it is in the pre-curing stage, it is preferred that its viscosity be within a long period of time after the epoxy and curing agent are mixed Basically no change. This is because such a combination facilitates the next step in the intended use, such as coating, lamination, injection, pouring or infusion of the composition. Compositions having such properties are a desirable embodiment so that they can smoothly pass through the subsequent "curing" stage. [0003] When the mixture of epoxy component and polyamine-based curing agent is usually left for a long time, a phenomenon occurs here, that is, a reaction occurs between these materials, and the vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/64C08G59/20C09J163/02
CPCC08G59/22C08L63/00C08G59/4207C08G59/506C08L2666/22C08K5/3435
Inventor 千叶康夫A·H·阿布多拉扎克森本裕也
Owner AIR PROD & CHEM INC
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