Claims
- 1. Method for the manufacture of an electronic card comprising a micromodule inserted into a card body having a polymerized plastic layer, wherein said polymerized plastic layer of said card body is formed through the steps comprising:
- applying a polymerizable monomer-containing mixture comprising a liquid monomer with a viscosity within the range of 100 to 1000 mPa.s onto a card body substrate; and
- polymerizing said monomer by means of a polymerization initiator.
- 2. Method according to claim 1 wherein, the viscosity of the polymerizable monomer-containing mixture comprising the monomer is less than approximately 500 mPa.s.
- 3. Method according to claim 1 wherein,
- the polymerization of the monomer is accelerated by adding an accelerator so as to increase the rate of polymerization.
- 4. Method according to claim 1 wherein,
- a simple intercalary compound comprising a monomer that is compatible with said liquid monomer, and bears an R radical, wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility treater than that which would be obtained when the monomer alone is combined with said liquid monomer.
- 5. Method according to claim 1 wherein,
- an elastomer intercalary compound comprising a difunctional polymer, said difunctional polymer having the property of being intercalated in and between two adjacent polymer chains with a view to the reticulation of the polymerized layer, is added to the polymerizable monomer-containing mixture.
- 6. Method according to claim 1 wherein, a polymer combinable with the monomer is added to the polymerizable monomer-containing mixture.
- 7. Method according to claim 6 wherein,
- the polymer/(monomer+polymer) ratio is at least 2/100.
- 8. Method according to claim 6 wherein,
- the polymer/(polymer+monomer) ratio is within the range of 2/100 to 20/100.
- 9. Method according to claim 3 wherein, the polymerizable monomer-containing mixture is made out of two separate solutions, a first solution comprising the initiator, a second solution comprising the accelerator.
- 10. Method according to claim 9 wherein,
- the polymerizable monomer-containing mixture is injected into a cavity of a mold.
- 11. Method according to claim 1 wherein,
- the polymerizable monomer-containing mixture is dispensed under reduced pressure into an open cavity of a mold.
- 12. Method according to claim 1 wherein,
- the card body substrate is laminated with the polymerizable monomer-containing mixture.
- 13. Method according to claim 1 wherein, the electronic card is a contactless electronic card comprising an antenna in contact with the polymerized plastic layer.
- 14. Method according to claim 1 wherein at least one of, an acrylic and methacrylic monomer is used as the monomer.
- 15. Method according to claim 14, characterized in that the acrylic or methacrylic monomer is selected from the group consisting of:
- methyl methacrylate;
- ethyl triglycol methacrylate;
- 2-hydroxyethyl methacrylate;
- ester of methacrylic acid;
- isobornyl methacrylate;
- isobornyl acrylate;
- dioxyethyl cyclopentenyl methacrylate;
- tetrahydrofurfuryl methacrylate;
- n-butyl methacrylate;
- benzyl methacrylate;
- 2-(dimethyl amino ethyl) methacrylate;
- 1,4-Butanediol, dimethacrylate;
- diethyleneglycol, dimethacrylate;
- diurethane dimethacrylate;
- 1,12-dodecandiol, dimethacrylate; and
- trimethylol propane dimethyacrylate.
- 16. Method according to claim 15 wherein the initiator is a peroxide and further comprising an amine accelerator.
- 17. An electronic card comprising a micromodule inserted into a card body, a layer of said card body being a polymerized plastic layer, wherein said polymerized plastic layer is formed of a composition comprising:
- a polymer that is a homopolymer or heteropolymer of a monomer, said monomer having a viscosity within the range of approximately 100 to 1000 mPa.s; and
- a decomposition product of an initiation of the polymerization of the polymer.
- 18. A card according to claim 17, the composition further comprises an accelerator.
- 19. A card according to claim 17 wherein, the composition further comprises a simple intercalary compound, said simple intercalary compound comprising a monomer including an R radical, wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility greater than that which would be obtained with the polymer alone.
- 20. A card according to claim 17 wherein, the composition further comprises an elastomer intercalary compound, said elastomer intercalary compound comprising a difunctional polymer, said difunctional polymer having the property of being intercalated in and between two adjacent polymer chains with a view to the reticulation of the polymerized layer.
- 21. A card according to claim 17 wherein the monomer is one of a methacrylic monomer and a acrylic monomer.
