Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1995-07-18
2000-08-01
Thibodeau, Paul
Stock material or miscellaneous articles
Composite
Of polyamidoester
283 82, 283107, 360 2, 428195, 428480, 428694, 428910, B42B 1510, B32B 2136
Patent
active
060964316
ABSTRACT:
A biaxially oriented sheet of a biodegradable thermoplastic resin composition containing a lactic acid polymer is used as a structural materials for a supporting substrate of a biodegradable card. The lactic acid polymer has a number average molecular weight of from 10,000 to 1,000,000. The thermoplastic resin composition may preferably be mixed with a modifying biodegradable resin. In another embodiment, the biaxially oriented sheet of the biodegradable thermoplastic resin composition may preferably be covered with the modifying biodegradable resin. The biodegradable lactic acid polymer or the modifying biodegradable resin is also used as a polymeric binder of an information recording layer provided on the surface of the supporting substrate.
REFERENCES:
patent: 4973515 (1990-11-01), Ontanari et al.
patent: 5391423 (1995-02-01), Wnuk et al.
patent: 5403897 (1995-04-01), Ebato et al.
patent: 5444113 (1995-08-01), Sinclair et al.
patent: 5766748 (1998-06-01), Ikado et al.
Derwent Publication Ltd., JP 06 115 242 A, Apr. 26, 1994.
Imai Toshibumi
Matsudaira Nagahisa
Sen Li Han
Taniguchi Masayuki
Tarazano D. Lawrence
Thibodeau Paul
Toppan Printing Co. Ltd.
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