Christopher S Bull

US Patent:

58305262, Nov 3, 1998

Filed:

Feb 19, 1997

Appl. No.:

8/802710

Inventors:

John E. Wilson - Quakertown PA
Christopher Bull - Bethesda MD

Assignee:

FiberMark, Inc. - Brattleboro VT

International Classification:

B05D 302
B05D 312
B05D 500

US Classification:

427 21

Abstract:

A substrate such as a woven or nonwoven fabric bound with a light-activated dye alone or in combination with additional conventional antimicrobial agents. The substrate is impregnated with a light-activated non-leachable dye having antimicrobial and/or antiviral characteristics which can be imparted to the substrate. The dye is bound by a cationic or anionic binder such as a water soluble polymer or carrageenan. Upon exposure to normal light, the dye generates singlet oxygen that kills microorganisms and viruses.

US Patent:

62390481, May 29, 2001

Filed:

Dec 28, 1994

Appl. No.:

8/365464

Inventors:

John E. Wilson - Quakertown PA
Christopher Bull - Bethesda MD

Assignee:

FiberMark, Inc. - Brattleboro VT

International Classification:

B32B 2704

US Classification:

442123

Abstract:

A substrate such as a woven or nonwoven fabric bound with a light-activated dye alone or in combination with additional conventional antimicrobial agents. The substrate is impregnated with a light-activated non-leachable dye having antimicrobial and/or antiviral characteristics which can be imparted to the substrate. The dye is bound by a cationic or anionic binder such as a water soluble polymer or carrageenan. Upon exposure to normal light, the dye generates singlet oxygen that kills microorganisms and viruses.