| 摘要 |
Micro-capsules are prepared by dispersing a composition comprising a hydrophobic acrylate or methacrylate monomer or oligomer capable of polymerization upon exposure to ultraviolet light, a photosensitizer, and a UV screening agent in water containing a dispersant to form a colloidal dispersion, and exposing the dispersion to UV light to cause the colloidal particles to cure only at their surface. The resulting microcapsules have a core of the uncured acrylate or methacrylate monomer or oligomer encapsulated with a wall layer of the cured acrylate or methacrylate.
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