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:
Aug. 27, 1985
Filed:
Apr. 16, 1984
Lock-Lim Chan, Willowdale, CA;
Patrick W Lau, Scarborough, CA;
The Borden Company, Limited, Willowdale, CA;
Abstract
A premoistened towelette or wiper type paper product having high wet strength when stored in an acidic pH medium and during usage and lower wet strength when immersed in a neutral or alkaline pH medium for disposal in conventional sewage systems comprising a non-woven fibrous web which is treated with an improved polymeric binder comprising a copolymer of glyoxal and polyvinyl alcohol which maintains high wet strength when stored for sustained periods of time in acidic pH wetting medium conventionally used for external cleansing of the human body and during usage and yet which will readily break-up during flushing. This instant invention also comprises a method of treating non-woven fibrous webs with the improved glyoxalated polyvinyl alcohol copolymer binder and drying prior to wetting in an acidic, e.g. boric acid medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile