FIELD: chemical technology. SUBSTANCE: aminoplastics are prepared on the base of amino-aldehyde binders and fillers. Said components are preliminary mixed. Molding and drying of aminoplastics are carried out simultaneously with their polycondensation by mixing and by heating reagents. Said processes are carried out at 90-140 C in reactor, extruder or rollers being used as mentioned above reactor. EFFECT: improves efficiency of the method. 3 cl, 1 tbl
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METHOD FOR PRODUCTION OF AMINO-ALDEHYDE RESINS | 1993 |
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POLYMERIC COMPOSITION FOR CLEANING MOLDS | 1992 |
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Authors
Dates
1995-09-27—Published
1992-11-10—Filed