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:
Nov. 05, 2002
Filed:
Jun. 18, 2001
Applicant:
Inventors:
Gary Woodward, Worcester, GB;
Ranbir Singh Padda, Oxon, GB;
Christian Thomas Regius, West Midlands, GB;
Assignee:
Rhodia Consumer Specialties Limited, West Midlands, GB;
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/50 ;
U.S. Cl.
CPC ...
C07F 9/50 ;
Abstract
Organophosphines of the formula (R) P(H) ( where R is C1-C20 alkyl, alkenyl, alkaryl or styryl and a is 1, 2, or 3) are produced by (i) reacting a tris(hydroxyorgano)phosphine (THP) with an organic halogen containing compound; (ii) reacting the product of (i) with a base; (iii) removing aldehydes from the product of (ii) and adding an organic phase, followed by distillation or phase-separation to obtain the desired product.
Woodward, Gary. (2002). Organophosphines (U.S. Patent No. 6476272). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6476272
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile