Nonwoven materials coated with fluoropolymer and antimicrobial agent

Abstract

An article having a nonwoven material and a coating contacting the nonwoven material, the coating comprising at least one fluorochemical and at least one antimicrobial agent. The fluorochemical comprises at least one fluoropolymer. The add-on value of the at least one antimicrobial agent on the nonwoven material is less than 0.75% and the coating provides at least a 4-log reduction within 5 minutes when measured using AATCC Method 100. The at least one antimicrobial agent is selected from the group consisting of a benzalkonium salt, a benzethonium salt, a octenidine salt, a chlorhexidine salt, free base chlorhexidine, triclosan and combinations thereof. The coating provides at least a 2-log reduction within 5 minutes when measured using AATCC Method 100.

1 . An article comprising:
 a nonwoven material; and   a coating contacting the nonwoven material, the coating comprising at least one fluorochemical and at least one antimicrobial agent,   wherein the fluorochemical comprises at least one fluoropolymer,   wherein the add-on value of the at least one antimicrobial agent on the nonwoven material is less than 0.75%, and   wherein the coating provides at least a 4-log reduction within 5 minutes when measured using AATCC Method 100.   
     
     
         2 . The article of  claim 1 , wherein the nonwoven material comprises spunbond meltblown spunbond polypropylene. 
     
     
         3 . The article of  claim 1 , wherein the at least one antimicrobial agent is selected from the group consisting of a quaternary ammonium salt, a composition having elemental silver, a biguanide, an amidine, a phenol derived compound, and combinations thereof. 
     
     
         4 . The article of  claim 3 , wherein the quaternary ammonium salt is selected from the group consisting of a benzalkonium, a benzethonium, a octenidine, a cetrimonium, a cetylpyridinium, a benzoxonium, a didecyldimethylammonium, a dodeclonium, and combinations thereof. 
     
     
         5 . The article of  claim 4 , wherein the quaternary salt is selected from the group consisting of benzalkonium chloride, benzethonium chloride, octenidine dihydrochloride, cetrimonium bromide, cetrimonium chloride, cetylpyridinium chloride, benzoxonium chloride, didecyldimethylammonium chloride, dodeclonium bromide, and combinations thereof. 
     
     
         6 . The article of  claim 3 , wherein the biguanide is selected from the group consisting of polyhexamethylene biguanide, chlorhexidine gluconate, chlorhexidine acetate, and combinations hereof. 
     
     
         7 . The article of  claim 1 , wherein the at least on fluoropolymer comprises a fluoroalkyl acrylic copolymer. 
     
     
         8 . The article of  claim 1 , wherein the add-on value of the at least one fluorochemical on the nonwoven material is less than 0.25%. 
     
     
         9 . The article of  claim 1 , wherein the add-on value of the at least one antimicrobial agent on the nonwoven material is less than 0.50%. 
     
     
         10 . The article of  claim 1 , wherein the add-on value of the at least one antimicrobial agent on the nonwoven material is less than 0.25%. 
     
     
         11 . The article of  claim 1 , wherein the fluoropolymer is represented by the following formula: 
       
         
           
           
               
               
           
         
       
       wherein n is 0-50. 
     
     
         12 . The article of  claim 1 , wherein the article is a medical article selected from the group consisting of: gowns, shoe covers, drapes, wraps, caps, lab coats, curtains, and face masks. 
     
     
         13 . An article comprising:
 a nonwoven material; and   a coating contacting the nonwoven material, the coating comprising at least one fluorochemical and at least one antimicrobial agent,   wherein the fluorochemical comprises at least one fluoropolymer,   wherein the at least one antimicrobial agent is selected from the group consisting of a benzalkonium salt, a benzethonium salt, a octenidine salt, a chlorhexidine salt, free base chlorhexidine, triclosan and combinations thereof, and   wherein the coating provides at least a 2-log reduction within 5 minutes when measured using AATCC Method 100.   
     
     
         14 . The article of  claim 13 , wherein the nonwoven material comprises spunbond meltblown spunbond polypropylene. 
     
     
         15 . The article of  claim 13 , wherein the at least on fluoropolymer comprises a fluoroalkyl acrylic copolymer. 
     
     
         16 . The article of  claim 13 , wherein the article is a medical article selected from the group consisting of: gowns, shoe covers, drapes, wraps, caps, lab coats, curtains, and face masks. 
     
     
         17 . The article of  claim 13 , wherein the at least one antimicrobial agent is selected from the group consisting of benzalkonium chloride, benzethonium chloride, octenidine dihydrochloride, chlorhexidine gluconate, and combinations thereof. 
     
     
         18 . The article of  claim 13 , wherein the fluoropolymer is represented by the following formula: 
       
         
           
           
               
               
           
         
       
       wherein n is 0-50.