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:
Mar. 05, 1991
Filed:
Jul. 30, 1990
Applicant:
Inventors:
John S Roberts, Bartlesville, OK (US);
Tod K Shioyama, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
568 50 ; 568 44 ; 568 45 ; 568 49 ; 20415764 ; 20415776 ; 20415777 ; 20415778 ; 2041576 ; 20415779 ; 2041578 ; 20415781 ; 20415782 ; 20415786 ; 2041579 ; 20415792 ; 20415794 ; 20415812 ;
Abstract
Oxa-organic sulfur compounds, methods of preparing such compounds and methods of using the compounds as polymer chain length terminating agents are provided. The compounds are prepared by reacting allyl alcohol in the presence of a basic catalyst with a compound having the formula ##STR1## to form an intermediate. The intermediate is then reacted with hydrogen sulfide in the presence of ultraviolet radiation and a trialkyl phosphite to form the oxa-organic sulfur compound having the formula ##STR2##