METHOD OF VOLUME MODIFICATION OF POLYMERIC MATERIALS

FIELD: volume modification by functional agents of polymeric materials in solid state for imparting specified new physicochemical properties. SUBSTANCE: polymeric material is heated within the temperature range of relaxation alpha - transition to a temperature of lower than the point of its melting...

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Bibliographische Detailangaben
Hauptverfasser:	GASANOV D.R, SURIN N.M, NEKRASOV V.V, KUZNETSOV A.A, EREMEEV A.P
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: volume modification by functional agents of polymeric materials in solid state for imparting specified new physicochemical properties. SUBSTANCE: polymeric material is heated within the temperature range of relaxation alpha - transition to a temperature of lower than the point of its melting or destruction. Within the specified temperature range the material is treated by vapors of modifying agent at a partial air pressure of not higher than 10,000 Pa. Material is heated to the temperature of one of the relaxation alpha - transitions with due account made for the required degree of material saturation with modifying agent. Only a section of material may be subjected to modification. After modification material or its section may be heated and evolved vapors of modifying agent may be evacuated. EFFECT: facilitated procedure. 5 cl, 1 dwgT