Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flame retardant polycarbonate resin composition

A technology of polycarbonate resin and resin composition, applied in the field of flame retardant polycarbonate resin composition, can solve the problems of reduced transparency, reduced design space, reduced light transmittance and the like

Inactive Publication Date: 2008-12-03
TEIJIN KASEK KK
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the reduction in transparency, that is, the reduction in light transmittance, makes it difficult to color the transparent color, thereby reducing the overall design space including the part that feels and the coloring that imparts light diffusivity.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0163] Hereinafter, the present invention will be described in detail through examples. In addition, evaluation was performed by the following method.

[0164] (1) Flame retardancy: The pellets obtained by the following method were dried at 120° C. for 6 hours with a hot air dryer. Then, by an injection molding machine (IS150EN-5Y, manufactured by Toshiba Machinery Co., Ltd.), under the conditions of a cylinder temperature of 280° C. and a mold temperature of 60° C., a test piece for a UL94 combustion test with a thickness of 3 mm was molded, and the test piece was carried out. UL Specification 94 vertical burning test for evaluation. For the test pieces that do not meet any of the grades V-0, V-1, V-2, record it as not V.

[0165] (2) Haze: The particles obtained by the following method were dried at 120° C. for 6 hours with a hot air dryer. Then, using an injection molding machine (SG-150U, manufactured by Sumitomo Heavy Industries, Ltd.), under the conditions of a cylind...

Embodiment 1～23 and comparative example 1～5

[0168]In the polycarbonate resin powder produced by the interfacial polycondensation method from bisphenol A and phosgene, various additives were blended in the amounts recorded in the table, mixed with a mixer, and then extruded with a vented twin-screw extruder ( TEX30α (complete teeth, same direction of rotation, two-flight screw), manufactured by Nippon Steel Works, Ltd.) was melt-kneaded to obtain pellets. The additives were pre-mixed with the polycarbonate resin powder in advance using a Henschel mixer at a concentration 10 times the compounding amount, and then overall mixed with the mixer. Extrusion conditions were as follows: extrusion rate: 20 kg / h; screw rotation speed: 150 rpm; vacuum degree of the exhaust part: 3KPa; extrusion temperature: 260° C. from the first supply port to the extrusion die.

[0169] The content of each component represented by the symbol in a table|surface is as follows.

[0170] (A component)

[0171] PC-1: linear aromatic polycarbonate re...

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
Thicknessaaaaaaaaaa
Login to View More

Abstract

The target of this invention is to provide a fire resistance resin composite with a transparency in a certain range and excellent fire resistance. The fire resistance resin composite contains an aromatic polycarbonate resin (A component), a polyfluortetraethylene (B component) with ability of forming original fiber and a flame retardant (C component), wherein there are more than 0.01 part by weight but less than 0.1 part by weight of polyfluortetraethylene (B component) with ability of forming original fiber and 0.001 to 20 parts by weight of the flame retardant (C component) relative to the aromatic polycarbonate resin (A component) of 100 parts by weight.

Description

technical field [0001] The invention relates to a flame-retardant polycarbonate resin composition. More specifically, it relates to a flame-retardant polycarbonate resin composition excellent in transparency and flame retardancy. Background technique [0002] Since the aromatic polycarbonate resin not only has transparency or excellent heat resistance and strength but also has a certain flame retardancy, it is widely used in various fields. However, it cannot be said that the flame retardancy of aromatic polycarbonate resins is not as good as that of flame retardancy due to the improvement of flame retardancy requirements for electronic and electrical equipment parts, OA-related parts, etc., or the improvement of the flame retardancy level of products in recent years. Sex is very full. Moreover, recently, high flame retardancy conforming to V-0 in UL standard (Underwriters Laboratories Inc)-94 is required in many cases, and PC materials endowed with high flame retardancy a...

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
IPC IPC(8): C08L69/00C08L27/18C08K5/00C08K5/42
Inventor 大平洋二友田琢也品川佳久
Owner TEIJIN KASEK KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com