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. 29, 2002
Filed:
Feb. 27, 1998
Percy A. Jaquess, Tigrett, TN (US);
Buckman Laboratories Internationals, Inc., Memphis, TN (US);
Abstract
Enzymes are stabilized with pre-superpolyamide or pre-fiber-forming polyamide oligomers having a polymer chain backbone containing only secondary amide linkages. The polyamide is combined with an enzyme such as in a liquid enzymatic composition or where the enzyme is in a non-fluid state such as a powder to improve stability and shelf-life of the enzyme. The polyamide oligomer is a condensation product of at least one dibasic acid and at least one diamine. The dibasic acid may be a saturated or unsaturated C -C dicarboxylic acid, and the diamine may be 1,2-diaminoethane, 1,3-diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane, 1,8-diaminooctane or 1,10-diaminodecane. Enzymes stabilized include proteases, xylanases, amylases, cellulases and lipases.