Resin composition, and transparent resin formed body and coating film using same

A technology of resin composition and transparent resin, which is applied in the fields of resin composition, resin molding and coating film, can solve the problems of decreased transparency and reduced modification effect, and achieves the reduction of thermal expansion rate and excellent flame retardancy. Effect

Active Publication Date: 2011-10-12
NISSHINBO IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the method of adding these fillers has the problem of lowering the transparency in the case of using a transparent resin
Although the decrease in transparency can be suppressed by reducing the amount of fillers added, there is a problem that the modification effect caused by the addition of fillers will be reduced.

Method used

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  • Resin composition, and transparent resin formed body and coating film using same
  • Resin composition, and transparent resin formed body and coating film using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] Hereinafter, synthesis examples, examples, and comparative examples are given to describe the present invention more specifically, but the present invention is not limited to the following examples. In addition, evaluation of a raw material, a resin composition, and a resin molded object was performed by the following method.

[0055] [1] Coefficient of linear expansion

[0056] Determined by thermal analysis. Specifically, a sample piece having a width of 5 mm, a length of 15 mm, and a thickness of 150 μm was produced from the molded body obtained in each of Examples and Comparative Examples.

[0057] About this sample piece, it measured in the range of 30-200 degreeC at the temperature increase rate of 5.0 degreeC / min using the thermal analysis apparatus (TMA8310, the Rigaku company make).

[0058] [2] Transparency (haze)

[0059] According to JIS K 7136, it measured using the haze meter (NDH-500 Nippon Denshoku Industries Co., Ltd. make).

[0060] [3] Transparenc...

Synthetic example 1

[0075] In a 100ml long-necked flask, make 20.0g of scaly magnesium hydroxide (Kisma 5: surface untreated Mg(OH) 2 , Kyowa Chemical Co., Ltd.) was well dispersed in 30.0 g of dimethylformamide (Aldrich Japan Co., Ltd.). Then, 0.04 g of 3-methacryloxypropyltrimethoxysilane (silane coupling agent, manufactured by Chitsuso Co., Ltd.) was added, and stirred at 70° C. for 30 minutes. Thereafter, 0.02 g of azobisisobutyronitrile (manufactured by Kanto Chemical Co., Ltd.), 1.0 g of styrene (manufactured by Kanto Chemical Co., Ltd.), and 1.0 g of methacrylic acid (manufactured by Kanto Chemical Co., Ltd.) were added, at 70 It was reacted by heating for about 15 hours at °C.

[0076] After the reaction, in order to remove unreacted monomers and ungrafted polymers, the magnesium hydroxide particles were washed with tetrahydrofuran (manufactured by Wako Pure Chemical Industries, Ltd.), suctioned, and filtered, and the above steps were repeated. Operate 3 times. After washing, the IR sp...

Synthetic example 2

[0078] In a 100ml long-necked flask, make 20.0g of scaly magnesium hydroxide (Kisma 5: surface untreated Mg(OH) 2 , Kyowa Chemical Co., Ltd.) was well dispersed in 30.0 g of dimethylformamide (Aldrich Japan Co., Ltd.). Then, 3.0 g of epoxy group-containing silane coupling agents (KBE402, manufactured by Shin-Etsu Chemical Co., Ltd.) were added, and heated at 70° C. for 15 hours to make it react.

[0079] After the reaction, in order to remove the unreacted silane coupling agent, the magnesium hydroxide particles were washed with tetrahydrofuran (manufactured by Wako Pure Chemical Industries, Ltd.), suctioned, and filtered, and the above operations were repeated 3 times. After washing, measure the IR spectrum of this particle with FT-IR8900 (manufactured by Shimadzu Corporation), the result is 900cm -1 Absorption originating from epoxy groups appeared in the vicinity, and it was confirmed that KBE402 was chemically bonded to the surface of magnesium hydroxide. The refractive ...

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Abstract

Disclosed is a resin composition containing a transparent resin (A) and scaly particles (B) processed with an organic compound. The scaly particles (B) and the organic compound are chemically bonded, and the difference in the refractive index of the transparent resin (A) and the refractive index of the scaly particles (B) is within 0.05. Thus, a resin composition and a resin formed body with excellent transparency are obtained in spite of the fact that a filler material is contained.

Description

technical field [0001] The present invention relates to a resin composition, a resin molded article, and a coating film. Specifically, it relates to a resin composition in which scaly particles are dispersed in a transparent resin, and a transparent resin molded article and a coating film formed from the resin composition. Background technique [0002] In recent years, for the purpose of improving the physical properties of resin molded articles, various studies have been conducted on methods of adding fillers such as particles to resins. [0003] For example, Patent Document 1 discloses a method of adding calcium carbonate and / or magnesium carbonate to an aliphatic polyester resin to improve mechanical strength, and the like. [0004] In addition, in order to obtain a resin molded article with high dimensional stability by reducing the coefficient of linear expansion, studies have been made on adding fillers such as particles to the resin composition. [0005] However, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/12C08J5/00C08K9/04C09D7/62
CPCC08K3/22C08K9/04C08L63/00C09D163/00C09D7/62C09D7/67C09D7/68C09D7/69C09D7/70
Inventor 塚本奈巳中岛真一
Owner NISSHINBO IND INC
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