Chromogenic epoxy resin and method thereof

A technology for epoxy resin and curing epoxy resin, which is applied in the field of dyes and can solve problems such as difficulty in detecting completeness

Inactive Publication Date: 2015-11-25
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since curable epoxies and hardeners are often similar in color and viscosity, completeness of mixing can be difficult to detect

Method used

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  • Chromogenic epoxy resin and method thereof
  • Chromogenic epoxy resin and method thereof
  • Chromogenic epoxy resin and method thereof

Examples

Experimental program
Comparison scheme
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example

[0146] The following examples further illustrate the advantages and embodiments of the present invention, but the specific materials and their amounts as well as other conditions and details mentioned in these examples should not be construed as improper limitations on the present invention. Unless otherwise specified, in these examples, all percentages, ratios and ratios are by weight.

[0147] Unless otherwise specified or obvious, all materials can be purchased from, for example, Sigma-Aldrich Chemical Company; (Milwaukee, Wisconsin (Milwaukee, WI)), or are known to those skilled in the art.

[0148] Table 1 Materials

[0149]

[0150]

[0151] Component A (amine-based curing agent) was prepared using a mixer (sold by Hauschild Engineering of Hamm, Germany under the trade name "DAC150FVSPEEDMIXER") at 3500rpm to mix 20g of TTD with 10wt .% (2.0g) silica is mixed for 2 minutes. Subsequently, the dye is added step by step, 5mg each time, until a good color visual impression can b...

example 18

[0164] Example 18: The preparation of component C listed above was prepared using dye 10 in an amount of 0.25 wt%. The above-listed component D is prepared using 0.18 wt% dye 8.

example 19

[0165] Example 19: The preparation of component C listed above was prepared using dye 13 in an amount of 0.25 wt%. The above-listed component D is prepared using 0.18 wt% dye 8.

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Abstract

Described herein is an epoxy composition comprising: a first component comprising an amine-based curing agent and a first dye, having a first color; and a second component comprising a curable epoxy resin and a second dye, having a second color. Also described herein is a shelf-life-indicating composition comprising: an amine-based curing agent; and a dye selected from (i) a cationic triarylmethane dye, wherein the cationic triarylmethane dye reversibly reacts with a primary amine; (ii) a halochromic dye having a color transition range between 7-12 when measured in an aqueous solution; or (iii) combinations thereof.

Description

Technical field [0001] The present invention describes a dye at least in the curing agent of an epoxy resin system. In one embodiment, an epoxy curing agent component composition indicating shelf life is described, the composition comprising an amine-based curing agent and a dye. In another embodiment, a two-component epoxy resin is described, the epoxy resin comprising: a first component comprising an amine-based curing agent and a first dye; and a second group The second component includes a curable epoxy resin composition and a second dye. Background technique [0002] The commercial two-component epoxy resin system is packaged in a two-barrel system that will dispense the right amount of curable epoxy resin and epoxy curing agent. The dispensed curable cyclic resin and the curing agent are then mixed and contacted, and the curing agent reacts with the curable epoxy resin to be cured. [0003] In order to obtain the maximum performance characteristics of the epoxy resin syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/50C08J3/00C08L63/00
CPCC08L63/00C08G59/50C08J3/248C08J2363/00C08J2385/02C08K5/23C08K5/42C08K5/46C08K5/47C09J163/00
Inventor 阿德里安·T·容
Owner 3M INNOVATIVE PROPERTIES CO
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