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Cushion-like shaped body and use thereof

A technology for molded bodies, cushions, applications, fluid-filled cushions, chairs, etc.

Active Publication Date: 2015-10-07
TECHNOGEL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sufficiently soft PVC film has too much softener and the disadvantages associated with it

Method used

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  • Cushion-like shaped body and use thereof
  • Cushion-like shaped body and use thereof
  • Cushion-like shaped body and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Test of Species

[0061] Fabrication of specimens for extension testing:

[0062] A first silicone film was placed on a flat surface and a frame having internal dimensions of 100 mm long, 50 mm wide and 10 mm high was applied to said first silicone film. The frame is filled with polyurethane gel. A second silicone film was unrolled onto the gel. The silicone membrane 2 is pressed by a flat cover. After the gel is fully polymerized the frame is removed and the protruding silicone film is trimmed. This results in a rectangular parallelepiped-shaped test phantom with dimensions 100 x 50 x (10.4 to 10.6) mm. The thickness of the silicone resin films 1 and 2 is 0.25±0.05mm.

[0063] A total of 3 samples were produced according to the method described above.

[0064] Silicone materials used in the extension test body:

[0065] The silicone resin film used is produced by WACKER Chemical AG in three different Shore (A) hardness production.

[0066] – 3003 / 05; Shor...

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Abstract

A cushion-like shaped body (1) having an elastic, gel-like filling (2) in a thin-walled outer layer (3) are frequently used as seals, cushions, vibration dampers or shape compensation materials. This shaped body (1) is to be able to withstand severe strains, distortions, compressions and flexural forces, both in the event of brief severe stress and in the event of prolonged stress. For this purpose, the cushion-like shaped body (1) has a filling (2) of a polyurethane having Shore 000 hardness less than or equal to 80 and a compression set less than or equal to 14%, and this filling (2) is present within a shell having an outer layer (3) of a soft silicone material having a layer thickness of 0.075 to 1 mm and a Shore A hardness between 3A and 45A. Such a shaped body (1) is able to return to its original form without lasting elongation after tensile strain at room temperature up to 250%. There is no formation of cracks, detachment phenomena, bubbles, folds or other lasting damage. The elongation does not cause visible detachment between filling (2) and outer layer (3).

Description

technical field [0001] The invention relates to a cushion-shaped shaped body comprising an elastic filling, preferably gel, in a casing, and to the use of said shaped body, in particular for cushions, handles, saddles, cushions, Seals and vibration dampers, even inside more complex components and articles, into which the mats are integrated, to which they are molded or connected. Background technique [0002] Gel pads have long been known as seals or cushions. For example, gel cushions are used on bicycle saddles, cushions and seats for even load distribution or in the seal and cushion areas adjacent to the user's face in medical or industrial respirators. [0003] These seals and cushions should be soft, resilient and compliant. In most cases it is desired that these seals and cushions return to their original shape after being subjected to pressure loads in use, so that they can function in the same way again the next time they are used. [0004] Cushion materials and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04A43B13/18A47C7/02A47C7/14A61G7/057B68G7/05B68G7/06B32B1/00
CPCA47C27/085A47C7/022A61G7/07C08J7/047A47C7/029Y10T428/239A47C7/467A47C7/54F16F9/006F16F2224/048B62J1/26A47G2009/1018A47G9/1081C08J7/0427C08L75/04
Inventor M·奥斯迈尔H·H·德赖林J·克林格比尔F·S·克林格比尔
Owner TECHNOGEL GMBH
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