Formaldehyde → Melamine formaldehyde

HRID 1158183

Reaktionsgleichung

Reaktionsgleichung von HRID 1158183
CCN(C1C=CC2C3(C4C=C(Cl)C=CC=4OC=2C=1)O[C:19](=[O:20])C1C3=CC=CC=1)CC.[OH-].[Na+].[N:32]1[C:39]([NH2:40])=[N:38][C:36]([NH2:37])=[N:35][C:33]=1[NH2:34].C=O>O>[CH2:19]=[O:20].[N:32]1[C:39]([NH2:40])=[N:38][C:36]([NH2:37])=[N:35][C:33]=1[NH2:34]

Komponenten

6

Edukt 4

HCID 712FormaldehydeHCID 7955MelamineHCID 14798Sodium Hydroxide2×HCID 117320Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2'-chloro-6'-(diethylamino)-

Produkt 1

HCID 93374Melamine formaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A solution prepared by dissolving 2.5 parts by weight of 3-diethylamino-7-chlorofluoran in 80 parts by weight of NISSEKI HISOL N-296 (an oil, a trade name, mfd. by Nippon Sekiyu Kagaku K.K.) was emulsified in 100 parts by weight of a 5% aqueous solution of pH 4.0 prepared by dissolving a styrene-maleic anhydride copolymer together with a small amount of sodium hydroxide. On the other hand, when a mixture of 10 parts by weight of melamine, 25 parts by weight of a 37% aqueous formaldehyde solution and 65 parts by weight of water was adjusted to pH 9.0 with sodium hydroxide and heated at 60° C., the mixture became transparent after 15 minutes and a melamine-formaldehyde precondensate was obtained. The precondensate was added to the emulsion obtained above, and the resulting mixture was continuously stirred for 4 hours while maintaining the mixture at 60° C., and then was cooled to room temperature. The solid content of the resulting microcapsule dispersion was 45%.

Aufarbeitung

  1. customA solution prepared
  2. customprepared

Quellen und Nachweise

ORD-Eintrag
ord-d70a22e89aca47e3bd3315e5a4277552
Quelldatensatz
uspto-grants-2010_10
Patentnummer
US07807738B2

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