Novel reading inhibit agents

Abstract

Disclosed is an optical disk, card or media which comprises: a) a plurality of data structures that are readable by the interrogating beam of light; and b) a composition on or in the optical disk, card or media disposed so that when the optical disk, card or media is used in the optical read-out system, the interrogating beam of light passes through the composition before or after contacting some or all of the data structures. The composition comprises a polymeric matrix with an organometallic complex dissolved therein or with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein. The composition is substantially transparent to the interrogating beam and/or is substantially colorless. Alternatively, the composition comprises a solid polymeric matrix with an olefinic compound dissolved or uniformly dispersed therein wherein double bond in the olefinic compound undergoes oxidative cleavage promoted by a transition metal catalyst and a thiophenol or a catalytic amount of a thiyl radical and wherein the composition is substantially transparent to the interrogating beam and/or is substantially colorless.

1 . An optical disk, card or media for use in an optical read-out system that comprises a light source operative to produce an interrogating beam of light for reading data structures, wherein the optical disk, card or media comprises:
 a. a plurality of data structures that are readable by the interrogating beam of light;   b. a composition on or in the optical disk, card or media disposed so that when the optical disk, card or media is used in the optical read-out system, the interrogating beam of light passes through the composition before or after contacting some or all of the data structures, wherein the composition comprises a polymeric matrix with an organometallic complex dissolved therein or with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein and wherein the composition is substantially transparent to the interrogating beam and/or is substantially colorless,   
     wherein the composition in or on the optical disk, after exposure to ambient conditions, is morphologically unstable. 
   
   
       2 . The optical disk or card of  claim 1  further comprising:
 a. a metallic layer; and   b. a substrate disposed in a confronting relationship with the metallic layer.   
   
   
       3 . The optical disk or card of  claim 2  wherein the composition is a film superimposed over at least some of the data structures. 
   
   
       4 . The optical disk or card of  claim 2  wherein the composition is interposed between the metallic layer and the substrate. 
   
   
       5 . The optical disk or card of  claim 2  wherein the organometallic complex or nanoparticles react when exposed to an ambient condition to form a product which reduces the transparency of the composition to the interrogating beam and/or increases the coloration of the composition. 
   
   
       6 . The optical disk or card of  claim 2  wherein the organometallic complex or nanoparticles react when exposed to oxygen, moisture, light and/or heat to form a product which reduces the transparency of the composition to the interrogating beam and/or increases the coloration of the composition. 
   
   
       7 . The optical disk or card  claim 6  wherein the composition is a solid solution of an organometallic complex dissolved in a polymeric matrix. 
   
   
       8 . The optical disk or card of  claim 7  wherein the organometallic complex is a cyclopentadienyl or CO complex of iron, chromium, nickel, cobalt, titanium, tungsten, platinum or ruthenium. 
   
   
       9 . The optical disk or card of  claim 8  wherein the organometallic complexes is Fe(CO) 5  complex, CO 2 (CO) 8  complex or nickel cyclooctoadiene complex. 
   
   
       10 . The optical disk or card of  claim 6  wherein the composition is a solid polymeric matrix with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein. 
   
   
       11 . The optical disk or card of  claim 10  wherein the metal or transition metal nanoparticles oxidize when exposed to air. 
   
   
       12 . The optical disk or card of  claim 11  wherein metal or transition metal is Al, Si, Cr, Fe, Co, Ni, Cu, Zn, In, Sn, Ag, Au, Pt, Pd, Mo or W. 
   
   
       13 . The optical disk or card of  claim 10  further comprising a ligand which stabilizes the metal or transition metal nanoparticles. 
   
   
       14 . The optical disk or card of  claim 13  wherein the metal or transition metal is Au, Ag, Pt or Pd and the ligand is a monovalent substituted or unsubstituted thio-alkyl, thio-cycloalkyl, thio-arylalkyl, sulfide or disulfide ligand. 
   
