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. 23, 1991
Filed:
Aug. 23, 1990
Applicant:
Inventors:
Wilhelm Klepsch, Kaprun, AT;
Dietmar Plobst, Kaprun, AT;
Assignee:
Senoplast Klepsch & Co., Kaprun, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283191 ; 220444 ; 220467 ; 312214 ; 4283193 ; 4283197 ;
Abstract
An insulating wall for refrigerator devices, wherein a polyurethane is foamed between an exterior metal sheet and a deep-drawn plastics material plate selected from a member of the group of polystyrole or acrylonitrile-butadiene-styrene, wherein the cell-gas of the polyurethane foam is carbon dioxide and wherein the plastics material plate comprises in its interior a blocking layer of 0.03-0.6 mm thickness formed of a copolymer of polyethylene and vinyl alcohol where the molar percent of polyethylene in the copolymer is in the range of 32-44.