Thiodiglycol → Urethane acrylate
Reaction equation
CC1C(N=C=O)=CC(N=C=O)=CC=1.[C:14]([O:18]CCO)(=[O:17])[CH:15]=[CH2:16].CCCC[CH:26]([C:29]([O-])=[O:30])CC.CCCCC(C([O-])=O)CC.[Sn+2].[N-:43]=[C:44]=[O:45].C(O)CSCCO>>[C:14]([OH:18])(=[O:17])[CH:15]=[CH2:16].[NH2:43][C:44]([O:30][CH2:29][CH3:26])=[O:45]Participants
6
Procedure
354 g of tolylene diisocyanate are reacted with 220 g of hydroxyethyl acrylate and 0.2 ml of tin octoate. When the isocyanate value reaches 15.8%, the mixture is reacted with 36 g of thiodiglycol, 400 g of an ethoxylated trimethylolpropane (OH number 250) and 400 g of the compound according to Example 11. A self-cross-linking urethane acrylate resin is obtained which has a viscosity of 200 Pas after it has been mixed with 200 g of hexanediol-1,6-diacrylate, and when tested as a 20 μm film on paper under the conditions described above, it attains a reactivity of 30 m/min.
Sources & evidence
- ORD record
- ord-58a603e8d98840c5aac0e893eeddbab1
- Source dataset
- uspto-grants-1981_12
- Patent number
- US04308394
Reaction notes
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