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:
Dec. 28, 1993
Filed:
Oct. 08, 1991
Applicant:
Inventors:
Fritz Engelhardt, Frankfurt, DE;
Ulrich Riegel, Frankfurt, DE;
Hanss-Jerg Kleiner, Kronberg, DE;
Wolf-Dieter Muller, Hofheim, DE;
Assignee:
Cassella AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08J / ;
U.S. Cl.
CPC ...
525340 ; 5253266 ; 5253298 ; 5253304 ; 525193 ; 525287 ; 526278 ;
Abstract
The present invention relates to the use of compounds of the general formula I ##STR1## in which R denotes alkyl, alkenyl or aryl, which can be optionally substituted, as crosslinkers in the preparation of hydrogels, and to the hydrogels thus prepared and their use.