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High temperature resistant insulating adhesive tape substrate material

A technology of insulating tape and high temperature resistance, which is applied in the direction of adhesives, film/sheet adhesives, etc., and can solve the problem of lack of insulating tape

Active Publication Date: 2015-12-30
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The prior art lacks an insulating tape base material that has heat resistance to support a temperature of about 105°C so that it can be safely used in newer generation cables that are currently being developed and marketed

Method used

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  • High temperature resistant insulating adhesive tape substrate material
  • High temperature resistant insulating adhesive tape substrate material
  • High temperature resistant insulating adhesive tape substrate material

Examples

Experimental program
Comparison scheme
Effect test

example

[0052] Examples and comparative examples provided below are provided to facilitate the understanding of the present invention, and these examples and comparative examples should not be construed as limiting the scope of the present invention. All parts and percentages are by weight unless otherwise indicated. The following illustrative examples and comparative examples were evaluated using the test methods and protocols described below.

[0053] material list

[0054]

[0055]

[0056] Four samples were prepared: Examples 1, 2 and 3 and Comparative Example 1. In addition, two formulations were prepared in which the CaCO3 filler was replaced by magnesia (composed of at least 88% MgO, supplied by Buschle & Lepper S.A.), such as 2, and aluminum silicate (composed of Al 2 o 3 , 2SiO 2 Composition, commercially available under the designation SAC100ZA, supplied by Imerys), eg 3. The compositions of the samples are shown in Table 3 and a description of the preparation o...

preparation example 1、2 and 3

[0060] 1. PVC resin, calcium / zinc (Ca / Zn) stabilizer, monomer plasticizer, polymer plasticizer, co-stabilizer, calcium carbonate (CaCO 3 ) or magnesium oxide or aluminum silicate, and antimony trioxide are added to the mixing device and treated at a temperature between 85°C and 105°C;

[0061] 2. Add the following components to the premix obtained in the previous step: nitrile rubber, antioxidant and black pigment and melt the material at a temperature comprised between 175°C and 195°C;

[0062] 3. Pour the mixture into homogenization equipment operating at a temperature between 170°C and 190°C;

[0063] 4. conveying the mixture to an extrusion device operating at a temperature between 170°C and 190°C, wherein said extrusion device feeds at least one calender;

[0064] 5. Processing the material in a calender until the desired thickness of the substrate is achieved, with a preferred thickness of 0.1 to 0.2 mm;

[0065] Subsequently, a water-based primer (synthetic and natura...

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Abstract

An insulating substrate material for adhesive tapes that is resistant to temperatures of up to about 105 DEG C for at least 20,000 hours and is intended, more specifically, for the preparation of insulating tapes that can be used in various types of applications including insulation of electrical wires. The invention further relates to the substrate composition of said insulating adhesive material and the method of manufacturing the same.

Description

technical field [0001] The present invention relates to an insulating base material for adhesive tapes, which withstands temperatures up to about 105°C for at least 20,000 hours and more particularly, is intended for use in the preparation of insulating tapes capable of being used in various types of applications , these applications include the insulation of electrical wires. The present invention also relates to substrate compositions. Background technique [0002] As known in the art, PVC (polyvinyl chloride) insulating tapes, so-called insulating tapes, are widely used in several industrial fields and several applications, such as the construction industry and the electrical field, due to their competitive cost. It should be mentioned, however, that the most widely known use of this type of insulating tape is in applications requiring electrical insulation of wires and cables, especially for the protection of joints in electrical installations, i.e. thermal energy relea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C08L27/06C08K3/26
CPCC08K2003/265C09J2427/006C08K5/098C09J7/245C08K3/26C09J2301/302C09J2301/41C08L27/06C08K3/2279C08K5/12C08K5/13C08K5/134C08K5/1515C09J127/06
Inventor 瓦内萨·科雷亚·阿兰特斯曼努埃拉·利马·凯罗斯·德·安德拉德·卡内科
Owner 3M INNOVATIVE PROPERTIES CO
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