U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Antibacterial cellulose fiber and production process thereof

Patent 5985301 Issued on November 16, 1999. Estimated Expiration Date: Icon_subject February 11, 2018. Estimated 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.

Patent References

3769060

Solubilization of the zinc salt of 1-hydroxy-2-pyridinethione
Patent #: 3940482
Issued on: 02/24/1976
Inventor: Grand

Polymer containing amorphous aluminosilicate particles and process for producing the same
Patent #: 4959268
Issued on: 09/25/1990
Inventor: Hagiwara, et al.

Antimicrobial agent Patent #: 5709870
Issued on: 01/20/1998
Inventor: Yoshimura, et al.

Inventors

Assignee

Application

No. 022101 filed on 02/11/1998

US Classes:

424/404, Antifungal or antibacterial424/405, Biocides; animal or insect repellents or attractants (e.g., disinfectants, pesticides, etc.)424/413, Cellulosic material or building material424/421, Inorganic particle424/618, Silver514/495, Gold or silver514/611, Nitrosamines (i.e., compounds containing nitroso bonded directly to amino nitrogen)514/644Amine oxides

Examiners

Primary: Levy, Neil S.

Attorney, Agent or Firm

International Class

A01N 025/10

Foreign Application Priority Data

1997-09-30 JP

Abstract

A production process of cellulose fiber is characterized in that tertiary amine N-oxide is used as a solvent for pulp, and a silver-based antibacterial agent and optionally magnetized mineral ore powder are added, followed by solvent-spinning. The cellulose fiber exhibits an excellent long lasting antibacterial effect and serves preferably as medical products such as bandage, gauze, and surgical robes.

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