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. 30, 2001
Filed:
Apr. 03, 1998
Jo{umlaut over (e)}l Crouzet, Sceaux, FR;
Didier Faucher, Paris, FR;
Olivier Favre-Bulle, Lyon, FR;
Catherine Jourdat, Lyon, FR;
Dominique Petre, Lyon, FR;
J{acute over (e)}r{circumflex over (o)}me Pierrard, Lyon, FR;
Denis Thibaut, Paris, FR;
Carole Guitton, Lyon, FR;
Rhone-Poulenc Fibres et Polymeres S.A., Courbevoie Cedex, FR;
Abstract
The present invention relates to a process for the enzymatic hydrolysis of polyamides 6.6 to give adipic acid monomers and hexamethylenediamine monomers. The present invention further relates to an enzyme with amidase activity particularly towards substrates of the oligomer type derived from PA 6.6 and/or PA 6, said enzyme being characterized in that it consists of a peptide sequence corresponding to SEQ ID NO: 1 in the attached sequence listing and/or at least one polypeptide homologous to this sequence. The invention further relates to the DNA coding for said enzyme and to the biological precursors thereof The invention further relates to the microorganisms capable of producing this enzyme and to the hydrolysis process in which this enzyme and/or these microorganisms are applied.