METHOD OF FABRICATING AN INSERT INCLUDING AN RFID DEVICE

• US 20100193591A1
• Filed: 08/01/2008
• Published: 08/05/2010
• Est. Priority Date: 08/03/2007
• Status: Abandoned Application

• Current Assignee: Arjowiggins Sas (UFK Management Holding GmbH)
• Original Assignee: Arjowiggins Sas (UFK Management Holding GmbH)
• Inventors: Rancien, Sandrine, Marlin, Pascal
• Application Number:
  US12/671,089
• Publication Number:
  US 20100193591A1
• Time in Patent Office: Days
• US Class Current: 235/488
• CPC Class Codes: C08G 18/703 Isocyanates or isothiocyanates transformed in a latent form by physical means
• CPC Class Codes: C09J 175/04 Polyurethanes
• CPC Class Codes: G06K 19/07722 the record carrier being multilayered, e.g. laminated sheets flat articles in general, see B32B37/00
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

The present invention relates to a method of fabricating an insert comprising at least a first flexible support, a second flexible support assembled with the first, and an RFID device that is situated at least in part between the two supports, the method comprising the steps consisting in depositing at least one adhesive on a face of at least one of the supports, the other support carrying at least one active substance, and assembling the two supports together, the active substance being capable of causing or accelerating a reaction process with the adhesive.

Claims

1-34. -34. (canceled)

35. A method of fabricating an insert comprising at least a first flexible support, a second flexible support assembled with the first, and an RFID device that is situated at least in part between the two supports, the method comprising:

depositing at least one adhesive on a face of at least one of the supports, the other support carrying at least one active substance; and

assembling the two supports together, the active substance being capable of causing or accelerating a reaction process with the adhesive.

36. A method according to claim 35, the active substance being capable of causing or accelerating the reaction process as soon as it is put into contact with the adhesive.

37. A method according to claim 35, the active substance requiring an external stimulus in order to trigger or accelerate the reaction process.

38. A method according to claim 37, the external stimulus being a temperature rise.

39. A method according to claim 37, the external stimulus being exposure to UV or EB radiation.

40. A method according to claim 35, the RFID device including at least one chip.

41. A method according to claim 35, the RFID device including an antenna.

42. A method according to claim 41, the antenna being placed and held on the first support, one of the supports carrying an active substance, the other support receiving the adhesive, which adhesive is capable of reacting, in particular of cross-linking, in the presence of the active substance, the active substance being put into contact with the adhesive when the supports are assembled together.

43. A method according to claim 42, the antenna being placed and held on the first support by a thermocompression method or an ultrasound method.

44. A method according to claim 42, the active substance being released by applying heat.

45. A method according to claim 42, the support carrying the active substance being the first support.

46. A method according to claim 42, the first support including a first active substance, the adhesive deposited on the second support including a second active substance.

47. A method according to claim 42, the adhesive comprising a polyol based adhesive mass and an active substance such as a catalyst of amine or amine derivative kind, and the first support carrying another active substance such as a cross-linking agent in the form of deactivated diisocyanate particles.

48. A method according to claim 35, comprising:

depositing a first adhesive on the first support, at least in a region that is to receive the antenna;

placing the antenna at least on said first adhesive, the first adhesive presenting sufficient tackiness to ensure that the antenna wire put into contact therewith remains on the first support;

depositing a second adhesive on the second support, the second adhesive including the active substance, which active substance is capable of causing both the first adhesive and the second adhesive to cross-link; and

assembling together the first and second supports.

49. A method according to claim 46, the first and second adhesives comprising polymers of the same kind.

50. A method according to claim 47, the first and second adhesives being based on polyurethane or acrylic.

51. A method according to claim 49, the active substance being a latent cross-linking agent based on surface-deactivated particles of isocyanate.

52. A method according to claim 35, comprising:

depositing a first adhesive on the first support, at least in a region that is to receive the antenna, the first adhesive comprising an adhesive mass A₁ and an active substance S₁;

depositing a second adhesive on the second support, the second adhesive comprising an adhesive mass A₂ and an active substance S; and

putting the adhesive masses A₁ and A₂ into contact, the active substances S₁ and S₂ cross-linking the adhesive masses A₁ and A₂ in the presence of heat.

53. A method according to claim 52, the first adhesive comprising a urethane acrylate prepolymer in a solvent medium and a cross-linking agent, in a solvent medium.

54. A method according to claim 52, the second adhesive comprising an acrylate copolymer and a cross-linking agent.

55. A method according to claim 35, comprising:

depositing a coating, on the first support, the coating including the active substance;

depositing the adhesive on the second support, said adhesive being capable of polymerizing in contact with the active substance; and

assembling the two supports together in order to put the active substance into contact with the adhesive.

56. A method according to claim 55, the adhesive including a methacrylate polymer and the hardener including a functional group selected from one of the following groups:

amine, anhydric, diacid, polyamide, and diisocyanate.

57. A method according to claim 35, comprising:

fabricating the first and second supports, each with an active substance;

placing the antenna on the first support; and

depositing a hot-melt adhesive on the second support, the active substances of the first and second supports being capable of causing the adhesive to cross-link after exposure to a stimulus.

58. A method according to claim 57, the hot-melt adhesive comprising an epoxy-based adhesive mass.

59. A method according to claim 35, comprising:

depositing, on the first support, a first adhesive mass A₁ having an active substance S₂ added thereto; and

depositing, on the second support, a second adhesive mass A₂ having an active substance S₁ added thereto;

the active substance S₁ being selected to react with the adhesive mass A₁, and

the active substance S₂ being selected to react with the adhesive mass A₂ while the supports are assembled together.

60. A method according to claim 35, comprising:

depositing a first adhesive on the first support, at least in a region that is to receive the antenna, the first adhesive comprising an adhesive mass A₁ and an active substance S₂ capable of cross-linking at least the adhesive mass A₂ at a temperature T₂;

depositing a second adhesive on the second support, the second adhesive comprising an adhesive mass A₂ and an active substance S₁ capable of cross-linking at least the adhesive mass A₁ at a temperature T₁; and

putting the adhesive masses A₁ and A₂ into contact and heating them, by holding the assembly at the respective temperatures T₁ and T₂ so as to cause the active substances S₁ and S₂ to cross-link the adhesive masses A₁ and A₂.

61. A method according to claim 35, the insert being fastened to another element via one face of one of the supports or being fastened to two elements by the opposite faces of the two supports.

62. A method according to claim 61, one of the supports carrying an active substance capable of causing or accelerating a reaction process with an adhesive or glue used for fastening the element brought into contact therewith.

63. A method according to claim 61, the two elements being respectively a cover and a flyleaf of a passport booklet.

64. A method according to claim 61, the two elements being respectively plastic films of an ID card.

65. A method according to claim 35, the active substance being a catalyst.

66. A method according to claim 35, the active substance being a polymerization activator or initiator.

67. A method according to claim 35, the active substance being a hardener or a cross-linking agent.

68. An insert obtained by implementing the method defined in any claim 35.

69. A security document including an insert as defined in claim 68.