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. 13, 1982
Filed:
Feb. 22, 1980
Applicant:
Inventors:
Peter J Senior, Middlesbrough, GB;
Leonard F Wright, Stockton-on-Tees, GB;
Barry Alderson, Billingham, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560185 ; 210639 ;
Abstract
Poly(.beta.-hydroxybutyric acid) is separated from bacterial cells by drying a finely divided stream or spray of an aqueous suspension of the cells with a gas heated to above 100.degree. C. and then extracting the PHB, preferably after a lipid extraction step with a solvent such as a partially halogenated hydrocarbon such as 1,2-dichloroethane, chloroform or dichlorom