Composition Related To Metal Foundry Molding Or Metallurgical Furnace Or Process Of Preparing Patents (Class 523/139)
Hot-top or taphole plug composition or process of preparing (Class 523/140)
Composition for metallurgical furnace or oven or process of preparing (Class 523/141)
Organic polyisocyanate or derived from polyisocyanate (Class 523/142)
Furan-type material (Class 523/144)
Phenolic or amine or ketone condensate with aldehyde (Class 523/145)
Polyester based (Class 523/148)
  • Process for binding aggregates with a vacuum-activated catalyst
    Patent number: 4371649
    Abstract: Process of binding aggregates by mixing aggregates with resin binder and vacuum-activated catalyst, applying a partial vacuum to the mixture to activate the catalyst, and curing the binder.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: February 1, 1983
    Inventor: Eduardo Iglesias Hernandez
  • Catalysts for foundry core binders
    Patent number: 4331583
    Abstract: Catalysts for foundry core binders prepared by reacting polyphosphoric acid with an alcohol.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: May 25, 1982
    Assignee: The Quaker Oats Company
    Inventor: George S. Everett
  • Foundry refractory binder
    Patent number: 4321186
    Abstract: This invention relates to the preparation of foundry molds and foundry cores using a low molecular weight high vinyl poly(1,3-butadiene).
    Type: Grant
    Filed: April 9, 1980
    Date of Patent: March 23, 1982
    Assignee: Phillips Petroleum Company
    Inventor: George M. Allison, III