Patents Assigned to Technochemie GmbH
  • Alkenyl compounds
    Patent number: 4939305
    Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: July 3, 1990
    Assignee: Technochemie GmbH
    Inventors: Horst Stenzenberger, Peter Koenig
  • Laminated article from curable resin composition comprising bis maleimide and alkenyl phenyl hydroxy ether
    Patent number: 4917954
    Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: April 17, 1990
    Assignee: Technochemie GmbH
    Inventors: Horst Stenzenberger, Peter Koenig
  • Curable resin from bis-maleimide and alkenyl phenyl hydroxy ether
    Patent number: 4871821
    Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: October 3, 1989
    Assignee: Technochemie GmbH
    Inventors: Horst Stenzenberger, Peter Koenig
  • Curable resin from bis maleimide and alkenyl phenyl hydroxy ether
    Patent number: 4789704
    Abstract: Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula IID(G).sub.m IIin which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: December 6, 1988
    Assignee: Technochemie GmbH
    Inventors: Horst Stenzenberger, Peter Koenig
  • Fiber materials preimpregnated with duromeric polyimide resins and process for their preparation
    Patent number: 4356227
    Abstract: A preimpregnated fibrous structural material is provided comprising a heat curable imide resin produced by reaction between an N,N'-bisimide of an unsaturated di-carboxylic acid and a hydrazide of an amino acid, and fibrous materials selected from the group consisting of carbon fibers, glass fibers and aromatic polyamide fibers impregnated with said imide resin.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: October 26, 1982
    Assignee: Technochemie GmbH
    Inventor: Horst Stenzenberger