A kind of acrylate solid repositionable adhesive and its preparation and coating method

A technology of acrylate and coating method, applied in the direction of adhesives, ester copolymer adhesives, adhesive types, etc., can solve the problems of spacer paper coating deformation, solvent-based adhesive environmental pollution, insufficient adhesion, etc. Achieve the effect of reducing power consumption, simple and effective coating method, and enhancing initial adhesion

Active Publication Date: 2021-08-03
深圳市久久天一纸制品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an acrylate solid repositionable adhesive and its preparation and coating method, which completely solves the problems of spacer paper coating deformation and insufficient adhesion, and completely maintains the original flatness of the paper , to achieve 100% no bending, and solve the problem of serious environmental pollution caused by solvent-based adhesives

Method used

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  • A kind of acrylate solid repositionable adhesive and its preparation and coating method
  • A kind of acrylate solid repositionable adhesive and its preparation and coating method
  • A kind of acrylate solid repositionable adhesive and its preparation and coating method

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preparation example Construction

[0029] The preparation method of acrylate solid repositionable adhesive comprises the following steps:

[0030] (1) Mixing: mix the acrylate monomer, unsaturated acid, functional monomer, special monomer, crosslinking agent and initiator uniformly by weight to obtain a mixture;

[0031] (2) The first stage of reaction: heat the mixture obtained in step (1) and maintain it in the temperature range of 80-90°C, and when the mixture becomes viscous, cool down to 50-70°C and keep it warm for 2 hours;

[0032] (3) Second stage reaction: heat the mixture obtained in step (2) to a temperature range of 150-180°C for reaction, stop the reaction when it reaches a fluid state, and the reaction time is 40-45 minutes to obtain a fluid polymer .

[0033] (4) Solidification: Cool the fluid polymer obtained in step (3) to below minus 70° C., the fluid polymer solidifies into a solid state, and obtains an acrylate solid repositionable adhesive.

[0034]It completely solves the problem of defo...

Embodiment 1

[0050] A kind of acrylate solid repositionable adhesive, its raw material composition is as shown in table 1:

[0051] The raw material composition of the acrylate solid repositionable adhesive of table 1 embodiment 1

[0052]

[0053]

[0054] The preparation method of the above-mentioned acrylate solid repositionable adhesive comprises the following steps:

[0055] (1) Mixing: mix the acrylate monomer, unsaturated acid, functional monomer, special monomer, crosslinking agent and initiator uniformly by weight to obtain a mixture;

[0056] (2) The first stage of reaction: heat the mixture obtained in step (1) and maintain it in the temperature range of 80-90°C, and when the mixture becomes viscous, cool down to 50-70°C and keep it warm for 2 hours;

[0057] (3) Second stage reaction: heat the mixture obtained in step (2) to a temperature range of 150-180°C for reaction, stop the reaction when it reaches a fluid state, and the reaction time is 40-45 minutes to obtain a f...

Embodiment 2

[0060] A kind of acrylate solid repositionable adhesive, its raw material composition is as shown in table 2:

[0061] The raw material composition of the acrylate solid repositionable adhesive of table 2 embodiment 2

[0062]

[0063] The preparation method of the above-mentioned acrylate solid repositionable adhesive comprises the following steps:

[0064] (1) Mixing: mix the acrylate monomer, unsaturated acid, functional monomer, special monomer, crosslinking agent and initiator uniformly by weight to obtain a mixture;

[0065] (2) The first stage of reaction: heat the mixture obtained in step (1) and maintain it in the temperature range of 80-90°C, and when the mixture becomes viscous, cool down to 50-70°C and keep it warm for 2 hours;

[0066] (3) Second stage reaction: heat the mixture obtained in step (2) to a temperature range of 150-180°C for reaction, stop the reaction when it reaches a fluid state, and the reaction time is 40-45 minutes to obtain a fluid polymer...

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Abstract

The invention discloses an acrylate solid repositionable adhesive and a preparation and coating method thereof. The acrylate solid repositionable adhesive comprises the following raw materials in parts by weight: 60-95 parts of acrylate monomer, 0-95 parts 6 parts of unsaturated acid, 0-6 parts of functional monomer, 1-20 parts of special monomer, 0.5-3 part of initiator, 0.1-1 part of crosslinking agent. The preparation method of the acrylate solid repositionable adhesive comprises the following steps: (1) mixing; (2) first-stage reaction; (3) second-stage reaction; (4) solidification. A method for coating an acrylate solid repositionable adhesive, comprising the following steps: (1) heating the acrylate solid repositionable adhesive to a fluid state after being heated to 120-350° C. through a hot melt box; (2) ) coating the fluid state acrylate solid repositionable adhesive obtained in step (1) on the substrate, and curing at room temperature.

Description

technical field [0001] The invention belongs to the field of polymer material technology and hot melt adhesive coating, and specifically relates to an acrylate solid repositionable adhesive and a preparation and coating method thereof. Background technique [0002] Re-stickable notes are sticky notes that can be pasted repeatedly. Currently, re-stickable notes are emerging in China. The disadvantages of known solvent repositionable adhesives are obvious, that is, they are not very environmentally friendly (solvents are mostly harmful). Solvent-based adhesives pollute the environment very seriously. With the improvement of people's environmental awareness and the establishment and improvement of related laws, the application of solvent-based adhesives has been banned and declined rapidly. The manufacturer produces equipment, develops water-based glue, and creates a re-attachable manufacturing model with Chinese characteristics; the water-based pressure-sensitive removable ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J135/02C09J7/21C09J7/24C09J7/30C08F220/18C08F220/06C08F220/20C08F222/14C08F220/14
CPCC09J7/21C09J7/243C09J7/30C09J135/02C08F220/18C09J2400/283C09J2423/106C08F220/1808C08F220/06C08F220/20C08F222/14C08F222/102C08F220/14C08F220/1802
Inventor 贺鸿武
Owner 深圳市久久天一纸制品有限公司
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