USRE41616EExpiredUtility

Tagging materials for polymers, methods, and articles made thereby

64
Assignee: SABIC INNOVATIVE PLASTICS IPPriority: Jul 11, 2001Filed: Dec 17, 2003Granted: Aug 31, 2010
Est. expiryJul 11, 2021(expired)· nominal 20-yr term from priority
Inventors:Steven HubbardRadislav Alexandrovich PotyrailoPhilippe SchottlandVerghese Thomas
G01N 33/26Y10T428/31507G01N 21/6428Y10T428/3154Y02W30/62Y10T436/13B29B 2017/0279
64
PatentIndex Score
4
Cited by
30
References
72
Claims

Abstract

A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.

Claims

exact text as granted — not AI-modified
1. A method for identifying a polycarbonate polymer, comprising providing in the  a polycarbonate polymer at least one  and a tagging material wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or a combination thereof, wherein the tagging material has a temperature stability of at least about  350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about  100 nanometers and about  1100    546  nanometers, and wherein the tagging material is uniformly dispersed throughout the polycarbonate polymer or dispersed in a portion of the polycarbonate polymer by means of an extruder or injection molder during melt polymerization of the polycarbonate polymer whereby a sample of the polymer composition can be identified or distinguished from samples of other polymers containing no or different tagging materials, and identifying the polymer based on the detected tagging material. 
     
     
       2. The method in accordance with  claim 1 , wherein the tagging material has a temperature stability of at least about  375° C. 
     
     
       3. The method in accordance with  claim 1 , wherein the tagging material has a temperature stability of at least about  400° C. 
     
     
       4. The method in accordance with  claim 1 , wherein the tagging material has an excitation wavelength in a range between about  200 nanometers and about 1000  546 nanometers. 
     
     
       5. The method in accordance with  claim 4 , wherein the tagging material has an excitation wavelength in a range between about  250 nanometers and about 950  546 nanometers. 
     
     
       6. The method in accordance with  claim 1 , wherein the at least one  tagging material comprises a fluorophore dye comprises  comprising perylenes. 
     
     
       7. The method in accordance with  claim 6 , wherein the at least one  fluorophore dye comprises anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis[2,6-bis(1-methylethyl)phenyl]-5,6,12,13-tetraphenoxy, or combinations thereof  anthra[ 2 , 1 , 9 - def: 6 , 5 , 10   - d′,e′f′]diisoquinoline -   1 , 3 , 8 , 10   (   2 H, 9 H )- tetrone,  2 , 9   - bis[ 2 , 6   - bis (   1   - methylethyl ) phenyl ]-   5 , 6 , 12 , 13   - tetraphenoxy.    
     
     
       8. The method in accordance with  claim 1 , wherein at least one  the tagging material comprises fluorophore dye comprises  comprising a lanthanide complex. 
     
     
       9. The method in accordance with  claim 1 , wherein the fluorophore is an anti-stokes shift dye. 
     
     
       10. The method in accordance with  claim 1 , wherein at least one  the tagging material comprises semi-conducting luminescent nanoparticle comprises  comprising CdS, ZnS, Cd 3 P 2 , PbS, or combinations thereof. 
     
     
       11. The method in accordance with  claim 1 , wherein at least one  the tagging material comprises a semi-conducting luminescent nanoparticle comprises rare earth aluminates  comprising strontium aluminates doped with Europium and Dysprosium. 
     
     
       12. The method in accordance with  claim 1 , wherein the tagging material is present in a range between about 10 −18  and about 2 percent by weight of the total polymer. 
     
     
       13. The method in accordance with  claim 12 , wherein the tagging material is present in a range between about 10 −15  and about 0.5 percent by weight of the total polymer. 
     
     
       14. The method in accordance with  claim 13 , wherein the tagging material is present in a range between about 10 −12  and about 0.05 percent by weight of the total polymer. 
     
     
       15. The method of  claim 1 , wherein the polymer comprises a thermoplastic polymer material. 
     
     
       16. The method of  claim 15 , wherein the thermoplastic polymer material comprises polycarbonate. 
     
     
       17. The method of  claim 1 , wherein the tagging material is incorporated into the polymer by coating, admixing, blending, or copolymerization. 
     
     
       18. The method of  claim 1 , wherein the polymer is used in a storage media for data. 
     
     
       19. The method of  claim 1 , wherein the polymer contains a coloring material. 
     
     
       20. The method in accordance with  claim 1 , wherein the tagging material has a temperature stability for a time period of less than about 10 minutes. 
     
     
       21. The method in accordance with  claim 1 , wherein the tagging material has a temperature stability for a time period of less than about 1 minute. 
     
     
       22. The method in accordance with  claim 1 , wherein the tagging material has a temperature stability for a time period of less than about 20 seconds. 
     
