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Sheets with high thermal stability

A sheet, sheet technology, applied in the direction of transportation and packaging, textile and paper, conjugated synthetic polymer artificial filament, etc.

Active Publication Date: 2018-01-23
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The problem to be solved by the present invention is therefore that of constructing and improving sheets of the type mentioned at the outset so that they have a high level of bending stiffness at high temperatures after inexpensive manufacture and are recyclable and physically strong and elastically bendable

Method used

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  • Sheets with high thermal stability
  • Sheets with high thermal stability
  • Sheets with high thermal stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0114] figure 1 A sheet 1 is shown comprising a body consisting of a sheet 2 comprising fibers made of two polymers.

[0115] figure 2 It has a single-layer structure.

[0116] figure 2 An exemplary structure of a thermoformable sheet 1' is shown. The sheet 1' has a multilayer structure, the sheet 1' comprising, in addition to the sheet 2, additional sheet layers. Sheet 2 is presented as a spunbond sheet. The sheet 1' comprises a sheet 3 composed of short fibers, the sheet 3 being the lowermost layer. Sheet 2 is arranged on top of this sheet 3 . An additional ply 3 made of staple fibers is placed on top of ply 2 .

[0117] image 3 Another exemplary structure of a thermoformable sheet 1 ″ is shown. Sheet 1 ″ has a multilayer structure, sheet 1 ″ comprising additional sheet layers in addition to sheet 2 . Sheet 1 ″ includes as the lowermost layer Sheet 2. An additional ply 3 consisting of staple fibers is placed on top of ply 2 . A further ply 2 is placed on top o...

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Abstract

A sheet (1,1',1",1"') comprising a body consisting of at least one sheet (2,3), wherein the at least one sheet (2, 3) comprising first fibers comprising a first polymer (10) and second fibers comprising a second polymer (11), or wherein said at least one ply (2, 3) Contains a single fiber comprising first and second polymers (10,11). In order to improve such constructed sheets to have high temperature and light stability after low-cost manufacture, to be recyclable, to have high mechanical strength and to be elastically bendable, it is characterized in that the first polymer (10) The cold crystallization temperature (8) of is equal to or lower than the softening temperature (7) of the second polymer (11).

Description

technical field [0001] The invention relates to sheet material, which preferably has high thermal stability, and to its use in the manufacture of components for vehicles. Background technique [0002] Sheets of the type mentioned at the outset are known in the art and are used in many fields, for example in the transportation industry. Such sheets usually consist of a wide variety of materials, such as fiberglass, polyurethane or polyester. [0003] US 3966526 describes a method of manufacturing components for automotive interiors. These parts consist of multiple foam layers of polystyrene resin. The disadvantage here is that these parts are not recyclable, so their disposal is costly. [0004] US 4840832 shows another component used in the automotive industry, the roof liner. The headliner contains bicomponent fibers composed of polyester with a low-melting binder component and a high-melting stabilizing polymer. [0005] US 5275865 discloses another headliner for auto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/435D04H1/541D04H3/011D04H3/147D01F8/14
CPCD01F8/14D04H1/435D04H3/011D04H3/147D04H1/5412D04H1/541D10B2401/04D10B2401/061D10B2401/062D10B2505/12
Inventor 杰拉尔德·雅尔R·格罗滕A·博尔德隆成勇D·雷贝尔
Owner CARL FREUDENBERG KG