Oil-in-water emulsions, and their use

US4500348A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Heinz Hausmann · Leichlingen, DE
• Heinz J. Niessen · Bensberg, DE
• Otto Telle · Cologne, DE
• Hermann Neumaier

Key dates

• Filing date: Mar 5, 1982
• Grant date: Feb 19, 1985
• Expiry date: Mar 5, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K47/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Novel oil-in-water emulsions, which contain PA1 (a) 0.1 to 80% by weight of at least one sparingly water-soluble active compound (as herein defined) selected from agrochemical active compounds, active compounds for combating pests in the domestic field and hygiene field and/or pharmacologically active compounds, PA1 (b) 1 to 20% by weight of at least one alkylaryl polyglycol ether of the general formula ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 16 carbon atoms, PA2 R.sup.3 represents a hydrogen atom or a methyl group, PA2 m is 1, 2 or 3, and PA2 n is an integer from 10 to 50, PA1 if appropriate in a mixture with an alkylarylsulphonic acid salt of the general formula ##STR2## wherein R.sup.3 represents an alkyl group having 8 to 35 carbon atoms and PA2 Me.sup..sym. represents an alkali metal cation, an equivalent of an alkaline earth metal cation or a cation of the general formula ##STR3## wherein R', R", R'" and R.sup.IV independently of one another represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a hydroxyalkyl group having 1 to 4 carbon atoms, PA1 (c) water, PA1 (d) if necessary, 1 to 30% by weight of at least one poo…