Thermoplastic resin composition and molded product

一种热塑性树脂、组合物的技术，应用在热塑性树脂组合物及成型物领域，能够解决没有涉及聚碳酸酯/聚乳酸组合物耐水解性等问题

Inactive Publication Date: 2008-01-09
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Document 2, the hydrolysis resistance of the polycarbonate / polylactic acid composition is not mentioned, and the impact resistance needs to be further improved.

Method used

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  • Thermoplastic resin composition and molded product
  • Thermoplastic resin composition and molded product
  • Thermoplastic resin composition and molded product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～3

[0123] The components (A) to (C) were mixed according to the ratio shown in Table 1, and supplied to a bent type (benttype) two-axis extrusion molding machine (model name TEM35, manufactured by Toshiba Machine Co., Ltd.), at 240°C Melt kneading to make granules. In addition, in all Examples and Comparative Examples, 0.1 parts by mass of a phosphorus-based antioxidant (manufactured by Asahi Denka Industry Co., Ltd., trade name "Adecastab PEP-36") and a phenolic antioxidant Irganox 1076 (Chiba. Specialty Chemicals, trade name) was used as a stabilizer.

[0124] The obtained pellets were dried at 100° C. for 10 hours, and then injection molded at a molding temperature of 240° C. (mold temperature 40° C.) to obtain test pieces using the resins of the corresponding examples and comparative examples. Using the obtained test piece, the performance was evaluated respectively according to the above-mentioned performance evaluation method.

[0125] Table 1

[0126] Example...

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Abstract

This invention provides a thermoplastic resin composition comprising 100 parts by mass of a polycarbonate resin composition, comprising 50 to 95% by mass of a polycarbonate resin (A) and 50 to 5 parts by mass a polylactic acid resin (B), and 5 to 65 parts by mass of a vinyl graft copolymer (C). The thermoplastic resin composition can provide a molded product which has been improved in hydrolysis resistance and further improved in impact resistance and small-thickness falling weight impact strength over a resin composition comprising a polycarbonate resin and a polylactic acid resin having polycarbonate-derived mechanical properties and polylactic acid-derived excellent fluidity. By virtue of these improved properties, the use of plastic molded products for a long period of time can be realized, small-thickness product moldability and portability can be improved, and the composition can also be advantageously used in large molded products on a commercial scale. In the thermoplastic resin composition, when a polycarbonate-polyorganosiloxane copolymer is used as a polycarbonate resin component, the flame retardance can also be improved, and, thus, the composition can be advantageously used, for example, in OA equipment, information and communication equipment, automotive parts, building members, and domestic appliances.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition and a molded article having excellent mechanical strength, moisture resistance and fluidity. More specifically, it relates to a resin composition containing a polycarbonate resin and a polylactic acid-based resin, which has greatly improved hydrolysis resistance, and which is excellent in lamella dart impact strength and Ischia impact strength as mechanical strength, and the resin composition obtained from the resin composition. formed moldings. The thermoplastic resin composition of the present invention can be applied to the field of electrical and electronic equipment such as OA equipment, information and communication equipment, and household appliances, or the field of automobiles and construction. Background technique [0002] Polycarbonate resin has been applied in many fields due to its excellent mechanical properties such as impact resistance, excellent heat resistance and tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L67/04C08L101/16
CPCC08L51/04C08L69/00C08L83/10C08L55/02C08L67/04C08L2666/02C08J5/00C08J2300/22
Inventor 早田祐介野寺明夫
Owner IDEMITSU KOSAN CO LTD
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