Process for making a microbicidal article

• US 2,791,518 A
• Filed: 03/21/1955
• Issued: 05/07/1957
• Est. Priority Date: 03/21/1955
• Status: Expired due to Term

• Current Assignee: Fred W. Davis, Thomas A. Stokes Jr
• Original Assignee: Fred W. Davis, Thomas A. Stokes Jr
• Inventors: Stokes, Thomas A. Jr., Davis, Fred W.
• Application Number:
  US03/495,766
• Time in Patent Office: 778 Days
• US Class Current: 427/337
• CPC Class Codes: D06M 16/00 Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
• CPC Class Codes: Y10S 428/907 Resistant against plant or animal attack

Claims

1. THE METHOD FOR TREATING AN ARTICLE TO RENDER IT MICROBICADAL TO MICROOGANISMS COMING INTO CONTACT WITH ITS SURFACE, WHICH INCLUDES:

WETTING THE ARTICLE SUCCESSIVELY WITH FIRST AND SECIND AQUEOUS SOLUTIONS, THE FIRST SOLUTION COMPRISING A WATER-SOLUBLE BASIC NITROGEN COMPOUND AND A SILVER SALT SOLUBLE IN THE AQUEOUS BASIC NITROGEN COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF A SPARINGLY WATER-SOLUBLE SILVER COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING CATIONS OF AS SUBSTANTIALLY WATER-INSOLUTION COMPOUND O A METAL OTHER THAN SILVER AND ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF THE SUBSTANTALLY WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER, THE CATIONS AND ANIONS OF THE WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER BEING IN DIFFERENT SOLUTIONS;

AND SUBSEQUENTLY REMOVING BASIC NITROGEN COMPOUND FROM THE WETTED ARTICLE.