Braskem S.a.

Jonas Alves Fernandes

Renata Da Silva Cardoso

Marcia Regina Washburger

Cesar Augusto Sales Barbosa

Adriane Gomes Simanke

Mauro Alfredo Soto Oviedo

Hadi Mohammadi

Manoela Ellwanger Cangussu

Ashley Hanlon

Markus Busch

Sascha Hintenlang

Nei Sebastiao Domingues Junior

Márcia Regina Washburger

A polymer composition may include a polymer produced from ethylene, and one or more vinyl carbonyl monomers having the general structure (I): where R, Rand Rare independently selected from a group consisting of hydrogen, halogen, hydroxyl, alkyl, substituted alkyl, alkoxy, substituted alkoxy, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aralkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, carboxamino(alkyl), (cyano)alkyl, alkoxyalkyl, hydroxyalkyl, heteroalkyl, substituted cycloalkyl, substituted cycloalkoxy, substituted aryl, and substituted heterocycles; and Y and Z are independently selected from a group consisting of O, (CRR), (CHR)&#x2014;R, phenylene, CH&#x2014;OR, and NR, wherein R, R, R, R, and Rare independently selected from a group consisting of hydrogen, halogen, CH, and alkyl, and wherein Ris independently selected from a group consisting of hydrogen; halogen; hydroxyl; alkyl; linear ether; cyclic ether; Si(R), wherein Ris independently selected from a group consisting of hydrogen, halogen, and alkyl; and (C&#x2550;O)&#x2014;R, wherein Ris an alkyl; and Ris independently selected from a group consisting of halogen, hydroxyl, alkyl, substituted alkyl, alkoxy, substituted alkoxy, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aralkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, carboxamino(alkyl), (cyano)alkyl, alkoxyalkyl, hydroxyalkyl, heteroalkyl, substituted cycloalkyl, substituted cycloalkoxy, substituted aryl, and substituted heterocycles, where the polymer composition has a number average molecular weight (M) ranging from 5 kDa to 10000 kDa obtained by GPC.

Polyethylene copolymers and products and methods thereof

The present invention describes a catalyst support, which is used as an inorganic carrier for a Ziegler-Nata catalyst (ZN), using a modified spray cooling method. Such a catalyst support is prepared from alcoholic solutions of (a) an inorganic compound, in which the inorganic compound is a magnesium compound and (b) an inorganic compound and one or more additives. The solutions are prepared at a temperature below 100&#xb0; C., carried through a nozzle placed inside a reactor, and sprayed into droplets forming a solid precipitate, which is generally spherical, when in contact with an inert hydrocarbon solvent at low temperature. The obtained catalyst support is reacted with a titanium compound, preferably titanium tetrachloride, in order to produce an active catalyst for olefin polymerization.

Catalyst support and related processes

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Sao Paulo, Brazil

Jonas Alves Fernandes