Microcapsules

Details Microcapsules Microcapsules

B - Operations, Transporting

41

M

42/15

B41M 5/165 (2006.01) B01J 13/16 (2006.01)

Patent

CA 1143560

M I C R O C A P S U L E S Abstract of the Disclosure Microcapsules containing a colour-former solution: which is encapsulated in the form of a solution in an organic solvent in capsules of the polyaddition product of a diisocyanate correspond- ing to the following general formula: Image (I) wherein n = 3 - 6 and a diamine wherein a mixture of an alkyl naphthalene and an isoparaffin containing from 10 to 20 carbon atoms is used as the solvent for the colour-former and the microcapsules are tempered for at least 2 hours at a temperature of from 60 to 70°C after their formation. Le A 19 505

347481

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