Production of microcapsules

Details Production of microcapsules Production of microcapsules

Filed on

1988-01-07

Date issued

1990-02-06

Examiner

Lovering, Richard D.

Patent Class

Stock material or miscellaneous articles

SubClass

Coated or structually defined flake, particle, cell, strand,...

SubSubClass

Particulate matter

Other Related Categories

106 21, 264 43, 264 433, 264 47, 4284022, 503215, B01J 1302

Type

Patent

Status

active

Patent number

048987808

Description

ABSTRACT:
Microcapsules having hard, thick walls are formed by dispersing an oily solution containing a crosslinking agent in an aqueous solution, and forming a polysalt in the aqueous solution, the polysalt including a high molecular weight polyanion and a low molecular weight polycationic polyamine having a functionality of at least three. The polyanion is preferably casein. The microcapsules may be used in a CB ink for preparing carbonless copy paper.

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