Filled polyamide molding material with low water absorption rate

A technology for filling polyamide, polyamide molding, used in transmission systems, electrical components, etc.

Inactive Publication Date: 2008-08-13
EMS CHEM AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the water absorption of the mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] Table 1 characterizes the materials used in Examples and Comparative Examples.

[0053] Table 1

[0054] Material

Product name

Relative viscosity, 20℃,

0.5wt.-% meta-formazan

phenol

Component weight ratio

manufacturer

PA 614

-

1.93

-

EMS-CHEMIE

AG, Switzerland

PA6I / 6T

GRIVORY G21

1.52

2 / 1

EMS-CHEMIE

AG, Switzerland

[0055] glass fiber

Vetrotex

EC10-4, 5MM

99B

-

-

Saint-Gobain

Vetrotex, France

carbon fiber

Tenax

HTA 5N51 6MM

-

-

Toho Tenax

Europe GmbH,

Germany

potassium carbonate

Millicarb-OG

-

-

Plüss-Staufer

AG, Switzerland

PA66

Radipol A45

2.7

in H 2 SO 4 middle, 1

wt.-%

-

Radi...

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PUM

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Abstract

The present invention relates to filled polyamide molding materials, in particular polyamide molding materials with medium filler content, which are producible from a polyamide blend and for example by compounding with chopped or endless fibers on two-screw extruders, and have a combination of reduced water absorption and good mechanical properties, which results in very good dimensional stability and reduced variation of the electrical properties of the produced molded part, such as an antenna housings of stationary or mobile communication devices. The thermoplastic polyamide molding materials according to the present invention are suitable for manufacturing molded parts and other semi-finished or finished parts, for example by extrusion, injection molding, pressing, direct process or direct compounding, respectively, wherein the compounded polyamide molding material is directly processed by injection molding or other shaping methods.

Description

technical field [0001] The present invention relates to filled polyamide molding materials, especially polyamide molding materials with a moderate filler content, which are produced from polyamide mixtures and, for example, on a twin-screw extruder by mixing with chopped fibers or Manufactured from a mixture of endless fibers and exhibits a combination of reduced water absorption and good mechanical properties, which leads to excellent dimensional stability of the molded parts produced, e.g. antenna housings for fixed or mobile communication devices And the change of electrical properties is reduced. [0002] The thermoplastic polyamide molding materials according to the invention are suitable for the production of molded parts and other semi-finished or finished parts, for example produced by extrusion, injection molding, stamping, direct processing or direct mixing, respectively, wherein the mixed polyamide injection molding materials Direct processing by injection molding ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K7/00C08J5/00H04B1/02H04B1/08B29B7/90
CPCC08L77/06C08L77/02C08L77/04C08L77/10C08L2205/02C08L2666/20C08L77/00C08K7/04C08J5/00C08K3/00
Inventor 奥纳夫·雷克辛艾蒂安·艾佩里
Owner EMS CHEM AG
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