Biocide-encapsulated microcapsule for use in paint
AssigneeNational Chung Shan Institute of Science and Technology
InventorsChing-Wen Fan, Wei-Heng Huang, Mu-Ni Hsu
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Abstract
A biocide-encapsulated microcapsule for use in paint includes a hydrophobic core formed by polymerization of a hydrophobic monomer comprising an unsaturated bond in presence of a free radical initiator; a cross-linking hydrophilic shell adapted to enclose the hydrophobic core and formed by polymerization of a hydrophilic monomer comprising an unsaturated bond and another cross-linking agent; and a biocide being a hydrophobic compound. The hydrophobic core and the cross-linking hydrophilic shell enclose the dispersed biocide. Therefore, the biocide is released from the microcapsule core in the long term such that a resultant dried paint prevents biofouling in the long term.
Claims4
A biocidal microcapsule for use in paint, comprising:
- a hydrophobic core formed by polymerization of styrene and acrylic acid in the presence of a free radical initiator;
- a cross-linking hydrophilic shell adapted to enclose the hydrophobic core;
- and
- a biocide being a hydrophobic compound,
- wherein the hydrophobic core encloses the dispersed biocide to effect storage and release of the biocide, and
- wherein the biocide is 4,5-dichloro-2-n-octyl-3(2H)-isothiazolone (DCOIT),
- wherein the cross-linking hydrophilic shell is formed by polymerization of methyl methacrylate (MMA) and divinylbenzene.
Dependencies are inferred from the claim text.