Biocidal macroemulsions containing polyvinyl alcohol

US4824663A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Wirth · Bensberg, DE
• Heinz J. Niessen · Bensberg, DE
• John Goossens · Cologne, DE
• Hans Schulze · Cologne, DE

Key dates

• Filing date: Mar 7, 1986
• Grant date: Apr 25, 1989
• Expiry date: Mar 7, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/923
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to new macroemulsions which contain PA0 0.001 to 60 percent by weight of at least one active compound from the class comprising the phosphates and/or carbamates, PA0 0 to 50 percent by weight of aromatic diluents, PA0 0.001 to 20 percent by weight of polyvinyl alcohol having a mean molecular weight of between 5,000 and 150,000 and a content of acetate groups of between 2 and 30 mol %, and/or PA0 0.001 to 20 percent by weight of a nonlphenol/propylene oxide/ethylene oxide adduct of the formula ##STR1## in which X represents integers from 10 to 50 and PA1 Y represents integers from 15 to 65, PA0 and/or PA0 0.001 to 20 percent by weight of ethylene oxide/propylene oxide/ethylene oxide block copolymers having a mean molecular weight of between 2,000 and 8,000 and HLB values of between 8 and 30, PA0 and water and, if appropriate, additives, and PA0 in which the oil phase is dispersed in the aqueous phase in the form of droplets having a mean particle diameter of 0.1 to 3.0 .mu.m.