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:
Sep. 08, 1987
Filed:
Mar. 14, 1986
Applicant:
Inventors:
Tito Viswanathan, Little Rock, AR (US);
Donald H Westermann, Greenfield, WI (US);
Assignee:
Chemical Process Corporation, Greenfield, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
527300 ; 524 13 ; 524 14 ; 524 15 ; 524 27 ; 524 35 ; 524 47 ; 524 48 ; 524 54 ; 524 55 ; 524 58 ; 536126 ;
Abstract
The process of preparing a formaldehyde-free, thermosetting resin which is especially useful for bonding lignocellulosic materials together to form plywood or particle board, which process comprises first reacting an aqueous preparation containing a carbohydrate raw material with a mineral acid to convert the carbohydrate to polymerizable reactants and second reacting the polymerizable reactants with ammonia to form the thermosetting resin. The resin can be further cross-linked to form an insoluble resinous material by heating.