- 22. A card according to claim 21 wherein the monomer, is selected from the group consisting of:
- methyl methacrylate;
- ethyl triglycol methacrylate;
- 2-hydroxyethyl methacrylate;
- ester of methacrylic acid;
- isobornyl methacrylate;
- isobornyl acrylate;
- dioxyethyl cyclopentenyl methacrylate;
- tetrahydrofurfuryl methacrylate;
- n-butyl methacrylate;
- benzyl methacrylate;
- 2-(dimethyl amino ethyl) methacrylate;
- 1,4-Butanediol, dimethacrylate;
- diethyleneglycol, dimethacrylate;
- diurethane dimethacrylate;
- 1,12-dodecandiol, dimethacrylate; and
- trimethylol propane dimethyacrylate.
- 23. A card according to claim 17 wherein, the viscosity of the polymer is less than approximately 500 mPa.s.
- 24. A card according to claim 17 wherein said card is contactless.
- 25. A method of manufacturing an electronic card having a polymerized plastic layer comprising the steps of:
- (A) inserting a micromodule into a cavity in a card body substrate; and
- (B) forming a polymerized plastic layer around said micromodule through the steps comprising:
- (1) filling said cavity with a polymerizable monomer-containing mixture comprising:
- (a) a monomer with a viscosity within the range of 100 to 1000 mPa.s; and,
- (b) an additive for adjusting the rate of polymerization selected from the group comprising:
- (i) an initiator;
- (ii) a simple intercalary compound bearing an R radical wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility greater than that which would be obtained with the monomer alone; and
- (iii) an elastomer intercalary compound; and
- (2) polymerizing said polymerizable monomer-containing mixture to form said layer.
- 26. A method according to claim 25 wherein said mixture has a viscosity less than approximately 500 mPa.s.
- 27. A method according to 25 further comprising exposing the polymerizable monomer-containing mixture to an accelerator to increase the rate of polymerization.
- 28. A method according to claim 25 wherein the initiator is radiation.
- 29. A method according to claim 27 wherein the polymerizable monomer-containing mixture further comprises a polymer that can be mixed with said monomer.
- 30. A method according to claim 29 wherein the ratio of polymer/(monomer+polymer) is at least 2/100.
- 31. A method according to claim 29 wherein the ratio of polymer/(monomer+polymer) is within the range of 2/100 to 20/100.
- 32. A method according to claim 29 wherein the polymerizable monomer-containing mixture is injected into the cavity.
- 33. A method according to claim 25 wherein the polymerizable monomer-containing mixture is spread into the cavity.
- 34. A method according to claim 25 wherein the monomer is an acrylic monomer or a methacrylic monomer.
- 35. A method according to claim 25 wherein the monomer is selected from the group consisting of:
- methyl methacrylate;
- ethyl triglycol methacrylate;
- 2-hydroxyethyl methacrylate;
- ester of methacrylic acid;
- isobornyl methacrylate;
- isobornyl acrylate;
- dioxyethyl cyclopentenyl methacrylate;
- tetrahydrofurfuryl methacrylate;
- n-butyl methacrylate;
- benzyl methacrylate;
- 2-(dimethyl amino ethyl) methacrylate;
- 1,4-Butanediol, dimethacrylate;
- diethyleneglycol, dimethacrylate;
- diurethane dimethacrylate;
- 1,12-dodecandiol, dimethacrylate; and
- trimethylol propane dimethyacrylate.
- 36. A method according to claim 25 further comprising contacting an antenna with the polymerized plastic layer.
- 37. A method according to claim 27 wherein said initiator is peroxide and said accelerator is an amine.
- 38. An electronic card comprising;
- (a) a card body having a cavity;
- (b) a micromodule inserted into said cavity; and,
- (c) a polymerized plastic layer formed through the steps comprising;
- (1) filling said cavity with a mixture comprising:
- (a) a monomer with a viscosity within the range of 100 to 1000 mPa.s; and,
- (b) an additive for adjusting the rate of polymerization selected from the group comprising:
- (i) an initiator;
- (ii) a simple intercalary compound bearing an R radical wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility greater than that which would be obtained with the monomer alone; and
- (iii) an elastomer intercalary compound;
- (2) polymerizing said mixture to form said layer surrounding said micromodule.
