The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1982
Filed:
Mar. 16, 1981
Thomas L Krinski, Granite City, IL (US);
Carroll L Garey, St. Louis, MO (US);
Ralston Purina Company, St. Louis, MO (US);
Abstract
A modified vegetable protein adhesive binder and process for its production is disclosed comprising; forming a slurry of a urease containing vegetable protein material having a proteinaceous solids content of 10 to 30% by weight and including in said slurry a quantity of water soluble silicate to minimize foaming during reaction of the protein material. Urea is then added which reacts with the urease to liberate ammonia from the urea and raise the pH of the slurry to above about 8. The slurry having an alkaline pH is reacted with an oxidizing agent to modify the protein, followed by heating of the modified protein at a temperature of 220-320.degree. F. The modified protein material is then cooled and dried to result in a protein adhesive binder with excellent rheological properties and good coating characteristics.