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:
Jan. 07, 1992
Filed:
May. 26, 1989
Applicant:
Inventor:
Eckhard C Schwarz, Neenah, WI (US);
Assignee:
Bix Fiberfilm Corporation, Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; D04H / ; D04H / ;
U.S. Cl.
CPC ...
428288 ; 156 624 ; 428296 ; 428297 ; 428303 ;
Abstract
There is disclosed a novel process to form a water-absorbing sheet by extruding an aqueous solution of superabsorbing polymer as a fibrous stream onto a high velocity, hot fibrous stream of melt-blown fibers of thermoplastic polymer, causing entanglement of the fiber and forming a superabsorbent non-woven mat free of dusting problems.