B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 13/04 (2006.01) C04B 26/32 (2006.01) C08J 3/12 (2006.01) C08K 5/54 (2006.01)
Patent
CA 2063011
PROCESS FOR THE MICROENCAPSULATION OF WATER-EMULSIFIABLE NON-THERMOPLATIC SUBSTANCES Abstract of the Disclosure The invention relates to a process for the preparation of microencapsulated flakes or powders by drying aqueous mixtures containing (a) one or more water-emulsifiable, non-thermoplastic compounds which have a higher boiling point than water and (b) at least one water-soluble, film-forming polymer, in which the con- tent of component (a) is up to about 95% by weight, based on the dry weight of components (a) and (b), with the proviso that the water-soluble, film-forming polymer has a flocculation point of from 20 to 98°C or the flocculation point is adjusted to from 20 to 98°C with the aid of additives, and drying is carried out by thin-layer drying in a temperature range above the flocculation point.
Eck Herbert
Fleischmann Gerald
Hopf Heinrich
Innertsberger Ernst
Schmidlkofer Jakob
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie G.m.b.h.
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