Low gravity enhanced growth of phthalocyanine polymorphs and fil

Details Low gravity enhanced growth of phthalocyanine polymorphs and fil Low gravity enhanced growth of phthalocyanine polymorphs and fil

1990-08-20

1992-08-18

Kunemund, Robert

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156600, 156610, 156DIG62, 156DIG113, C30B 2306, C30B 2954

Patent

active

051395924

ABSTRACT:
A polymorph of a phthalocyanine, designated M-phthalocyanine or M-metal phthalocyanine, has spectroscopic properties different from those of any of known crystalline polymorphs of phthalocyanine, the polymorph having been prepared in an environment of at most 0.1 G. In a further aspect, a process is disclosed for preparing novel organic films comprising a closed chamber physical vapor transport (PVT) in a low gravity environment.
Films of novel polymorphs have a surface roughness factor in the range of greater than 1.000000 and less than 1.0000010, a density of at least 50 percent increase over any polymorph of the same molecules produced in unit gravity, and in which at least 50 weight percent of the molecules of said film have a common uniaxial orientation.

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