Patent · US Expired

Preparation for topical use

US5641509A · kind A · utility

15Cited by

3References

21Claims

0Family size

Assignee

Lancaster Group GmbH · DE

Inventors

Udo Gross · Berlin, DE
Joachim Roding · Wiesbaden, DE
Klaus Stanzl · White Plains, US
Leonhard Zastrow · Monaco, MC

Key dates

Filing date	Apr 30, 1996
Grant date	Jun 24, 1997
Priority date	—
Expiry date	Apr 30, 2016

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB82Y5/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a preparation for topical use, having light protection properties and in a special application form. In the known light protection agents containing the naturally occurring active compound melanin, the problem is inadequate transport of the melanin to its site of action. According to the invention, this problem is solved by a preparation for topical use which is characterised in that it contains melanin, dissolved or dispersed in one or more fluorocarbons, which are present as asymmetric lamellar phospholipid aggregates in an aqueous system together with a phospholipid, with a particle size of the aggregates in the range from 200 to 3000 nm.

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