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EP0000903A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Carbonless copying paper and manufacture thereof

Assignee: Bayer AG
•
Filing: 1978-08-09
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Granted: —
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Expires: 1998-08-09
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Abstract

Abstract Translated from German Reaktionsdurchschreibepapier, das eine Lösung eines Farbstoffbildners in mikroverkapselter Form enthält, dadurch gekennzeichnet, dass der Farbstoffbildner als Lösung in einem hydrophoben organischen Lösungsmittel eingekapselt ist, und dass die Kapselwände aus dem Polyadditionsprodukt eines Diisocyanats der Formel (I) <IMAGE> worin R einen zweiwertigen aliphatischen Rest bedeutet, und einem Diamin bestehen. Carbonless reaction paper which contains a solution of a dye former in microencapsulated form, characterized in that the dye former is encapsulated as a solution in a hydrophobic organic solvent, and in that the capsule walls consist of the polyaddition product of a diisocyanate of the formula (I) <IMAGE> wherein R is a divalent aliphatic Rest means, and consist of a diamine.

Inventors

  • 👤 Günther Dr. Baatz
  • 👤 Walter Dr. Schäfer
  • 👤 Kurt Dr. Findeisen
  • 👤 Manfred Dr. Dahm

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 05:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/165; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/16; C; C07; C07D; C07D273/00; C07D273/02; C07D273/04; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/7875; C08G18/7887; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985

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