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. 28, 1992
Filed:
Apr. 18, 1991
Applicant:
Inventors:
Heinrich Hahnsen, Duisburg, DE;
Wolfgang Nising, St. Augustin, DE;
Thomas Scholl, Meerbusch, DE;
Hans-Josef Buysch, Krefeld, DE;
Ulrich Grigo, Kempen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428334 ; 428412 ; 2641761 ; 264171 ;
Abstract
The invention relates to a process for coating moldings via co-extrusion with a UV-absorber-containing layer containing special dimeric UV absorbers and to the moldings coated with a corresponding layer.
Hahnsen, Heinrich. (1992). Coextruded double walled sheet of linear polycarbonate resin (U.S. Patent No. 5108835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5108835
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile