CERAMIC COATING FOR FABRICS

• US 20090311433A1
• Filed: 03/20/2007
• Published: 12/17/2009
• Est. Priority Date: 03/20/2006
• Status: Abandoned Application

• Current Assignee: Dystar Textilfarben GmbH & Company Deutschland KG (Zhejiang Longsheng Group Company Limited)
• Original Assignee: Dystar Textilfarben GmbH & Company Deutschland KG (Zhejiang Longsheng Group Company Limited)
• Inventors: Wittmann, Siegfried
• Application Number:
  US12/293,533
• Publication Number:
  US 20090311433A1
• Time in Patent Office: Days
• US Class Current: 427/387
• CPC Class Codes: D06M 11/00 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 Class Codes: D06M 11/74 with carbon or graphite; with carbides; with graphitic acids or their salts
• CPC Class Codes: D06M 15/564 Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
• CPC Class Codes: D06M 15/643 containing silicon in the main chain

Abstract

Ceramic compositions for rendering fabrics resistant to molten metal are provided.

Claims

1. A composition for rendering a fabric resistant to molten metal, the composition comprising:

a cross-linkable polymer;

ceramic particles; and

a flame retardant.

2. The composition of claim 1, wherein the cross-linkable polymer is a polyurethane.

3. The composition of claim 1, wherein the cross-linkable polymer is a polyurethane formed from the monomers hexamethylenediisocyanate (HMDI) and a polyesterpolyol having a linear or branched polyester component, and having a weight average molecular weight of 1,000-10,000 g/mol.

4. The composition of claim 1, further comprising a cross-linking agent.

5. The composition of claim 4, wherein the cross-linking agent is selected from a polyisocyanate.

6. The composition of claim 4, wherein the cross-linking agent is a trisocyanate capped with oxime groups.

7. The composition of claim 1, wherein the ceramic particles are silicon carbide particles having a size distribution at or about 0.1 to 10 microns.

8. The composition of claim 1, comprising a silicone elastomer at a concentration of at or about 5 to 10 wt %.

9. The composition of claim 1, wherein the composition is an aqueous solution.

10. The composition of claim 9, wherein the composition has a viscosity in the range of at or about 5,000 to 7,000 mPa·

s.

11. The composition of claim 1, comprising:

at or about 25 to 80 wt % of the cross-linkable polymer;

at or about 15 to 45 wt % of ceramic particles; and

at or about 1 to 10 wt % of flame retardant.

12. The composition of claim 11, further comprising at or about 1 to 10 wt % of a cross-linking agent.

13. The composition of claim 1, further comprising a silicone elastomer.

14. The composition of claim 1, further comprising a glyoxal.

15. The composition of claim 11, further comprising at or about 5 to 10 wt % silicone elastomer.

16. A method for manufacturing a fabric that is resistant to molten metal, the method comprising:

providing a base fabric comprising non-melting fibres;

applying to the base fabric a ceramic composition comprising a cross-linking polymer and ceramic particles; and

causing the cross-linking polymer to cross-link and form a matrix with the fibres of the base fabric with the ceramic particles suspended therein.

17. The method of claim 16, wherein causing step comprises heating the base fabric after the applying step to a temperature sufficient to initiate cross-linking.

18. The method of claim 17, wherein the temperature is about 100°

to about 200°

C.

19. The method of claim 16, wherein the ceramic composition further comprises a cross-linking agent.

20. The method of claim 16, wherein the composition further comprises a catalyst.