'Procedure for preparing urea-formaldehyde resins for solid foams with low formaldehyde emission'.

摘要

Composition based on a urea-formaldehyde polycondensate, suitable for the preparation of solid foams to be used as thermal insulating materials, characterized in that said composition contains hexamethylenetetramine in quantities comprised between 2% and 15% by weight with respect to the content of dry product of the composition.