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Cellulose resin and method for producing same

一种纤维素树脂、纤维素的技术，应用在纤维素树脂及其制造领域，能够解决耐水性低、吸水性高等问题，达到色彩亮度改善、容易制造的效果

Active Publication Date: 2013-12-25
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because cellulose contains many hydroxyl groups, it has high water absorption and low water resistance

Method used

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  • Cellulose resin and method for producing same
  • Cellulose resin and method for producing same
  • Cellulose resin and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0166] Hereinafter, the present invention will be described more specifically by way of examples.

Synthetic example 1

[0167] [Synthesis Example 1] Preparation of Hydrogenated Cardanol (3-pentadecylcyclohexanol)

[0168] In a batch-type autoclave with an internal volume of 1.0 liter, put cardanol (20 g) obtained by distillation and purification of heat-treated cashew nut oil, 2 g of ruthenium / carbon catalyst (Ru: 5% by mass), and tetrahydrofuran (20 mL ) and at room temperature at 20kgf / cm 2 (1.96×10 6 Pa) Hydrogen was pressurized and stirred at 80° C. for 3 hours to carry out a hydrogenation reaction. Thereafter, the solution was taken out from the autoclave and filtered by using a membrane filter made of Teflon (registered trademark) and having an average pore diameter of 0.2 μm to remove the ruthenium / carbon catalyst. The obtained filtrate was treated under reduced pressure while heating to distill off tetrahydrofuran. As a result, hydrogenated cardanol (20.6 g) was obtained as a white solid at room temperature.

[0169] The purity of the obtained hydrogenated cardanol was measured by l...

Synthetic example 2

[0171] [Synthesis Example 2] Synthesis of Cardanol Derivative 1 Added with Diisocyanate

[0172] The temperature of hexamethylene diisocyanate (HDI) (84.5 g (0.50 mol)) was raised to 50°C while stirring. Hydrogenated cardanol (15.5 g (0.05 mol)) prepared in Synthesis Example 1 was added thereto and stirring was continued at 80° C. for 3 hours. After the reaction solution was cooled to room temperature, acetonitrile (300 mL) was added. The reaction solution was allowed to stand overnight in the refrigerator. Thereafter, the precipitated solid was separated by filtration and dried under vacuum, thereby obtaining a diisocyanate-added cardanol derivative in which HDI and hydrogenated cardanol were combined at a ratio of 1:1 as a white powder (18.2 g ( 0.04 mol)).

[0173] The obtained sample (cardanol derivative added with diisocyanate) was measured by liquid chromatography (product name: LC-10ADVP, manufactured by Shimadzu Corporation). The purity was 92% by mass.

[0174] I...

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Abstract

Provided is a cellulose resin resulting from bonding a hydrogenated cardanol and cellulose or a derivative thereof by means of the reaction of an isocyanate group of a diisocyanate compound and a hydroxyl group of the cellulose or a derivative thereof and a hydroxyl group of the hydrogenated cardanol, which contains 3-pentadecyl cyclohexanol.

Description

technical field [0001] The present invention relates to cellulose resin and its production method. Background technique [0002] Bioplastics using plants as raw materials can provide countermeasures against oil depletion and global warming, and have begun to be used in not only ordinary products such as packaging, containers and fibers but also durable products such as electronic instruments and automobiles. [0003] However, general bioplastics such as polylactic acid, polyhydroxyalkanoate, and modified starch all use starch materials, more precisely, edible parts as raw materials. Therefore, to avoid future food shortages, it is necessary to develop a new type of bioplastic using non-edible parts as raw materials. [0004] As bioplastics using non-edible parts as raw materials, various bioplastics using cellulose, which is a main component of wood and non-edible parts of plants, have been developed and commercialized. [0005] Cellulose is a high molecular weight compoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B15/06C08L1/08
CPCC08B15/06C08G18/2825C08G18/6484C08G18/73C08G18/7621C08G18/8067
Inventor 田中修吉文成日位地正年
Owner NEC CORP
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