Basell Polyolefine Gmbh

Celanese Ventures Gmbh

Celanese International Corporation

Celanese Emulsions Gmbh

Ticona Gmbh

Jörg Ludwig Schulte

Jörg Schottek

Yoshikuni Okumura

Tim Dickner

Alexander Madl

Luigi Resconi

Simona Guidotti

Rajeev Farwaha

Cornelia Fritze

Markus Oberhoff

Harmin Müller

Hans Uwe Faust

Elizabeth A Poole

Brett C Beauregard

Kristy Jo Beckman

Lothar Fisch

Iris Küllmer

A water-based, low-emission latex paint formulation includes a vinyl acetate/ethylene (VAE) latex including a VAE resin with from 80 to 95 weight % vinyl acetate residue and from 5 to 20 weight % ethylene residue, optionally including additional monomers as well as a pigment composition including inorganic solids selected from inorganic pigments, inorganic fillers and mixtures thereof present in an amount such that the paint formulation has a pigment volume concentration (PVC) of from 25% to 85%. The formulations are suitable for eggshell and flat latex paints and exhibit surprising durability.

Low emission, high scrub VAE latex paints

An aqueous dispersion of a vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene and a polyvinyl alcohol stabilizing system consisting essentially of (a) about 0.5 to about 3 wt. % based on the total monomer weight of a first polyvinyl alcohol having a degree of hydrolysis of at least 98 mole % and (b) about 1 to about 4 wt. % based on the total monomer weight of a second polyvinyl alcohol having a degree of hydrolysis of about 85 to about 90 mole % and a weight average molecular weight of at least 85,000 g/mol.

Vinyl ester/ethylene copolymer dispersions for use in adhesive formulations

The present invention relates to compounds of the formula (I): where

Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefins

A metallocene compound of formula (I): wherein M is zirconium, titanium and hafnium; X is a hydrogen atom, a halogen atom or a hydrocarbon radical; Ris a linear C-C-alkyl radical; Ris a hydrogen atom or hydrocarbon R, R, R, R, R, and R, are hydrogen atoms or hydrocarbon radicals, A is a sulphur (S) atom or an oxygen (O) atom; Q is a radical of formula (II), (III) or (IV) being bonded to the indenyl at the position indicated by the symbol *; (II), (III), (IV) wherein Tis a sulphur atom, an oxygen (O) atom or a NR; R, Rand Rare hydrogen atoms or hydrocarbon radicals; T, T, T, T, and Tare carbon atoms (C) or nitrogen atoms (N); m, m, m, mand mare 0 or 1; R, R, R, Rand Rare hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R, R, R, Rand Ris different from hydrogen atoms, and that no more than two of T, T, T, Tand Tare nitrogen atoms.

Metallocenes, use in catalyst system for producing olefin polymers

A process for separating inorganic and organometallic by-products from a mixture comprising at least one organometallic transition metal compound as product and at least one organometallic by-product and at least one inorganic by-product as by-products comprises the steps

Reduction of concentration of inorganic by-products and organometallic by-products in the preparation of metallocenes and economical recovery of the starting materials used

The present invention relates to a simple process for preparing specifically substituted indenes of the formula (I) or (Ia) to compounds of the formula (II) serving as starting materials and to the use of the compounds of the formula (II) as starting materials for the synthesis of substituted indenes.

Preparation of substituted indenes

The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins.

Covalently fixed nonmetallocenes, process for preparing them and their use for the polymerization of olefins

The present invention describes a novel group of specific transition metal compounds, referred to as nonmetallocene compounds, and catalyst systems prepared therefrom. These catalyst systems which have become obtainable for the first time are suitable for the polymerization of olefins.

Non-metallocene catalyst system

Organometallic transition metal compounds of the formula (I) where Mis an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides; X are identical or different and are each halogen, hydrogen, C&#x2013;C-alkyl, C&#x2013;C-alkenyl, C&#x2013;C-aryl, alkylaryl or arylalkyl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, &#x2014;ORor &#x2014;NRR, where two radicals X may also be joined to one another or two radicals X may together form a substituted or unsubstituted diene ligand, in particular a 1,3-diene ligand; where Rand Rare each C&#x2013;C-alkyl, C&#x2013;C-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl each having from 1 to 10 carbon atoms in the alkyl radical and from 6 to 22 carbon atoms in the aryl radical; n is a natural number from 1 to 4 which is equal to the oxidation number of Mminus 2; Ris a C&#x2013;Cradical which is branched in the &#x3b1; position; Ris hydrogen or a C&#x2013;Cradical which may be branched or unbranched in the &#x3b1; position; R, Rand Rare identical or different and are each hydrogen or a C&#x2013;Cradical, where at least one of the radicals R, R, Ris not hydrogen; Ris a substituted or unsubstituted C&#x2013;C-aryl radical or C&#x2013;C-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P; T is a divalent C&#x2013;Cgroup which together with the cyclopentadienyl ring forms a further saturated or unsaturated ring system having a ring size of from 5 to 12 atoms, where T may contain the heteroatoms Si, Ge, N, P, O or S withing the ring system fused onto the cyclopentadienyl ring; and Z is a bridge consisting of a divalent atom or a divalent group, can be used in catalyst systems for preparing polyolefins by polymerization or copolymerization of at least one olefin. Biscyclopentadienyl ligand systems which have such a substitution pattern and can be used for preparing these organometallic transition metal compounds are also provided 

Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins

The present invention relates to a process for preparing specific transition metal compounds, novel transition metal compounds and also catalyst systems and their use for the homo- or copolymerization of olefins.

'Constrained geometry' metallocenes, method for the production thereof and use of the same for the polymerisation of olefins

The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.

Growing community of inventors

Frankfurt-am-Main, Germany

Jörg Ludwig Schulte