Multiphase composite and processes for preparing same

Details Multiphase composite and processes for preparing same Multiphase composite and processes for preparing same

1988-06-29

1990-02-27

Ryan, Patrick

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428201, 428220, 4283126, 4283191, 428332, 428333, 428334, 428450, 4284722, 428446, 428688, 428689, 428704, 73 23, 73 27R, B32B 300

Patent

active

049045180

ABSTRACT:
This invention relates to multi-compositional, multiphase composite compositions comprising as phases thereof (i) an electronically conducting or semi-conducting substrate, (ii) an inorganic oxide composition layer in proximity to at least a portion of the surface of said electrically conducting or semi-conducting substrate and (iii) an inorganic crystalline molecular sieve composition layer upon at least a portion of the surface of said inorganic oxide composition layer. The inorganic crystalline molecular sieve composition layer is grown by crystal growth upon at least a portion of the inorganic oxide composition layer surface. The different phases of the composite compositions are substantially contiguous and exhibit a distinct compositional and/or structural heterogeneity of one phase to another. The multi-compositional, multiphase composite compositions have beneficial utility as a moisture sensing element in an electric hydrometer which measures the moisture content of moisture-containing systems by change in electrical impedance. This invention also relates to processes for preparing the multi-compositional, multiphase composite compositions.

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U.S. patent application Ser. No. 058,259, filed Jun. 4, 1987.

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