Patents by Inventor Georg Maxein

Georg Maxein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polymerized liquid-crystalline compositions
    Patent number: 5911911
    Abstract: Polymerized liquid-crystalline compositions are obtainable by radiation curing of mixtures comprising P0 a) one or more cellulose derivatives in which some or all of the hydroxyl groups of the cellulose are replaced by --OR, 13 O--CO--NH--R, --O--CO--R or --O--CO--OR, where each R can be identical or different and is an aliphatic or aromatic radical of up to 20 carbons,b) one or more polymerizable monomers andc) if desired, further additives.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: June 15, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Keller, Karl Siemensmeyer, Peter Schuhmacher, Manfred Muller, Rudolf Zentel, Georg Maxein
  • Cholesteric copolyisocyanates
    Patent number: 5847068
    Abstract: Cholesteric copolyisocyanates with repeating units of the formulae: ##STR1## and, where appropriate, of the formula ##STR2## where R.sup.1 is a chiral aliphatic or aromatic radical,R.sup.2 is a crosslinkable radical, andR.sup.3 is an achiral radical,and polymers obtainable by crosslinking the copolyisocyanates according to the invention with a polymerizable solvent, and pigments comprising the polymers according to the invention, are described.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: December 8, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Maxein, Bruce M. Novak, Rudolf Zentel, Harald Keller