Heat resistant separation fabric

Patent metadata

Field	Value
Publication number	US-11840474-B2
Application number	US-201816754213-A
Country	US
Kind code	B2
Filing date	Nov 15, 2018
Priority date	Nov 17, 2017
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

Heat resistant separation fabric consisting out of yarns, wherein the yarns comprise metal fibers; wherein the heat resistant fabric comprises boron nitride particles distributed throughout the complete thickness of the fabric; wherein boron nitride particles are present between metal fibers in the yarns; wherein the amount of the boron nitride particles present on the surface of the fabric is not more than the amount of the boron nitride particles present in the bulk of the fabric.

First claim

The invention claimed is:

1. A heat resistant separation fabric comprising yarns,
wherein the yarns comprise metal fibers;
wherein the heat resistant fabric comprises boron nitride particles distributed throughout the complete thickness of the fabric;
wherein boron nitride particles are present between metal fibers in the yarns;
wherein the amount of the boron nitride particles present on the surface of the fabric is less than the amount of the boron nitride particles present in the bulk of the fabric;
wherein the boron nitride particles are bonded onto the surface of the metal fibers by means of an aluminium phosphate; and
wherein the heat resistant separation fabric contains boron nitride and aluminium phosphate respectively in a range of 0.01 wt % to 1 wt %.

2. The heat resistant separation fabric according to claim 1 , wherein the yarns are spun, filament or texturized yarns.

3. The heat resistant separation fabric according to claim 1 , wherein all fibers in the yarns are stainless steel fibers.

4. The heat resistant separation fabric according to claim 1 , wherein the heat resistant separation fabric is a woven fabric, a knitted fabric or a braided fabric.

5. The heat resistant separation fabric according to claim 1 , wherein the particle size of the boron nitride particles is in the range of 1 nm to 10 μm.

6. The heat resistant separation fabric according to claim 1 , wherein the boron nitride particles comprise boron nitride in the hexagonal crystalline form.

7. The heat resistant separation fabric according to claim 1 , wherein the particle size of the boron nitride particles is in the range of 100 nm to 10 μm.

8. A mould for bending car glass products or mirrors, wherein a surface of the mould making contact with hot glass or mirrors is covered by the heat resistant separation fabric as in claim 1 .

9. A process of bending car glass products or mirrors, wherein a mould is used as in claim 8 , wherein the temperature of the hot glass in contact with the heat resistant separation fabric is in a range between 600° C. to 800° C.

10. A roll of a heat resistant separation fabric, comprising
the heat resistant separation fabric as in claim 1 ; and
a core onto which the heat resistant fabric is wound in a multiple number of layers.

Assignees

• Bekaert Sa Nv

Inventors

• Vleurinck Jos
• De Ridder Frank
• Vergote Véronique

Classifications

• C03B40/005 Primary

  Fabrics, felts or loose covers · CPC title

• C03B23/0357

  by suction without blowing, e.g. with vacuum or by venturi effect · CPC title

• D02G3/12 Primary

  Threads containing metallic filaments or strips · CPC title

• D06M11/00

  Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising (D06M10/00 takes precedence) · CPC title

• D06M11/80

  with boron or compounds thereof, e.g. borides (with boranes or diboranes D06M11/01; with boron carbides D06M11/74) · CPC title