EP 0667875 A1 19950823 - PROCESS FOR POLYMERIZING ALPHA-OLEFIN.
Title (en)
PROCESS FOR POLYMERIZING ALPHA-OLEFIN.
Title (de)
VERFAHREN ZUR POLYMERISATION VON ALPHA-OLEFINEN.
Title (fr)
PROCEDE DE POLYMERISATION D'ALPHA-OLEFINES.
Publication
Application
Priority
- US 9310653 W 19931105
- US 97240292 A 19921106
Abstract (en)
[origin: WO9411409A1] A process for polymerizing one or more alpha -olefins of up to 20 carbon atoms which comprises contacting the one or more alpha -olefins under polymerization conditions with a catalyst system comprising: (a) a titanium halide-containing, magnesium-containing pro-catalyst component wherein the component is obtained by contacting a magnesium compound of the formula MgR'R", wherein R' and R" are, independently, alkoxide group, aryloxide group or halogen, with a halogenated tetravalent titanium compound in the presence of a polycarboxylic acid ester electron donor with or without a halohydrocarbon, (b) an organo-aluminium cocatalyst component, and (c) an organosilane selectivity control agent represented by general formula (i), wherein R<1> is alkyl group of 13 to 30 carbon atoms, alkaryl group of 16 to 36 carbon atoms or aralkyl group of 16 to 36 carbon atoms; R<2> and R<3> are, independently, methyl or alkyl group of 13 to 30 carbon atoms or hydrocarbyloxy group of 1 to 6 carbon atoms; and R<4> is a hydrocarbyloxy group of 1 to 6 carbon atoms. The process affords high catalyst productivity and produces polymer products that have broad molecular weight distribution while retaining low oligomer content properties.
IPC 1-7
IPC 8 full level
C08F 10/00 (2006.01)
CPC (source: EP KR)
C08F 4/6543 (2013.01 - KR); C08F 4/6562 (2013.01 - KR); C08F 10/00 (2013.01 - EP); C08F 110/02 (2013.01 - KR); C08F 110/06 (2013.01 - KR)
Citation (search report)
See references of WO 9411409A1
Designated contracting state (EPC)
AT BE DE ES FR GB GR IT NL PT SE
DOCDB simple family (publication)
WO 9411409 A1 19940526; AU 5458394 A 19940608; BR 9307390 A 19990831; CA 2148596 A1 19940526; CN 1092431 A 19940921; EP 0667875 A1 19950823; KR 950704372 A 19951120; MX 9306919 A 19950131
DOCDB simple family (application)
US 9310653 W 19931105; AU 5458394 A 19931105; BR 9307390 A 19931105; CA 2148596 A 19931105; CN 93112706 A 19931106; EP 93925170 A 19931105; KR 19950701794 A 19950504; MX 9306919 A 19931105