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, 1982
Filed:
Jan. 08, 1981
Applicant:
Inventors:
John H Tyman, London, GB;
Mahesh S Patel, Scottsdale, AZ (US);
Anthony P Manzara, Stillwater, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568766 ; 568750 ; 568753 ; 568756 ;
Abstract
The components of cashew nut shell liquid have such similar physical characteristics that their separation into relatively pure components has been difficult and has prevented use of the oil in many technological areas. The reaction of certain components with bases prior to distillation enables increased separation efficiency.