Patents by Inventor Gunther Reiff

Gunther Reiff 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).

  • Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates
    Patent number: 4233431
    Abstract: The present invention relates to polycondensates of the formula 10, their use for absorbing metal ions of the transition elements of the periodic system and their use for the preparation of polymers containing metals of formula 11 which have e.g. improved resistance to heat and to chemicals compared to the corresponding polycondensates of formula 10.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: November 11, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Hugo Vernaleken, Dieter Freitag, Gunther Reiff, Hans Rudolph
  • Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates
    Patent number: 4142035
    Abstract: The present invention relates to polycondensates of the formula 10, their use for absorbing metal ions of the transition elements of the periodic system and their use for the preparation of polymers containing metals of formula 11 which have e.g. improved resistance to heat and to chemicals compared to the corresponding polycondensates of formula 10.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: February 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Hugo Vernaleken, Dieter Freitag, Gunther Reiff, Hans Rudolph
  • Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates
    Patent number: 4137219
    Abstract: The present invention relates to polycondensates of the formula 10, their use for absorbing metal ions of the transition elements of the periodic system and their use for the preparation of polymers containing metals of formula 11 which have e.g. improved resistance to heat and to chemicals compared to the corresponding polycondensates of formula 10.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: January 30, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Hugo Vernaleken, Dieter Freitag, Gunther Reiff, Hans Rudolph
  • Polymers containing 8-hydroxyquinoline groups
    Patent number: 4012362
    Abstract: Homo- and copolymers of monomers obtained by acylation of 2-[4-hydroxy(or amino)phenyl]-2-[5-(8-hydroxyquinolyl)]-propane with .alpha.,.beta.-monoolefinically unsaturated carboxylic acid halides or - anhydrides. As comonomers can be employed compounds containing one or more .alpha.,.beta.-olefinically unsaturated groups such as olefines, diolefines, acrylic acid derivatives, vinyl monomers. The polymers having molecular weights between 5000 - 500,000 can be prepared by radical or ionic chain mechanisms, in continuous or discontinuous processes. They may be used for removing metal ions from their solution, for complexing of interfering metallic impurities in thermoplastic or thermosetting resins or in form of their metal complexes as stabilizers for plastics.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: March 15, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunther Reiff, Dieter Margotte, Karstel Idel, Hugo Vernaleken, Dieter Freitag
  • Polymerizable .alpha.,.beta.-monoolefinically unsaturated monomers carrying 8-hydroxyquinoyl groups
    Patent number: 3991062
    Abstract: Polymerizable monomers of the formula I ##SPC1##whereinX denotes --O-- or --NH--,R denotes H--, --COOH or --COOR.sub.3,R.sub.1 denotes --H or --CH.sub.3 andR.sub.2 denotes H-- or --CH.sub.3, said monomers are obtained by acylation of 2-[4-hydroxyphenyl]-2-[5-(8-hydroxyquinolyl)]-propane or 2-[4-aminophenyl]-2-[5-(8-hydroxyquinolyl)]-propane with acid halides of the formula.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: November 9, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Dieter Margotte, Gunther Reiff, Dieter Freitag, Hugo Vernaleken