24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(21) Application No. 348/DELNP/2003 A (22) Date of filing of Application: 10/03/2003
(54) Title of the invention: “A PROCESS FOR THE PREPARATION OF METAL PHENOLATE”
(51) International Classification 7 :C07C39/235
(30) Priority Data :
(31) Document No.:09/676,845
(32) Date : 29/09/2000
(33) Name of convention country : U.S.A.
(66) Filed U/s 5(2) : NIL
(61) Patent of addition to application No. NA
(62) Filed on : NA
(63) Divisional to Application No. :NIL
(64) Filed on : NA
Total Pages: 11
(71) Name of the applicant:
CROMPTON CORPORATION
Address of the Applicant:
199, Benson Road, Middlebury, Connecticut
06749, United States of America,
(72) Name of the Inventor:
WILLIAM PALMER ENLOW;
GARY VINCENT MARLIN
(57) Abstract:
A process for the preparation of a metal phenolate comprising:
a) reacting a phenol having the formula:
wherein each R 1 , R 2 , and R 3 is independently selected from the group consisting of
hydrogen, methyl, ethyl, n–propyl, iso–propyl, n–butyl, t–butyl, t–amyl, t–hexyl, cyclohexyl,
cumyl, t–pentyl, and t–octyl with a metal alcoholate having the formula (R 4 O)xQ where R 4 is a
monovalent organic radical, R 4 O is derived from [the] a corresponding alcohol R 4 OH, and Q is a
metal cation having a valence X to produce a metal phenolate and an alcohol R 4 OH wherein said
metal phenolate has the formula:
(R1
R1
R2
R3
wherein Q, x, and each R 1 , R 2 , R 3 are as previously defined; and reacting optionally in the
presence of a solvent;
b) removing the alcohol R 4 OH from the metal phenolate
R2
R3
OH
O)x Q
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