Title:
COMPOSITE WALL MEMBRANE COATED MICROCAPSULE, METHOD FOR PRODUCING THE SAME AND IMAGE RECORDING SHEET USING THE SAME
Document Type and Number:
Japanese Patent JP2002336682
Kind Code:
A
Abstract:
To provide composite wall membrane coated microcapsules each having a uniform defect-free thick outer wall membrane comprising only one compound.
An outer wall membrane comprising (a) a compound which is soluble or dispersible in an acidic or alkaline dispersion medium and accumulates electric charges whose polarity is reverse to that of electric charges of an inner wall membrane made of a heat resistant synthetic resin when dissolved or dispersed in the dispersion medium and (b) fine particles which accumulate electric charges whose polarity is reverse to that of electric charges of the inner wall membrane when dissolved or dispersed in the dispersion medium, is formed on the inner wall membrane.
Inventors:
KUBOTA YUKIO
SUZUKI MINORU
SHINPO KAZUYUKI
SUZUKI MINORU
SHINPO KAZUYUKI
Application Number:
JP2001145496A
Publication Date:
November 26, 2002
Filing Date:
May 15, 2001
Export Citation:
Assignee:
ASAHI OPTICAL CO LTD
International Classes:
B41M5/28; B01J13/10; B01J13/14; B41M5/165; B41M5/30; C08G63/66; (IPC1-7): B01J13/10; B01J13/14; B41M5/165; B41M5/28; C08G63/66
Attorney, Agent or Firm:
Takaishi Tachibana
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