EXPANDABLE STYRENE POLYMERS AND FOAMS WITH DECREASED WATER ABSORPTION

EXPANDABLE STYRENE POLYMERS AND FOAMS WITH REDUCED WATER ABSORPTION ABSTRACT THE PRESENT INVENTION RELATES TO AN EXPANDABLE STYRENE POLYMER WHICH COMPRISES ATHERMANOUS PARTICLES AND HAS BEEN COATED WITH A HYDROPHOBICIZING AGENT, WHICH COMPRISES FROM 10 TO 90% BY WEIGHT OF AT LEAST ONE TRIESTER OF AT LEAST ONE FATTY ACID WITH A POLYHYDRIC ALCOHOL, AS COMPONENT A, FROM 5 TO 70% BY WEIGHT OF AT LEAST ONE MONOESTER OF A FATTY ACID WITH A POLYHYDRIC ALCOHOL, AS COMPONENT B, FROM 5 TO 80% BY 0 WEIGHT OF AT LEAST ONE METAL SAFT OF A FATTY ACID, AS COMPONENT C, FROM 5 TO 50% BY WEIGHT OF AT LEAST ONE SILICATE, AS COMPONENT D, AND FROM 0 TO 30% BY WEIGHT OF AT LEAST ONE ANTISTATIC AGENT, AS COMPONENT E, AND THE ENTIRETY OF COMPONENTS A TO E OF THE HYDROPHOBICIZING AGENT AMOUNTS TO 100% BY WEIGHT, TO A PROCESS FOR PREPARATION OF EXPANDABLE STYRENE POLYMER, VIA COATING OF AN EXPANDABLE STYRENE POLYMER, WHICH 5 COMPRISES ATHENNANOUS PARTICLES, WITH A HYDROPHOBICIZING AGENT, TO A FOAM PRODUCED FROM THIS EXPANDABLE STYRENE POLYMER, AND ALSO TO THE USE OF A HYDROPHOBICIZING AGENT FOR COATING OF EXPANDABLE STYRENE POLYMERS COMPRISING ATHERMANOUS PARTICLES. ' NI 2"G