Oil formulations with thickeners
AssigneeAgrofresh Inc.
InventorsEdward Charles Kostansek, Richard Martin Jacobson
Life of this patent
Estimating the term…
Abstract
This invention is based on unexpected effect of at least one thickener to maintain suspension or dispersion of solid particles in an oil medium. Such effect of thickener enables significant higher weight ratio of solid particles in such suspension composition as compared to previously known compositions. As a consequence, the suspension compositions provided herein enable more active ingredient in the solid particle to be present in a fixed volume or weight of such composition as compared to previously known compositions. One advantage of the suspension composition provided herein can be for aerial spraying of active ingredient such as herbicides, insecticides, or other growth regulating compounds.
Claims10
A composition comprising solid particles of a cyclopropene complex comprising a cyclopropene molecule encapsulated in a molecular encapsulating agent, characterized in that said composition additionally comprises an oil medium, that said solid particles are stably suspended in said oil medium, and that said solid particles have a median size, as measured by the largest dimension, of 50 micrometer or less;
- wherein said oil medium comprises one or more dispersants;
- wherein said molecular encapsulating agent is alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, or a mixture thereof;
- and
- wherein said cyclopropene molecule has a structure of formula
- where each of R1, R2, R3, and R4 is hydrogen or (C1-C4) alkyl.
A process for forming a composition, said process comprising:
- placing materials comprising a cyclopropene complex and an oil into a media mill;
- milling said materials to form solid particles that comprise said cyclopropene complex,
- wherein said solid particles have median size, as measured by the longest length, of 50 micrometer or less;
- and
- stably suspending said solid particles in said oil;
- wherein said oil comprises one or more dispersants;
- wherein said cyclopropene complex comprises a cyclopropene molecule encapsulated in a molecular encapsulating agent;
- wherein said molecular encapsulating agent is alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, or a mixture thereof;
- and
- wherein said cyclopropene molecule has a structure of formula
- where each of R1, R2, R3, and R4 is hydrogen or (C1-C4) alkyl.
Dependencies are inferred from the claim text.