Urea composition having reduced compressibility, cake...

Details Urea composition having reduced compressibility, cake... Urea composition having reduced compressibility, cake...

2006-01-16

2010-11-02

Langel, Wayne (Department: 1793)

Compositions

Miscellaneous

C023S29500G, C071S028000, C071S064030, C071S064120, C252S088100, C524S195000, C524S211000

Reexamination Certificate

active

07824565

ABSTRACT:
Colorfast urea composition having reduced compressibility, cake formation and tendency of re-crystallization of the urea granulate, wherein the granulate further contains at least two different biodegradable polymers, of which at least one polymer is preferably a polyalkenyl amine compound. The other polymer is preferably polyaspartic acid or polyvinyl alcohol. The invention further relates to a process for the preparation of such a urea composition.

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patent: 98/30100 (1998-07-01), None
patent: WO 0220471 (2002-03-01), None

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