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Thermoplastic rubber composition and molded product using same

A thermoplastic rubber and composition technology, which is applied in the field of thermoplastic rubber compositions, can solve problems such as difficult hardness control, and achieve the effect of easy hardness

Active Publication Date: 2016-03-16
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in conventional thermoplastic rubber compositions, it is not easy to control its hardness

Method used

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  • Thermoplastic rubber composition and molded product using same
  • Thermoplastic rubber composition and molded product using same
  • Thermoplastic rubber composition and molded product using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1-6

[0101] Various ingredients were mixed in a general mixer according to the composition (unit: parts by weight) summarized in Table 1 below.

[0102] The mixed thermoplastic rubber composition was stirred at a rate of 600 rpm at 40° C. for 10 minutes in a Henschel mixer, and then used a twin-screw extruder to form a pellet phase, wherein L / D=36 and Φ=45 mm, and An underwater cutter was used at a fixed temperature of 250°C and a screw speed of 300 rpm. The prepared particles were dried at 80°C for 2 hours. Subsequently, a PC sample previously prepared in a 10-ton injection molding machine in the first loop direction was installed in a mold, and a sample for performance measurement was produced by injection molding at an injection temperature of 200°C. Next, the properties of the samples were determined and the results are summarized in Table 1 below.

[0103] Table 1

[0104] [Table 1]

[0105]

[0106] The properties of the prepared samples were determined according to th...

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PUM

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Abstract

The present invention relates to a thermoplastic rubber composition, comprising, (A) with respect to 100 weight parts of a block terpolymer of an aromatic vinyl compound and an alkene compound, (B) 50-100 weight parts of paraffin oil, (C) 30-70 weight parts of an inorganic additive (D) 5-30 weight parts of a polyolefin-based resin, and (E) 30-70 weight parts of an acryl-based resin. The thermoplastic rubber composition has freely adjustable hardness, and has increased thermoplastic resin bond strength even without an adhesive since the bond strength, which is measured using UTM according to a KS M 6518 peeling test, is 2-4 N / mm.

Description

technical field [0001] The present invention relates to a thermoplastic rubber composition. More specifically, the present invention relates to a thermoplastic rubber composition that can strongly bond to polar resins without using an adhesive. In addition, the present invention includes a molded article produced from a composite thermoplastic resin comprising the thermoplastic rubber composition according to the present invention and a thermoplastic resin. Background technique [0002] The thermoplastic rubber composition is laminated on the thermoplastic resin molding in order to improve the impact-reducing effect, the anti-slip effect, or the texture of the molded article. [0003] Conventionally, a styrene-based thermoplastic rubber or an olefin-based rubber having excellent flexibility is laminated on a thermoplastic resin molding. [0004] In addition, the thermoplastic rubber composition may be laminated or bonded to a thermoplastic resin to produce a molded article...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08K5/01C08K3/00C08L23/10
CPCC08L53/02C08J5/00C08J2347/00C08J2423/08C08J2423/12C08J2433/10C08K3/00C08K5/01C08L53/025C08L2205/03C08L2207/04C08L23/10C08L33/04
Inventor 金政旭申赞均林钟喆
Owner LOTTE ADVANCED MATERIALS CO LTD
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