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:
Mar. 21, 2006
Filed:
Aug. 02, 2001
Kenneth Ekman, Piispanristi, FI;
Barry Anthony Murrer, Berkshire, GB;
Robert Peltonen, Kaarina, FI;
Mats Sundell, Littoinen, FI;
Kenneth Ekman, Piispanristi, FI;
Barry Anthony Murrer, Berkshire, GB;
Robert Peltonen, Kaarina, FI;
Mats Sundell, Littoinen, FI;
Johnson Matthey Public Limited Company, London, GB;
Oy Smoptech Ab, Turku, FI;
Abstract
A fibrous catalyst comprises at least one transition metal anchored to a polymer fiber having a plurality of grafted units grafted to a polymer backbone. The polymer backbone may be a polyolefin, a fluorinated polyethylene, cellulose or viscose. The grafted units comprise a salt of a carboxylic acid, which in a preferred embodiment is a sodium salt of acrylic acid. The catalysts are particularly suitable for scavenging oxygen from sealed packages or containers and may further comprise a chemical indicator for the presence or absence of oxygen.