   
       15 . The optical disk or card of  claim 13  wherein the metal or transition metal is Fe, Al, Cu or Co and the ligand is an alkyl carboxylic acid. 
   
   
       16 . The optical disk or card of  claim 6  wherein the polymeric matrix is a thermoplastic polymer. 
   
   
       17 . The optical disk or card of  claim 6  wherein the polymeric matrix is formed from a photopolymerizable or thermopolymerizable monomer and/or oligomer comprising ethylenically unsaturated groups, epoxide groups or combinations thereof. 
   
   
       18 . A method for coating an internal or external surface of a device for use in an optical read-out system with a layer that is substantially transparent to visible light wherein the layer undergoes a reduction in said transparency when exposed to an ambient condition, said method comprising the steps of:
 a. dispensing onto the surface a film of a solution comprising at least one monomer or at least one oligomer, wherein the solution additionally comprises an organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles dissolved therein or uniformly dispersed therein; and   b. polymerizing the monomer(s) or oligomer(s) to form a polymeric coating, wherein the coating is disposed so that an interrogating beam of light passes through the coating before or after contacting some or all of the information carrying layer,   
     wherein the solution dispensed onto the surface, after exposure to ambient conditions, is morphologically unstable. 
   
   
       19 . The method of  claim 18  wherein the device is an optical disk or card or a part used in the manufacture of an optical disk or card. 
   
   
       20 . The method of  claim 19  wherein the device is a substrate, metallized layer, information carrying layer or barrier layer used in the manufacture of an optical disk or card. 
   
   
       21 . The method of  claim 19  wherein the organometallic complex or nanoparticles react when exposed to an ambient condition to form a product which reduces the transparency of the layer or increases the coloration of the layer. 
   
   
       22 . The method of  claim 19  wherein the organometallic complex or nanoparticles react when exposed to an ambient condition to form light scattering centers. 
   
   
       23 . The method of  claim 20  wherein the organometallic complex or nanoparticles react when exposed to oxygen, moisture, light and/or heat to form a product which reduces the transparency of the polymerized monomer or increases the coloration of the layer. 
   
   
       24 . The method  claim 23  wherein the monomer solution comprises an organometallic complex dissolved therein. 
   
   
       25 . The method of  claim 24  wherein the organometallic complex is a cyclopentadienyl or CO complex of iron, chromium, nickel, cobalt, titanium, tungsten, platinum or ruthenium. 
   
   
       26 . The method of  claim 25  wherein the organometallic complex is Fe(CO) 5  complex, CO 2 (CO) 8  complex or nickel cyclooctadiene. 
   
   
       27 . The method of  claim 23  wherein the monomer solution comprises metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed or dissolved therein. 
   
   
       28 . The method of  claim 27  wherein the metal or transition metal nanoparticles oxidize when exposed to air. 
   
   
       29 . The method of  claim 28  wherein metal or transition metal is Al, Si, Cr, Fe, Co, Ni, Cu, Zn, In, Sn, Ag, Au, Pt, Pd, Mo or W. 
   
   
       30 . The method of  claim 27  wherein the monomer solution further comprises a ligand which stabilizes the metal or transition metal nanoparticles. 
   
   
       31 . The method of  claim 30  wherein the metal or transition metal is Au, Ag, Pt or Pd and the ligand is a monovalent substituted or unsubstituted thio-alkyl, thio-cycloalkyl, thio-arylalkyl, sulfide or disulfide ligand. 
   
   
       32 . The method of  claim 30  wherein the metal or transition metal is Fe, Al, Cu or Co and the ligand is an alkyl carboxylic acid. 
   
   
       33 . The method of  claim 23  wherein the monomer solution comprise one or more monomers or oligomer(s) which form thermoplastic a polymer when polymerized. 
   
   
       34 . The method of  claim 23  wherein the monomer or oligomer is olefinic or epoxy monomer or oligomer that is photopolymerizable or thermopolymermizable. 
   
