US 12,232,495 B2
Method for producing an antimicrobial composite material and antimicrobial composite material
Joseph-Peter Guggenbichler, Kössen (AT)
Assigned to AMISTEC GMBH & CO. KG, Kössen In Tirol (AT)
Appl. No. 15/105,495
Filed by AMISTEC GMBH & CO. KG, Kössen in Tirol (AT)
PCT Filed Dec. 19, 2014, PCT No. PCT/EP2014/078821
§ 371(c)(1), (2) Date Aug. 11, 2016,
PCT Pub. No. WO2015/091993, PCT Pub. Date Jun. 25, 2015.
Claims priority of application No. 10 2013 114 575.2 (DE), filed on Dec. 19, 2013.
Prior Publication US 2019/0029259 A1, Jan. 31, 2019
Int. Cl. A61P 31/04 (2006.01); A01N 25/26 (2006.01); A01N 59/16 (2006.01); A01N 59/20 (2006.01); A01P 1/00 (2006.01); A61L 2/00 (2006.01); A61L 2/232 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C09D 1/00 (2006.01); C09D 5/14 (2006.01); C09D 7/62 (2018.01); C09D 7/63 (2018.01); C08K 5/00 (2006.01)
CPC A01N 59/16 (2013.01) [A01N 25/26 (2013.01); A01N 59/20 (2013.01); A61L 2/232 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C09D 1/00 (2013.01); C09D 5/14 (2013.01); C09D 7/62 (2018.01); C09D 7/63 (2018.01); C08K 2003/2255 (2013.01); C08K 2003/2258 (2013.01); C08K 2003/2296 (2013.01); C08K 5/0058 (2013.01)] 15 Claims
 
1. An antimicrobially effective composite material, wherein the antimicrobially effective composite material includes at least one molybdenum-containing inorganic compound incorporated into at least one further material, wherein the at least one further material forms a matrix;
wherein the at least one molybdenum-containing inorganic compound:
is present in a form of particles distributed within the matrix;
is a compound of the molecular formula AzMoO4, where:
A is a metal ion selected from the group consisting of K, Mg, Ca, Ag, Cu, Bi, V, Ti, and Zn,
A is a cation with a charge of n+, and
n*z=+2;
has an average particle size of between 0.1 μm and 0.5 μm;
does not elute or degrade as a result of contact with water; and
does not elute or degrade to release metal cations;
wherein the composite material includes at least one hydrophilizing and/or hygroscopic agent comprising silica gel, wherein the silica gel is present in a form of particles having a particle size distribution with an average particle diameter of between 0.1 μm and 25 μm;
wherein the mass content of the at least one hydrophilizing and/or hygroscopic agent relative to the total mass of the composite material is between 0.1% and 15% by weight;
wherein the mass content of the at least one hydrophilizing and/or hygroscopic agent is equal to one to two times the mass content of the at least one molybdenum-containing inorganic compound;
wherein the composite material, other than including the at least one molybdenum-containing inorganic compound, is otherwise free of elemental molybdenum, MoO2, MoO3, molybdenum carbide, molybdenum nitride, molybdenum silicide, molybdenum sulfide and/or molybdenum containing alloys, and
wherein the composite material absorbs between 0.1 wt. % to 3 wt. % of humidity in environments with less than 10% of relative air humidity.