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:
Jan. 02, 1979
Filed:
Feb. 11, 1977
Applicant:
Inventors:
Kurt Weber, Rimbach, Odw., DE;
Michael Brehm, Weinheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim, Bergstr., DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
264 39 ; 134-2 ; 134 / ; 134 23 ; 252548 ; 264 51 ;
Abstract
In the production of a polyurethane foam by supplying two or more components to a machine, mixing said components, extruding the mixture to form a foaming mass, subsequently discontinuing supply and extrusion, rinsing the machine, and subsequently resuming supply and extrusion, the improvement which comprises effecting said rinsing with a rinsing agent having the approximate weight composition