Method of preparing microcapsules

Details Method of preparing microcapsules Method of preparing microcapsules

1984-03-23

1985-06-25

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

346200, 106316, 252 495, 264 4, 42840221, 42840222, 42840224, 524510, 524597, 524598, 528254, C08L 6128

Patent

active

045255202

ABSTRACT:
In a microencapsulation process which causes hydrophobic core material containing an oil-soluble melamine-formaldehyde precondensate to emulsified in water or in a hydrophilic medium, and to form capsule wall film under conditions for promoting polycondensation, the process which is characterized in that said oil-soluble melamine-formaldehyde precondensate is 40 to 100% in a degree of formaldehyde substitution, 80 to 100% in alkylation degree, and 4 to 11 in hydrophobic degree.

REFERENCES:
patent: 3755190 (1973-08-01), Hart et al.
patent: 3779941 (1973-12-01), Powell

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