Method for producing a composite fabric material and drive belt covered with composite fabric material

Patent metadata

Field	Value
Publication number	US-11110674-B2
Application number	US-201816605229-A
Country	US
Kind code	B2
Filing date	Feb 5, 2018
Priority date	Apr 24, 2017
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A method for producing a sheet-like composite fabric material, in particular a rubberized fabric or a fabric provided with a polymer preparation, for covering drive belts, the composite fabric material comprising a textile integrated in a matrix of elastomeric material, preferably at least one fabric layer integrated in a rubber matrix, the textile or the fabric layer and the elastomeric material being introduced into a gap between a band and a cylindrical molding wheel and molded to form a composite material between the band and the molding wheel at a temperature below the vulcanization temperature, the band looping around the molding wheel at a looping angle under pressure. Likewise disclosed is a drive belt with a covering of composite material produced according to the invention.

First claim

The invention claimed is:

1. A method for producing a composite fabric material, the composite fabric material comprising a textile integrated in a matrix of elastomeric material, the method comprising:
introducing the textile and the elastomeric material into a gap between a band and a cylindrical molding wheel,
molding the textile and the elastomeric material to form the composite fabric material between the band and the cylindrical molding wheel at a temperature below a vulcanization temperature of the elastomeric material,
wherein the band is looped around the molding wheel at a looping angle under a pressure of from 2 to 6 bar, and wherein the textile has over 50% elongation under a tensile stress of 100 N in a longitudinal direction as measured on a textile strip with a width of 5 cm.

2. The method as claimed in claim 1 , wherein the elastomeric material is a polymer mixture.

3. The method as claimed in claim 2 , wherein the polymer mixture is a rubber mixture.

4. The method as claimed in claim 3 , wherein the rubber mixture is solvent-free.

5. The method as claimed in claim 1 , wherein the elastomeric material is introduced between the band and the cylindrical molding wheel as a sheet.

6. The method as claimed in claim 5 , wherein the sheet is introduced on at least a side of the textile.

7. The method as claimed in claim 5 , wherein the sheet is introduced on sides of the textile.

8. The method as claimed in claim 1 , wherein a number of layers of the elastomeric material is introduced between the band and the cylindrical molding wheel.

9. The method as claimed in claim 1 , wherein a number of layers of the textile is introduced between the band and the cylindrical molding wheel.

10. The method as claimed in claim 1 , wherein a temperature during the molding between the band and the molding wheel does not exceed 150° C.

11. The method as claimed in claim 10 , wherein the temperature during the molding between the band and the molding wheel does not exceed 100° C.

12. The method as claimed in claim 1 , wherein the composite fabric material produced is configured to cover at least a side of a drive belt.

13. The method as claimed in claim 12 , wherein the drive belt is a toothed belt.

14. The method as claimed in claim 12 , wherein the composite fabric material is configured to cover a rear side of the drive belt.

15. The method as claimed in claim 12 , wherein the composite fabric material is configured to cover a drive side of the drive belt.

16. The method as claimed in claim 12 , wherein the composite fabric material is configured to cover a drive side and a rear side of the drive belt.

17. The method as claimed in claim 1 , wherein the composite fabric material is a rubberized textile.

18. The method as claimed in claim 1 , wherein the elastomeric material is a polymer preparation.

19. The method as claimed in claim 1 , wherein the composite fabric material is at least one textile layer integrated in an elastomeric rubber matrix.

Assignees

• Contitech Antriebssysteme Gmbh

Inventors

• Kanzow Henning
• Mahnken Claus-Lueder
• Obert Markus
• Well Michael

Classifications

• B29K2007/00

  Use of natural rubber as moulding material · CPC title

• B29K2105/246

  Uncured, e.g. green · CPC title

• B29L2029/00

  Belts or bands {(conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733)} · CPC title

• B29C43/28 Primary

  incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles · CPC title

• B29C43/52

  Heating or cooling · CPC title