Unlock instant, AI-driven research and patent intelligence for your innovation.

Adhesive strips

A pressure-sensitive tape and adhesive technology, applied in the direction of pressure-sensitive film/sheet, adhesive, adhesive additive, etc., to achieve the effect of high impact resistance

Active Publication Date: 2018-10-02
TESA SE
View PDF12 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mobile equipment is also exposed to higher loads due to humidity influences, temperature influences, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adhesive strips
  • Adhesive strips
  • Adhesive strips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0284]Described below is the preparation of pressure-sensitive adhesive tapes according to the invention comprising a film carrier formed of PET with different thicknesses and a layer of self-adhesive composition (SKMS) with different contents of Expancel 920DU20 microspheres. For this, a 40% strength by weight adhesive in petrol / toluene / acetone was first prepared from 50.0% by weight of Kraton D1102AS, 45.0% by weight of Dercolyte A115, 4.5% by weight of Wingtack 10 and 0.5% by weight of antiaging agent Irganox 1010 solution. The weight content of the dissolved constituents relates here in each case to the dry weight of the solution obtained. The composition of the mentioned adhesives is characterized as follows:

[0285] Kraton D1102AS: Styrene-butadiene-styrene-triblock copolymer from Kraton Polymers with 17 wt% diblock, block polystyrene content: 30 wt%

[0286] Dercolyte A115: Solid alpha-pinene tackifying resin with a Ring and Ball softening temperature of 115°C and a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a pressure sensitive adhesive strip having the impact resistance improved not only in a x,y-plane but also in a z-plane. A pressure-sensitive adhesive strip includes at least: an inside layer F formed of a non-stretchable film carrier; a layer SK1 that has a vinyl aromatic block copolymer composition arranged on one surface of the film carrier layer F and obtained by foamingwith a microballoon as a base and made of a self-adhesive agent; and a layer SK2 that has a vinyl aromatic block copolymer composition arranged on a surface of the film carrier layer F on the side opposite to the layer SK1 and obtained by foaming with a microballoon as a base and made of a self-adhesive agent, in which average diameters of hollow spaces formed from microballoons in the self-adhesive layer SK1 and SK2 are independently from each other 20 to 60 [mu]m.

Description

technical field [0001] The present invention relates to pressure-sensitive adhesive tapes (pressure-sensitive adhesive strips). Background technique [0002] Adhesive tapes are commonly used, for example, for the bonding of tiny components in devices in the consumer electronics industry. To achieve this, it is necessary to adapt the shape of the tape segment to the shape of the component. Here, even difficult-to-achieve (schwierig) geometries are often required, which are obtained by stamping the adhesive tape. Therefore, a web width (tab width) of a few millimeters or even less is not uncommon in stampings. Deformations of stamped parts often occur when such sensitive adhesive tapes are applied to components. [0003] In order to suppress or at least reduce said deformations, it has been found to be advantageous to integrate a film, for example a PET film, as an intermediate layer into the adhesive tape in order to absorb the stretching forces during application. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09J7/38C09J153/02C09J11/08
CPCC09J11/08C09J153/02C08L2205/20C08L2205/035C09J2203/334C09J2453/00C09J2467/006C09J2475/006C09J2301/412C09J2301/124C09J2301/302C08L45/00C08L57/02C08K9/10C09J2203/33C09J2400/24C09J7/387C09J7/255C09J7/38C09J7/22C09J2301/408B29B7/748B29B7/845B29B7/485B29B7/487B29B7/526B29B7/90B29B7/426B29B7/826B29B7/823C09J7/29C09J2203/326
Inventor A.布拉兹朱斯基A.伯迈斯特F.洛曼A.彼得森
Owner TESA SE