Plastic and nonmetallic article shaping or treating: processes – Encapsulating normally liquid material – Liquid encapsulation utilizing an emulsion or dispersion to...
Patent
1990-10-22
1992-09-01
Maples, John S.
Plastic and nonmetallic article shaping or treating: processes
Encapsulating normally liquid material
Liquid encapsulation utilizing an emulsion or dispersion to...
264 46, 42721332, 42721336, 514963, 424460, A61K 950
Patent
active
051436612
ABSTRACT:
There is disclosed a process for preparing compositions comprising microcapsules by phase separation microencapsulation wherein the hardening agent employed is a volatile silicone fluid and with the compositions prepared thereby. The use of the volatile silicone fluid as a hardening agent permits the production of microcapsules substantially free of any alkane hardening agent, eliminating potential combustability problems of the prior art processes and toxicity problems of the prior art compositions.
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patent: 4685883 (1987-08-01), Jernberg
patent: 4732763 (1988-03-01), Beck et al.
patent: 4917893 (1990-04-01), Okada et al.
patent: 4935171 (1990-06-01), Bracken
patent: 4954381 (1990-09-01), Cabasso et al.
patent: 5000886 (1991-03-01), Lawter et al.
Lanzilotti Michael G.
Lawter James R.
American Cyanamid Company
Costigan James V.
Geist Gary L.
Jackson H. G.
Maples John S.
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