Use of a plastic composition and a product obtained thereby

• US 20070082971A1
• Filed: 01/27/2005
• Published: 04/12/2007
• Est. Priority Date: 02/23/2004
• Status: Abandoned Application

• Current Assignee: Polygiene AB
• Original Assignee: Polygiene AB
• Inventors: Mocchia, Luigi
• Application Number:
  US10/585,862
• Publication Number:
  US 20070082971A1
• Time in Patent Office: Days
• US Class Current: 523/122
• CPC Class Codes: C08K 3/08 Metals
• CPC Class Codes: C08K 3/10 Metal compounds
• CPC Class Codes: C08K 3/24 Acids; Salts thereof C08K3/16 takes precedence

Abstract

Use of a plastic composition comprising an effective amount of an inorganic derivative containing silver, including silver salts and silver containing complexes for preparation of molded products respectively lacquered or painted products to provide them with a surface having antivirus activity even against SARS coronavirus and a product obtained thereby.

Claims

1-16. -16. (canceled)

17. A method for providing a molded lacquered or painted product with a surface having antivirus activity even against SARS coroavirus, wherein a plastic composition comprising an effective amount of an inorganic derivative containing silver, including silver salts and silver containing complexes is used.

18. The method according to claim 17, wherein the plastic of the plastic composition is a thermosetting resin.

19. The method according to claim 18, wherein the thermosetting resin is an amino resin selected from the group consisting of urea-formaldehyde resin, melamine-formaldehyde resin, melamine-urea-formaldehyde resin or a polyester.

20. The method according to claim 18, wherein the plastic composition is present as a solid molding compound in the form of powder, tables, pellets or granules.

21. The method according to claim 18, wherein the plastic composition is present as a dry constituent in a powder coating.

22. The method according to claim 18, wherein the composition contains free formaldehyde or a formaldehyde containing compound which can release formaldehyde.

23. The method according to claim 17, wherein the plastic composition comprises at least one filler selected from the group consisting of cellulose, glass fiber, carbon fiber, mica, lime and wood floor.

24. The method according to claim 18, wherein the thermosetting resin is present in liquid form, usually as a lacquer or paint comprising maleimide lacquer, melamine-formaldehyde resin, urea-formaldehyde resin or melamine-urea-formaldehyde resin.

25. The method according to claim 17, wherein the inorganic derivative containing silver is selected from the group consisting of silver sulphate, silver nitrate, silver chloride, silver-sodium-hydrogen-zirconium phosphate and silver sulfadiazine.

26. The method according to claim 17, wherein the plastic is a thermoplastic comprising polyethylene, polypropylene, polystyrene, polyvinyl chloride, a linear polyester and a polyacrylate.

27. The method according to claim 26, wherein the thermoplastic is present as a foil or a sheet.

28. The method according to claim 26, wherein the plastic composition is present as a so-called masterbatch in the form of pellets, granules or tablets having a content of inorganic silver derivative of 0.02 to 0.30 parts by weight per part by weight of the whole masterbatch, which masterbatch might have a high content of pigment also and intended to be mixed with a major part of the thermoplastic before any molding.

29. The method according to claim 26, wherein the thermoplastic is a polyacrylate or a linear polyester in liquid form as a lacquer or a paint.

30. The method according to claim 17, wherein the content of inorganic silver derivative is present in an amount of 0.00001 to 0.10 parts by weight, preferably 0.00003 to 0.001 parts by weight or, rather 0.00005 to 0.00008 parts by weight calculated per part by weight of the whole composition.

31. The method according to claim 17, wherein the molded products comprise sanitary articles, kitchen ware, table ware, ornamental articles, electrotechnology components and thermosetting laminates.

32. The molded, lacquered or painted product having a surface with antivirus activity even against SARS coronavirus obtained by the method of claim 17.