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Patent No: US7022302 [USA] Application No: 334121
Title: Process for preparing hydrotalcite and brucite type posite charged layers
Issue Date: 04-04-2006 File Date: 31-12-2002
Inventor(s): Oza, Pravinchandra M; Mehta, Satishbhai H; Sheth, Murnalben V; Ghosh, Pushpito K; Gandhi, Mahesh R; Chunawala, Jatin R
IPC Classification: C01F5/00, C01F7/00
Abstract:
An improved process is described for the preparation of surface modified hydrotalcite. The process comprises reacting a precursor of magnesium and aluminium in the presence of suitable alkali carbonate at high temperature. The product has a BET surface area of <=20 m2/gm and average particle size of <=0.5 µm and is useful as halogen scavenger and fire retardant.
Licensing Option: License is already granted. Technology has already been Commercialized. Further license is possible.
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Industrial Applications Applications/Use [Materials] Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Materials Processes [Materials]