Thermoplastic resin composition, method for preparing same, and molded article

A thermoplastic resin and composition technology, applied in the field of thermoplastic resin composition, its preparation and molded products containing it, can solve the problems of poor chemical resistance and achieve the effect of maintaining mechanical properties and excellent chemical resistance

Pending Publication Date: 2022-05-17
LG CHEM LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PC / ABS material is amorphous, as its inherent property, PC / ABS material has poor chemical resistance, which limits its use

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 resin composition, method for preparing same, and molded article
  • Thermoplastic resin composition, method for preparing same, and molded article
  • Thermoplastic resin composition, method for preparing same, and molded article

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] A method for preparing a polyester resin commonly used in the field to which the present invention pertains may be used to prepare the polyester resin (A) without particular limitation.

[0043] (B) Vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer

[0044] For example, based on the total weight of the thermoplastic resin composition, the content of the vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (B) may be 20% by weight to 32% by weight, preferably 22% by weight. % by weight to 32% by weight, more preferably 24% by weight to 32% by weight. Within this range, chemical resistance, processability, injection moldability, and injection stability may be excellent while maintaining mechanical properties, thermal stability, and frictional noise resistance.

[0045] For example, the vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (B) may be 1 wt% to 20...

Embodiment 1 to Embodiment 11 and comparative example 1 to comparative example 6

[0152] According to the contents shown in Table 1 to Table 3 below, the components shown in Table 1 to Table 3 were charged into the extruder (42ψ) to obtain pellets, and the pellets were injected to obtain sample.

experiment example

[0154] The properties of the samples prepared in Examples 1 to 11 and Comparative Examples 1 to 6 were measured according to the following methods, and the results are shown in Tables 1 to 3 below.

[0155] Measurement methods

[0156] * Fluidity (melt flow rate): According to ISO 1133, the fluidity is measured at 230° C. for 10 minutes under a load of 10 kg. Here, the unit of fluidity is "g / 10min".

[0157] * Izod impact strength (kJ / m 2 ): According to ISO 180 / 1A, the Izod impact strength is measured at 23°C using notched specimens.

[0158] *Tensile strength (MPa): According to ISO 527, the tensile strength was measured at 50mm / min.

[0159] *Bending strength (MPa) and flexural modulus (MPa): According to ISO 178, using a specimen with a thickness of 1 / 8", under the conditions of a span of 64mm and a test speed of 2mm / min, the bending strength and flexural strength were measured modulus.

[0160] *Heat distortion temperature (°C): According to ISO 75, the heat distor...

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
bending strengthaaaaaaaaaa
bending strengthaaaaaaaaaa
flexural modulusaaaaaaaaaa
Login to view more

Abstract

The present invention relates to a thermoplastic resin composition, a method for preparing the same, and a molded article comprising the same. More specifically, the present invention relates to a thermoplastic resin composition, a method for preparing the same, and a molded article comprising the same, the thermoplastic resin composition comprising: 20% to 42% by weight of a polyester resin (A); 20 wt% to 32 wt% of a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (B); and 30 wt% to 48 wt% of an aromatic vinyl compound-vinyl cyanide compound copolymer (C). The present invention has the effects of providing a thermoplastic resin composition which has excellent environmental stress cracking (ESC), processability, injection moldability, injection stability, and economical efficiency while maintaining mechanical properties, thermal stability, and friction noise resistance equal to or superior to conventional heat-resistant ABS resin compositions, and thus is suitable for use in automotive interior materials; a method of preparing the same and a molded article comprising the same are provided.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims Korean Patent Application No. 10-2020-0109155 filed on August 28, 2020 at the Korean Intellectual Property Office and Korean Patent Application No. 10 refiled on July 7, 2021 based on the priority of the above patent - Priority of 2021-0088900, the disclosures of each of these two patent applications are incorporated herein by reference. [0003] The present invention relates to a thermoplastic resin composition, a method for producing the same, and a molded article comprising the thermoplastic resin composition. More specifically, the present invention relates to a thermoplastic resin composition which is excellent in environmental stress cracking (ESC), processability, injection moldability, injection stability and economy while remaining equal to or better than conventional heat-resistant ABS Mechanical properties, thermal stability, and friction noise resistance of the resin ...

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): C08L55/02C08L25/12C08L67/02B29C48/80
CPCC08L55/02C08L25/12C08L67/02B29C48/80C08L2205/03B29C45/0001B29K2009/06B29K2067/006C08G63/183C08L2201/08C08L2203/30
Inventor 高建权泰勋田露朴在燦
Owner LG CHEM LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap