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:
Nov. 29, 1988
Filed:
Aug. 27, 1987
Applicant:
Inventors:
Franz-Robert Schlomer, Dormagen, DE;
Wolfgang Volker, Tonisvorst, DE;
Hartwig Hupfer, Bargteheide, DE;
Karl E Ott, Hamburg, DE;
Bodo Muller, Hamburg, DE;
Assignee:
Messer. Griesheim GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 28 ; 62 63 ; 62 64 ; 62380 ; 264143 ; 26421113 ; 26421118 ; 425 71 ; 425325 ; 523149 ; 523307 ; 528481 ;
Abstract
The homogeneity of highly reactive polycondensates is improved in a process involving batch operations in a reactor, followed by extrusion and then cooling by a coolant to the point of solidification after which the polycondensates are milled and removed. The cooling is carried out with a low-boiling liquified gas.