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Stabilizer composition for polyamide

A composition, polymer technology, applied in polyamide coatings, devices for coating liquids on surfaces, coatings, etc., can solve problems such as error reports and failures

Inactive Publication Date: 2011-12-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In currently known leadframe applications, the transmission control module (Getriebesteuermodulen) is used in reservoir tests and / or always and continuously during operation lead to the formation of conductive deposits on the lead frame (Stanzgitter) of the plastic injection molding package, which can cause short circuits or parallel connections and thus cause false reports and malfunctions

Method used

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  • Stabilizer composition for polyamide
  • Stabilizer composition for polyamide
  • Stabilizer composition for polyamide

Examples

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Embodiment Construction

[0035] figure 1 Shown is a metal lead frame 10 which is injection encapsulated with one embodiment of a polymer composition according to the invention and subsequently stored in oil at a constant temperature of 150° C. for about 1700 hours. The polymer composition here comprises polyamide PA66, 35% by weight of glass fibers, 0.1% by weight of copper(I) iodide and 1% by weight of potassium iodide.

[0036] figure 2 Shown is a metal lead frame 20 which is injection encapsulated with a conventional amine stabilized polyamide polymer composition and subsequently stored in oil at a constant temperature of 150°C for about 1700 hours.

[0037] like figure 1 and 2 shown, with figure 2 Different from the section 21 of the lead frame 20 shown in the conventional injection molding package, figure 1 The section 11 of the leadframe 10 injection-molded according to the invention shown in , forms significantly less conductive deposits.

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Abstract

The invention relates to a polymer composition comprising at least one thermoplastic polymer, especially polyamide, as a stabilizer composition for polyamides. The polymer composition comprises at least one copper halide and at least one alkali metal halide to reduce the formation of metal or metal-plastic composites 10 coated and / or injection-molded with the polymer composition. conductive deposits.

Description

technical field [0001] The present invention relates to stabilizer compositions for stabilizing thermoplastic polymers, especially polyamides, and polymer compositions of this type. Background technique [0002] In currently known leadframe applications, the transmission control module (Getriebesteuermodulen) is used in reservoir tests And / or during operation, it constantly leads to the formation of conductive deposits on the lead frame of the plastic injection molding package, which can lead to short circuits or parallel connections, and thus to false reports and faults. Contents of the invention [0003] The present invention relates to polymer compositions comprising at least one thermoplastic polymer, at least one copper halide and at least one alkali metal halide. The polymer composition here (as a thermoplastic polymer) can in particular comprise at least one polyamide, for example PA66. [0004] An advantage of the polymer composition according to the invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/06C08K3/24C09K3/10C09D177/00C09D177/06C09D7/12B05D7/24C09D7/61
CPCC09D177/00C08K3/16C09D7/1216C09D7/61C08L77/00
Inventor H·奥特G·卡默
Owner ROBERT BOSCH GMBH