The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2009
Filed:
Oct. 20, 2003
Hartmut E. A. Bruschke, Nussloch, DE;
Wolfgang Schafer, Homburg, DE;
Nicholas Patrick Wynn, Sarreguemines, DE;
Frank-klaus Marggraff, Homburg, DE;
Hartmut E. A. Bruschke, Nussloch, DE;
Wolfgang Schafer, Homburg, DE;
Nicholas Patrick Wynn, Sarreguemines, DE;
Frank-Klaus Marggraff, Homburg, DE;
Sulzer Chemtech GmbH, Ober-Morlen-Ziegenberg, DE;
Abstract
Process for the continuous manufacture of tubular composite or multi-layer membranes comprising a porous sub layer (support layer), mainly determining the mechanical strength of the membrane, and adjacent to the support layer a second layer of a material of different chemical nature (separation layer), mainly determining the separation properties of the membrane, winding a respective flat sheet composite membrane lengthwise or spirally around a mandrel or shaft, into a tube or hose, the separating layer of the composite membrane facing to the inside of the tube or hose, gluing or welding the edges which may overlap or form a butt seam, and applying to said seam or overlapping area from the inside of the tube or hose a sealing material which can be solidified, and finally solidifying said sealing material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile