Delivery system and method of making article

Abstract

A water treatment composition comprised of a metal ion yielding material secured to an adhesive, with the adhesive secured to a structure, so that when the structure is placed in a body of water the concentration of metal ions is maintained at level sufficient to kill bacteria and sufficient to permit release of metal ions over an extended period of time. Also, a method of securing a metal ion yielding material, as well as a method of manufacture of an article, by first adhering the metal ion yielding material to a structure and then forming the structure into an article for placement in a body of water to maintain the desired metal ion concentration therein.

1 .- 10 . (canceled) 
     
     
         11 . A method of making an article for insitu water treatment comprising the steps of:
 selecting a water treatment material from the group consisting of zinc sulfate, zinc carbonate, zinc chloride, copper chloride, copper carbonate, copper sulfate, silver chloride, stannous chloride and stannic chloride;   selecting an adhesive from the group consisting of polyurethane, epoxy resin, polyvinyl acetate and polyvinyl alcohol;   selecting a water insoluble solid structure;   either combining the selected adhesive and selected water treatment in a slurry and simultaneously coated onto the structure using a die coater or roll coating the selected adhesive onto the structure and applying the selected water treatment material to the roll coated adhesive on the structure;   allowing the adhesive to set to thereby secure the water treatment material to the solid   
       structure; and
 forming the structure into an article for placement into a body of water to thereby enable the structure to adhesively support the water treatment material thereon in a condition that maintains a water concentration of metal ions less than 1000 parts per billion (ppb). 
 
     
     
         12 .- 13 . (canceled) 
     
     
         14 . A method of making an article for insitu water treatment comprising the steps of:
 selecting a water treatment material from the group consisting of zinc sulfate, zinc carbonate, zinc chloride, copper chloride, copper carbonate, copper sulfate, silver chloride, stannous chloride and stannic chloride;   selecting an adhesive from the group consisting of polyurethane, epoxy resin, polyvinyl acetate and polyvinyl alcohol;   selecting a water insoluble solid structure;   either die coating the selected adhesive onto the structure and applying the selected water treatment material to the die coated adhesive on the structure or roll coating the selected adhesive onto the structure and roll coating the selected water treatment material on the adhesive on the structure;   allowing the adhesive to set to thereby secure the water treatment material to the solid   
       structure; and
 forming the structure into an article for placement into a body of water to thereby enable the structure to adhesively support the water treatment material thereon in a condition that maintains a water concentration of metal ions less than 1000 parts per billion (ppb). 
 
     
     
         15 .- 17 . (canceled) 
     
     
         18 . A process of making a water treatment composition including the steps of:
 a) mixing a first amount of silver nitrate into a first batch of water to form a silver nitrate mixture;   b) mixing a first amount of sodium chloride into the silver nitrate mixture to form a silver chloride mixture;   c) mixing an adhesive securable to both silver chloride and to support particles into a second batch of water to form an adhesive mixture;   d) combing the silver chloride mixture and the adhesive mixture to form an adhesive silver chloride mixture;   e) applying the adhesive silver chloride mixture to support particles; and   f) curing the adhesive silver chloride mixture insitu on the support particles to form support particles having a coating containing silver chloride.   
     
     
         19 . The process of making a water treatment composition according to  claim 18  wherein mixing an adhesive into a second batch of water includes mixing polyvinyl acetate adhesive into a second batch of water. 
     
     
         20 . The process of making a water treatment composition according to  claim 18  wherein mixing an adhesive into a second batch of water includes mixing polyurethane adhesive into a second batch of water.