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Self-sensitive polymerizable liquid resin and use thereof

一种液体树脂、光聚合的技术，应用在聚酯涂料、聚脲/聚氨酯涂料、涂层等方向，能够解决无法成为液态等问题，达到避免树脂胶化、良好辐射固化性的效果

Active Publication Date: 2014-02-12
ETERNAL MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the known self-photosensitive polymer resins have many limitations in synthesis. For example, in the literature (Macromolecular Rapid Communications, volume 16p135-138, 1995) Mozner and Rheinberger have reported that acetoacetyl ester donor compounds can be added to polyfunctional acrylate acceptor compounds to form A Michael addition reaction occurs, but if acetoacetate is added to acrylates with more than three functional groups, the formed cross-linked polymer product is already a cross-linked gel
Although the product still has unreacted acryloyl functional groups, the resulting network structure can be regarded as gelled or solidified. Since the network structure is essentially cross-linked, it can be dissolved under heating or solvent can no longer be liquid

Method used

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  • Self-sensitive polymerizable liquid resin and use thereof
  • Self-sensitive polymerizable liquid resin and use thereof
  • Self-sensitive polymerizable liquid resin and use thereof

Examples

Experimental program
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Effect test

preparation example 1

[0097] Take 373 grams of trifunctional acrylate monomer (EM235-1 provided by Eternal Company) and 0.57 grams of catalyst DBTL (dibutyltin dilaurate, ACROSCHEMICALS) and mix them in a four-necked flask at room temperature under nitrogen, and mix trifunctional isocyanate (provided by Bayer Company) After adding 200 grams of Desmodur XP2580) slowly, the temperature was raised to 75° C. and reacted for eight hours to obtain 573 grams of the final nine-functional acrylate monomer. Weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) (model: Waters2414RI): 1,390.

Embodiment A-1

[0100] Take 2800 grams of hexafunctional acrylate monomer (EM265 provided by Eternal Company) and catalyst DBU (1,8-Diazabicyclo[5.4.0]undec-7-ene, ACROS CHEMICALS) 9.25 grams (0.05 equivalent of EAA) and mix Stir in a four-necked flask at room temperature, add 158 g (0.25 equivalent) of Mike donor (EAA, ACROS CHEMICALS) and raise the temperature to 95°C for six hours to obtain 2960 g of the final resin (HSY-703).

Embodiment A-2

[0102] Get 500 grams of hexafunctional acrylate monomer (EM265 provided by Eternal Company) and catalyst DBU (1,8-Diazabicyclo [5.4.0] undec-7-ene, ACROSCHEMICALS) 2.63 grams (0.05 equivalent of EAA) mixed in Stir in the four-neck flask at room temperature, add 45 g (0.4 equivalent) of Mike donor (EAA, ACROS CHEMICALS) and raise the temperature to 95° C. for six hours to obtain 545 g of the final resin.

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Abstract

A self-sensitive polymerizable liquid resin is provided, which contains an uncrosslinked Michael addition reaction product of the following components: a Michael donor, a Michael accepter and optionally a viscosity modifier. The Michael accepter has 5 to 18 acryloyl functional groups. The self-sensitive polymerizable liquid resin of the present invention is capable of being used as an aid in a coating composition and providing a good property in deep radiation curing, and is particularly applicable in color coatings.

Description

technical field [0001] The invention relates to a self-photosensitive polymerized liquid resin, which has excellent deep-layer curing and dark-color curing effects. The present invention also relates to a coating composition containing the resin, which can be coated on the surface of a substrate to form a film. Background technique [0002] In recent years, based on environmental considerations, most coatings have been converted to radiation curing processes, such as UV curing. Due to the advancement of raw material technology, it has been possible to manufacture UV-cured coatings through the addition of photoinitiators at commercial production depths to produce prints or films with good haze, durability, and chemical resistance. However, traditional photoinitiators (such as benzophenone) have disadvantages such as toxicity, cost, and odor. In addition, traditional photoinitiators also have the disadvantage of being prone to iridescent patterns, which limits their use in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C09D4/02C09D4/06C09D175/14C09D165/00C09D7/12
CPCC08G63/40C09D167/06C09D4/06C08G63/66C08G61/12C08G2261/135C08G2261/334C08G2261/354C08G2261/76C09D167/07C08G63/005
Inventor 薛圣耀王宏宇
Owner ETERNAL MATERIALS CO LTD
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