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:
Sep. 25, 2001
Filed:
Aug. 27, 1998
Applicant:
Inventors:
Wolfgang Bräuer, Leverkusen, DE;
Friedemann Müller, Neuss, DE;
Jürgen Winkler, Langenfeld, DE;
Herbert Heidingsfeld, Frechen, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/810 ; C08G 1/832 ; C08G 1/838 ;
U.S. Cl.
CPC ...
C08G 1/810 ; C08G 1/832 ; C08G 1/838 ;
Abstract
The invention relates to a process for the continuous preparation of melt-processable polyurethanes, wherein an isocyanate-terminated prepolymer is intensively mixed with chain extender at temperatures of <200° C., and the mixture obtained is converted to melt processable polyurethane in a twin screw extruder under quasi-adiabatic reaction conditions.
Bräuer, Wolfgang. (2001). Continuous preparation of melt-processable polyurethane in a twin screw extruder (U.S. Patent No. 6294637). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6294637
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile