Maro Publications


Patent Abstracts

from 9/10/2012

Maro Topics


Patents with Abstracts

2. 8,257,626 
Felt body manufacturing method
Kuhl of Groz-Beckert KG, Germany,  formed spatial objects of a fleece or felt by depositing fibers on an air permeable mold.  The fibers may be attracted to the mold by a vacuum applied to the underside of said mold. Preferably, the mold has several spatial structures that define the shape of the fiber web that is being formed and that correspond at least approximately to the desired final shape.  By subsequent compacting of the thusly obtained fiber web, a spatially three-dimensional felt object is obtained. (RDC 9/10/2012)

1. 8,257,625 
Molded filter
Waltl and Farby of PSI Global Ltd., Great Britain, molded a micro-fibrous (a) forming an aqueous slurry of micro-fibers; (b) introducing the slurry under pressure into the top of an annular molding space so that a mass of fibers becomes compacted on a vertical cylindrical screen and liquid is discharged from the molding space through the screen; (c) increasing the effective open area of the screen by moving upwardly a sleeve in sliding contact with the screen at a rate substantially equal to the rate at which the height of the mass of fibers increases above the support; then (d) removing, drying, and curing the resulting tubular mass of fibers.  Acrylate binder resin compatible with the e.g. acidic conditions needed to stabilize the resin, can form part of the fiber slurry used for molding the filter, and after filter formation and drainage can be cured by heat to form the filter. (RDC 9/10/2012)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921


Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

** Date of latest addition; date of first entry is 9/10/2012.