COMPOSITION FOR PRODUCTION OF PARTICLE BOARDS Russian patent published in 2014 - IPC C08L97/00 C08L97/02 E04C2/12 E04C2/00 

FIELD: process engineering.

SUBSTANCE: invention relates to woodworking industry and may be used for making slats. Said composition includes for inner layer 10-40% of rotten blank waste chips and 20% of wastes after roundup lumber chips as well as 40-70% of chips produced from pulp chips of PS grade with the help of binder based on low-molecular urea-formaldehyde resin and emulsion. Note here that said binder consists of low-molecular urea-formaldehyde resin of 60-62% concentration and aqueous solution of ammonia chloride of 20% concentration. Emulsion consists of the following components, in wt %: paraffin - 21, brown coal wax - 14, emulsifier - 1, water - 64.

EFFECT: lower material input, power savings, higher efficiency of equipment, lower toxicity.

1 tbl, 1 ex