Patents by Inventor Bernhard Maltry

Bernhard Maltry 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).

  • Method for producing a granulate from a melt
    Patent number: 6638619
    Abstract: A process for the production of tablet-shaped granular material from a melt, in which (i) a melt is prepared, (ii) the prepared melt is shaped to droplets, (iii) the droplets are deposited on a cooling surface, and (iv) the deposited droplets solidify to give the granular material, wherein the melt comprises an alcohol, and the melt has a melting point of 30° C. or above.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: October 28, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Melanie Brunner, Rudolf Erich Lorenz, Bernhard Maltry, Jörg Heilek
  • Preparation of neopentyl glycol hydroxyprivalate granules
    Patent number: 6242639
    Abstract: A method for preparing neopentyl glycol hydroxypivalate granules by application of a neopentyl glycol hydroxypivalate melt (1) onto a cooling belt (6) on which the melt solidifies, wherein the melt contains at least so 3 wt % of neopentyl glycol hydroxypivalate crystals, based on the total amount of neopenlyl glycol hydroxypivalate.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: June 5, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Jürgen Weyer, Bernd Eck, Dieter Baumann, Bernhard Maltry
  • Production of clumping-free neopentyl glycol hydroxpivalate granules
    Patent number: 5936115
    Abstract: In a process for the production of neopentyl glycol hydroxypivalate granules by depositing a neopentyl glycol hydroxypivalate melt on a chill surface, on which the melt solidifies, as a flat film, which, after solidification, is comminuted to give granules. The melt contains less than 3% by weight, based on the total amount of neopentyl glycol hydroxypivalate, of neopentyl glycol hydroxypivalate crystals.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: August 10, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Johann-Peter Melder, Dieter Baumann, Bernhard Maltry
  • Separation of substances from a liquid mixture by crystallization
    Patent number: 5755975
    Abstract: In a process for separating substances from a liquid mixture by crystallization in a crystallizer, a two-phase seed layer in the form of a melt or solution of the mixture to be separated, with crystals suspended therein, is applied, prior to the crystallization, to those surfaces of the crystallizer from which crystals grow during the crystallization.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: May 26, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Eck, Bernhard Maltry
  • Purification of N-vinylpyrrolidone by crystallization
    Patent number: 5710284
    Abstract: In a process for purifying N-vinylpyrrolidone by crystallization in a crystallizer, those surfaces of the crystallizer from which crystals grow during the crystallization are covered with an N-vinylpyrrolidone seed layer before the crystallization.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: January 20, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Schmidt-Radde, Herbert Helfert, Bernd Eck, Bernhard Maltry