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Thermoplastic polyester resin composition and molded article

A thermoplastic polyester and resin composition technology, applied in the field of thermoplastic polyester resin composition, can solve the problems of insufficient heat resistance and insufficient hydrolysis resistance of the resin composition, and achieve excellent hydrolysis resistance and retention stability. The effect of excellent, excellent mechanical properties and heat resistance

Active Publication Date: 2018-05-29
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these are inventions mainly aimed at improving flame retardancy, and the resin composition described in Patent Document 3 has insufficient hydrolysis resistance, and the resin composition described in Patent Document 4 has the problem of insufficient heat resistance.

Method used

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  • Thermoplastic polyester resin composition and molded article
  • Thermoplastic polyester resin composition and molded article
  • Thermoplastic polyester resin composition and molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～84

[0237] [Examples 1-84], [Comparative Examples 1-10]

[0238] (A) thermoplastic polyester resin, (B) or (B' ) Novolac epoxy resin, (C) phosphorus stabilizer, (D) monofunctional epoxy compound, (E) reaction catalyst and other materials except glass fibers as required are contained in Tables 1 to 16. The components were mixed and added from the main feed section of the twin-screw extruder. (F-5) The glass fiber was added from between the main feed part and the vent part using the side feeder according to the content composition shown in Table 2, 8, and 15. Melt mixing was carried out under the extrusion conditions of a kneading temperature of 260° C. and a screw rotation speed of 150 rpm, and the resulting resin composition was discharged into strands, passed through a cooling bath, and pelletized by a strand pelletizer.

[0239] The obtained pellets were dried with a hot air dryer at a temperature of 110° C. for 6 hours, and then evaluated by the above-mentioned method. Tables...

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Abstract

An object of the present invention is to provide a thermoplastic polyester resin composition and a molded article thereof which are excellent in retention stability, have excellent mechanical properties and heat resistance, and further have excellent long-term hydrolysis resistance. In the thermoplastic polyester resin composition of the present invention, (B) specific biphenyl aralkyl type epoxy resin or dicyclopentadiene type epoxy resin is blended with respect to 100 parts by weight of (A) thermoplastic polyester resin. 0.1-10 parts by weight of resin.

Description

technical field [0001] The present invention relates to a thermoplastic polyester resin composition and a molded article obtained by molding the thermoplastic polyester resin composition. Background technique [0002] Thermoplastic polyester resins are used in a wide range of fields such as mechanical structural parts, electrical and electronic parts, and automotive parts, taking advantage of their excellent injection moldability and mechanical properties. However, since thermoplastic polyester resins are easily degraded by hydrolysis, in order to be used as industrial materials such as mechanical structural parts, electrical parts, electronic parts, and automotive parts, in addition to the balance of general chemical and physical properties, it is also required to have Long-term hydrolysis resistance. In addition, in recent years, along with miniaturization of molded products, the demand for thinner wall and lighter weight has increased. Molding failures such as flash and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/00C08L63/04
CPCC08L63/04C08G59/686C08G59/688C08G59/3218C08K5/49C08L63/00C08L67/02C08G59/06C08G63/82C08L2666/82C08L2201/08C08L2205/05
Inventor 东城裕介土川健太郎佐藤大辅熊泽贞纪
Owner TORAY IND INC
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