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:
Apr. 17, 1984
Filed:
May. 24, 1982
Applicant:
Inventors:
Walter C Herlihy, Cambridge, MA (US);
Thomas H Fraser, Newtonville, MA (US);
Assignee:
Repligen Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
546268 ; 536 173 ; 424 60 ;
Abstract
An in vitro enzymatic process which efficiently converts (+,-)-tropicamide to essentially pure (+), (-)-tropicamide O-.beta.-D-glucuronide. This product is then separated, advantageously, into the novel compounds (+)-tropicamide O-.beta.-D-glucuronide and (-)-tropicamide O-.beta.-D-glucuronide. The products disclosed herein absorb ultraviolet light, and, thus, can be incorporated into suitable plastic films which are then useful for screening out harmful ultraviolet radiation for the protection of packaged goods. Also the products can be used to protect the skin against burning by sunlight.