FIELD: construction.
SUBSTANCE: raw material mixture for manufacturing of heat insulation items contains the following components, wt %: a wood filler ground to produce particles of not more than 5 mm, 62.5-64.5; phenol formaldehyde resin 9.0-10.0; hydrolysis lignin 1.5-2.5; wastes of weaving production 10.0-15.0; waste paper ground to produce particles with area of not more than 10 mm2 10.0-15.0.
EFFECT: reduced content of a toxic component - phenol formaldehyde resin - within a raw mix.
1 tbl
Authors
Dates
2013-02-10—Published
2011-11-01—Filed