     
       23. A method for identifying a polycarbonate, comprising providing in the polycarbonate at least one tagging material wherein the tagging material comprises a perylene, wherein the perylene has a temperature stability of at least about 350° C., is present in a range between about 10 −18  percent by weight and about 2 percent by weight of the total polycarbonate and is detectable via a spectrofluorometer at an excitation wavelength in a range between about  100 nanometers and about 1100  546 nanometers. 
     
     
       24. A polymer composition comprising
 ( a )  a polycarbonate polymer, and    
 ( b ) a tagging material wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic or organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about  350° C. and is present in a sufficient quantity such that the tagging material is detectable via a spectrofluorometer at an excitation wavelength in a range between about  100 nanometers and about 1100  546 nanometers, wherein the tagging material is uniformly dispersed throughout the polycarbonate polymer or dispersed on a portion of the polycarbonate polymer by means of an extruder or injection molding during melt polymerization of the polycarbonate polymer, whereby a sample of the polymer composition can be identified or distinguished from samples of other polymers containing no or different tagging materials.  
 
     
     
       25. The polymer composition in accordance with  claim 24 , wherein the tagging material has a temperature stability of at least about  375° C. 
     
     
       26. The polymer composition in accordance with  claim 24 , wherein the tagging material has a temperature stability of at least about  400° C. 
     
     
       27. The polymer composition in accordance with  claim 24 , wherein the at least one  composition comprises a fluorophore dye has  having an excitation wavelength in a range between about  200 nanometers and about 1000  546 nanometers. 
     
     
       28. The polymer composition in accordance with  claim 27 , wherein the at least one  fluorophore dye has an excitation wavelength in a range between about  250 nanometers and about 950  546 nanometers. 
     
     
       29. The polymer composition in accordance with  claim 24 , wherein the at least one  composition a perylene as a fluorophore dye comprises perylenes . 
     
     
       30. The polymer composition in accordance with  claim 29 , wherein the at least one fluorophore dye comprises anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis[2,6-bis(1-methylethyl)phenyl]-5,6,12,13-tetraphenoxy, or combinations thereof
 anthra[ 2 , 1 , 9 - def: 6 , 5 , 10   - d′e′f′]diisoquinoline -   1 , 3 , 8 , 10   (   2 H, 9 H )- tetrone,    
     2 , 9   - bis[ 2 , 6   - bis (   1   - methylethyl ) phenyl ]-   5 , 6 , 12 , 13   - tetraphenoxy.    
 
     
     
       31. The polymer composition in accordance with  claim 24 , wherein the at least one fluorophore dye  composition comprises a lanthanide complex. 
     
     
       32. The polymer in accordance with  claim 24 , wherein the fluorophore comprises an anti-stokes shift dye. 
     
     
       33. The polymer composition in accordance with  claim 24 , wherein the at least one  composition comprises a semi-conducting luminescent nanoparticles comprises  comprising CdS, ZnS, Cd 3 P 2 , PbS, or combinations thereof. 
     
     
       34. The polymer composition in accordance with  claim 24 , wherein the at least one  composition comprises a semi-conducting luminescent nanoparticles comprises  comprising rare earth aluminates comprising strontium aluminates doped with Europium and Dysprosium. 
     
     
       35. The polymer composition in accordance with  claim 24 , wherein the tagging material is present in a range between about 10 −18  percent by weight and 2 percent by weight of the total polymer. 
     
     
       36. The polymer composition in accordance with  claim 35 , wherein the tagging material is present in a range between about 10 −15  percent by weight and about 0.5 percent by weight of total polymer. 
     
     
       37. The polymer composition in accordance with  claim 36 , wherein the tagging material is present in a range between about 10 −12  percent by weight and about 0.05 percent by weight of total polymer. 
     
     
       38. The polymer in accordance with  claim 24 , wherein the polymer comprises a thermoplastic polymer material. 
     
     
       39. The polymer in accordance with  claim 38 , wherein the thermoplastic polymer material comprises polycarbonate. 
     
     
       40. The polymer in accordance with  claim 24 , wherein the tagging material is incorporated into the polymer by coating, admixing, blending, or copolymerization. 
     
     
       41. The polymer composition in accordance with  claim 24 , wherein the polymer is used in a storage media for data. 
     
     
       42. The polymer composition in accordance with  claim 24  comprising a coloring material. 
     
     
       43. The polymer composition in accordance with  claim 24 , wherein the tagging material has a temperature stability for a time period of less than about 10 minutes. 
     
     
       44. The polymer composition in accordance with  claim 24 , wherein the tagging material has a temperature stability for a time period of less than about 1 minute. 
     
     
       45. The polymer composition in accordance with  claim 24 , wherein the tagging material has a temperature stability for a time period of less than about 20 seconds. 
     
     
       46. A polycarbonate comprising a perylene, wherein the perylene has a temperature stability of at least about 350° C. and is present in a range between about 10 −18  percent by weight and about 2 percent by weight of the total polycarbonate and is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. 
     
