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:
Jun. 10, 2008
Filed:
Apr. 16, 2004
Yuval Berenstein, Yokneam, IL;
Michael Shvartzman, Givat Avni, IL;
Nachmi Segal, Kibbutz Shamir, IL;
Yuval Berenstein, Yokneam, IL;
Michael Shvartzman, Givat Avni, IL;
Nachmi Segal, Kibbutz Shamir, IL;
N.R. Spuntech Industries Ltd., Upper Tiberias, IL;
Abstract
A method for producing abrasive non-woven cloth includes forming a non-woven web of fibers including a first layer adjacent to a first surface of the web containing at least about 5% by weight of thermoplastic fibers. The web is patterned to generate raised regions and lowered regions in the first surface, and then heat treated to cause at least part of the thermoplastic fibers to form nodules, thereby imparting abrasive properties to at least the raised regions of the first surface. The non-woven web preferably includes a second layer adjacent to a second surface of the web made up primarily of fibers which do not form nodules under the heat treatment.