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:
May. 08, 1984
Filed:
Sep. 21, 1981
Applicant:
Inventors:
Hans-Georg Hoppe, Leichlingen, DE;
Paul Henrichs, Bergisch-Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283186 ; 428339 ; 4284233 ;
Abstract
The present invention relates to moldings, particularly in the form of cushioning elements, of at least partly open-cell polyurethane elastomers which have a substantially homogeneous density profile and a density of from 0.3 to 0.8 g/cc and which are characterized in that their surface is sealed by a continuous, tight, nonporous skin of polyurethane or polyurethane urea having a thickness of from 0.05 to 1 mm, preferably from 0.1 to 0.5 mm and, with particular preference, from 0.2 to 0.3 mm.