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:
Sep. 05, 2000
Filed:
Jan. 13, 1999
Applicant:
Inventors:
Phillip R Beaver, Baton Rouge, LA (US);
James E Boone, Baton Rouge, LA (US);
Dixie E Goins, Baton Rouge, LA (US);
Eric W Liimatta, Baton Rouge, LA (US);
David L Shelton, Baton Rouge, LA (US);
Ronald L Shubkin, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
510169 ; 134 40 ; 134 42 ; 510412 ;
Abstract
A process for cleaning movie film, and especially cellulose acetate based polymer film, without causing film damage, comprises immersing the film into a cleaning solvent composition which comprises one or more halogenated hydrobromocarbons having from 1 to 3 carbons, from 1 to 3 bromine atoms and at least one chlorine or fluorine atom, such as 3-bromo-1,1,1-trifluoropropane, removing the film from the solvent and drying the film.