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:
Dec. 12, 2006
Filed:
Jul. 17, 2002
Robert James Kelly, Christchurch, NZ;
Gillian Helen Worth, Lincoln, NZ;
Alisa Dawn Roddick-lanzilotta, Christchurch, NZ;
Douglas Alexander Rankin, Christchurch, NZ;
Gregory David Ellis, Christchurch, NZ;
Paul Johannes Roy Mesman, Christchurch, NZ;
Conal Garth Summers, Christchurch, NZ;
Diane Joyce Singleton, Christchurch, NZ;
Robert James Kelly, Christchurch, NZ;
Gillian Helen Worth, Lincoln, NZ;
Alisa Dawn Roddick-Lanzilotta, Christchurch, NZ;
Douglas Alexander Rankin, Christchurch, NZ;
Gregory David Ellis, Christchurch, NZ;
Paul Johannes Roy Mesman, Christchurch, NZ;
Conal Garth Summers, Christchurch, NZ;
Diane Joyce Singleton, Christchurch, NZ;
Keratec Limited, Canterbury, NZ;
Abstract
A process for the preparation of soluble proteins of high molecular weight with little or no damage to the structural integrity of the proteins. The process is economically and environmentally acceptable by virtue of the cost of reagents that are used, and the recycling of some of those reagents, and is suitable for the production of soluble proteins on a large scale. The process includes a first stage using oxidative sulfitolysis followed by a second stage using mild conditions to extract the soluble protein. In the case of wool as the protein source the process leads to the production of soluble keratin proteins fractionated into the classes S-sulfonated keratin intermediate filament proteins and S-sulfonated keratin high sulfur proteins.