Patent · US Active

Active ingredient delivery system

US8828441B2 · kind B2 · utility

0Cited by

13References

4Claims

0Family size

Assignee

FIRMENICH SA · CH

Inventors

Christopher Mark GREGSON · Princeton, US
Matthew SILLICK · Montgomery, US

Key dates

Filing date	Dec 20, 2010
Grant date	Sep 9, 2014
Priority date	—
Expiry date	Dec 20, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/1623
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A spray-chilled particulate delivery system that has a crystalline matrix structure and includes a volatile hydrophobic active ingredient and a carrier material of erythritol, mannitol and mixtures thereof 75% or more of the carrier material, relative to the total weight of the carrier material, is in crystalline form. The system is prepared by a process that includes the steps of forming a melt of the carrier material, incorporating a volatile hydrophobic active ingredient into the melt, forming a melt-mixture comprising an emulsion, dispersion or suspension of the volatile hydrophobic active ingredient in the melt, forming discrete particles of the melt mixture, and cooling the discrete particles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.