An antibiotic film comprises at least one organic polymeric film containing antibiotic zeolite, in which the content of the antibiotic zeolite is 10 to 100 mg per 1 m 2 of the organic polymeric film and the thickness of the organic polymeric film is not more than 15 microns and an antibiotic laminated film comprises a substrate, at least one side of which is laminated with the aforementioned antibiotic film. These films exhibit excellent antibiotic action although they contain rather small amount of antibiotic zeolite and the films also exhibit high transparency. These films can be used as materials for packaging foods, medical equipments and accessories and the like.

Antibiotic zeolite-containing film

The present invention relates to metallic sheets having an improved antimicrobial property and also related to a method of manufacturing such sheets. More particularly, it relates to the continuous coating on metallic sheets with a resin composition containing antimicrobial additives. The surface of the metallic article is afforded antimicrobial properties by coating a liquid dispersion or solution of fine particles made of an antimicrobial ingredient on the surface of the metallic sheet dispersed in a uniform layer and cured or dried to affix to the metallic surface. The inorganic antibacterial particles are metal component-supporting oxides and zeolite powders. The inorganic antibacterial core particles have at least a primary surface coating of at least one metal or metal compound having antimicrobial properties. Roll coaters apply the coating. The metallic article generally includes sheet articles made of metals, for example, metallic sheets made of stainless steel, conventional steel sheets and aluminum sheets or plate.

Antimicrobial coated metal sheet

An antibiotic resin composition comprises at least one antibiotic zeolite of which ion-exchangeable ions are partially or completely replaced with ammonium ionsand antibiotic metal ions, at least one discoloration inhibitor and at least one resin. The antibiotic resin composition exhibits excellent antibiotic property and does not discolor with time. Thus, the resin composition can be employed to form a variety of products which require antibacterial and/or antifungus properties.

Antibiotic resin composition

The disclosure describes methods for producing bulk, particulate material that includes solid, generally ellipsoidal particles. Irregularly shaped feed particles with average particle sizes of up to 25 microns on a volume basis are dispersed in at least a portion of a combustible gas mixture by application of force and/or fluidizing agents. The combustible mixture with particles in suspension is then delivered, while controlling agglomeration or re-agglomeration of the particles, to at least one flame front. There, the mixture and suspended particles are uniformly distributed across the surface(s) of and passed through the flame front(s) with a high concentration of particles in the mixture. This flame front and the resultant flame(s) with suspended particles are located in at least one "wall free" zone. In such zone(s) the flame(s) may expand while the particles are maintained in dispersion and heated, with controlled and highly efficient application of heating energy. At least partial fusion occurs within at least the surfaces of the particles at high thermal efficiencies, while agglomeration of particles during fusion is inhibited.

At least partly fused particulates and methods of making them by flame fusion

A method for preparing a dispersion containing antibiotic powder comprises mixing the antibiotic powder and a dispersing medium at a temperature at which the dispersing medium is in the form of a liquid under a reduced pressure of not more than 470 Torr. According to this method, the antibiotic powder is uniformly dispersed in various dispersing mediums and antibiotic products having high antibiotic action is effectively be provided by using the resulting dispersion.

Method for preparing dispersions containing antibiotic powder

A stabilizer for use in a halogen-containing resin is described comprising a crystalline aluminosilicate substituted with ions of a metallic element belonging to Group II or Group IVA of the Periodic Table for Group I (M) metal ion contained in said aluminosilicate and containing 10% by weight of less, as M2 O, of residual Group I metal ions.

