Patent · US Expired

Preparation of finely divided, pulverulent carotenoid preparations

US4726955A · kind A · utility

38Cited by

6References

4Claims

0Family size

Assignee

BASF SE

Inventors

Dieter Horn · Heidelberg, DE
Hans-Juergen Quadbeck-Seeger
Peter Schaefer · Bad Dürkheim, DE
Wolfgang Haehnlein · Friedelsheim, DE

Key dates

Filing date	Mar 25, 1987
Grant date	Feb 23, 1988
Priority date	—
Expiry date	Mar 25, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B61/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Finely divided, pulverulent carotenoid preparations in which the carotenoid essentially has a particle size of less than 0.5 micron are prepared by a process in which a carotenoid is dissolved in a volatile, water-miscible, organic solvent at from 50.degree. to 240.degree. C., under atmospheric or superatmospheric pressure, in less than 10 seconds, the carotenoid is precipitated in colloidal disperse form from the resulting molecular disperse solution by rapid mixing with milk at from 0.degree. to 50.degree. C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.

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