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. 06, 1993
Filed:
Jan. 10, 1992
Applicant:
Inventors:
Assignee:
Ortec, Inc., Easley, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; D06M / ; D06M / ;
U.S. Cl.
CPC ...
8120 ; 811568 ; 81161 ; 81271 ;
Abstract
A process for reducing discoloration of fibrous cellulosic material, treated at temperatures above about 175.degree. C. with a treating solution of a polycarboxylic acid and a phosphate salt curing catalyst, comprises adding to the treating solution an inorganic boron-oxygen compound.