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:
Feb. 13, 2001
Filed:
Oct. 07, 1996
Applicant:
Inventors:
Jean-Marie Bernard, Mornant, FR;
Jean-Marc Frances, Villeurbanne, FR;
Bernard Jousseaume, Talence, FR;
Nicholas Noiret, Chevaigne, FR;
Michel Pereyre, Talence, FR;
Assignee:
Rhodia Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 3/100 ; B01J 2/300 ;
U.S. Cl.
CPC ...
B01J 3/100 ; B01J 2/300 ;
Abstract
Tin derivatives for use as oxygen-activated latent polycondensation catalysts. Said tin derivatives having a formula R,-Y,-R,, wherein R,and R,together form a divalent group or a single bond which insures the formation of a ring with n being 5, 6 or 7, the radicals Y, which may be similar or different, represent a tin-membered chain unit of a structure R′-Sn-R″, wherein R′ and R″, which may be similar or different are a hydrogen or a hydrocarbon radical.