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. 23, 1997
Filed:
Feb. 29, 1996
Applicant:
Inventors:
Burnell Lee, Baton Rouge, LA (US);
Farah D Azarnia, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; C23G / ; C23G / ; C11D / ;
U.S. Cl.
CPC ...
134 40 ; 134 15 ; 134 255 ; 134 32 ; 134 38 ; 510169 ;
Abstract
This invention relates to a solvent system and process for cleaning cellulose triacetate polymer camera film. The solvent system comprises n-propyl bromide and an alkyl bromide in which the alkyl group contains 4 to 7 carbon atoms.