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:
Oct. 05, 1999
Filed:
Nov. 25, 1997
Applicant:
Inventors:
Per Strande, Oslo, NO;
Harald Dugstad, Oslo, NO;
Balin Balinov, Oslo, NO;
Jan Alfheim, Hagan, NO;
Joseph Arukwe, Oslo, NO;
Assignee:
Nycomed Imaging AS, , NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C11D / ;
U.S. Cl.
CPC ...
5282955 ; 528272 ; 528301 ; 252108 ; 252D / ; 252D / ;
Abstract
The present invention provides a polyethylene glycol (PEG) ester surfactant comprising at least one polyethylene glycol moiety and at least one fatty acyl moiety characterized in that said moieties are linked by a linkage incorporating a biodegradable methylene diester unit of formula (I)