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Flameproof, aliphatic polyketone materials, moulded articles produced therefrom and also method for the production thereof

An aliphatic polyketone, polyketone technology, applied in the field of phosphinate, halogen-free fireproof molding material, can solve the problem of non-prevention and so on

Active Publication Date: 2017-06-30
EMS PATENT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] According to JP11-181080, additives such as alumina or magnesia can indeed improve the flow behavior during processing, but they do not prevent the formation of volatile compounds due to polyketone decomposition

Method used

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  • Flameproof, aliphatic polyketone materials, moulded articles produced therefrom and also method for the production thereof
  • Flameproof, aliphatic polyketone materials, moulded articles produced therefrom and also method for the production thereof
  • Flameproof, aliphatic polyketone materials, moulded articles produced therefrom and also method for the production thereof

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Embodiment Construction

[0091] Preferred embodiments of the invention are described below with reference to embodiments given by way of illustration, which are for illustration only and are not to be construed as limiting.

[0092] Preparation of polyketone molding compound:

[0093] The raw materials of components (A), (C) and (D) were premixed and fed by weight into a twin-screw extruder of type ZSK25 (Werner and Pfleiderer). Component (B) was metered into the melt via a sub-feeder by 4 shell units before discharge. Processing was performed at a cylinder temperature of 200°C to 270°C, with a rotary screw speed of 200 rpm and a throughput of 10 kg / hour. The compound is discharged through a nozzle and pelletized after cooling the wire. Drying was then carried out in vacuum at 100° C. for 24 hours.

[0094] Preparation of molded articles:

[0095] The production of the molded articles was carried out on an injection molding machine Arburg Allrounder 420C-1000-250 in the rising cylinder tempera...

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Abstract

The present invention relates to polyketone moulding compounds based on partially crystalline, aliphatic polyketones. In particular, it relates to halogen-free, flameproof moulding compounds based on aliphatic polyketones which preferably comprise salts of phosphinic acids as flame retardant. The moulding compounds fulfil the fire protection classification V0 according to UL94 and display good mechanical properties. These moulding compounds are suitable for the production of in particular thin-walled moulded articles for the electrical and electronics industry, such as for example housings, housing components or connectors.

Description

technical field [0001] The invention relates to polyketone molding materials based on partially crystalline aliphatic polyketones. In particular, it relates to halogen-free fireproof molding materials based on aliphatic polyketones, which preferably contain phosphinates as flame retardants. The molding material meets fire class V0 according to UL94 and exhibits good mechanical properties. These molding materials are suitable for the production of thin-walled molded articles such as housings, housing parts or connectors, especially for the electrical and electronics industry. Background technique [0002] Aliphatic polyketones have been known for many years and are characterized by virtually unchanged mechanical properties from 10°C to 100°C, very good hydrolysis resistance, high thermal dimensional stability, good wear and tear resistance and good fuel barrier features. [0003] On the other hand, although aliphatic polyketones represent thermoplastic materials with very ...

Claims

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Application Information

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IPC IPC(8): C08L73/00C08K13/04C08K7/14C08K5/524C08K5/5393
CPCC08K5/524C08K5/5393C08K7/14C08K13/04C08L73/00C08K5/13C08G67/00C08G67/02C08K5/5317C08K5/5313C08K3/013C08G2/26C08K7/02C08L2201/22C08L2201/02C08L2666/82
Inventor 乔治·施特佩尔曼
Owner EMS PATENT AG
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