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Epoxy resin composition for luminous characters

An epoxy resin and composition technology, which is applied in the field of epoxy resin compositions for advertising luminous characters, can solve problems such as the influence of luminous characters on the luminous effect, uneven and bright surfaces, and long curing time at room temperature, and achieve long-term luminous effects. Good surface effect and excellent yellowing resistance

Inactive Publication Date: 2013-06-26
DONGGUAN SCI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing epoxy resin hard glue on the market has long curing time at room temperature (more than 10 hours, longer curing time in winter), uneven and bright surface after curing (with ripples, moisture absorption or oily surface, etc.) and poor yellowing resistance Wait for one or more problems, so the luminous effect of the luminous characters will be affected to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, according to 63% bisphenol A type epoxy resin (NPEL128, NANYA ELECTRONIC CO., LTD), 24% polyoxyalkylene amine curing agent (D-230, HUNSMAN CO., LTD), 5% accelerator ( NP-460, FORMOSAN UNION CHEMICAL CORP.), 7.8% diluent (XY501, XINYUAN CHEMICAL CO., LTD) and 0.2% defoamer (BYK350, BYK CORP.) The weight ratio of each component is mixed evenly to prepare An epoxy resin composition was obtained.

Embodiment 2

[0026] Example 2, according to 63% bisphenol A epoxy resin (NPEL128, NANYA ELECTRONIC CO., LTD), 24% modified amine curing agent, 5% accelerator (NP-460, FORMOSAN UNION CHEMICAL CORP.) , 7.8% diluent (XY501, XINYUAN CHEMICAL CO., LTD) and 0.2% defoamer (BYK350, BYK CORP.) The weight ratio of each component is mixed evenly to prepare an epoxy resin composition.

Embodiment 3

[0027] Embodiment 3, by 63% bisphenol A type epoxy resin (NPEL128, NANYA ELECTRONIC CO., LTD), 24% mixed curing agent, 5% accelerator (NP-460, FORMOSAN UNION CHEMICAL CORP.), 7.8% The weight ratio of diluent (XY501, XINYUAN CHEMICAL CO., LTD) and 0.2% defoamer (BYK350, BYK CORP.) was selected and mixed evenly to prepare an epoxy resin composition.

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Abstract

The invention discloses an epoxy resin composition for luminous characters, which consists of the following components in percentage by weight: 20-80% of epoxy resin, 10-40% of a curing agent, 5-10% of an accelerant, 4-10% of a diluent and 0-0.5% of an antifoaming agent, and most preferably 60% of epoxy resin, 24% of a curing agent, 8% of an accelerant, 7.8% of a diluent and 0.2% of an antifoaming agent. The epoxy resin composition disclosed by the invention has short normal-temperature curing time that the epoxy resin composition can be cured in 6-8 hours, can improve the working efficiency, and has the advantages of good surface effect, good luminous effect, excellent yellowing resistance and long-term luminous effect.

Description

technical field [0001] The invention relates to an epoxy resin composition, in particular to an epoxy resin composition applied to advertising luminous characters. Background technique [0002] Existing advertising signboard luminous characters mostly use LED dot luminous electronic screens and carved opaque luminous characters. The biggest disadvantage of dot luminous electronic screens is that it is difficult to express their specific design requirements when encountering standard patterns. In the inactive state, the signboard is not visible and readable. The opaque luminous characters that have already been carved can overcome the above shortcomings and meet market demand. [0003] The opaque luminous characters that have been carved are mainly composed of three parts: the base plate, the light-emitting device and the opaque panel. The opaque panel is mostly composed of the substrate, epoxy hard glue and epoxy resin soft glue. The existing epoxy resin hard glue on the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/50C08G59/20
Inventor 查家华余成杨世斌盛晶
Owner DONGGUAN SCI IND
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