Color developer for pressure-sensitive copying paper

Details Color developer for pressure-sensitive copying paper Color developer for pressure-sensitive copying paper

B - Operations, Transporting

41

L

42/16, 96/26

B41L 1/36 (2006.01) B41M 5/155 (2006.01) C08G 8/24 (2006.01) C08L 61/06 (2006.01)

Patent

CA 1102123

Abstract of the Disclosure A color developer for pressure-sensitive copying papers is prepared by mixing a para-substituted difunctional phenol-aldehyde condensate and tri- or higher-functional phenol-aldehyde condensate. The tri- or higher- functional phenol-aldehyde condensate can be modified by a polyvalent metal.

290144

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