Freeze-tolerant acrylate pressure-sensitive adhesive, preparation method thereof, and application thereof in production of freeze-tolerant acrylate pressure-sensitive labels

A technology of pressure-sensitive adhesives and acrylates, which is applied in the direction of monocarboxylate copolymer adhesives, adhesives, ester copolymer adhesives, etc., which can solve the problems of error-prone, low labeling efficiency, and failure to meet automatic labeling Machine continuous labeling requirements and other issues, to achieve the effect of stable performance, soft colloid

Active Publication Date: 2016-03-16
GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can only be labeled manually, which is prone to errors, and the labeling efficiency is low; this technology cannot meet the labeling requirements of blood stations and hospitals, and cannot meet the continuous labeling requirements of automatic labeling machines
In particular, it is impossible to affix the original label on the blood bag in the -30°C environment

Method used

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Examples

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Effect test

preparation example Construction

[0065] Another object of the present invention is to provide a kind of preparation method of freeze-resistant acrylate pressure-sensitive adhesive, and this preparation method comprises the following steps:

[0066] 1) Dissolve 1-2.6 parts by weight of benzoyl peroxide (BPO) in 40-60 parts by weight of ethyl acetate, and then add the prescribed amount of isooctyl acrylate, butyl acrylate, acrylic acid, and 2 ethyl acrylate Hexyl hexyl ester and toluene were stirred and mixed evenly to obtain a mixed solution;

[0067] 2) Add 30-50 parts by weight of ethyl acetate into the reactor and heat up to 76-80°C. After the reflux is stable, slowly add 1 / 2 volume of the above mixed solution dropwise, and react at 80-82°C for 1-1.5 hours;

[0068] 3) Dissolve remaining benzoyl peroxide (BPO) in remaining ethyl acetate while step 2) reacts, be divided into three parts of ethyl acetate solutions of benzoyl peroxide (BPO) of 10-30 parts by weight Add one part of it to the reaction system of...

Embodiment 1

[0081] A kind of freeze-resistant acrylate pressure-sensitive adhesive, prepared by the following method:

[0082] 1) First, dissolve 2.0 parts of benzoyl peroxide (BPO) in 100 parts of ethyl acetate, stir well to make it dissolve evenly, after the dissolution is complete, add 50 parts of the above-mentioned isooctyl acrylate, butyl acrylate 200 parts of ester, 30 parts of 2-ethylhexyl acrylate, 100 parts of acrylic acid, 10 parts of hydroxyethyl acrylate, 10 parts of vinyl acetate, and 400 parts of toluene were stirred and mixed evenly;

[0083] 2) Add 40 parts of ethyl acetate into the reactor and raise the temperature to 75°C. After the reflux is stable, slowly add 1 / 2 of the above mixed solution dropwise, and finish dropping in 1 hour; and control the reaction temperature at 80-82°C; Then add 20 parts of ethyl acetate dissolved with 0.5 parts of benzoyl peroxide (BPO) dropwise, finish the dropwise addition within 10 minutes, and keep it warm for 1 hour; then slowly add the...

Embodiment 2

[0090] A kind of freeze-resistant acrylate pressure-sensitive adhesive, prepared by the following method:

[0091] 1) First, dissolve 1.8 parts of benzoyl peroxide (BPO) in 40 parts of ethyl acetate, stir well to make it dissolve evenly, after the dissolution is complete, add 30 parts of the above-mentioned isooctyl acrylate, butyl acrylate 180 parts of ester, 50 parts of 2-ethylhexyl acrylate, 80 parts of acrylic acid, 50 parts of hydroxyethyl acrylate, 20 parts of vinyl acetate, and 450 parts of toluene were stirred and mixed evenly;

[0092]2) Add 50 parts of ethyl acetate into the reactor and raise the temperature to 75°C. After the reflux is stable, start to slowly add 1 / 2 of the above mixed solution, and drop it in 1.5 hours; and control the reaction temperature at 80-82°C; Add 20 parts of ethyl acetate with 0.4 parts of benzoyl peroxide (BPO) dropwise, drop it within 20 minutes, and keep it warm for 1 hour; then slowly add the remaining 1 / 2 monomer mixed solution dropwi...

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Abstract

The invention discloses a freeze-tolerant acrylate pressure-sensitive adhesive, a preparation method thereof, and an application thereof in the production of freeze-tolerant acrylate pressure-sensitive labels. The adhesive is prepared through free radical polymerization of copolymerization monomers, and the copolymerization monomers comprise, by weight, 20-50 parts of iso-octyl acrylate, 150-200 parts of butyl acrylate, 50-100 parts of acrylic acid, 10-70 parts of 2-ethylhexyl acrylate, 100-200 parts of ethyl acetate, 300-450 parts of toluene and 3-5 parts of benzoyl peroxide. The problems of low molecular weight, insufficient cohesive energy and adhesive overflow due to softness are solved through improving a formula and combing a new label production technology; and the freeze-tolerant acrylate pressure-sensitive adhesive labels disclosed in the invention have the advantages of soft adhesive, stable performances, avoiding of warping, opening and other phenomena when used to label refrigerated blood bags and other refrigerated products, and solving of the problem of difficult automatic labeling of -30DEG C blood bags with present blood bag labels.

Description

technical field [0001] The invention relates to a medical pressure-sensitive adhesive and its preparation method and application, in particular to a freeze-resistant acrylate pressure-sensitive adhesive, its preparation method and its application in preparing a freeze-resistant acrylate pressure-sensitive label. Background technique [0002] With the development of medical technology, blood transfusion has become a relatively common treatment process. In the earliest blood transfusion, the blood was collected from the donor and immediately transfused to the patient, and there was no problem of preservation. Now it is generally transfused with stored blood, that is, the blood has a short storage period in the blood bank. In order to transfuse the most effective blood, that is to say, to preserve the viability of the cells so that they can continue to survive after the transfusion and complete their due functions, it is necessary to try to solve various cell damage problems th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J7/02C08F220/18C08F220/28C08F220/06C08F218/08C09J7/20
CPCC09J7/243C09J7/385C09J7/255C09J7/22C09J7/38C09J133/08C09J2467/006C09J2433/00C09J2423/046C09J2423/106C09J2203/334C08F220/1804C09J2301/40C09J2301/414C09J2301/302C08F220/1808C08F220/06C08F220/20C08F218/08C09J131/04C09J7/20
Inventor 李书锋李书芒周秋妹
Owner GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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