Environmentally biodegradable microcapsules
AssigneeTrucapsol LLC
InventorsPraveen Bachawala, Jiten Odhavji Dihora
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Abstract
Disclosed is a composition including controlled release particles, wherein each of the controlled release particles includes: (a) a core including at least one hydrophobic active ingredient; and (b) a wall at least partially surrounding the core and including the reaction products of: (i) an organofunctional silane; (ii) an epoxy; (iii) an amine; (iv) an isocyanate; (v) an epoxide curing agent; wherein the controlled release particles are effective to retain the at least one hydrophobic active ingredient upon exposure to water and effective to release the at least one hydrophobic active ingredient in response to friction. A method for preparing the composition is also disclosed.
Claims25
A composition comprising a microcapsule formed under basic conditions, the microcapsule comprising:
- (a) a core composition comprising at least one hydrophobic active ingredient and an unreacted amount of an epoxy, an epoxide curing agent, an isocyanate, and an organofunctional silane;
- and
- (b) a wall material surrounding a portion of the core composition, the wall material comprising:
- i. one or more of a first reaction product of a first reactant comprising an amine and a second reactant which is at least one member selected from the group consisting of the epoxy, the epoxide curing agent, the isocyanate, and the organofunctional silane;
- and
- ii. a second reaction product of the first reactant amine with a third reactant comprising a copolymer of maleic anhydride, a fourth reactant comprising a polyfunctional linker and a fifth reactant comprising a carboxy containing polysaccharide or cellulose.
Dependencies are inferred from the claim text.