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US Patent 5180402 - Dyed synthetic fiber comprising silver-substituted zeolite and copper compound, and process for preparing same
US Patent Issued on January 19, 1993
Estimated Patent Expiration Date:
May 3, 2011Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 3, 2011Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA dyed synthetic fiber having antibacterial and antifungal properties is described, which contains 0.01 to 20 weight % of a silver-substituted zeolite and 0.001 to 1.0 weight % of a substantially water-insoluble copper compound. The copper compound is present independent of zeolite particles in the fiber. The dyed synthetic fiber is prepared by incorporating a silver-substituted zeolite in a monomer or a polymerization mixture before the completion of polymerization in the step of preparing a polymer for the fiber; further incorporating the copper compound in the polymer before the spinning thereof into a fiber; spinning the polymer into a fiber; and dyeing the fiber. The dyed fiber retains a high level of antibacterial and antifungal properties. | InventorsAssigneeApplicationNo. 695220 filed on 05/03/1991US Classes:8/490, PROCESS OF PRESERVING SUBSTRATE COMBINED WITH DYEING OR PRODUCT THEREOF, E.G., BIOCIDAL OR FIRE RETARDANT TREATMENT, ETC.8/624, Group IB metal (Cu, Ag, Au)8/680, Dye containing -(o=)s(=o)-o-, -o(o=)s(=o)-o- or phosphorus oxide group8/685, Metallized dye, including metallization during dyeing (i.e., including in situ forming of metallized dye)8/924, Polyamide fiber428/323, Including a second component containing structurally defined particles523/122Composition having ingredient providing biocidal or biostatic protection thereto or process of preparingField of Search523/122, Composition having ingredient providing biocidal or biostatic protection thereto or process of preparing8/490, PROCESS OF PRESERVING SUBSTRATE COMBINED WITH DYEING OR PRODUCT THEREOF, E.G., BIOCIDAL OR FIRE RETARDANT TREATMENT, ETC.8/624Group IB metal (Cu, Ag, Au)ExaminersPrimary: Clingman, A. LionelAttorney, Agent or FirmUS Patent References4775585, Polymer article having an antibacterial property containing zeolite particles therein and the processes for producing sameIssued on: 10/04/1988 Inventor: Hagiwara , et al.4849223, Antimicrobial compositions consisting of metallic silver combined with titanium oxide or tantalum oxide Issued on: 07/18/1989 Inventor: Pratt , et al.4906464, Method for preparing dispersions containing antibiotic power Issued on: 03/06/1990 Inventor: Yamamoto, et al.4911898, Zeolite particles retaining silver ions having antibacterial properties Issued on: 03/27/1990 Inventor: Hagiwara, et al.4938955, Antibiotic resin composition Issued on: 07/03/1990 Inventor: Niira, deceased, et al.4938958Antibiotic zeolite Issued on: 07/03/1990 Inventor: Niira, deceased, et al. International ClassesD06P 005/00D01F 001/10 Foreign Application Priority Data1990-05-08 JP |
