N , N , N ', N ' -Tetrakis (2-hydroxyethyl) adipamide

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Structural formula
N, N, N ', N'-Tetrakis (2-hydroxyethyl) hexanediamide.svg
General
Surname N , N , N ', N ' -Tetrakis (2-hydroxyethyl) adipamide
other names

Hydroxylalkylamide

Molecular formula C 14 H 28 N 2 O 6
Brief description

white solid

External identifiers / databases
CAS number 6334-25-4
EC number 613-204-5
ECHA InfoCard 100.130.171
PubChem 95283
Wikidata Q27268763
properties
Molar mass 320.38 g mol −1
Physical state

firmly

density

1.4 g cm −3 (25 ° C)

Melting point

120-124 ° C (melting range)

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

N , N , N ', N ' -Tetrakis (2-hydroxyethyl) adipamide is a chemical compound from the group of the hydroxylalkylamides .

Properties and use

It is a white solid. In granulated delivery form, it is usually used as a hardener in weather-resistant powder coatings based on polyester resins. It serves as a substitute for triglycidyl isocyanurate , which is rarely used in Europe due to its labeling requirements.

Powder coatings crosslinked with hydroxylalkylamides and based on polyester resins containing carboxyl groups are distinguished by good weathering stability. The hydroxylalkylamide reacts by means of its hydroxyl groups with the carboxy groups of the polyester resin via a polycondensation reaction , i.e. with cleavage products. Cleavage products of this reaction are mainly water and a small proportion of lower alcohols. The resulting network makes the resulting powder coating very resistant to aggressive ultraviolet radiation . At the same time, hydroxylalkylamide-crosslinked powder coatings show good flexibility with a comparatively satisfactory chemical resistance, similar to TGIC-crosslinked systems.

Trade names

  • Primid XL-552
  • Primid QM-1260
  • Vestagon ® HA 320

Individual evidence

  1. ↑ a b Entry on N, N, N ′, N′-Tetrakis (2-hydroxyethyl) adipamide at TCI Europe, accessed on June 4, 2017.
  2. ↑ a b EMS-Chemie: Technical data sheet Product: Primid XL-552
  3. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  4. ^ A b Wiley: Kirk-Othmer Chemical Technology and the Environment, 2 Volume Set . John Wiley & Sons, 2007, ISBN 978-0-470-10540-5 , pp. 107 ( limited preview in Google Book search).
  5. ^ J. Pietschmann: Industrial powder coating. 2nd Edition. Vieweg & Sohn Verlag, Wiesbaden 2003, ISBN 3-528-13380-5 .