PROMOTOR EINES POLYMERISATIONSKATALYSATOR

Compounds of the formula: wherein n is 1, 2, 3, or 4; X1 and X2 are each, independently, chlorine or bromine; A is O or S; R1 is hydrogen or C1-C16 alkyl; R2 is C1-C16 alkyl, C6-C16 aryl, C1-C4 alkylidene, or CH2OR5; R3 is hydrogen, chlorine, bromine, or OR6; R4 is C1-C16 alkyl, C7-C16 aralkyl, C2-C...

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Bibliographische Detailangaben
Hauptverfasser: O'SHEA, XAVIER, FENG, WU, NUDENBERG, WALTER, MCGEARY, ANN
Format: Patent
Sprache:ger
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Zusammenfassung:Compounds of the formula: wherein n is 1, 2, 3, or 4; X1 and X2 are each, independently, chlorine or bromine; A is O or S; R1 is hydrogen or C1-C16 alkyl; R2 is C1-C16 alkyl, C6-C16 aryl, C1-C4 alkylidene, or CH2OR5; R3 is hydrogen, chlorine, bromine, or OR6; R4 is C1-C16 alkyl, C7-C16 aralkyl, C2-C16 alkenyl, or C6-C18 aryl; R5 is hydrogen, C1-C16 alkyl, C7-C16 aralkyl, C2-C16 alkenyl, or C6-C18 aryl; and R6 is hydrogen or C1-C16 alkyl. These compounds by themselves and in combination with certain halo-but-2-enoic acids and esters are useful as catalyst promoters in ethylene polymerization processes.