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:
Oct. 17, 2000
Filed:
Jul. 12, 1996
Peter Frisk, Chicago, IL (US);
Tetra Laval Holdings & Finance, SA, Pully, CH;
Abstract
A polymeric material integrated with a metal catalyst for promoting the degradation of a sterilants such as hydrogen peroxide and ozone. Examples of possible polymeric materials are PET, COPET and any mixture thereof. The polymer materials are usually configured into containers for aseptic processing. The metal catalyst may be selected from the group consisting of iron, cobalt, nickel, ruthenium, palladium, osmium, iridium, platinum, copper, manganese, salts thereof, oxides thereof and mixtures thereof. The metal catalyst is less than ten percent of the total weight of the modified polymeric material. The metal catalyst may be a plurality of nanosize particles or microsize particles. The metal catalyst may also be applied as a thin film onto a polymeric resin for absorption thereby. The sterilants usually become entrapped in amorphous zones of the polymeric material which results in higher than acceptable levels of sterilants in the containers. The novel polymeric material allows for application of a sterilant in the vapor phase, and substantially reduces the residence time of the sterilant as a container undergoes aseptic processing thereby expediting the aseptic process.