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Extrusion die, methods of coating a wire core, and a coated wire by the extrusion die and methods

A technology for coating wire, extrusion dies, and applications in coating, shipping and packaging, cable/conductor manufacturing, etc.

Inactive Publication Date: 2013-08-28
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no progress has been made in removing wrinkles

Method used

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  • Extrusion die, methods of coating a wire core, and a coated wire by the extrusion die and methods
  • Extrusion die, methods of coating a wire core, and a coated wire by the extrusion die and methods
  • Extrusion die, methods of coating a wire core, and a coated wire by the extrusion die and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0372] In the die of Example 1, the exit channel 416 had a length B of 6 mm and an inner diameter (Y) of 5 mm. The length A of the wire coating channel 436 is 4 mm. The length C of the protruding end 446 of the inner die 440 was 9 mm, and the outer diameter (X) of the protruding end 446 was 4.4 mm and the inner diameter was 3.8 mm. In addition, when the inner die 440 was placed in the outer die 410, the length (D) of the protruding end portion 446 located outside the exit passage 416 was 7 mm in length. Likewise, the conical interior space 412 of the outer die 410 has a taper of 55°, while the conical front end of the inner die 440 has a taper of 32°.

Embodiment 2

[0374] In the die of Example 2, the exit channel 416 had a length B of 6 mm and an inner diameter (Y) of 5.6 mm. The length A of the wire coating channel 436 is 6 mm. The length (C) of the protruding end 446 of the inner die 440 was 9 mm, and the outer diameter (X) of the protruding end 446 was 4.6 mm and the inner diameter was 3.8 mm. In addition, when the inner die 440 was placed in the outer die 410, the length (D) of the protruding end portion 446 located outside the exit passage 416 was 9 mm. Likewise, the conical interior space 412 of the outer die 410 has a taper of 54°, while the conical front end of the inner die 440 has a taper of 31°.

[0375] II. Composition Examples

[0376] The following examples were prepared using the materials listed in Table 1.

[0377] Table 1

[0378]

[0379] Compositions were prepared from the recipes shown in Table 2. There are several ways of preparing the composition by using equipment such as extruders or kneaders, usually ...

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Abstract

This disclosure relates to a coated wire, an extrusion die, a process of coating a wire and a method of testing wrinkles on covering of a coated wire. A coated wire comprises a wire core; and a covering comprising a thermoplastic composition which comprises by weight of total composition, (i) 10% to 50% of a poly(arylene ether); (ii) 5% to 25% of a polyolefm; and (iii) 15% to 45% of an impact modifier. The wrinkles presented on the covering of a coated wire manufactured by an extrusion die are substantively reduced.

Description

[0001] The application of the present invention is based on the application date of February 08, 2008, the application number is 200880004585.7 (the international application number is PCT / US2008 / 053432), and the title of the invention is "extrusion die head, method for coating wire core, and A divisional application of the patent application "Coated wire prepared by said extrusion die and method". Background of the invention [0002] The present disclosure relates to extrusion dies, extrusion apparatus including the extrusion die, methods of coating a wire core, coating the wire and testing the coated wire for wrinkles on the covering (covering) method. [0003] Polyvinyl chloride resins have long been used in the coated wire and cable industry as thermoplastic sheaths for electrical insulation. There is growing concern about the environmental impact of halogenated materials, and non-halogenated alternatives are being explored. This quest has met with some success in polyet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/02B29C47/20B29C47/28H01B3/42H01B3/44H01B13/14C08L71/12C08L23/00B29C48/06B29C48/32B29C48/34
CPCH01B3/427H01B3/441H01B13/144B29C48/15B29C48/06B29C48/154B29C48/32B29C48/34Y10T428/294
Inventor 奥利弗.吉斯孔欣李秀错詹姆斯.J.许姚维广
Owner SABIC GLOBAL TECH BV