- 39. A card according to claim 38 wherein said polymerizable monomer-containing mixture has a viscosity less than approximately 500 mPa.s.
- 40. A card according to 38 further comprising exposing the polymerizable monomer-containing mixture to an accelerator to increase the rate of polymerization.
- 41. A card according to claim 40 wherein the accelerator is radiation.
- 42. A card according to claim 38 wherein the polymerizable monomer-containing mixture further comprises a polymer that can be mixed with said monomer.
- 43. A card according to claim 42 wherein the ratio of polymer/(monomer+polymer) is at least 2/100.
- 44. A card according to claim 42 wherein the ratio of polymer/(monomer+polymer) is within the range of 2/100 to 20/100.
- 45. A card according to claim 42 wherein the polymerizable monomer-containing mixture is injected into the cavity.
- 46. A card according to claim 42 wherein the polymerizable monomer-containing mixture is spread into the cavity.
- 47. A card according to claim 38 wherein the monomer is an acrylic monomer or a methacrylic monomer.
- 48. A card according to claim 38 wherein the monomer is selected from the group consisting of:
- methyl methacrylate;
- ethyl triglycol methacrylate;
- 2-hydroxyethyl methacrylate;
- ester of methacrylic acid;
- isobornyl methacrylate;
- isobornyl acrylate;
- dioxyethyl cyclopentenyl methacrylate;
- tetrahydrofurfuryl methacrylate;
- n-butyl methacrylate;
- benzyl methacrylate;
- 2-(dimethyl amino ethyl) methacrylate;
- 1,4-Butanediol dimethacrylate;
- diethyleneglycol, dimethacrylate;
- diurethane dimethacrylate;
- 1,12-dodecandiol, dimethacrylate; and
- trimethylol propane dimethyacrylate.
- 49. A card according to claim 38 further comprising contacting an antenna with the polymerized plastic layer.
- 50. A card according to claim 40 wherein said initiator is peroxide and said accelerator is an amine.
- 51. An electronic card comprising:
- (a) a card body having a cavity;
- (b) a micromodule inserted into said cavity; and,
- (c) a polymerized plastic layer surrounding said micromodule, formed through the polymerization of a mixture comprising:
- (1) a monomer with a viscosity within the range of approximately 100 to 1000 mPa.s; and
- (2) an additive for the adjustment of the rate of polymerization selected from the group comprising:
- (a) an initiator;
- (b) a simple intercalary compound bearing an R radical wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility greater than that which would be obtained with the monomer alone;
- (c) an elastomer intercalary compound; and,
- (d) a polymer, wherein the ratio of polymer/(polymer+monomer) is at least 2/100.
- 52. The electronic card of claim 51 wherein said ratio of polymer: monomer is at least approximately 2/100.
- 53. The electronic card of claim 52 wherein the ratio of polymer: monomer is within the range of approximately 2/100 to 20/100.
- 54. A method of manufacturing an electronic card comprising the steps of:
- (1) providing a card body having a cavity;
- (2) inserting a micromodule into the cavity in said card body;
- (3) filling the cavity in said card body with a mixture comprising:
- (A) a polymerizable monomer having a viscosity of 100-1000 mPa.s; and
- (B) an additive for the adjustment of the rate of polymerization selected from the group consisting of:
- (1) an initiator;
- (2) a simple intercalary compound bearing an R radical wherein said R radical is designed to move adjacent polymer chains away to a distance sufficient to give the polymerized layer a degree of elasticity and flexibility greater than that which would be obtained with the greater than that which would be obtained with the monomer alone;
- (3) an elastomer intercalary compound; and,
- (4) a polymer, wherein the ratio of polymer/(polymer+monomer) is at least 2/100; and
- (5) polymerizing said mixture.
- 55. The method of claim 54 wherein the polymer:monomer ratio is at least approximately 2/100.
- 56. The method of claim 54 wherein the polymer:monomer ratio is within the range of approximately 2/100-20/100.
Priority Claims (1)
Number |
Date |
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95 01733 |
Feb 1995 |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation of U.S. Ser. No. 08/894,265, filed Nov. 13, 1997, which is a national phase application filed under 35 U.S.C. 371 of PTC application No. PCT/FR96/00253, filed Feb. 15, 1996.
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Continuations (1)
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894265 |
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