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. 20, 1991
Filed:
Jun. 28, 1989
Applicant:
Inventors:
Assignees:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
The Board of the Rubber Research Institute of Malaysia, Kuala Lumpur, MY;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568670 ; 568699 ;
Abstract
Purified L-quebrachitol is recovered in increased quantities from rubber latex by dissolving concentrated solutions or pulverized solids of the serums in methyl alcohol under specified extraction conditions.