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Benzene-free and ketone-free modified acrylate resin and preparation method thereof

A technology of acrylate and polyhydroxy acrylate, which is applied in the field of polymer chemistry and can solve problems such as harmful to health, failure to meet anti-adhesion performance, and environmental pollution

Active Publication Date: 2014-09-10
苏州博莱特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional solvent-based acrylic resins use benzene and ketones as solvents, which pollute the environment and are harmful to health. They have been eliminated and are gradually replaced by environmentally friendly alcohol-soluble acrylic resins.
However, due to its inherent "hot sticky and cold brittle" properties, acrylate resins have poor anti-blocking properties (easy to stick back), making them only suitable for the preparation of inner printing inks, and cannot meet the resistance to printing on the outermost layer of the substrate. The need for surface printing inks with higher requirements for adhesion performance and adhesion fastness
For example, the patent document CN102718916A discloses a kind of alcohol water-soluble tertiary carbonic acid vinyl ester modified acrylic resin, by introducing tertiary carbonic acid vinyl ester to modify the acrylate resin, the adhesion fastness of the ink to the substrate is improved, and the solution The problems of sticking back and composite film white spots have been eliminated, but this resin is still only suitable for interior printing composite inks, and cannot meet the performance requirements of surface printing inks

Method used

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  • Benzene-free and ketone-free modified acrylate resin and preparation method thereof
  • Benzene-free and ketone-free modified acrylate resin and preparation method thereof
  • Benzene-free and ketone-free modified acrylate resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1 Preparation of modified acrylate A

[0082] The first step: take by weighing respectively the bisphenol A epoxy resin (0.7mol epoxy group) of 132 gram epoxy value 0.53eq / 100g, 151.4 gram acrylic acid (2.1mol carboxyl, mol ratio is epoxy group: carboxyl=1 : 3), 150 grams of ethyl acetate, add in the reactor that stirrer, reflux condenser and heating temperature control are housed, react at 70~90 ℃ for 5 hours, add 134 grams of ethyl acetate to dilute, make monomer content is a 50% solution of polyhydroxy acrylate I.

[0083] Step 2: Weigh 111.2 grams (1mol NCO) of isophorone diisocyanate (IPDI) and 30 grams of ethyl acetate solvent respectively, and add to the reactor equipped with stirring device, reflux condenser, heating control temperature and dropping device In the process, slowly add 18.4 grams (0.4mol hydroxy) ethanol, 0.1 grams of dibutyltin dilaurate catalyst, and 20 grams of ethyl acetate mixture by dropwise addition, and finish the dropwise addit...

Embodiment 2

[0085] Embodiment 2 Preparation of modified acrylate B

[0086] The first step: take by weighing 100 grams of 1,4 butanediol diglycidyl ether (0.7mol epoxy group) and 101 grams of acrylic acid (1.40mol carboxyl group) with an epoxy value of 0.7eq / 100g respectively, and the molar ratio is epoxy group : carboxyl group=1: 2), 100 gram n-propyl acetates, add in the reactor that stirrer, reflux condenser and heating temperature control are housed, react 4 hours at 90~100 ℃, add 101 gram n-propyl acetates to dilute , to prepare a polyhydroxy acrylate solution II with a monomer content of 50%.

[0087] The second step: Weigh 111.2 grams (1mol NCO) of isophorone diisocyanate (IPDI) and 30 grams of n-propyl acetate solvent respectively, and add a reaction reaction equipped with a stirring device, a reflux condenser, a heating control temperature and a dropping device In the container, slowly add 51 grams (0.5mol of hydroxyl) isopropanol and 0.1 gram of dibutyltin dilaurate catalyst, 2...

Embodiment 3

[0090] Example 3 Preparation of modified acrylate C

[0091] The first step: take by weighing 100 grams of neopentyl glycol diglycidyl ether (0.65mol epoxy group) and 140 grams of methacrylic acid (1.63mol carboxyl group) with an epoxy value of 0.65eq / 100g respectively, and the molar ratio is epoxy group : carboxyl=1: 2.5), 100 gram butyl acetates, add in the reactor that stirrer, reflux condenser and heating temperature control are housed, react 3 hours at 100~120 ℃, add 140 gram n-propyl acetates to dilute, A polyhydroxyacrylate solution III with a monomer content of 50% was prepared.

[0092]Second step: take 84.1 grams (1mol NCO) 1,6-hexamethylene diisocyanate (HDI) and 30 grams of ethyl acetate solvent respectively, add stirring device, reflux condenser, heating temperature control and dropping device In the reactor, slowly add 27.6 gram (0.6mol hydroxy) ethanol and 0.1 gram of dibutyltin dilaurate catalyst, 20 gram of ethyl acetate mixtures by dropwise addition, finish ...

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Abstract

The invention provides a benzene-free and ketone-free modified acrylate resin. The modified acrylate resin has excellent properties of good blocking resistance, wide range of applicable base materials, strong adhesion, high glossiness and the like; in the process of preparing ink, alcohol and / or ester solvents are adopted, and solvents such as benzene and ketone which pollute the environment are not added, so that the modified acrylate resin has the advantage of environmental friendliness.

Description

technical field [0001] The invention relates to a benzo- and ketone-free modified acrylate resin and a preparation method thereof. Specifically, the invention relates to a benzo- and ketone-free modified acrylate resin for surface printing ink and a preparation method thereof, belonging to the field of polymer chemistry. Background technique [0002] As the main component of the ink, the resin plays a decisive role in the performance of the ink and the applicable solvent. Acrylate resins are used in the preparation of inks because of their light color, high transparency, and good weather resistance. The acrylic resins currently used in the preparation of inks are mainly water-based (water-based), photocurable and solvent-based acrylate resins. [0003] Water-based (water-based) acrylate resins are mainly used for water-absorbent paper printing due to the high surface tension of water and slow drying speed, but are not suitable for high-speed printing with plastic as the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08F283/00C08F220/18C08F220/14C08F220/28C08F218/08C09D11/107
CPCC09D11/107C08F283/006C08G18/282C08G18/67C08F220/18C08F220/1804C08F220/1802
Inventor 李光明蒋易君伍华阳郭玮
Owner 苏州博莱特新材料有限公司
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