Process for preparing microcapsules

Details Process for preparing microcapsules Process for preparing microcapsules

1986-07-16

1988-06-28

Henderson, Christopher

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

Synthetic resins

Processes of preparing a desired or intentional composition...

264 47, 427212, C08K 900

Patent

active

047539682

ABSTRACT:
In a microencapsulation process which comprises polycondensating a hydrophilic melamine-formaldehyde resin type precondensate in water or in a hydrophilic medium containing an emulsifier to form capsule wall film around a hydrophobic core material to obtain microcapsules, the process which is characterized in that the emulsifier is a copolymer of (1) an unsaturated monobasic acid monomer of at least 80 mole %, (2) a hydrophobic monomer and (3) a hydrophilic monomer other than a carboxylic acid.

REFERENCES:
patent: 4013606 (1977-03-01), Ballweber
patent: 4251386 (1981-02-01), Saeki et al.
patent: 4594370 (1986-06-01), Adkins
patent: 4598111 (1986-07-01), Wright

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