Calcium Chloride → Calcium Stearate

HRID 236886

Reaktionsgleichung

Reaktionsgleichung von HRID 236886
[Cl-].[Ca+2:2].[Cl-].[C:4]([O-:23])(=[O:22])[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21].[NH4+]>O>[C:4]([O-:23])(=[O:22])[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21].[Ca+2:2].[C:4]([O-:23])(=[O:22])[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21]

Komponenten

4

Edukt 2

HCID 5284359Calcium ChlorideHCID 9861187Ammonium Stearate

Produkt 1

HCID 15324Calcium Stearate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Versuchsvorschrift

272 ml. of water, 10 g. of Gelvatol 1-90 polyvinylalcohol and 5 g. of Acrysol WS-32 acrylic polymer were heated until the binders dissolved. 50 g. of stearic acid was then added and melted to form a liquid layer floating on the aqueous solution. 23 ml. of ammonium hyroxide (28% solution), which was the stoichiometric amount to form ammonium stearate, was then added dropwise to the gently stirred liquid. An intractable gel is formed which was transferred to a vigorously-stirred Waring Blendor, and then 20 g. of calcium chloride dissolved in 20 ml. of water slowly added until the mixture became solid. 50 ml. of water was then added with stirring until a creamy paste formed. After drying on a substrate this material gave a pressure-sensitive film with excellent hiding power. The formation of ammonium stearate in situ is the preferred method of preparation because it allows a higher solids content to be obtained and yields smaller particles of calcium stearate. The density of the dry coating was 0.5 g./cc which is equivalent to about 50% void volume.

Aufarbeitung

  1. additionwas then added dropwise to the gently stirred liquid
  2. customAn intractable gel is formed which
  3. customformed
  4. customAfter drying on a substrate this material
  5. customgave a pressure-sensitive film with excellent hiding power
  6. customthe preferred method of preparation because it
  7. customto be obtained

Quellen und Nachweise

ORD-Eintrag
ord-a68358ed604a4a659cf5272e31886c4b
Quelldatensatz
uspto-grants-1979_06
Patentnummer
US04158648

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