Polycarbonate resin composition with improved compatibility having good scratch resistance and transparency and product thereof

A technology of polycarbonate resin and composition, applied in the field of polycarbonate resin composition, can solve the problems of high turbidity, processing cost, large processing time, high turbidity growth rate, low transparency, etc., and achieves good appearance. Effect

Active Publication Date: 2016-06-01
LOTTE CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to U.S. Published Patent No. 2012-0121845, coating silica nanoparticles on polycarbonate substrates increases surface hardness, however, involves processing costs due to secondary processing of the coating, consumes a large amount of processing time, and is expensive. Disadvantages of Turbidity Growth Rate
[0007] U.S. Patent No. 8,088,849 discloses a technique for polycarbonate substrates using ether phosphoric acid compounds and halogen compounds to increase surface hardness and flame retardancy while maintaining transparency, however, gases harmful to humans are generated during combustion due to halogen compounds Shortcomings
[0008] In Korean Laid-Open Patent No. 2009-0039612, a methacrylic acid copolymer resin composition was used to improve scratch resistance, but disadvantages of high turbidity and low transparency occurred

Method used

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  • Polycarbonate resin composition with improved compatibility having good scratch resistance and transparency and product thereof
  • Polycarbonate resin composition with improved compatibility having good scratch resistance and transparency and product thereof
  • Polycarbonate resin composition with improved compatibility having good scratch resistance and transparency and product thereof

Examples

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preparation example Construction

[0032] The preparation of polycarbonate resin can follow common preparation methods. For example, the polycarbonate resin can be produced by reacting a dihydric phenol compound with phosgene in the presence of a molecular weight regulator and a catalyst, or by transesterification of a dihydric phenol compound with a precursor derived from diphenyl carbonate.

[0033] Herein, the dihydric phenol compound may be a bisphenol compound, and may preferably be bisphenol A (2,2-bis(4-hydroxyphenyl)propane). In this case, bisphenol A may be partially or completely replaced by other types of dihydric phenol compounds. For example, hydroquinone, 4,4-dihydroxybiphenyl, bis(4-hydroxyphenyl)methane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 2,2-bis(3, 5-Dimethyl-4-hydroxyphenyl)propane, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4- Hydroxyphenyl) ketone, bis(4-hydroxyphenyl)ether, 2,2-bis(3,5-dibromo-4-hydroxyphenyl)propane, etc.

[0034] The ...

Embodiment 1

[0063] 70 parts by weight of polycarbonate resin (bisphenol A type, weight average molecular weight 25,000), 30 parts by weight of methacrylic acid copolymer resin (H-880, Mitsubishirayon ), and 0.05 parts by weight of N,N'-ethylene bis(stearamide), and use a twin-screw extruder (screw diameter 26mm, L / D=40) at an extrusion temperature of 270-300°C and A pellet-type polycarbonate resin composition was prepared under extrusion conditions of a screw rotation speed of 200 rpm.

Embodiment 2

[0065] The same procedure as in Example 1 was followed except that 0.1 part by weight of N,N'-ethylene bis(stearamide) was mixed to produce a pellet type polycarbonate resin composition.

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Abstract

The invention discloses a polycarbonate resin composition with improved compatibility having good scratch resistance and transparency and a product thereof. In order to solve a restriction that separation of polycarbonate and methacrylic acrylic copolymer caused by feature difference on a high-temperature and high-pressure processing condition, a specific additive is used and thus a transparent polycarbonate resin composition with high hardness and machinability and a product using the same are expanded. The polycarbonate resin comprises: 50wt% to 90wt% of polycarbonate resin, 10wt% to 50wt% of methacrylic acrylic copolymer resin with weight-average molecular weight from 200 to 3000g / mol, and 0.001 to 1 part, by weight, of amide stabilizer based on a 100 parts, by weight of polycarbonate resin and methacrylic acrylic copolymer resin, and a product using the same.

Description

technical field [0001] The present disclosure relates to a polycarbonate resin composition, and more particularly, to a polycarbonate resin composition that expands the use range of a transparent polycarbonate material having high hardness, and a product using the same. Background technique [0002] Polycarbonate resin has good impact resistance and mechanical properties (mechanical properties, mechanical property), and exhibits high transparency, good dimensional stability, extensive coloring properties, and the like. According to the recent trend of cost reduction, enlargement and weight reduction of electrical and electronic products, commonly used glass or metal materials are rapidly replaced by plastic products made of polycarbonate resin, and its use is expanded to automotive parts and electrical and electronic products . Therefore, when compared with commonly used materials, functions and appearances as exterior materials become more and more prominent, and performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/10C08K5/20
CPCC08J3/20C08J5/00C08K5/005C08K5/20C08L33/10C08L69/00
Inventor 张炳玉金珍浩朴伶官林秉勋朴相炫李东雨
Owner LOTTE CHEM CORP
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