Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Including surface treatment of porous body
Reexamination Certificate
2006-05-02
2006-05-02
Lechert, Jr., Stephen J. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Including surface treatment of porous body
C264S041000, C264S109000, C264S122000, C264S129000
Reexamination Certificate
active
07037454
ABSTRACT:
The present invention uses natural materials to manufacture disposable containers, so that the present invention has no problem of environment hormone and the like as well as does no harm to human bodies unlike polystyrene-based disposable containers. Further, the present invention foams natural materials to fabricate disposable containers, so as to solve the weakness of conventional natural material-based disposable containers, that is, the problems of fragility or deformation and weight, to thereby provide economic and environment-friendly disposable containers which are light-weighted but less damaged or deformed.
REFERENCES:
patent: 5591491 (1997-01-01), Ando et al.
Choi Young
Kim Young-sik
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