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Hot-press adhesive tape

A technology of tape and hot-melt adhesive layer, which is applied in the field of hot-pressed adhesive tape, can solve the problems of capacitor residue and easy degumming, and achieve the effects of good retention, good toughness, and high tensile strength

Active Publication Date: 2014-02-05
HUIZHOU XINHAOYUAN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the existing hot-pressing tape is peeled off, it is easy to degumming, resulting in a large amount of residual glue on the surface of the capacitor

Method used

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  • Hot-press adhesive tape

Examples

Experimental program
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Effect test

Embodiment 1

[0034] like figure 1 As shown, the heat-pressing adhesive tape provided by the present invention includes a PET film layer 1 , a first hot-melt adhesive layer 2 , and a second hot-melt adhesive layer 3 from top to bottom. The formula of the first hot-melt adhesive layer is: 40 parts of ethylene-vinyl acetate copolymer, its vinyl acetate monomer content is 10%, and its MI value is 380; 60 parts of saturated polyester resin; four (3,5 -0.4 parts of pentaerythritol di-tert-butyl-4-hydroxy)phenylpropionate. The formula of the second hot-melt adhesive layer is: 79 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 28%, and its MI value is 35; 10 parts of petroleum resin; 10 parts of paraffin; four (3, 1 part of pentaerythritol 5-di-tert-butyl-4-hydroxy)phenylpropionate. The thickness of the PET film layer is 50 μm; the thickness of the first hot melt adhesive layer is 10 μm; the thickness of the second hot melt adhesive layer is 20 μm. After the h...

Embodiment 2

[0036] like figure 1 As shown, the heat-pressing adhesive tape provided by the present invention includes a PET film layer 1 , a first hot-melt adhesive layer 2 , and a second hot-melt adhesive layer 3 from top to bottom. The formula of the first hot-melt adhesive layer is: 48 parts of ethylene-vinyl acetate copolymer, its vinyl acetate monomer content is 10%, and its MI value is 380; 67 parts of saturated polyester resin; four (3,5 -1 part of pentaerythritol di-tert-butyl-4-hydroxy)phenylpropionate. The formula of the second hot-melt adhesive layer is: 89 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 28%, and its MI value is 35; 5 parts of petroleum resin; 15 parts of paraffin; four (3, 2 parts of pentaerythritol 5-di-tert-butyl-4-hydroxy)phenylpropionate. The thickness of the PET film layer is 45 μm; the thickness of the first hot melt adhesive layer is 12 μm; the thickness of the second hot melt adhesive layer is 25 μm. After the heat...

Embodiment 3

[0038] like figure 1 As shown, the heat-pressing adhesive tape provided by the present invention includes a PET film layer 1 , a first hot-melt adhesive layer 2 , and a second hot-melt adhesive layer 3 from top to bottom. The formula of the first hot-melt adhesive layer is: 27 parts of ethylene-vinyl acetate copolymer, its vinyl acetate monomer content is 10%, and its MI value is 380; 48 parts of saturated polyester resin; four (3,5 -0.5 parts of pentaerythritol di-tert-butyl-4-hydroxy)phenylpropionate. The formula of the second hot-melt adhesive layer is: 70 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 28%, and its MI value is 35; 12 parts of petroleum resin; 6 parts of paraffin; four (3, 0.7 parts of pentaerythritol 5-di-tert-butyl-4-hydroxy)phenylpropionate. The thickness of the PET film layer is 53 μm; the thickness of the first hot melt adhesive layer is 9 μm; the thickness of the second hot melt adhesive layer is 18 μm. After the ...

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Abstract

The invention relates to an adhesive tape, and particularly relates to a hot-press adhesive tape. A polyethylene terephthalate (PET) film, a first hot melt adhesive layer and a second hot melt adhesive layer are orderly arranged on the hot-press adhesive tape from top to bottom; the first hot melt adhesive layer is prepared from the following components in parts by weight: 25-50 parts of ethylene-vinylacetate copolymer, 45-70 parts of saturated polyester resin, and 0.2-1 part of anti-ageing agent; the second hot melt adhesive layer is prepared from the following components in parts by weight: 65-90 parts of ethylene-vinylacetate copolymer, 5-15 parts of petroleum resin, 5-15 parts paraffin wax and 0.5-2 parts of anti-ageing agent. The hot-press adhesive tape disclosed by the invention is good in retentivity, free of residual glue, good in toughness, good in tensile effect, high in tensile strength, and free of rupture phenomenon. Furthermore, the hot-press adhesive tape disclosed by the invention is small in thickness; the overall length of the overall adhesive tape can be up to over 1000m; the production efficiency can be greatly improved; the production cost can be greatly reduced.

Description

[0001] technical field [0002] The invention relates to an adhesive tape, in particular to a heat-pressing adhesive tape. [0003] Background technique [0004] Hot pressing tape is also called hot melt tape. It is different from pressure-sensitive tapes. At room temperature, heat-pressed tapes do not show pressure-sensitive adhesiveness, but have anti-blocking properties; however, after instant high-temperature heat-pressing, they produce 10 times the adhesive force of pressure-sensitive tapes . [0005] Most of the existing heat-pressing tapes use PET film as the base material, and the surface is coated with high-performance hot-melt adhesive to form a tape-shaped roll product. It is mostly used as a mask for capacitor braiding required for electrical assembly and gold spraying on the end faces of metallized film capacitors. However, after the existing hot-pressing tape is peeled off, it is easy to degumming, resulting in a large amount of residual glue on the surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J123/08C09J167/00
Inventor 江日新
Owner HUIZHOU XINHAOYUAN DEV
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