FIELD: chemistry.
SUBSTANCE: liquid resin essentially consists of phenol-formaldehyde and phenol-formaldehyde-amine condensates and has water dilution at 20°C at least equal to 1000%. The resin contains 0.3% or less free formaldehyde and 0.5% or less free phenol, where said content is expressed with respect to total weight of the liquid.
EFFECT: obtaining and using liquid phenol resin with low content of free formaldehyde and free phenol.
17 cl, 3 ex
Authors
Dates
2012-01-27—Published
2007-10-11—Filed