Patent ID: 7998494
Filing Date: 2011-08-16
Classification: A23L,A61K,A61Q,B01J,C11D

Abstract:
1. A method for preparing a dry powder of perfuming or flavoring microcapsules having a reduced combustion potential which comprises: selecting a fireproofing agent that can reduce the combustion potential of the microcapsules but which would not deleteriously affect the perfuming or flavoring properties of the perfuming or flavoring ingredients or of products to which the microcapsules are incorporated; preparing an aqueous emulsion of a volatile, liquid perfuming or flavoring ingredient and a polymeric material; adding the selected fireproofing agent to the aqueous emulsion; and spray-drying the resulting emulsion to form a dry powder of perfuming or flavoring microcapsules; wherein the fireproofing agent is provided in an amount sufficient to impart an St-1 classification to the dry powder of microcapsules to reduce its dust hazard explosive class.