Patent · US Expired

Method of making an endless belt for continuously hot pressing a web of material

US4331500A · kind A · utility

5Cited by

3References

1Claims

0Family size

Assignee

Hermann Berstorff Maschinenbau GmbH · DE

Inventors

Rolf Gersbeck · Ronnenberg, DE
Manfred Krohn · Ronnenberg, DE

Key dates

Filing date	Sep 11, 1980
Grant date	May 25, 1982
Priority date	—
Expiry date	Sep 11, 2000

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2433/00
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An endless belt, for apparatus for continuously hot pressing webs of material by pulling the belt against the periphery of a heated rotatable drum with the web interposed therebetween, comprising a layer of butyl rubber bonded to a fabric of steel wires, a textile layer adhered to the butyl rubber and a layer of silicon rubber adhered to the textile layer. In manufacture the fabric of steel wires is encased in the butyl rubber, the textile layer is adhered to the butyl rubber and the composite article is vulcanized. After vulcanization, the silicon rubber layer is adhered to the textile layer and the composite article thus formed again vulcanized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.