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:
Aug. 25, 1992
Filed:
Apr. 16, 1990
Applicant:
Inventors:
Michael Bellas, Kingsport, TN (US);
Charles M Buchanan, Bluff City, TN (US);
Kevin J Edgar, Kingsport, TN (US);
Ted C Germroth, Kingsport, TN (US);
Alan K Wilson, Kingsport, TN (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 58 ; 536 63 ; 536 64 ; 536 65 ; 536 67 ; 536 68 ; 536 69 ; 536 76 ; 536 79 ; 536 80 ; 536 81 ;
Abstract
Process for reducing the degree of substitution of cellulose esters employing Lewis acids as solvolysis promoters is disclosed. Novel low degree of substitution cellulose esters produced by the invention process are also described.