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:
Mar. 16, 1999
Filed:
Jun. 18, 1998
Applicant:
Inventors:
Robert Eiben, Koln, DE;
Wilfried Ebeling, Koln, DE;
Hans-Michael Sulzbach, Konigswinter, DE;
Reiner Raffel, Siegburg, DE;
Assignees:
Bayer Aktiengesellschaft, Leverkusen, DE;
Maschinenfabrik Hennecke GmbH, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521130 ; 261 38 ; 261D / ; 264 459 ; 264 51 ; 3661821 ; 366192 ; 366336 ; 521 79 ; 521133 ; 521155 ;
Abstract
A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).