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. 26, 1991
Filed:
Oct. 02, 1989
Applicant:
Inventors:
Serge L Beaucage, Silver Spring, MD (US);
Judith B Regan, Annandale, VA (US);
Radhakrishnan P Iyer, Rockville, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558129 ; 530330 ; 530331 ; 536 22 ; 536 27 ; 536 28 ; 536 29 ; 548113 ; 548119 ; 548413 ; 548414 ; 552203 ; 552209 ; 562 13 ; 562 14 ; 562 15 ;
Abstract
A method is disclosed for the sulfurization of a phosphorus containing compound, which comprises: solubilizing the phosphorous containing compound and then contacting the phosphorous containing compound, with a sulfur containing compound of the solution formula: ##STR1## wherein, B is selected from the group consisting of --CH.sub.2 --, --C(O)-- or --C(S)--;