Acrylic Acid → Urethane acrylate

HRID 2259794

Reaktionsgleichung

Reaktionsgleichung von HRID 2259794
C[C@@]12[CH:10]([C:11]([C:13]([O-:15])=[O:14])=C)C[C@H](C1(C)C)CC2.C([O-])(=O)CCCCCCCCC[CH2:26][CH3:27].C([O-])(=O)CCCCCCCCCCC.C([Sn+2]CCCC)CCC.C(OCCO)(=O)C=C.[N-:61]=C=O.C(O)(=O)C=C.OC(C)(C)C(C1C=CC=CC=1)=O>C(OCC1OCCC1)(=O)C=C.C(O)C>[NH2:61][C:13]([O:15][CH2:26][CH3:27])=[O:14].[C:13]([OH:15])(=[O:14])[CH:11]=[CH2:10]

Komponenten

9

Edukt 6

HCID 6581Acrylic AcidHCID 131652-Hydroxyethyl acrylateHCID 819842-Hydroxy-2-methyl-1-phenylpropan-1-oneHCID 105034IsocyanateHCID 9809426Di-n-butyldilauryltinHCID 92004758Isobomyl acrylate

Produkt 1

HCID 21863578Urethane acrylate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 94232Tetrahydrofurfuryl acrylateLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

An acrylate urethane oligomer composition was prepared in the following manner. A flask was charged with 202.8 g of PPG 1025 (polypropylene glycol with average molecular weight of 1025), 83.2 g of PPG 425 (polypropylene glycol with average molecular weight of 425), 221.6 g of isobornyl acrylate, 150.0 g of diphenylmethane 4,41 diisocyanate and 0.4 g of dibutyltin dilaurate. The mixture was heated at 80° C. for two hours. Hydroxyethyl acrylate, 23.2 g, was added and the heating continued for one hour. Ethanol, 9.7 g, was added and heating continued until the isocyanate band in the IR at 2268 cm-1 disappeared. The still warm product was diluted with 211.6 g of tetrahydrofurfuryl acrylate, 35.2 g acrylic acid and 35.2 g of Darocure 1173 initiator which is 2-hydroxy-2-methyl-1-phenyl-propane-1-one, a product of Ciba-Geigy. After thoroughly mixing, the mixture was poured warm into an opaque container. The yield of colorless product was 973 g with a viscosity of 8100 cP.

Aufarbeitung

  1. temperatureheating
  2. additionAfter thoroughly mixing
  3. additionthe mixture was poured
  4. temperaturewarm into an opaque container

Quellen und Nachweise

ORD-Eintrag
ord-c4c9dd2e963747218d6ab6f32af6e9ea
Quelldatensatz
uspto-grants-1995_12
Patentnummer
US05475038

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