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. 13, 1985
Filed:
Mar. 08, 1984
Applicant:
Inventors:
Kenneth S Kang, LaJolla, CA (US);
George T Veeder, San Diego, CA (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C12P / ;
U.S. Cl.
CPC ...
536123 ; 536114 ; 536-11 ; 435104 ;
Abstract
The new heteropolysaccharide S-88, prepared by fermentation of an unnamed Pseudomonas species, ATCC 31554, has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating oil well drilling fluids and muds. Its chemical composition is 3.2-7% acyl groups, 11.8-18.7% glucuronic acid; and the neutral sugars mannose, glucose, and rhamnose in the approximate molar ratio 1:2:2.