Patents by Inventor Jerry Darlington

Jerry Darlington 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).

  • Separation of (meth)acrylic acid by rectification
    Patent number: 6228227
    Abstract: In a process for the separation by rectification of (meth)acrylic acid from a mixture containing (meth)acrylic acid and an inert hydrophobic organic liquid having a boiling point higher than that of (meth)acrylic acid as main constituents and also lower aldehydes as secondary constituents, a primary amine and/or a salt thereof are added.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: May 8, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Holger Herbst, Gerhard Nestler, Jerry Darlington, Ulrich Hammon
  • Separation of (meth) acrylic acid by rectification
    Patent number: 5961790
    Abstract: A process for the separation by rectification of (meth)acrylic acid from a mixture containing (meth)acrylic acid and an inert hydrophobic organic liquid having a boiling point higher than that of (meth)acrylic acid as main constituents and also lower aldehydes as secondary constituents, a primary amine and/or a salt thereof are added.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: October 5, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Holger Herbst, Gerhard Nestler, Jerry Darlington, Ulrich Hammon
  • Purification of crude (meth)acrylic acid
    Patent number: 5482597
    Abstract: In a process for purifying crude (meth)acrylic acid, the crude (meth)acrylic acid is worked up by distillation after addition of an organic carboxylic acid hydrazide and, if desired, an organic sulfonic acid.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: January 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Holger Herbst, Gerhard Nestler, Jerry Darlington, Hans Martan