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Flame retardant polycarbonate resin composition

A technology of polycarbonate resin and composition, applied in the field of fireproof polycarbonate resin composition

Inactive Publication Date: 2011-06-29
CHEIL IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if creatine phosphate is used for the flame retardant, the amount of flame retardant must be increased to achieve an excellent flame retardancy rating

Method used

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  • Flame retardant polycarbonate resin composition
  • Flame retardant polycarbonate resin composition
  • Flame retardant polycarbonate resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8 and comparative example 1～4

[0073] The components shown in Table 1 were added to a conventional mixer, and the mixture was extruded through a conventional twin-screw extruder at a temperature range of 200-280° C. to prepare the product in the form of pellets. The pellets were dried at 80°C for 2 hours and then molded into flame retardancy test samples in an injection molding machine at 180-280°C using a molding temperature of 40-80°C. Flame retardancy is determined according to UL 94 VB by measuring the sum of the first and second burn times of 5 samples having a thickness of about 1 / 8″. According to ISO R 306 by measuring the VST (Vicat softening temperature) at 5 kg ) to determine the heat distortion temperature (heat deflection temperature).

[0074] Table 1

[0075]

[0076] As shown in Table 1, Examples 1 to 8 containing the phosphorus-containing compound of Formula I showed significantly improved flame retardancy and thermal deformation temperature and has a short burn time.

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Abstract

The present invention provide a flame retardant polycarbonate resin composition comprising: (A) about 30 to about 100% by weight of a polycarbonate resin; (B) about 0 to about 70% by weight of a rubber modified aromatic vinyl based copolymer resin; and (C) about 0.1 to about 40 parts by weight of a phosphorous compound or a combination of phosphorus compounds represented by the following Chemical Formula (I), per 100 parts by weight of a base resin comprising (A) and (B). The flame retardant polycarbonate resin composition of the present invention can have excellent flame retardancy and heat resistance. wherein R1, R2, R3, and R4 are each independently hydroxyl, phenol, phenyl, or C1-C4 alkyl; and n is independently an integer of 1 to 10.

Description

[0001] References to related applications [0002] This application claims priority from Korean Patent Application No. 2009-0132557 filed with the Korean Intellectual Property Office on December 29, 2009, the entire disclosure of which is incorporated herein by reference. technical field [0003] The invention relates to a fireproof (fireproof, flameproof, flameproof) polycarbonate resin composition. Background technique [0004] In general, polycarbonate and styrene resin blend compositions can provide improved processability while maintaining high notched impact strength. This resin blend composition should also have good flame retardancy and high mechanical strength when used in the production of large heat-emitting injection-molded products such as computer casings, office supplies, and the like. [0005] Halogen-containing flame retardants and antimony-containing compounds can be added to the resin composition to impart good flame retardancy. However, halogen-containi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L25/12C08K5/5357
CPCC08L51/04C08L2201/02C08K5/5357C08L69/00C08L55/02C08L2666/24C08J5/00C08K5/51
Inventor 李善爱裵壬赫周范俊
Owner CHEIL IND INC