scispace - formally typeset
Patent

Metal-substituted a-type zeolite and its manufacture

TLDR
In this article, a metal-substituted A-type zeolite powder is used as an additive for improving the physical properties of various kinds of org. powders.
Abstract
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

read more

Citations
More filters
Patent

Antibiotic zeolite-containing film

TL;DR: An antibiotic film comprises at least one organic polymeric film containing antibiotic zeolite, in which the content of the antibiotic zolite is 10 to 100 mg per 1 m 2 of the organic polymer film and the thickness of the polymeric material is not more than 15 microns as discussed by the authors.
Patent

Antimicrobial coated metal sheet

TL;DR: In this article, a method of continuous coating on metallic sheets with a resin composition containing antimicrobial additives was proposed, in which 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.
Patent

Antibiotic resin composition

TL;DR: An antibiotic resin composition comprises at least one antibiotic zeolite of which ion-exchangeable ions are partially or completely replaced with ammonium ions and antibiotic metal ions, a discoloration inhibitor and at least a resin this article.
Patent

Method for preparing dispersions containing antibiotic powder

TL;DR: In this article, a method for preparing a dispersion containing antibiotic powder comprises mixing the antibiotic powder and a dispersing medium at a temperature at which the mixture is in the form of a liquid under a reduced pressure of not more than 470 Torr.
Patent

Zeolite particle-containing polymer and its production

TL;DR: In this paper, the authors defined a polymer having a bactericidal action, undergoing little change in properties, and being applicable to a wide variety of polymers, comprising an organic polymer and solid zeolite particles carrying bactericidal metallic ions.
References
More filters
Patent

Electricclight display unit

TL;DR: In this paper, a diode between the shift register and SCR gate of a circuit which displays the information being displayed on the shifting tape with the electric light was used to eliminate the errorneous motion due to the trouble.