   
       35 . A method for coating an internal or external surface of an information carrying layer of a device for use in an optical read-out system with a layer that is substantially transparent to visible light wherein the layer undergoes a reduction in said transparency when exposed to an ambient condition, said method comprising the steps of:
 a. dispensing onto the surface a film of a solution of at least one polymer, wherein the solution additionally comprises an organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles dissolved therein or uniformly dispersed therein; and   b. removing the solvent from the solution to form the coating, wherein the coating is   
     disposed so that an interrogating beam of light passes through the coating before or after contacting some or all of the information carrying layer, 
     wherein the solution dispensed on the surface, after exposure to ambient conditions, becomes morphologically unstable. 
   
   
       36 . The method of  claim 35  wherein the device is an optical disk or card or a part used in the manufacture of an optical disk or card. 
   
   
       37 . The method of  claim 36  wherein the device is a substrate, metallized layer, information carrying layer or barrier layer used in the manufacture of an optical disk or card. 
   
   
       38 . The method of  claim 36  wherein the organometallic complex or nanoparticles react when exposed to an ambient condition to form a product which reduces the transparency of the layer or increases the coloration of the layer. 
   
   
       39 . The method of  claim 36  wherein the organometallic complex or nanoparticles react when exposed to an ambient condition to form light scattering centers. 
   
   
       40 . The method of  claim 37  wherein the organometallic complex or nanoparticles react when exposed to oxygen, moisture, light and/or heat to form a product which reduces the transparency of the polymer or increases the coloration of the layer. 
   
   
       41 . The method  claim 40  wherein the polymer solution comprises an organometallic complex dissolved therein. 
   
   
       42 . The method of  claim 41  wherein the organometallic complex is a cyclopentadienyl or CO complex of iron, chromium, nickel, cobalt, titanium, tungsten, platinum or ruthenium. 
   
   
       43 . The method of  claim 42  wherein the organometallic complex is Fe(CO) 5  complex, CO 2 (CO) 8  complex or nickel cyclooctadiene. 
   
   
       44 . The method of  claim 40  wherein the polymer solution comprises metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed or dissolved therein. 
   
   
       45 . The method of  claim 44  wherein the metal or transition metal nanoparticles oxidize when exposed to air. 
   
   
       46 . The method of  claim 45  wherein metal or transition metal is Al, Si, Cr, Fe, Co, Ni, Cu, Zn, In, Sn, Ag, Au, Pt, Pd, Mo or W. 
   
   
       47 . The method of  claim 44  wherein the monomer solution further comprises a ligand which stabilizes the metal or transition metal nanoparticles. 
   
   
       48 . The method of  claim 47  wherein the metal or transition metal is Au, Ag, Pt or Pd and the ligand is a monovalent substituted or unsubstituted thio-alkyl, thio-cycloalkyl, thio-arylalkyl, sulfide or disulfide ligand. 
   
   
       49 . The method of  claim 47  wherein the metal or transition metal is Fe, Al, Cu or Co and the ligand is an alkyl carboxylic acid. 
   
   
       50 . The method of  claim 40  wherein the polymer is a thermoplastic polymer. 
   
   
       51 . The method of  claim 40  wherein the polymer is formed from an olefinic or epoxy monomer or a photopolymerizable or thermopolymermizable oligomer. 
   
   
       52 . A method of limiting access to data stored on an optical disk, card, media, said optical disk, card or media being used in an optical read-out system that comprises a light source operative to produce an interrogating beam of light for reading data structures, said method comprising the step of exposing the optical disk, card or media to an ambient condition, wherein the optical disk, card or media comprises:
 a. a plurality of data structures that are readable by the interrogating beam of light;   b. a composition on or in the optical disk, card or media disposed so that when the optical disk, card or media is used in the optical read-out system, the interrogating beam of light passes through the composition before or after contacting some or all of the data structures, wherein the composition comprises a polymeric matrix with an organometallic complex dissolved therein or with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein and wherein the composition is substantially transparent to the interrogating beam and/or is substantially colorless,   
     wherein the composition in or on the optical disk, after exposure to ambient conditions, is morphologically unstable. 
   
