Plastic and nonmetallic article shaping or treating: processes – Encapsulating normally liquid material – Liquid encapsulation utilizing an emulsion or dispersion to...
Patent
1990-07-10
1993-07-06
Stoll, Robert L.
Plastic and nonmetallic article shaping or treating: processes
Encapsulating normally liquid material
Liquid encapsulation utilizing an emulsion or dispersion to...
264 46, 264 43, 42721333, 42721336, B01J 1314, B01J 1320
Patent
active
052251179
ABSTRACT:
Microcapsules which comprise, (A) a wall comprising a mixture of zirconium chloride and at least one member selected from the group consisting of poly(vinyl alcohol) and its derivatives, and (B) a core material enclosed with the wall; and a process for producing the same. In this invention, any substance can be used as the core material irrespective of its hydrophicity or hydrophobicity, and there can be obtained microcapsules excellent in heat resistance, water resistance, and transparency by simple steps.
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patent: 3574133 (1971-04-01), Bayless et al.
patent: 3576758 (1971-04-01), Emrick
patent: 3582495 (1971-06-01), Emrick
patent: 4244836 (1981-01-01), Frensch et al.
patent: 4269729 (1981-05-01), Maruyama et al.
patent: 4898781 (1990-02-01), Onouchi et al.
Covert John M.
Mitsubishi Paper Mills Limited
Stoll Robert L.
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