配方类型:
RUBBER, RESINS, WAXES
配方说明:
Water soluble Air Drying Alkyd Resins
配方组成:
Pentaerythritol/60.000
The standard alkyd resin equipment is employed. A 3-neck Pyrex flask
equipped with stirrer, thermometer, inert gas inlet, condenser and
electric heating mantle. Fusion or solvent cooks may be used. If a
solvent cook is employed, blow out all residual xylene near the end of
the run.
Charge all ingredients and heat to 400'F in about one hour. Hold at
400'F until the acid number drops to 56 to 58. Cool and reduce. The
resin may be stored as an 80% solution in a 50:50 mixture of "Dowanol"
DPM and n-propyl alcohol.
Reductio
Litharge/0.076
Phthalic Anhydride/160.000
DMPA/50.000
Litharge/0.066
Above Resin (75% solids)/100.00
Triethyl Amine/6.75
Distilled Water/97.65
Adjust to pH of 7.0 to 7.2 with additional amine.
Dipentaerythritol/-
Safflower Oil/220.000
Phthalic Anhydride/160.000
Phthalic Anhydride/317.1
TRIMET, Technical/87.1
Pentaerythritol, Technical/100.0
Safflow
配制方法:
Add the triethylamine to the resin, which should be warm (125-130'F). Stir and add the coupling solvents. Continue stirring while adding the distilled water slowly. Solution will be facilitated if the water is warm (120-130'F). Adjust the final pH to about 7.5 with additional amine if necessary.
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