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:
Jul. 03, 1990
Filed:
Sep. 02, 1988
Applicant:
Inventors:
Dieter Groitzsch, Hirschberg, DE;
Bernhard Klein, Birkenau-Lohrbach, DE;
Gerhard Schaut, Hemsbach, DE;
Assignee:
Firma Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
264 22 ; 264101 ; 264156 ; 264171 ; 2641771 ; 264236 ; 604362 ; 604365 ; 604374 ;
Abstract
Disclosed is a process for producing a surgical sponge which contains contrast agent embedded in a polymer matrix in proportions of up to 70 wt. %. The matrix consists of a polymer material free of plasticizers. In the process for the production of the sponge a matrix for the contrast agent is used, which is an uncrosslinked, viscous liquid, prepolymer state until after it has been extruded onto the basic fleece material, and not until a process step that then follows is the polymerization completed.