   
       53 . The method of  claim 52  wherein the ambient condition is exposure to the interrogating beam of light. 
   
   
       54 . An optical disk, card or media for use in an optical read-out system that comprises a light source operative to produce an interrogating beam of light for reading data structures, wherein the optical disk, card or media comprises:
 a. a plurality of data structures that are readable by the interrogating beam of light;   b. a composition on or in the optical disk, card or media disposed so that when the optical disk, card or media is used in the optical read-out system, the interrogating beam of light passes through the composition before or after contacting some or all of the data structures, wherein the composition comprises a polymeric matrix with an organometallic complex dissolved therein or with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein and wherein the composition is substantially transparent to the interrogating beam and/or is substantially colorless,   
     wherein, after exposure to ambient conditions, the organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles form aggregates that exhibit increased particulate size such that they act as light-scattering sites and/or change color, reflectivity or amount of transparency of the composition to the interrogating beam for reading data structures. 
   
   
       55 . A method for coating an internal or external surface of a device for use in an optical read-out system with a layer that is substantially transparent to visible light wherein the layer undergoes a reduction in said transparency when exposed to an ambient condition, said method comprising the steps of:
 a. dispensing onto the surface a film of a solution comprising at least one monomer or at least one oligomer, wherein the solution additionally comprises an organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles dissolved therein or uniformly dispersed therein; and   b. polymerizing the monomer(s) or oligomer(s) to form a polymeric coating, wherein the coating is disposed so that an interrogating beam of light passes through the coating before or after contacting some or all of the information carrying layer,   
     wherein the organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles in the solution dispensed onto the surface, after exposure to ambient conditions, form aggregates that exhibit increased particulate size such that they act as light-scattering sites and/or change color, reflectivity or amount of transparency of the composition to the interrogating beam for reading data structures. 
   
   
       56 . A method for coating an internal or external surface of an information carrying layer of a device for use in an optical read-out system with a layer that is substantially transparent to visible light wherein the layer undergoes a reduction in said transparency when exposed to an ambient condition, said method comprising the steps of:
 a. dispensing onto the surface a film of a solution of at least one polymer, wherein the solution additionally comprises an organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles dissolved therein or uniformly dispersed therein; and   b. removing the solvent from the solution to form the coating, wherein the coating is   
     disposed so that an interrogating beam of light passes through the coating before or after contacting some or all of the information carrying layer, 
     wherein the organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles in the solution dispensed on the surface, after exposure to ambient conditions, form aggregates that exhibit increased particulate size such that they act as light-scattering sites and/or change color, reflectivity or amount of transparency of the composition to the interrogating beam for reading data structures. 
   
   
       57 . A method of limiting access to data stored on an optical disk, card, media, said optical disk, card or media being used in an optical read-out system that comprises a light source operative to produce an interrogating beam of light for reading data structures, said method comprising the step of exposing the optical disk, card or media to an ambient condition, wherein the optical disk, card or media comprises:
 a. a plurality of data structures that are readable by the interrogating beam of light;   b. a composition on or in the optical disk, card or media disposed so that when the optical disk, card or media is used in the optical read-out system, the interrogating beam of light passes through the composition before or after contacting some or all of the data structures, wherein the composition comprises a polymeric matrix with an organometallic complex dissolved therein or with metal, transition metal, metal oxide or transition metal oxide nanoparticles uniformly dispersed therein and wherein the composition is substantially transparent to the interrogating beam and/or is substantially colorless,   
     wherein the organometallic complex, metal, transition metal, metal oxide or transition metal oxide nanoparticles in the composition in or on the optical disk, after exposure to ambient conditions, form aggregates that exhibit increased particulate size such that they act as light-scattering sites and/or change color, reflectivity or amount of transparency of the composition to the interrogating beam for reading data structures.