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:
Feb. 13, 2007
Filed:
Oct. 09, 2003
Applicants:
Guido Schmitz, Duelmen, DE;
Harald Haeger, Recklinghausen, DE;
Hans Ries, Marl, DE;
Wilfried Bartz, Marl, DE;
Inventors:
Guido Schmitz, Duelmen, DE;
Harald Haeger, Recklinghausen, DE;
Hans Ries, Marl, DE;
Wilfried Bartz, Marl, DE;
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/08 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/34 (2006.01); B29D 23/00 (2006.01); F16L 11/04 (2006.01); F16L 11/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A layered composite contains the following layers: (I) a layer I composition containing (a) from 0 to 80 parts by weight of at least one polyamide; (b) from 0 to 100 parts by weight of at least one polyamine-polyamide copolymer; and (c) from 0 to 80 parts by weight of at least one polyamide; and (II) a layer II composition containing at least one ethylene-vinyl alcohol copolymer.