Thermoresponsive microcapsule, heat sensitive recording material

Details Thermoresponsive microcapsule, heat sensitive recording material Thermoresponsive microcapsule, heat sensitive recording material

1997-10-06

1999-06-29

Nutter, Nathan M.

Stock material or miscellaneous articles

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

Particulate matter

42840222, 264 41, 264 43, 264 433, 264 47, 427148, 427149, 427150, 430 56, 430 61, 430154, B01J 1302, B41M 534

Patent

active

059166800

ABSTRACT:
A thermo-responsive microcapsule containing a diazo compound or an electron donative dye precursor, wherein the capsule wall of the microcapsule is composed of at least one polymer obtained by polymerization of an isocyanate compound containing an adduct of (A) a compound having one active hydrogen in the molecule and having an average molecular weight from 500 to 20000 and (B) a multifunctional isocyanate having two or more isocyanate groups in the molecule, and a heat-sensitive recording material and a multicolor heat-sensitive recording material comprising a heat-sensitive recording layer containing the microcapsule are disclosed.

REFERENCES:
patent: 4517141 (1985-05-01), Dahm et al.

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