Biuret compounds for rheology control
A technology of biuret compounds, applied in the field of biuret compounds for rheology control
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Embodiment 1
[0065] In a 1-liter 3-necked flask equipped with a stirrer, reflux condenser and thermometer, 195.0 g (0.5 mol) of hexamethylene diisocyanate uretdione (Bayer's N3400, NCO content = 21.5%) and 138.2 g (1.0 mol) of ethylene glycol monophenyl ether, the initial charge was heated to 70°C. The reaction was carried out until the NCO content was less than 0.1%. Then, the reaction mixture was cooled to 50 °C.
[0066] Table 1:
[0067] Component A:
[0068]
[0069] Remark 1:
[0070] M 600: Huntsman's EO / PO polyether containing monoamine functional groups (EO:PO=1:9), Mn~600g / mol
[0071] M 1000: Huntsman's EO / PO polyether containing monoamine functional groups (EO:PO=19:3), Mn~1000g / mol
[0072] Polyglycol M 350, 500: Clariant's EO polyether containing monohydroxyl functional groups prepared from methanol, Mn ~ 350 or 500g / mol
[0073] Preparation of component B of the present invention:
Embodiment 10
[0075] In a 1-liter 3-neck flask equipped with a stirrer, a water separator and a thermometer, add 227.8 g (0.4 mol) of dimer acid Pripol in sequence TM 1009 (hydrogenated dimer fatty acid, Uniqema, trimer acid up to 1%), 69.6g (0.6mol) hexamethylenediamine and 152.1g Exxsol D40 (dearomatized hydrocarbon, ExxonMobil Chemical), the initial The feed was slowly heated to 170°C. The water released slowly during the reaction was azeotropically separated by a water separator. The condensation product has an amine number of 51. Then, add 57.6g (0.2mol) tall oil fatty acid (containing the monobasic carboxylic acid mixture of the resin acid (abietic acid) of high content oleic acid and linoleic acid and about 2%, ArizonaChemical GmbH), through water separator azeotropic The water liberated during the reaction was separated off. The condensation product has an amine number of 22.7. Then, the reaction mixture was cooled to 50 °C.
[0076] Table 2:
[0077] Component B:
[0078] ...
Embodiment 20
[0090] In a 1-liter 3-necked flask equipped with a stirrer, reflux condenser and thermometer, 66.6 g (0.1 mol) of the adduct from Example 1 and 247.1 g (0.1 mol; amine number = 22.7) of the adduct from Condensation product of Example 10, the initial charge was heated to 85°C. The reaction mixture was stirred until the amine number was less than one. The product was then diluted with isobutanol to a solids content of 30%.
[0091] table 3:
[0092] Biuret adducts:
[0093] Example
Component A
Component B
21
Example 2
Example 19
22
Example 4
Example 11
23
Example 7
Example 15
24
Example 8
Example 13
25
Example 9
Example 14
[0094] Performance results:
[0095] White paint formulation: Worléekyd S 365 white paint, 64% binder, 20% TiO 2
[0096] Worléekyd S 365 70% in K 030 34.4
[0097] 110 0.6
[0098] RKB-2 (TiO 2 ) 20.0
[0099] BYK 066 0.3
[0100] Disper...
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