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Resin composition, molded article and method for producing same

A technology for resin compositions and molded products, which is applied in the field of resin compositions, molded products and their manufacturing, and can solve the problems of lower glass transition temperature elastic modulus, inability to obtain the original physical properties of thermoplastic resins, difficulty in application, etc., and achieve fluidity excellent effect

Active Publication Date: 2019-06-07
ASAHI YUKIZAI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the reason, the following can be cited: general plasticizers have low melting points or boiling points, so they can be applied to thermoplastic resins with low melting points (for example, less than 200°C), but it is difficult to apply them to thermoplastic resins with high melting points (for example, above 200°C). resin
In addition, as other reasons, the resin composition obtained by adding an additive to a thermoplastic resin has a decrease in the glass transition temperature (Tg) or elastic modulus, which are indicators of heat resistance, due to the plasticizing effect. , Tendency that the original physical properties of thermoplastic resins cannot be obtained

Method used

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  • Resin composition, molded article and method for producing same
  • Resin composition, molded article and method for producing same
  • Resin composition, molded article and method for producing same

Examples

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Embodiment

[0102] Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to the following Example.

[0103]

manufacture example 1

[0105] 104 g of novolak-type phenolic resin "SP1010" (manufactured by Asahi Organic Materials Co., Ltd.) (hydroxyl equivalent weight: 104 g / eq) as the first organic compound and 104 g of phenyl glycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.) as the second organic compound were charged into a 1 L flask. ) (epoxy equivalent: 150 g / eq) 150 g, heated at 80° C. to melt the novolac resin. 1.5 g of triphenylphosphine (manufactured by Tokyo Chemical Industry Co., Ltd.) was added to the obtained mixture, and after heating up to 110 degreeC, it was made to react for 3 hours. Thereafter, after raising the temperature of the polymer as the reaction product to 170° C., the pressure was reduced, and volatile components were removed over 30 minutes. Thereafter, the pressure was restored, and after cooling to 150° C., the polymer was discharged. The obtained polymer was subjected to gel permeation chromatography ("SC-8020" manufactured by Tosoh, column: "G2000Hxl" and "G40...

manufacture example 2

[0107] As the second organic compound, instead of 150 g of phenyl glycidyl ether, 130 g of phenyl glycidyl ether and 20 g of bisphenol F diglycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.) (epoxy equivalent: 340 g / eq) were used. Synthesis was carried out in the same manner as in Production Example 1. The obtained polymer had a Mw of 6,200 as measured by gel permeation chromatography. Let this polymer be polymer B.

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Abstract

The purpose of the present invention is to provide a resin composition which is able to have improved fluidity in a molten state, while maintaining heat resistance without a decrease. A resin composition according to the present invention contains: a polymer having a weight average molecular weight of 10,000 or less, which is a reaction product of a first organic compound having a phenolic hydroxyl group and a second organic compound having a glycidyl group; and a thermoplastic resin other than the polymer. The content ratio of the polymer is preferably from 0.1% by mass to 30% by mass (inclusive). The melting point of the thermoplastic resin is preferably 200 DEG C or higher. The thermoplastic resin may preferably contain a benzene ring in each molecule. It is preferable that the polymerand the thermoplastic resin are compatibilized with each other, thereby forming a homogeneous phase. The present invention includes a molded article which is formed from the above-described resin composition. The present invention also includes a method for producing a molded article, which comprises: a step for kneading the above-described resin composition by means of chaos mixing; and a step for molding a kneaded product obtained in the kneading step.

Description

technical field [0001] The present invention relates to a resin composition, a molded article, and a method for producing the same. Background technique [0002] A resin composition using a thermoplastic resin melts and exhibits fluidity when heated to a high temperature, and thus is effectively used in the manufacture of molded articles in various industrial fields. In the production of the molded article, it is important to stabilize the fluidity of the molten resin composition from the viewpoint of improving transferability and the like. In particular, in a resin composition obtained by dispersing a reinforcing material such as carbon fiber as a filler in a thermoplastic resin with a high melting point (for example, 200° C. or higher), the viscosity at the time of melting may decrease due to the addition of a filler such as a reinforcing material. risk. Therefore, it is important to ensure sufficient fluidity even near the melting point of the thermoplastic resin. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/26C08L101/00
CPCC08L61/26C08L101/00B29B7/002B29B7/7485B29B7/90C08L81/02C08J3/005C08J2381/04C08J2367/02C08J2461/00C08J2463/00B29B7/14C08L63/04C08L2203/30C08L2205/06C08L2205/16C08L2207/04C08G59/621C08L61/06
Inventor 松本泰宏井上隆规仓地育夫
Owner ASAHI YUKIZAI KOGYO CO LTD
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