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:
Aug. 21, 2007
Filed:
Jun. 30, 2003
Robert Parker, Mannheim, DE;
Frank Prechtl, Frankfurt, DE;
Sylke Haremza, Neckargemuend, DE;
Frank Meyer, Heidelberg, DE;
Volkmar Vill, Hamburg, DE;
Gunnar Gesekus, Hamburg, DE;
Robert Parker, Mannheim, DE;
Frank Prechtl, Frankfurt, DE;
Sylke Haremza, Neckargemuend, DE;
Frank Meyer, Heidelberg, DE;
Volkmar Vill, Hamburg, DE;
Gunnar Gesekus, Hamburg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to chiral 3,4-dihydro-2H-pyran compounds and diastereomers thereof, and to the use of these compounds as chiral dopants for liquid-crystalline systems. The invention furthermore relates to non-polymerizable or polymerizable liquid-crystalline compositions which comprise at least one chiral 3,4-dihydro-2H-pyran compound according to the invention, to the use of these non-polymerizable or polymerizable liquid-crystalline compositions for the production of optical components, to the use of the polymerizable liquid-crystalline compositions for printing or coating substrates, for the preparation or production of dispersions and emulsions, films or pigments and optical components of this type, printed or coated substrates, dispersions and emulsions, films and pigments.