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, 2007
Filed:
Sep. 23, 2002
Horst Berneth, Leverkusen, DE;
Thomas Bieringer, Odenthal, DE;
Rainer Hagen, Leverkusen, DE;
Serguei Kostromine, Swisttal, DE;
Horst Berneth, Leverkusen, DE;
Thomas Bieringer, Odenthal, DE;
Rainer Hagen, Leverkusen, DE;
Serguei Kostromine, Swisttal, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
Polymeric material suitable for the preparation of optical recording media for volume data storage is disclosed. The molecular structure of the material contains a main chain derived from any of poly(meth)acrylate, poly(meth)acrylamide, polysiloxane, polyurea, polyurethane, polyester, polystyrene and cellulose, and the side chains contain a) azobenzene dye, b) form anisotropic grouping, and c) at least one monomer selected from the group consisting of where R=H or methyl,R' and R″ independently denote CnH2n+1 or CnH2n-OH and R′″ denotes —CnH2N—OH.