FIELD: process engineering.
SUBSTANCE: invention relates to production of high-gloss laminar panels. Process comprises application of resin composition layer composed by paper impregnated with resin on substrate of, preferably, MDF board, HDF board or wood particle board. Application of increased pressure of 15-50 bar at increased temperature of 130-220°C for 7-60 s unless at least incomplete resin hardening without back cooling. Resin composition comprises melamine-phenolic resin (MF) in water and, additionally, one or more additives selected from the group including thiourea, 1-amine-2-thiourea, stabilized thiourea, thio-acetamidea, or additive in compliance with formula 1: where R1 and R4 are alcohol, preferably, -CH2OH, while R2 and R3 stand for polyol, preferably, -CH(OH)-CH(OH)-. Besides, invention relates to composition of resin for process implementation.
EFFECT: higher efficiency.
15 cl, 8 tbl
Authors
Dates
2015-11-10—Published
2011-03-18—Filed