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:
Sep. 22, 2009
Filed:
Jul. 14, 2005
Ronald Bernal Jones, Allentown, PA (US);
Blaine Richard Hobar, Ashfield, PA (US);
Joel Erwin Goldstein, Allentown, PA (US);
Lisa Ann Mercando, Pennsburg, PA (US);
Ronald Bernal Jones, Allentown, PA (US);
Blaine Richard Hobar, Ashfield, PA (US);
Joel Erwin Goldstein, Allentown, PA (US);
Lisa Ann Mercando, Pennsburg, PA (US);
Wacker Chemical Corporation, Adrian, MI (US);
Abstract
This invention is directed to methods of incorporating a trigger such as boric acid, boric acid salts, sodium sulfate, or other salts, into a nonwoven web substrate for the preparation of dry nonwoven products which are redispersible when put in contact with large amounts of water or liquid. In one method, the trigger is in a dry powder form and is incorporated into the nonwoven fibers followed by treatment of the fibers with an aqueous redispersible binder, and binding and drying the web. Another method is to saturate a dry bonded nonwoven web with an aqueous solution of the trigger and then dry the saturated web. Yet another method is to apply an aqueous solution of the trigger to the web followed by applying a redispersible aqueous binder to the web and then heating and drying the web.