Laminate and method for preparing same

Details Laminate and method for preparing same Laminate and method for preparing same

1997-02-06

1998-10-13

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of silicon containing

20419214, 20419215, 427525, 427527, 427529, 427530, 427539, 427579, 428698, 428699, 428701, 428702, B32B 900

Patent

active

058209948

ABSTRACT:
A laminate using a polymeric molded article as a substrate and having a light transparency, gas barrier properties and an excellent alkali resistance. The laminate is obtainable by carrying out a surface treatment to deposit an oxide of at least one metal selected from the metal elements of groups 2, 8, 9, 10 and 11 of the periodic table, and then forming a gas barrier layer such as oxides of silicon, nitrides of silicon and carbides of silicon on the treated surface. The gas barrier layer is not peeled off from the polymeric molded article even after being immersed in an alkali solution of pH 12 or more. The amount of the metal on the treated surface is preferably in the range of 5.times.10.sup.14 atoms/cm.sup.2 to 3.times.10.sup.16 atoms/cm.sup.2 in terms of the metal atoms per unit area. The practical performance of the laminate is not deteriorated during the patterning, by alkali etching, of a transparent conductive layer formed on the laminate.

REFERENCES:
patent: 5589252 (1996-12-01), Matsuo et al.

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