Ziegler catalyst

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• ziegler catalyst — ˈzēglə(r) noun Usage: usually capitalized Z Etymology: after Karl Ziegler b1898 German chemistry institute director : a catalyst (as triethyl aluminum or a complex of a trialkyl aluminum with titanium tetrachloride) that promotes an ionic type of …   Useful english dictionary

• Ziegler catalyst — /ˈziglə kætələst/ (say zeegluh katuhluhst) noun a catalyst which promotes the polymerisation of ethylene and propylene at normal temperatures and pressures, as titanium trichloride; used in the production of stereospecific polymers. {named after… …  

• Ziegler-Natta catalyst — ▪ chemistry       any of an important class of mixtures of chemical compounds remarkable for their ability to effect the polymerization of olefins (olefin) (hydrocarbons containing a double carbon–carbon bond) to polymers of high molecular… …   Universalium

• Ziegler — is a common German surname meaning bricklayer , and may refer to the following people:*Adolf Ziegler (1892 1959), German painter, favoured by Adolf Hitler *Alexander Ziegler (1944 1987), a Swiss author and actor *Arthur Ziegler the first… …   Wikipedia

• Ziegler-Natta catalyst — A Ziegler Natta catalyst is a reagent or a mixture of reagents used in the production of polymers of 1 alkenes (α olefins). Ziegler Natta catalysts are typically based on titanium compounds and organometallic aluminium compounds, for example… …   Wikipedia

• Ziegler–Natta catalyst — A Ziegler–Natta catalyst is a catalyst used in the synthesis of polymers of 1 alkenes (α olefins). Three types of Ziegler–Natta catalysts are currently employed: Solid and supported catalysts based on titanium compounds. They are used in… …   Wikipedia

• Karl Ziegler — Infobox Scientist name = Karl Waldemar Ziegler image width = caption = Karl Ziegler birth date = November 26, 1898 birth place = Helsa near Kassel, Germany nationality = Germany death date = death date and age|1973|8|12|1898|11|26 death place =… …   Wikipedia

• Post-metallocene catalyst — A post metallocene catalyst is a kind of catalyst for olefin polymerization. Post metallocene refers to the generation of catalysts following Kaminsky catalysts, which are metallocene catalysts discovered in 1980 by Walter Kaminsky, and have been …   Wikipedia

• Arthur P. Ziegler, Jr. — Infobox Person name = Arthur P. Ziegler, Jr. image size = caption = Arthur P. Ziegler, Jr. at Station Square (2006) birth date = birth date and age|1937|06|20 birth place = Pittsburgh, Pennsylvania occupation = President, Pittsburgh History and… …   Wikipedia

• Kaminsky catalyst — A Kaminsky catalyst is a catalytic system for alkene polymerization discovered in 1980. Kaminsky catalysts are based on metallocenes of group 4 transition metals with methylaluminoxane (MAO). These catalysts are a type of Ziegler Natta catalyst,… …   Wikipedia

• industrial polymers, major — Introduction       chemical compounds used in the manufacture of synthetic industrial materials.       In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… …   Universalium