Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1994-03-08
1997-02-04
Le, Hoa T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428920, B32B 516
Patent
active
055996264
ABSTRACT:
A melamine-coated ammonium polyphosphate exhibiting properties of having no hygroscopicity, being difficultly soluble in water and difficultly susceptive of hydrolysis is provided and further a process for producing a melamine-coated ammonium polyphosphate having the above properties and also being powdery even when it is not ground is provided, the above powdery, melamine-coated ammonium polyphosphate being characterized in that melamine is added and/or adhered onto the particle surface of a powdery, ammonium polyphosphate expressed by the formula ##STR1## wherein n represents an integer of 20 or more, and a process for producing a powdery, melamine-coated ammonium polyphosphate being characterized in that melamine is sublimated and added and/or adhered onto the particle surface of a powdery ammonium polyphosphate.
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Fukumura Chikashi
Inoue Kouji
Iwata Masuo
Narita Noriaki
Takahashi Ryoji
Chisso Corporation
Le Hoa T.
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