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Method for producing adhesive tape and adhesive tape obtained through the same

A tape and adhesive technology, applied in the direction of adhesive heating, bonding method, adhesive, transportation and packaging, etc., can solve the problem of error-prone processing

Inactive Publication Date: 2019-07-05
TESA SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such processing is error-prone and requires additional and specific equipment

Method used

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  • Method for producing adhesive tape and adhesive tape obtained through the same
  • Method for producing adhesive tape and adhesive tape obtained through the same
  • Method for producing adhesive tape and adhesive tape obtained through the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] The adhesive composition used for the experiments was a rubber adhesive composition manufactured by:

[0043] - 43.0% by weight of natural rubber (SVR 3L type)

[0044] - 51.0% by weight of Dertophene T 105 and

[0045] - 6.0% Wingtack 10 by weight.

[0046] The production takes place in a planetary roller extruder with three rollers, each roller being equipped with 6 planetary shafts. The rotational speed of the central shaft was set at 100 rpm. A premix is ​​produced from the individual components and metered into the filling section of the planetary roller extruder via a volumetric metering device. The temperature control loops of the central shaft and filling section are cooled by water; each roll section is heated at 100°C. The temperature of the emerging composition was 112°C.

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PUM

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Abstract

The invention relates to a method for producing an adhesive tape, and an adhesive tape obtained through the same. The method for producing an adhesive tape by coating a carrier material in web form with a solvent-free adhesive composition, wherein immediately prior to the coating of the carrier material with the adhesive composition, the surface of the adhesive composition or the surface of the carrier material or the surface both of the adhesive composition and of the carrier material is heated by introduction of heat to a temperature of at least 30 DEG C. above the processing temperature, has the effect that the adhesive composition is significantly better anchored on the carrier. For an adhesive tape produced in this way, a boost in the anchorage by up to 60% can be achieved. The penetration of the composition into carriers, especially rough carriers, can take place very much more easily under the conditions of the high temperatures and is controllable by means of the temperature regime.

Description

technical field [0001] The present invention relates to a process for the manufacture of adhesive tapes by coating a carrier material in the form of a web with a solvent-free adhesive composition. Background technique [0002] With such a solvent-free adhesive composition (also referred to as hotmelt), a carrier material (in particular a rough (rough) carrier material such as Woven fabrics, nonwoven fabrics or paper supports) are known. In such operations, especially when high-viscosity adhesive compositions are used, there can be problems with respect to the anchoring of the adhesive composition on the carrier material and the transfer to the carrier material, respectively. From a performance and process point of view, this results in disadvantages, examples of which are residues and / or inability to transfer the adhesive composition to the carrier. It follows that the material may only be further processed with considerable difficulty and / or may not meet customer requirem...

Claims

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Application Information

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IPC IPC(8): C09J7/21C09J7/38C09J107/00
CPCC09J7/21C09J7/383C09J107/00C09J2400/263C09J2407/00C09J2301/122C09J2301/302C09J5/06C09J7/35C09J2301/50C09J2301/40B65H2401/14B65H51/04B65H2401/13
Inventor T.沙贝尔纳克O.贝克特M.扎杰曼G.沃格特C-G.霍尔格
Owner TESA SE