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. 25, 1996
Filed:
Sep. 16, 1994
Applicant:
Inventors:
Eric E Arrington, Farmington, NY (US);
Randall J Kehl, Churchville, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ;
U.S. Cl.
CPC ...
264207 ; 264217 ;
Abstract
A method of making a cellulose triacetate photographic film base which includes delivering a dope solution of from 15 to 35 wt % of cellulose triacetate in dichloromethane based on the total weight of the solution under a pressure of from 7 atmospheres to 50 atmospheres and a temperature of from 41.degree. C. to 63.degree. C. to a surface maintained at atmospheric pressure; the surface being maintained at a temperature below the boiling point of dichloromethane.