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:
Apr. 12, 1994
Filed:
Jul. 07, 1993
Applicant:
Inventors:
Bernd Klinksiek, Bergisch Gladbach, DE;
Rolf-Volker Meyer, Krefeld-Bockum, DE;
Beatrix Frauendorf, Leverkusen, DE;
Klaus Rall, Koln, DE;
Wolfgang 35e,uml/a/ cker, Pulheim, DE;
Hans-Joachim Wollweber, Krefeld, DE;
Helmut Ohse, Dormagen, DE;
Wolfram Wagner, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524871 ; 524726 ; 528 61 ; 528 64 ; 422131 ; 422133 ; 422134 ; 422135 ;
Abstract
The invention relates to a process for the production of low-gel spinning solutions-surprisingly stable in their solution viscosity-of segmented polyurethane urea elastomers in highly polar solvents, such as dimethyl formamide or dimethyl acetamide, characterized by the use of multistage jet reactor, and to a multistage jet reactor.