Metal substituted zeolites as stabilizers for halogen-containing resins

PURPOSE: The titled composition prepared by incorporating hydroxyapatite with a deterioration inhibitor, capable of preventing the decomposition and bleeding of the deterioration inhibitor, enhancing the original function thereof, and having remarkably improved stability. CONSTITUTION: A polyolefin resin composition prepared by incorporating an olefinic polymer with a deterioration inhibitor and hydroxyapatite. Ethylene-vinyl acetate copolymer, polyethylene or polypropylene may be used as the polyolefin resin, and uniform fine particles having a molar ratio (Ca/P) between Ca and P of 1.5W1.8 and an average particle diameter ≤3μm are preferred as the hydroxyapatite. The amount of the hydroxyapatite is 0.1W2pts.wt. based on 100pts.wt. resin. An antioxidant, ultraviolet light absorber or light stabilizer may be used as the deterioration inhibitor. COPYRIGHT: (C)1982,JPO&Japio

Polyolefin resin composition

PURPOSE: To manufacture inorg. powder usable as an additive for improving the physical properties of various kinds of org. substances, a filler or a catalyst by substituting divalent metallic ions for part of the Na of sodium A-type zeolite. CONSTITUTION: An aqueous soln. of sodium silicate is mixed with an aqueous soln. of sodium aluminate in 0.5W3mol ratio of SiO 2 /Al 2 O 3 without causing back mixing, and the resulting amorphous aluminosilicic acid gel is aged to form sodium A-type zeolite crystals. The crystals are separated by filtration, washed in water, dispersed in water again, and brought into contact with an aqueous soln. of salt of Mg, Ca, Ba, Sr or other divalent metal having >5pH to substitute metallic ions for part of the Na ions. Thus, metal-substituted A type zeolite powder contg. residual Na ions by ≤10% as Na 2 O is manufactured. This powder has a uniform particle size distribution in which ≤6μm particle size occupies ≥80%. COPYRIGHT: (C)1982,JPO&Japio

Metal-substituted a-type zeolite and its manufacture

PURPOSE: To prepare the titled stabilizing agent having excellent thermal stabilization capability, and capable of suppressing the foaming of resin during molding and use, by mixing an organic additive constituting a halogen-containing resin composition with a dehydrated aluminosilicate ion-exchanged with II-group metal ion. CONSTITUTION: The titled stabilizer is prepared by mixing (A) 100pts.wt. of a dehydrated aluminosilicate (the dehydration is performed to an extent that there is essentially no water evaporation at or below the molding temperature of the resin composition, i.e. to a water-content of ≤8%) having a zeolite crystal structure and substituted with at least one kind of metal ion selected from the II-group and the IV-group metals (esp. calcium, etc.) and containing ≤10wt% of the residual sodium ions, with (B) ≥10pts.wt. of at least one kind of liquid organic additives constituting the halogen-containing resin composition and having higher boiling point than the molding temperature of the composition and a low melting point (e.g. plasticizer, stabilizer, etc.). The amount of the stabilizer to be added is 0.2W 10pts.wt. (as dehydrate) per 100pts.wt. of the resin. COPYRIGHT: (C)1982,JPO&Japio

Stabilizer for halogen-containing resin

PURPOSE: To obtain fine fused spherical silica in good yield by melting a silica raw material with a frame formed by combustion of a combustible gas and oxygen and introducing a cooling gas into a flame-forming zone. CONSTITUTION: A silica raw material is melted with a flame formed by combustion of a combustible gas and oxygen to produce fused spherical silica. In the process, a cooling gas is introduced into a frame-forming zone. The silica raw material used is preferably natural or synthetic silica of a as high a purity as possible. Purified quartzite, quartz sand, rock crystal, etc., are cited as the natural silica and silica which is a hydrolyzate of an organosilicate, such as ethyl silicate, prepared by hydrolyzing a silicon halide or neutralizing an aqueous solution of an alkali silica, etc., is cited as the synthetic silica. The above- mentioned silica raw materials are finely pulverized in a desired pulverizer, such as ball mill or jet mill. In most cases, the average particle diameter is ≤10μ, preferably within the range of 2-8μ. COPYRIGHT: (C)1990,JPO&Japio

Toshihiko Morishita

Papers

Metal substituted zeolites as stabilizers for halogen-containing resins

Polyolefin resin composition

Metal-substituted a-type zeolite and its manufacture

Stabilizer for halogen-containing resin

Production of fine fused spherical silica