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Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin

一种多羟基聚氨酯、聚硅氧烷的技术，应用在人造革领域，能够解决性能差异、不充分等问题，达到耐热性优异的效果

Active Publication Date: 2014-02-19
DAINICHISEIKA COLOR & CHEM MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with existing products, there are differences in performance, and there are problems in practical application, and they are still insufficient in terms of realizing environmental protection on a global scale (Patent Documents 3 to 5).

Method used

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  • Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin
  • Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin
  • Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0103] (manufacture of modifier)

[0104] While mixing 100 parts of trimethylolpropane and hexamethylene diisocyanate tripolymer adduct [Coronate HL (trade name), Nippon Polyurethane Co., Ltd., NCO=12.9%, solid content 75%], ethyl acetate While fully stirring 24.5 parts at 100° C., 25.5 parts of ε-caprolactam were added and reacted for 5 hours. According to the infrared absorption spectrum of the modifier obtained (measured with FT-720 manufactured by Horiba Corporation. The same applies below.), at 2,270 cm -1 Absorption of free isocyanate groups remains. When the free isocyanate group was quantified, the theoretical value was 2.1% based on 50% of the solid content, whereas the actual measurement value was 1.8%. Therefore, the main structure of the above modifier is estimated to be the following formula.

[0105]

manufacture example 2

[0106] (manufacture of modifier)

[0107] While fully stirring 100 parts of an adduct of hexamethylene diisocyanate and water [Duranate 24A-100 (trade name), manufactured by Asahi Kasei Co., Ltd., NCO=23.0%], and ethyl acetate at 80°C, add methyl ethyl 32 parts of base ketoxime, reacted for 5 hours. According to the obtained infrared absorption spectrum of the modifier, at 2,270cm -1 Absorption of free isocyanate groups remained at the position, and when the free isocyanate groups were quantified, the theoretical value was 2.9% based on 50% solid content, while the actual measurement value was 2.6%. Therefore, the main structure of the above modifier is estimated to be the following formula.

[0108]

manufacture example 3

[0109] (Manufacture of five-membered ring cyclic carbonate compound)

[0110] Add the divalent epoxy compound [Epicoat828 (trade name), Japanese epoxy resin (KK) system shown in formula A in the reaction vessel that is equipped with stirrer, thermometer, gas introduction pipe and reflux condenser; Epoxy equivalent 187g / mol], 100 parts of N-methylpyrrolidone, and 1.5 parts of sodium iodide were uniformly dissolved.

[0111]

[0112] Thereafter, while bubbling carbon dioxide at a rate of 0.5 liter / minute, the mixture was heated and stirred at 80° C. for 30 hours. After the reaction was finished, the obtained solution was slowly added while stirring at a high speed at 300rpm in 300 parts of normal hexane, and the powdery product generated was filtered with a filter, and washed with methanol to remove N-methylpyrrolidone and sodium iodide. The obtained powder was dried in a drier to obtain 118 parts of a five-membered ring cyclic carbonate compound (1-A) as a white powder (...

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Abstract

A problem is to provide, in the field of polyhydroxy polyurethane resins the development of applications of which has not moved ahead by conventional technologies, a self-crosslinking polyhydroxy polyurethane resin, which enables to provide products, such as imitation leathers, excellent in abrasion resistance, chemical resistance, heat resistance and the like, and moreover, which is useful from the viewpoint of a reduction in greenhouse gas, contains carbon dioxide incorporated and fixed therein, and is responsive to environmental conservation. Provided are a self-crosslinking, polysiloxane-modified, polyhydroxy polyurethane resin having masked isocyanate groups in a structure of a polysiloxane-modified, polyhydroxy polyurethane resin derived from a reaction of a 5-membered cyclic carbonate compound and an amine-modified polysiloxane compound and having polysiloxane segments therein; a production process of the self-crosslinking resin; a resin material containing the self-crosslinking resin; and an imitation leather composed of a base fabric and a resin composition composed of the self-crosslinking resin as its principal component and impregnated in or laminated on the base fabric.

Description

technical field [0001] The invention relates to a novel self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin, a method for producing the resin, a resin material containing the resin, and an artificial leather using the resin. In more detail, it relates to a technology for providing a self-crosslinking type polysiloxane-modified polyhydroxyurethane resin, which is used as a resin when forming a film / molding material, various coating materials, various adhesives, etc. In the case of materials, products with excellent slipperiness, abrasion resistance, chemical resistance, non-adhesiveness, and heat resistance can be obtained. In addition, carbon dioxide is used as a raw material for resin production, thereby preventing global environmental pollution. Perspective considerations of destruction are also useful. In addition, the present invention relates to a technology using the above-mentioned resin that can provide artificial leather, which can improve texture,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/80C08G71/04C08L75/12C09D175/12D06N3/14
CPCC08G18/58C09D175/04C08G59/1438C08G18/8074D06N2211/28C08G18/8077C08G18/8022C08G18/7825D06N3/14D06N2209/06C08G18/61D06N2209/1685D06N2209/143C08G18/3893D06N2209/105D06N3/128D06N3/146Y10T442/20C08G18/80C08G18/83C08G71/04C08L75/12C09D175/12C08L83/04
Inventor 花田和行木村千也高桥贤一宇留野学
Owner DAINICHISEIKA COLOR & CHEM MFG CO LTD
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