Compositions and methods for differential release of 1-methylcyclopropene
AssigneeVerdant Technologies, LLC
InventorsWillard E. Wood, Joseph Frank Sarageno, JR., Joseph S. Keute, Amanda Lundgren
Life of this patent
Estimating the term…
Abstract
A clathrate of 1-methylcyclopropene with α-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.
Claims25
A curable composition comprising a mixture of:
- one or more radiation polymerizable monomers,
- optionally a prepolymer, and
- a particulate consisting of a 1-methylcyclopropene clathrate of α-cyclodextrin, and optionally α-cyclodextrin, the particulate having a mean particle size between 1 μm and 20 μm.
A method of making a treated packaging material, the method comprising
- a. combining one or more radiation polymerizable monomers with a particulate consisting of a 1-methylcyclopropene clathrate of α-cyclodextrin, and optionally α-cyclodextrin to form a first polymerizable mixture, wherein the particulate has a mean particle size between 1 μm and 20 μm;
- b. prepolymerizing the first polymerizable mixture to form a prepolymerized mixture, the prepolymerized mixture having a viscosity of 10 cP to 2000 cP;
- c. adding one or more additional monomers and optionally a crosslinker to the prepolymerized mixture to form a second polymerizable mixture;
- d. coating the second polymerizable mixture onto at least a portion of one surface of a packaging material;
- and
- e. exposing the coating to a source of radiation to form a treated packaging material.
Dependencies are inferred from the claim text.