A composition for the production of feeders, their use, a method for the production of feeders using the composition and resulting feeder.

摘要

A composition for the production of insulating and / or an exothermic feeder as well as other filling hopper - and delivery elements for casting molds, comprising(i) refractory hollow spheres;(ii) a binder composition, comprising an aqueous dispersion of a thermoplastic polymer as well as a swelling section binder agent; wherein the refractory hollow spheres in the composition witha proportion of from 10 to 90 degree. -% are contained, the swelling section binder agent, based on the dry mass of the swelling section by means of binders, in the composition with a proportion of from 1 to 20 degree. -%, andthe aqueous dispersion of the thermoplastic polymer, based on an aqueous dispersion with a proportion of from 40 to the plastic polymer degree. -%, in the composition with a proportion of from 1 to 25% is contained degree. -.