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. 31, 1999
Filed:
Jan. 17, 1997
Applicant:
Inventors:
Thomas Daniel, Chesapeake, VA (US);
Norbert Herfert, Altenstadt, DE;
Gustav Remmel, Gelnhausen, DE;
Ulrich Riegel, Frankfurt am Main, DE;
Uwe Stuven, Bad Soden, DE;
Fritz Engelhardt, Chesapeake, VA (US);
Assignee:
BASF Corporation, Mount Olive, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
5263171 ; 526274 ; 526286 ; 526288 ; 526312 ;
Abstract
The present invention relates to the use of surfactants for improving the drying properties of hydrophilic, highly swellable hydrogels in the course of drying with the aid of contact dryers.