Plastic substrate having multi-layer structure and method...

Details Plastic substrate having multi-layer structure and method... Plastic substrate having multi-layer structure and method...

2008-07-01

2008-07-01

Nakarani, D. S. (Department: 1794)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S336000, C428S451000

Reexamination Certificate

active

07393581

ABSTRACT:
The present invention relates to a plastic substrate having a multi-layer structure and a method for preparing the same. The plastic substrate of the present invention comprises plastic films attached to each other, and a first buffering layer of an organic-inorganic hybrid, a layer of gas barrier, and a second buffering layer of an organic-inorganic hybrid which are stacked on both sides of the plastic films in an orderly manner, each layer forming a symmetrical arrangement centering around the plastic films.Because the plastic substrate of the present invention has a small coefficient of thermal expansion, excellent dimensional stability, and superior gas barrier properties, it can replace the brittle and heavy glass substrate in display devices. Also, it can be used for a variety of packaging or container materials in applications requiring superior gas barrier properties.

REFERENCES:
patent: 5736207 (1998-04-01), Walther et al.
patent: 6322860 (2001-11-01), Stein et al.
patent: 6465953 (2002-10-01), Duggal
patent: 6503634 (2003-01-01), Utz et al.
patent: 10-1999-0045093 (1999-06-01), None

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