Biodegradable solutions of biologically active compounds

US6342466B1 · kind B1 · utility

Assignee

• Clariant Finance (BVI) Limited · VG

Inventors

• Mohammad Dookhith · Raleigh, US
• Ralf Zerrer · Karlstein, DE
• Frank Weinelt · Altötting, DE
• Franz-Xaver Scherl · Altötting, DE

Key dates

• Filing date: Sep 2, 1999
• Grant date: Jan 29, 2002
• Expiry date: Sep 2, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N25/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The disclosure pertains to bio-active preparations, as solutions, emulsions, suspensions suspoemulsions, emulsifiable concentrates, and dispersible granules where the biologically active compound is dissolved in a solvent the general formula RCH(OR′)2, ketals of the formula R2C(OR′)2, or orthoesters of the formula RC(OR′)3, wherein the substituents are defined herein. Acetal from monoaldehyde and alcohol have the general formula (I)Acetals used herein also include structures such as: And more complex acetal compounds as disclosed herein.The biologically active compounds in such preparations are active organic compounds, in particular, herbicides and safeners, insecticides, fungicides, acaricides, nematicides, pheromones and repellents. Embodiments included are oil-in-water (O/W) emulsions, emulsifiable concentrates(EC), water dispersible granules (WG) and suspoemulsion (SE). The bio-active/acetal formulations provide enviro-safe treatments as formulated herbicides, safeners, insecticides, fungicides, acaricides, nematicides, pheromones and repellents and exhibit low flammability and biodegradibility.