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:
Apr. 01, 2003
Filed:
Aug. 11, 1998
Applicant:
Inventors:
Earl K. Phillips, Diboll, TX (US);
Arthur J. Garwood, late of Eugene, OR (US);
William D. Detlefsen, Springfield, OR (US);
Assignee:
Borden Chemical, Inc., Columbus, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G 8/28 ; C08L 6/114 ;
U.S. Cl.
CPC ...
C08F / ; C08G 8/28 ; C08L 6/114 ;
Abstract
A catalyst curing system or hardener for resorcinolic resins, such as resorcinol-formaldehyde or phenol-resorcinol-formaldehyde resins including methylolurea. The methylolurea may be used in combination with oxazolidine in ratios ranging from 5:95 to 95:, by molar basis. The hardener crosslinks the resins which permits reduction or “fuming” of formaldehyde as well as control of gel times of the resulting adhesive. The hardener of the present invention if of particular utility in adhesives for use in the forest products industry.