Unlock instant, AI-driven research and patent intelligence for your innovation.

Thermoplastic polyester resin composition and molded article thereof

A technology of thermoplastic polyester and resin composition, applied in the field of thermoplastic polyester resin composition, can solve the problems of reduced strength of molded products, cracks, environmental stress cracking, etc., and achieve the effect of excellent thermal shock resistance

Active Publication Date: 2021-03-16
TORAY IND INC
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the state where excessive strain is applied to the resin molded product by screw fastening, metal press-fitting, metal embedding, etc., if it is exposed to the above-mentioned alkaline environment for a long time, due to both the strain and the alkaline component Influenced by so-called environmental stress cracking, the strength of the molded product is reduced, and cracks are generated, so it becomes a problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermoplastic polyester resin composition and molded article thereof
  • Thermoplastic polyester resin composition and molded article thereof
  • Thermoplastic polyester resin composition and molded article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～20、 comparative example 1～5

[0138] According to the compounding compositions shown in Table 1 and Table 2, all the components (A), (B), (D), (E) and other additives are supplied from the main feeding part of the twin-screw extruder, and all of the other additives are supplied from the main feeding part. The (C) component was supplied to the auxiliary inlet between the inlet and the front end of the extruder, and a twin-screw extruder with a screw diameter of 37 mmφ (Toshiba Machine Co., Ltd. TEM37SS (trade name) with a cylinder temperature set to 250° C. )) Melt kneading was carried out. The strand discharged from the die was cooled in a cooling bath, and then pelletized by a strand pelletizer to obtain a resin composition. The obtained resin composition was evaluated by the above-mentioned method, and the obtained results are shown in Table 1 and Table 2.

[0139] [Table 1]

[0140]

[0141] [Table 2]

[0142]

[0143] From the results of Table 1 and Table 2, the following are clarified.

[01...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
epoxy equivalentaaaaaaaaaa
epoxy equivalentaaaaaaaaaa
epoxy equivalentaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a thermoplastic polyester resin composition obtained by adding, to 100 parts by weight of a thermoplastic polyester resin (A), 1-40 parts by weight of an elastomer (B), 15-100 parts by weight of a fibrous reinforcing material (C), 0.4-5 parts by weight of a silicone compound (D), and 0.1-10 parts by weight of an epoxy compound (E) having an epoxy equivalent of 200-400 g / eq. Provided are: a thermoplastic polyester resin composition having excellent alkali resistance, hydrolysis resistance, and thermal shock resistance; and a molded article comprising the same.

Description

technical field [0001] The present invention relates to a thermoplastic polyester resin composition excellent in alkali resistance, hydrolysis resistance, and thermal shock resistance. Background technique [0002] Thermoplastic polyester resins have excellent heat resistance, moldability, chemical resistance, and electrical insulation, so they are used in various automotive parts, electrical parts, mechanical parts, and construction parts, mainly for injection molding. . In such uses, for example, toilet detergents, bleaches, bath detergents, deicing agents, car cleaners, and the like may frequently come into contact. Since these agents contain sodium hydroxide, sodium hypochlorite, sodium percarbonate, calcium chloride, etc. as their components, resin molded articles are exposed to alkaline environments. [0003] In the state where excessive strain is applied to the resin molded product by screw fastening, metal press-fitting, metal embedding, etc., if it is exposed to t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K7/14C08L23/08C08L63/04C08L83/04
CPCC08K7/14C08L67/02C08L2205/035C08L71/02C08L63/04C08G77/04C08L23/0869C08L63/00C08L83/04C08L23/0884C08K7/10C08L2201/08C08L2203/30C08L2207/04
Inventor 山川隆行前田恭雄锅谷光太
Owner TORAY IND INC