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:
Aug. 09, 1977
Filed:
Mar. 15, 1976
Applicant:
Inventors:
James C Fletcher, , US;
William A Mueller, Glendale, CA (US);
George C Hsu, La Crescenta, CA (US);
Harold E Marsh, Jr, La Canada, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C08B / ; C08B / ; C08B / ;
U.S. Cl.
CPC ...
536 56 ; 210 24 ; 536 58 ; 536 84 ; 536 85 ; 536105 ;
Abstract
A novel aldehyde-containing polymer (ACP) is prepared by reaction of a polysaccharide with periodate to introduce aldehyde groups onto the C.sub.2 - C.sub.3 carbon atoms and by introduction of ether and ester groups onto the pendant primary hydroxyl to modify solubility characteristics. The ACP is utilized to absorb nitrogen bases such as urea in vitro or in vivo.