     
       47. An article comprising a polymer composition wherein the polymer composition comprises
 (a) a polycarbonate polymer, and  
 (b) a at least one  tagging material wherein the tagging material comprises at least one organic fluorophore dye, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about  100 nanometers and about 1100  546 nanometers, wherein the tagging material is uniformly dispersed throughout the polycarbonate polymer or dispersed on a portion of the polycarbonate polymer by means of an extruder or injection molder during melt polymerization of the polycarbonate polymer, whereby a sample of the polymer composition can be identified or distinguished from samples of other polymers containing no or different tagging materials.  
 
     
     
       48. The method in accordance with  claim 47 , wherein the tagging material has a temperature stability of at least about 375° C. 
     
     
       49. The method in accordance with  claim 47 , wherein the tagging material has a temperature stability of at least about 400° C. 
     
     
       50. The article in accordance with  claim 47 , wherein the at least one fluorophore dye has an excitation wavelength in a range between about  200 nanometers and about  1000    546  nanometers. 
     
     
       51. The article in accordance with  claim 50 , wherein the at least one fluorophore dye has an excitation wavelength in a range between about  250 nanometers and about  950    546  nanometers. 
     
     
       52. The article in accordance with  claim 47 , wherein the at least one fluorophore dye comprises perylenes. 
     
     
       53. The article in accordance with  claim 52 , wherein the at least one fluorophore dye comprises anthra[ 2 , 1 , 9 -def: 6 , 5 , 10 -d′e′f′]diisoquinoline- 1 , 3 , 8 , 10 ( 2 H, 9 H)-tetrone,  2 , 9 -bis[ 2 , 6 -bis( 1 -methylethyl)phenyl]- 5 , 6 , 12 , 13 -tetraphenoxy, or combinations thereof
 antrha[ 2 , 1 , 9 -def: 6 , 5 , 10 -d′e′f′]diisoquinoline- 1 , 3 , 8 , 10 ( 2 H, 9 H)-tetrone,  
     2 , 9 -bis[ 2 , 6 -bis( 1 -methylethyl)phenyl]- 5 , 6 , 12 , 13 -tetraphenoxy.    
 
     
     
       54. The article in accordance with  claim 47 , wherein at least one fluorophore dye comprises a lanthanide complex. 
     
     
       55. The article in accordance with  claim 47 , wherein the fluorophore is an anti-stokes shift dye. 
     
     
       56. The article in accordance with  claim 47 , wherein at least one semi-conducting luminescent nanoparticle comprises CdS, ZnS, Cd 3 P 2 , PbS, or combinations thereof. 
     
     
       57. The article in accordance with  claim 47 , wherein at least one semi-conducting luminescent nanoparticle comprises rare earth aluminates comprising strontium aluminates doped with Europium and Dysprosium. 
     
     
       58. The article in accordance with  claim 47 , wherein the tagging material is present in a range between about 10 −18  to about 2 percent by weight of the total polymer. 
     
     
       59. The article in accordance with  claim 58 , wherein the tagging material is present in a range between about 10 −15  to about 0.5 percent by weight of total polymer. 
     
     
       60. The article in accordance with  claim 59 , wherein the tagging material is present in a range between about 10 −12  to about 0.05 percent by weight of total polymer. 
     
     
       61. The article in accordance with  claim 47 , wherein the polymer comprises a thermoplastic polymer material. 
     
     
       62. The article in accordance with  claim 61 , wherein the thermoplastic polymer material comprises polycarbonate. 
     
     
       63. The article in accordance with  claim 47 , where in the tagging material is incorporated in to the polymer by coating, admixing, blending, or copolymerization. 
     
     
       64. The article in accordance with  claim 47 , wherein the polymer is used in a storage media for data. 
     
     
       65. The article in accordance with  claim 47 , wherein the polymer contains a coloring material. 
     
     
       66. The article in accordance with  claim 47 , wherein the tagging material has a temperature stability for a time period of less than about 10 minutes. 
     
     
       67. The article in accordance with  claim 47 , wherein the tagging material has a temperature stability for a time period of less than about 1 minute. 
     
     
       68. The article in accordance with  claim 47 , wherein the tagging material has a temperature stability for a time period of less than about 20 seconds. 
     
     
       69. A storage medium for data comprising a polycarbonate wherein the polycarbonate comprises a perylene wherein the perylene has a temperature stability of at least about 350° C., is present in a range between about 10 −18  percent by weight and about 2 percent by weight of the total polycarbonate, and is detectabile via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. 
     
     
       70. The method of  claim 1 , wherein the tagging material comprises a scintillation dye.  
     
     
       71. The polymer composition of  claim 24 , wherein the tagging material comprises a scintillation dye.  
     
     
       72. The article of  claim 47 , wherein the tagging material comprises a scintillation dye.

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