Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Joerg Hinrich Fechner0
Jose Zimmer0
Roland Schnabel0
Rupert Schnell0
Date of Patent
July 10, 2007
0Patent Application Number
104770980
Date Filed
May 7, 2002
0Patent Primary Examiner
Patent abstract
The method of protecting a polymeric plastic from attack by bacteria and fungi includes providing bioactive glass particles having a mean particles size preferably less than 2 μm as an additive incorporated into the polymeric plastic. The bioactive glass particles contain 40 to 60% by weight of SiO2, 10 to 30% by weight of CaO, 10 to 35% by weight of Na2O, 2 to 8 % by weight of P2O5, 0 to 25% by weight of CaF2, 0 to 10% by weight of B2O3, 0 to 8% by weight of K2O and/or 0 to 5% by weight of MgO. The additive is included in amounts of up to 25% by weight in the polymeric plastic.
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