Formaldehyde → Melamine formaldehyde

HRID 224539

反応式

HRID 224539 の反応式
C(C1C=CC2C(=CC=CC=2)C=1C(C)C)(C)C.C(C1=C[C:27](OC1=O)=[O:28])=CC1C=CC=CC=1.[OH-].[Na+].[N:34]1[C:41]([NH2:42])=[N:40][C:38]([NH2:39])=[N:37][C:35]=1[NH2:36].C=O>O>[CH2:27]=[O:28].[N:34]1[C:41]([NH2:42])=[N:40][C:38]([NH2:39])=[N:37][C:35]=1[NH2:36]

参加物

7

反応物 5

HCID 712FormaldehydeHCID 7955MelamineHCID 14798Sodium Hydroxide2 回HCID 30236511,2-Bis(isopropyl)naphthaleneHCID 54215275Styrenemaleic anhydride

生成物 1

HCID 93374Melamine formaldehyde

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
60 °C

実験手順

A hydrophobic material was prepared by dissolving under heating 2 gr of crystal violet lactone (CVL) and 1 gr of benzoyl leucomethylene blue (BLMB) in 100 gr of KMC-113 (commercial name for an oil product--an aromatic hydrocarbon solvent mainly composed of diisopropylnaphthalene, b.p. 250°-350° C. - by Kureha Chemicals), and this hydrophobic material (an oil solution of dye) was emulsified in 100 gr of a 5% aqueous solution (pH 4.0) of Scripset 520 (a styrene-maleic anhydride (1:1 by mole) copolymer by Monsanto) having dissolved therein a small quantity of sodium hydroxide. Then, a mixture composed of 10 gr of melamine, 25 gr of 37% formaldehyde and 65 gr of water was rendered into pH 9 with sodium hydroxide and heated to 60° C., whereby the solution became transparent in 15 minutes and a melamine-formaldehyde precondensate was obtained. To this precondensate was added the said emulsion, and after adjusting the solution temperature to 60° C., the mixture was agitated. Formation of the capsules was confirmed in 30 minutes, so that products were cooled down to room temperature. The thus obtained micro-capsules could be excellently applied to no-carbon copying paper. (See the photograph of FIGURE).

後処理

  1. customA hydrophobic material was prepared
  2. dissolutionby dissolving
  3. dissolutionhaving dissolved

出典と根拠

ORDレコード
ord-d1f3dc1a81604491982ead01ce14c7ad
出典データセット
uspto-grants-1980_11
特許番号
US04233178

関連ノート

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