Acetals pentaerythritol tetraacrylate and preparatory method thereof

A technology of pentaerythritol acrylate and pentaerythritol, which is applied in the field of acetal pentaerythritol acrylate and its preparation, can solve the problems of high viscosity of PETA and cumbersome purification process, and achieve good adhesion and cohesiveness

Inactive Publication Date: 2013-06-12
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of cyclic acetal (ketone) type pentaerythritol acrylate and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Add 100g of pentaerythritol and 75.6g of formaldehyde into a four-necked flask and mix well, then add 1.756g of p-toluenesulfonic acid, and react at 90°C for 1 hour to obtain acetal (ketone) pentaerythritol.

[0015] (2) Add 62.3g of acrylic acid, then add 3.1g of p-toluenesulfonic acid, 0.06g of p-hydroxyanisole, 0.06g of copper chloride and 62.3g of cyclohexane, and react at 80°C for 9 hours.

Embodiment 2

[0017] (1) Add 100 g of pentaerythritol and 43.3 g of formaldehyde into a four-neck flask and mix well, then add 4.299 g of p-toluenesulfonic acid, and react at 50°C for 3 hours to obtain acetal (ketone) pentaerythritol.

[0018] (2) Add 130.7g of acrylic acid, then add 6.54g of p-toluenesulfonic acid, 0.13g of p-hydroxyanisole, 0.13g of copper chloride and 130.7g of toluene, and react at 110°C for 9 hours.

Embodiment 3

[0020] (1) Add 100 g of pentaerythritol and 21.6 g of formaldehyde into a four-neck flask and mix well, then add 12.2 g of p-toluenesulfonic acid, and react at 90°C for 3 hours to obtain acetal (ketone) pentaerythritol.

[0021] (2) Add 182.6g of acrylic acid, then add 9.1g of p-toluenesulfonic acid, 0.182g of p-hydroxyanisole, 0.182g of copper chloride and 182.6g of cyclohexane, and react at 80°C for 9 hours.

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Abstract

The invention relates to acetals pentaerythritol tetraacrylate and a preparatory method of the acetals pentaerythritol tetraacrylate. The acetals pentaerythritol tetraacrylate with a low viscosity is obtained by conducting an acetalation of pentaerythritol and a small amount of aldehyde (or ketone), and conducting a reaction of remain hydroxyl groups and tetraacrylate. The preparatory method is moderate in condition and simple and easy to operate. The acetals pentaerythritol tetraacrylate has a same activity and abrasion resistance with pentaerythritol triacrylate (PETA) and can be widely applied to abrasion-resistant floor, abrasion-resistant plastics, adhesives and the like.

Description

technical field [0001] The invention relates to an acetal pentaerythritol acrylate and a preparation method thereof. Background technique [0002] Pentaerythritol acrylic acid (PETA) is an important diluent in light-curing coatings. Due to its high functional reactive groups, it is widely used in wear-resistant floors, wear-resistant plastics, adhesives, etc. Commonly used PETA has a high viscosity, with a viscosity of 500~1500mPa·s at 25°C. As a diluent, the thinner the viscosity, the better without changing the basic performance. The common method of pentaerythritol acrylic acid is to react pentaerythritol directly with acrylic acid under the condition of catalyst. Or pentaerythritol and acrylate are prepared by transesterification under catalyst conditions, but the PETA yield obtained by this method is relatively low. PETA made by these two methods has a relatively high viscosity. [0003] There are also many methods and examples of pentaerythritol and aldehyde (ketone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D319/06
Inventor 聂俊刘建伟包容马贵平
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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