High mol. wt. polyethylene prodn. - using a catalyst contg. titanium tetra:chloride and a mixt. of alkylaluminium and alkylaluminium alkoxide

Ultra high molecular polyethylene is made by polymerising ethylene at 50-80 degrees C and up to 10 atmos. press. in an aliphatic hydrocarbon solvent, in the presence of a catalyst comprising an alkylaluminium component (I) and TiCl4. The (I) used is a mixt. of AlR2X (II) and Al(OR)RX (III) in which...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NIKOLAEVNA SEVEROVA,NINA, VASILJEVNA MISCHTSCHUK GEB. IVANOVA,VALENTINA, IVANOVITSCH DSCHULGAKOV,JURIJ, DMITRIEVITSCH PETSCHENKIN,ANATOLIJ, ALEKSANDROVNA SCHIBALOVSKAJA,SVETLANA, VLADIMIROVNA ARCHIPOVA GEB. JAROSLAVSKAJA,ZINAIDA, FILIMONOVITSCH VASILENKO,VLADIMIR, VLADIMIROVITSCH CHODARKEVITSCH,VLADIMIR, VENIAMINOVNA VESELOVSKAJA GEB. MELECHINA,ELENA, NIKOLAEVITSCH KOLESNIKOV,JURIJ
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Ultra high molecular polyethylene is made by polymerising ethylene at 50-80 degrees C and up to 10 atmos. press. in an aliphatic hydrocarbon solvent, in the presence of a catalyst comprising an alkylaluminium component (I) and TiCl4. The (I) used is a mixt. of AlR2X (II) and Al(OR)RX (III) in which R is C2H5. C3H7, or iso-C4H9 and X is C2H5, C3H7, iso-C4H9 or H. The mol. ratio (II):(III) = 15:1 to 1:1, esp. 10:1 to 5:1, and the mol. ratio (I):TiCl4 is 1:1 to 2:1. Process gives reduced catalyst consumption and gives prods. of improved quality. Prod. is used in the prodn. of hydrofoils and lids in papermaking industry; in the textile industry for the prodn. of picks; in the chemical industry; and in medicine.