METHOD FOR SURFACE MODIFICATION OF RUBBERS

FIELD: rubber industry. SUBSTANCE: invention may be used when manufacturing rubber parts based on carbochain rubbers with elevated ozone resistance. Method consists in treating rubber for 5-7 h with organic solvent solution of reactive substance containing 2-mercaptobenzothiazole and sulfur followed...

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Bibliographische Detailangaben
Hauptverfasser:	D'JACHENKO M.N, RYZHKOV A.A, OGREL' A.M, ANTSUPOV JU.A, LUKASIK V.A
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: rubber industry. SUBSTANCE: invention may be used when manufacturing rubber parts based on carbochain rubbers with elevated ozone resistance. Method consists in treating rubber for 5-7 h with organic solvent solution of reactive substance containing 2-mercaptobenzothiazole and sulfur followed by drying until solvent is removed. Substance is then subjected to heat treatment at vulcanization temperature during 40-60 min. Reactive substance can additionally contain antiozonant, in particular N-isopropyl-N'-phenyl-p-phenylenediamine or 2,2,4-trimethyl-6- ethoxy-1,2-dihydroquinoline. Proportions of components are following, wt parts: organic solvent 100, 2-mercaptobenzothiazole 4-5, sulfur 1-2, and antiozonant 8-10. EFFECT: increased ozone resistance of rubber products. 2 tbl, 2 ex