1,3-Bis(isocyanatomethyl)benzene → Trimethylolpropane
Reaction equation
[N-]=[C:2]=[O:3].[N-]=[C:5]=[O:6].[C:7]1(C)[C:8]([CH3:13])=CC=C[CH:12]=1.C1C=C(CN=C=[O:24])C=C(CN=C=O)C=1>>[CH2:12]([C:7]([CH2:2][OH:3])([CH2:5][OH:6])[CH2:8][CH3:13])[OH:24]Participants
Procedure
As the oil phase component, 10 g of trimethylolpropane and xylene diisocyanate adduct (Takenate D-110N, produced by Mitsui Takeda Chemicals, Inc., a 75 mass % ethyl acetate solution), 3.00 g of Aronics M-215 (produced by Toagosei Co., Ltd.) and 0.12 g of Pionin A-41C (produced by Takemoto Yushi Co., Ltd.) were dissolved in 16.67 g of ethyl acetate. As the aqueous phase component, 37.5 g of an aqueous 4 mass % PVA-205 solution was prepared. The oil phase component and the aqueous phase component were mixed and emulsified in a homogenizer at 12,000 rpm for 10 minutes, The resulting emulsified product was added to 25 g of distilled water and the obtained mixture was stirred at room temperature for 30 minutes and then stirred at 40° C. for 2 hours. The thus-obtained microcapsule solution was diluted with distilled water to a solid content concentration of 15 mass %. The average particle diameter was 0.2 μm. The cross section of the particle was observed by SEM, as a result, it was confirmed that Aronics M-215 having an ethylenically unsaturated bond was not enclosed in the particle unlike a microcapsule but was present on the surface.
Sources & evidence
- ORD record
- ord-bde196e89c1743399c8b218b7c066fbb
- Source dataset
- uspto-grants-2008_10
- Patent number
- US07435532B2
Reaction notes
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