Self-repairing polyurethane resin raw material, self-repairing polyurethane resin, self-repairing coating material, self-repairing elastomeric material, self-repairing polyurethane resin raw material production method and self-repairing polyurethane resin production method

A polyurethane resin, self-healing technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of brittleness, high hardness, inability to prevent indentation damage, etc., and achieve excellent balance, weather resistance and light resistance. Excellent effect

Inactive Publication Date: 2017-08-01
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the coating film formed by the hard coating process has excellent scratch resistance, on the other hand, it tends to become brittle due to its high hardness.
Therefore, once damaged, cracks may easily form from the site, and damage such as dents and pits may not be prevented.

Method used

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  • Self-repairing polyurethane resin raw material, self-repairing polyurethane resin, self-repairing coating material, self-repairing elastomeric material, self-repairing polyurethane resin raw material production method and self-repairing polyurethane resin production method
  • Self-repairing polyurethane resin raw material, self-repairing polyurethane resin, self-repairing coating material, self-repairing elastomeric material, self-repairing polyurethane resin raw material production method and self-repairing polyurethane resin production method
  • Self-repairing polyurethane resin raw material, self-repairing polyurethane resin, self-repairing coating material, self-repairing elastomeric material, self-repairing polyurethane resin raw material production method and self-repairing polyurethane resin production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0326] Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, this invention is not limited to these examples. In addition, in the following description, unless otherwise specified, "part" and "%" are based on mass. In addition, the numerical value of the Example shown below can be replaced with the numerical value (namely, upper limit value or lower limit value) described in embodiment.

[0327] In addition, the measurement methods used in each Example and each comparative example are as follows.

[0328]

[0329] Isocyanate monomers (polyisocyanate compounds, specifically, 1,6-hexamethylene diisocyanate, 1,4-bis(isocyanatomethyl)cyclohexane, or m-xylylene diisocyanate) were used as standard substances , using a calibration curve prepared from the area value of the chromatogram obtained under the following HPLC analysis conditions, the concentration of unreacted isocyanate monomer in the polyurethane resin raw mat...

manufacture example 1

[0378] Production Example 1 (production of 1,4-bis(aminomethyl)cyclohexane)

[0379] By the same operation as in Example 1 described in paragraph numbers [0132] to [0147] in the specification of International Publication No. WO2012 / 046782, a trans-isomer / cis-isomer=88 / 12 (molar ratio) was obtained. 1,4-Bis(aminomethyl)cyclohexane.

manufacture example 2

[0380] Production Example 2 (production of 1,4-bis(isocyanatomethyl)cyclohexane)

[0381] Except that the 1,4-bis(aminomethyl)cyclohexane obtained in Production Example 1 was used, the method described in paragraph numbers [0225] to [0229] in the specification of International Publication Pamphlet WO2009 / 051114 The same operation of Production Example 1 was carried out to obtain 1,4-bis(isocyanatomethyl)cyclohexane (hereinafter sometimes referred to as 1,4- BIC). In addition, the purity measured by gas chromatography was 99.9%.

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Abstract

This self-repairing polyurethane resin raw material is obtained by reacting a polyisocyanate compound having an aliphatic polyisocyanate and / or an araliphatic polyisocyanate and an active hydrogen containing compound, is used in the production of a polyurethane resin having self-repairing properties, and has an isocyanate group at the molecular terminal. The self-repairing polyurethane resin raw material contains an allophanate group and an isocyanate trimer, and has a 0.1-20 molar ratio of allophanate groups to isocyanate trimers.

Description

technical field [0001] The present invention relates to a self-healing polyurethane resin raw material, a self-healing polyurethane resin, a self-healing coating material, a self-healing elastomer material, a method for producing a self-healing polyurethane resin raw material, and a method for producing a self-healing polyurethane resin. Background technique [0002] Conventionally, plastics have been widely used in various industrial fields due to their excellent processability. On the other hand, since plastic has lower hardness than glass, metal, etc., there is a disadvantage that damage such as scratches easily occurs on the surface. [0003] Therefore, it has been proposed to form a coating film excellent in scratch resistance on the surface of the plastic to protect the plastic. In addition, it has been proposed to form a coating film excellent in scratch resistance not only on plastics but also on the surface of relatively hard glass, metal, and the like. [0004] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/10C08G18/42C08G18/79C09D175/04
CPCC09D175/04C08G18/4825C08G18/4854C08G18/6229C08G18/757C08G18/7642C08G18/7837C08G18/246C08G18/4202C08G18/4277C08G18/4808C08G18/09C08G18/092C08G18/168C08G18/1875C08G18/26C08G18/44C08G18/73C08G18/10C08G18/62C08G18/12C08G18/48C08G18/283C08G18/16C08G18/42C08G18/79C09D175/06
Inventor 中川俊彦菅野任森田广一山崎聪
Owner MITSUI CHEM INC
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