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:
Jun. 19, 2001
Filed:
Aug. 13, 1999
Applicant:
Inventors:
Ronald L. Anderson, Naperville, IL (US);
Wendell W. Cattron, Hinckley, IL (US);
Vincent F. Smith, Jr., Big Rock, IL (US);
David J. Fenoglio, Wheaton, IL (US);
Assignee:
BP Amoco Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 1/510 ; C08B 3/00 ; C07C 6/3307 ;
U.S. Cl.
CPC ...
C08B 1/510 ; C08B 3/00 ; C07C 6/3307 ;
Abstract
A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by hydrolysis of a polyanhydride of the structure