Patents by Inventor John C. Zemlin

John C. Zemlin 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).

  • Patent number: 4879032
    Abstract: Fluid separatory devices containing novel polyurethane potting and adhesive compositions comprising the reaction product of an aliphatic polyisocyanate with a propoxylated polyether amine in the presence of a metallo-organic catalyst selected from the group consisting of the organic acid salts and the .beta.-diketonates of zinc, iron, copper, manganese, mercury, lead, and mixtures thereof, said catalyst being present in an amount effective to substantially increase the cure rate and prevent bubble formation. Nontoxic metallo-organic catalysts based on zinc, iron, and copper are preferred for use in separatory devices for blood dialysis and water purification.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: November 7, 1989
    Assignee: Allied Resin Corporation
    Inventor: John C. Zemlin
  • Patent number: 4070224
    Abstract: A mold has a silicone rubber body defining a molding cavity with a polymeric backer forming a support for the body integrally joined to the body by an adhesive bond. A cured silicone rubber or silicone resin is bonded to anyone of a variety of polymeric substances by applying an activating primer such as trimethylbenzyl ammonium hydroxide and subsequently or simultaneously applying a bridging agent which bonds to the activated silicone surface and also provides bonding sites for later attachment to polymers containing isocyanates, epoxides and/or other reactive groups.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: January 24, 1978
    Assignee: Allied Resin Corporation
    Inventors: John C. Zemlin, Robert Davis