Environmentally-friendly high-temperature-resistant polyester fluorescent pigment

A technology of high temperature resistant polyester and fluorescent pigments, applied in the field of pigments, can solve the problems of easy adhesion, unsuitable for industrial production, strict process control requirements, etc., to improve temperature resistance, maintain vividness, simple and safe process equipment Effect

Inactive Publication Date: 2013-09-11
WANLONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester-type fluorescent pigments with excessive acidity using glycerol as a polyol have very strict process control requirements and are easy to glue together, so they are not suitable for industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Environment-friendly high-temperature-resistant polyester fluorescent pigments, the raw materials and their proportions are: pentaerythritol: phthalic anhydride: isophthalic acid: benzoic acid: sodium isodiacid = 1:0.7:0.02:1.3:0.02. This process adopts the melting method to synthesize the polyester carrier with excessive alcohol, put pentaerythritol phthalic anhydride, isophthalic acid and half of the benzoic acid at one time, heat up to melting, stir and continue to heat up, and start to add sodium isodiacid and the remaining benzene at 130 Formic acid, keep the temperature at 170 degrees for 2 hours, and continue to heat up to 215 degrees for 60 minutes. After the constant temperature is completed, add fluorescent dye while cooling down, disperse for 5 minutes, and discharge. The environment-friendly high temperature resistant polyester fluorescent pigment FZ can be obtained after natural cooling and crushing twice.

Embodiment 2

[0019] Example 2, the environment-friendly high-temperature resistant polyester fluorescent pigment, its raw materials and their proportions are: pentaerythritol: phthalic anhydride: isophthalic acid: benzoic acid: sodium isodiacid = 1: 1.0: 0.2: 1.5: 0.25. This process adopts the process of excessive alcohol in the melting method to synthesize the polyester carrier, put pentaerythritol phthalic anhydride isophthalic acid and half of benzoic acid at one time, heat up to melt and stir to continue to heat up, and start to add sodium isodiacid and the remaining benzene at 170 Formic acid, keep the temperature between 200 degrees for 0.5 hours, and continue to heat up to 250 degrees for 15 minutes. After the constant temperature is completed, the fluorescent dye is added while the temperature is lowered, dispersed for 25 minutes, and the material is discharged. The environment-friendly high temperature resistant polyester fluorescent pigment FZ can be obtained after natural coolin...

Embodiment 3

[0020] Embodiment 3, environment-friendly type high temperature resistant polyester fluorescent pigment, its raw material is to be made up of pentaerythritol, phthalic anhydride, isophthalic acid, benzoic acid, sodium isophthalate, pentaerythritol: phthalic anhydride: isophthalic acid: benzoic acid: isodiacid Sodium=1:0.8:0.15:1.4:0.12. This process adopts the melting method to synthesize the polyester carrier with excessive alcohol, put pentaerythritol phthalic anhydride isophthalic acid and half of benzoic acid at one time, heat up to melt and stir to continue to heat up, and start to add sodium isodiacid and the remaining benzene at 150 Formic acid, keep the temperature at 190 degrees for 1.5 hours, and continue to heat up to 225 degrees for 30 minutes. After the constant temperature is completed, the fluorescent dye is added while the temperature is lowered, dispersed for 15 minutes, and the material is discharged. The environment-friendly high temperature resistant polye...

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PUM

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Abstract

The invention relates to an environmentally-friendly high-temperature-resistant polyester fluorescent pigment. The environmentally-friendly high-temperature-resistant polyester fluorescent pigment is characterized by being prepared from the following raw materials: pentaerythritol, phthalic anhydride, m-phthalic acid, formic acid and disodium m-phthalate, wherein the proportioning ratio of pentaerythritol to phthalic anhydride to m-phthalic acid to formic acid to disodium m-phthalate is 1:(0.7-1.0):(0.02-0.2):(1.3-1.5):(0.02-0.25). The product is free from formaldehyde and forbidden heavy metals; the process equipment is simple and safe; the product is bright in colour, high in concentration, environmentally-friendly, and good in temperature resistance which achieves more than 240 DEG C.

Description

technical field : [0001] The invention relates to pigments that can be used in coatings, inks, and plastics, and are particularly suitable for environmentally friendly high-temperature-resistant polyester fluorescent pigments on PP, PE, PVC, PU, ​​and PS. Background technique [0002] 1. Fluorescent pigments based on p-toluenesulfonamide-melamine-formaldehyde [0003] 2. Polyester-type fluorescent pigments synthesized with ethylene glycol as polyol and dibasic acid [0004] 3. Polyester-type fluorescent pigments with excess acid using glycerol as polyol, and the acids are phthalic anhydride and trimellitic anhydride. [0005] Compare the advantages and disadvantages of several processes: the production process of fluorescent pigments with p-toluenesulfonamide-melamine-formaldehyde as the carrier is relatively backward, causing great environmental pollution, poor temperature resistance and containing formaldehyde, which has great limitations in the application range. Polyes...

Claims

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Application Information

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IPC IPC(8): C09B67/20C09K11/02C08G63/127
Inventor 陈权弟
Owner WANLONG CHEM
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