Patents by Inventor Eduard Bergmeister

Eduard Bergmeister 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).

  • Water-dilutable tetrapolymers of vinyl acetate, maleic diesters, crotonic acid and hydrophilic unsaturated copolymerizable esters
    Patent number: 4048192
    Abstract: A vinyl acetate copolymerizate of monomers being a free-radical polymerized copolymerizate having monomer units consisting essentially ofA. from 60% to 80% by weight of vinyl acetate units,B. from 10% to 20% by weight of units of a maleic acid diester with a straight-chained alkanol-1 having from about 8 to 10 carbon atoms,C. from 5% to 20% by weight of units of a mono-olefinically unsaturated ester having from 6 to 8 carbon atoms and a hydrophilic group, andD. from 3% to 10%, particularly 7%, by weight of crotonic acid; as well as an alcoholic solution thereof and salts thereof.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: September 13, 1977
    Assignee: Wacker-Chemie GmbH
    Inventors: Alois Stoll, Eduard Bergmeister
  • Process for the preparation of free-flowing, lump-free redispersible, synthetic resin powders
    Patent number: RE28780
    Abstract: This invention relates to a process for the preparation of free-flowing, lump-free redispersible synthetic resin powders by spraydrying aqueous dispersions of synthetic resins containing an added amount of a water-soluble condensation product from melamine, formaldehyde and containing sulfonate groups.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: April 20, 1976
    Assignee: Wacker-Chemie GmbH
    Inventors: Eduard Bergmeister, Paul-Gerhard Kirst, Heinz Winkler