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:
Jan. 25, 2000
Filed:
May. 20, 1998
Michael David Jones, Yorkshire, GB;
Matthew David Lunn, Leeds, GB;
Andrew David Poole, Yorkshire, GB;
Adele Shenton, Hull, GB;
BP Chemicals Limited, London, GB;
Abstract
An ion-exchange resin stabilized against shrinkage, the resin being loaded with at least one amphiphilic ion in the absence of sodium cations. Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives by contacting the liquid carboxylic acid and/or carboxylic acid anhydride with the ion-exchange resin stabilized against shrinkage as aforesaid, the ion-exchange resin being loaded with one or more of the metals silver, palladium or mercury.