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Catalytic low temperature polymerization

A catalyst and polymerization catalyst technology, applied in the direction of coating, etc., can solve the problems of poor chemical resistance and physical properties of cured materials, and strong acid adversely affecting the actual performance of polymerization results.

Active Publication Date: 2009-08-26
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in practical applications, such strong acids may also be detrimental to the final polymerization results and their practical properties
For example, it may occur that the chemical resistance and physical properties of the cured material deteriorate

Method used

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  • Catalytic low temperature polymerization
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] Benzoxazine (10 g, 44 mmol) and p-toluenesulfonic acid monohydrate [PTS] (76 mg, 0.40 mmol) and 2-ethyl-4-methylimidazole [EMI] (44 mg, 0.40 mmol) were placed together in a reaction vessel and heated at 40 °C under vacuum for 1 h to form a homogeneous mixture.

[0099] The resulting mixture was then heated at 150°C. Schematic 1 of the reaction process through the continuous 1 H-NMR analysis was observed. See attached Picture 1-1 , detailing the aggregated 1 How H-NMR monitoring works: The change in size and / or disappearance of characteristic peaks directly corresponds to the amount of different chemical components in the mixture. In other words, the monitoring makes it possible to calculate the conversion of monomers and the compositional ratio between [ether-type] and [Mannich-type] structures.

[0100] Regarding Example 1, the 1 The H-NMR spectrum showed that after heating at 150 °C for 2 h, all the monomers were transformed into polymeric structures.

[0101] ...

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PUM

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Abstract

The present invention relates to a polymerization catalyst, comprising at least two components, wherein at least one or more of said at least two components are selected from the group of nitrogen containing heterocycles and / or their derivatives and at least one or more of said at least two components is selected from the group of organic sulfur containing acids and / or derivatives of organic sulfur containing acids.

Description

technical field [0001] The present invention relates to a polymerization catalyst comprising at least two components, wherein at least one of these components is selected from nitrogen-containing heterocyclic compounds and / or their derivatives, and at least one of these components is selected from organic Sulfonic acid and / or organic sulfonic acid derivatives, as well as compositions comprising said catalyst and uses of said catalyst. Background technique [0002] Electronic devices, such as circuit boards, semiconductors, transistors and diodes, are often coated with materials such as epoxy for protection. Such coating materials are often cured by heating on the surface of the electronic device. But electronic devices are often sensitive to heating, and excessive heating can adversely affect the device's performance. Another problem in practice is that a large amount of energy is required for heating and / or the time required for the polymerization and curing reaction is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C08L65/00C08G59/40
CPCC08G61/123C08L79/04C08L65/00C09D179/04C08G59/686C08G73/0677C09D165/00C08G61/122
Inventor 须藤淳工藤良一有马一也中山博志远藤健安德烈亚斯·塔登托马斯·胡佛
Owner HENKEL KGAA