Molded chip card and method for manufacturing same
View Patent ↗The invention relates to a chip card comprising, a molded card body made by means of injection molding and, an integrated circuit chip, as well as to a method for manufacturing such a card. The invention is characterized in that the card body includes polyacrylic acid. The invention applies to SIM cards in particular.
1. A smart card comprising (a) a moulded thermoplastic card body made by injection moulding, and (b) an integrated circuit chip, wherein the card body comprises over 40% polylactic acid by weight of a total of said body.
2. The smart card according to any of claim 1 , wherein the card body further contains copolymer.
3. The smart card according to claim 2 , wherein the card body comprises no more than 60% copolymer by weight.
4. The smart card according to claim 2 , wherein the copolymer is a copolyester.
5. The smart card according to claim 1 , wherein the card body further contains a dye.
6. The smart card according to claim 5 , wherein the dye contains titanium dioxide.
7. The smart card according to claim 1 , wherein fluidity of a material injected for making the card body ranges from 8 and 20 g/10 min MFI.
8. The smart card according to claim 1 , wherein the smart card is a subscriber identification module and wherein the card body is pre-cut to demarcate a detachable mini card.
9. The smart card according to claim 1 , wherein the smart card is biodegradable.
10. A method for manufacturing a smart card, comprising (a) a card body and (b) an integrated circuit chip, comprising:
supplying a mould defining a cavity for the card body;
supplying a material containing polylactic acid;
injecting the material into the mould; and
removing the card body produced from the injection of the material into the mould from the mould.
11. The method according to claim 10 , wherein the injected material contains at least 40% polylactic acid by weight of the total weight of the said material and no more than 60% copolymer by weight of the material.
12. The method according to claim 10 or 11 , wherein a fluidity of the material injected for making the card body ranges from 8 and 20 g/10 min MFI.
13. The method according to claim 10 or 11 , wherein the smart card is a subscriber identification module and wherein the card body is pre-cut to demarcate a detachable mini card.
14. The method according to claim 10 or 11 , wherein that the injection temperature is greater than 150° C. and in that the injection pressure is greater than 1000 bars.
15. The smart card according to claim 3 , wherein the copolymer is a copolyester.
16. The smart card according to claim 2 , wherein the card body further contains a dye.
17. The smart card according to claim 3 , wherein the card body further contains a dye.