Hoechst Aktiengesellschaft

Clariant Corporation

Targor Gmbh

Clariant International Ltd

Clariant Produkte (deutschland) Gmbh

Clarian & Gmbh

Hans-Friedrich Herrmann

Gerd Hohner

Walter Spaleck

Frank Kuber

Michael Aulbach

Bernd Bachmann

Wolfgang Anton Herrmann

Cornelia Fritze

Ludwig Bohm

Jurgen Rohrmann

Martin Antberg

Gerhard Erker

Roland Zenk

Hartmut Voigt

Timo Herrlich

Christian Steib

Markus Morawietz

Andreas Lang

Volker Dolle

Frank Osan

Joachim Berthold

Carsten Bingel

Thomas Weller

Rainer Fell

Sebastijan Bach

Rainer Lecht

Reiner Hess

Christian Psiorz

Johannes Ruwwe

Hans Joachim Vetter

Dieter Bilda

Marc Morawietz

Bernhard Hierholzer

The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterised in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170&#xb0; C., of at most 23 mN/m.

Ready-to-use hot melt adhesive having an improved property profile

The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterized in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m. The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterized in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m. The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterized in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m. The invention relates to a ready-to-use hot melt adhesive containing at least 95% of one or more polyolefin copolymer waxes, which have been prepared by means of metallocene catalysts, characterized in that the polyolefin copolymer wax consists of propylene and one or more further monomers selected from ethylene and branched or unbranched 1-alkenes having 4 to 20 C-atoms and the content of structural units derived from propylene in the copolymer waxes amounts to 80 to 99.9% by weight, and the hot melt adhesive has a surface tension of the melt, measured at a temperature of 170 DEG C., of at most 23 mN/m.

The invention relates to hot melt compositions comprising polyolefin waxes prepared using metallocene catalysts, have a dropping point or ring & ball softening point of between 80 and 165&#xb0; C., have a melt viscosity, measured at a temperature of 170&#xb0; C., of between 20 and 40 000 mPa&#xb7;s, and have a glass transition temperature of not more than &#x2212;10&#xb0; C. and also to their use as hot melt adhesives and as binders for producing roadmarkings.

Use of polyolefin waxes in hot melt road marking compositions

The present invention relates to a polypropylene wax having a melt viscosity of from 50 to 100,000 mPas at 170&deg; C., a DSC heat of fusion less than 80 J/g, a DSC melting point of greater than 130&deg; C. and a molecular weight distribution M /M of less than or equal to 3.

Polyolefin wax

Polymer oxidates and their use

The present invention relates to homopolymer and copolymer waxes which have been prepared by polymerization using metallocene compounds in the presence of hydrogen and have a melt viscosity of less then 100 mPas, measured at 170&deg; C. As a result of their high thermal stabillty, these waxes display neither discoloration nor crosslinking reactions and are vary well suited for use in toners, for plastics processing, for masterbatches, for printing inks, surface coatings and melt adhesives.

Polypropylene wax

The present invention relates to homopolymer and copolymer waxes which have been prepared by polymerization using metallocene compounds in the presence of hydrogen and have a melt viscosity of less than 100 mPas, measured at 170.degree. C. As a result of their high thermal stability, these waxes display neither discoloration nor crosslinking reactions and are very well suited for use in toners, for plastics processing, for masterbatches, for printing inks, surface coatings and melt adhesives.

Metallocene compound and its use as catalyst component The present invention relates to a multinuclear metallocene compound of the formula I, ##STR1## where M.sup.1 is a tetravalent metal, L.sup.1 are, independently of one another, identical or different and are each a substituted cyclopentadienyl group, L.sup.2 and L.sup.3 are, independently of one another, identical or different and are each a .pi. ligand, B are, independently of one another, identical or different and are each a divalent bridging unit, X are, independently of one another, identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.10 -fluorocarbon radical or a hydrocarbon-containing radical having 1-40 carbon atoms, and k is an integer from 0 to 10. The metallocene compound of the present invention is suitable as a catalyst component for preparing olefin polymers.

Metallocene compound and its use as catalyst component

The present invention relates to the use of polyolefin waxes synthesized by means of metallocene catalysts for the preparation of solvent-containing pastes. The pastes prepared in this way have a significantly higher paste hardness and an improved heat stability.

Use of polyolefin waxes in solvent pastes

The present invention relates to a method of using polyolefin waxes prepared by means of metallocene catalysts as additive components in printing inks and surface coatings.

Method of using polyolefin waxes

The present invention relates to a multinuclear metallocene compound of the formula I, ##STR1## where M.sup.1 is a tetravalent metal, L.sup.1 are, independently of one another, identical or different and are each a substituted cyclopentadienyl group, L.sup.2 and L.sup.3 are, independently of one another, identical or different and are each a .pi. ligand, B are, independently of one another, identical or different and are each a divalent bridging unit, X are, independently of one another, identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.10 -fluorocarbon radical or a hydrocarbon-containing radical having 1-40 carbon atoms, and k is an integer from 0 to 10. The metallocene compound of the present invention is suitable as a catalyst component for preparing olefin polymers.

Catalyst for the polymerization of olefins, process for its preparation, and its use. The present invention relates to a supported catalyst for the polymerization of olefins, which can be prepared by reacting the reaction product formed from an aluminoxane and at least one metallocene with a microporous, polymeric support.

Catalyst for the polymerization of olefins, process for its preparation

A catalyst formed by the reaction of a magnesium alkoxide dispersion having a particle size of from 100 to 3000 nm with a compound of a metal selected from the group comprising titanium, zirconium, vanadium and chromium and then with a chlorine-containing organoaluminum compound possesses a very good hydrogen responsiveness and a high activity even in the presence of molecular-weight regulators such as hydrogen. The catalyst is therefore outstandingly suitable for the production of low molecular-weight polyolefins. The catalyst makes possible the production of waxes having a reduced residual ash content. The large particle diameter and the low fines content of the polymer powder produced by suspension polymerization with this catalyst enables easy removal of the suspension medium and drying. The catalyst is furthermore advantageously used in solution polymerization and, because of the large particle diameter, in gas phase polymerization for producing low molecular-weight poly-1-olefins.

Process for producing low molecular-weight poly-1-olefins

Catalyst for the polymerization of olefins, process for the preparation thereof, and the use thereof. The present invention relates to a heterogeneous catalyst for the polymerization of olefins, comprising the product of the reaction of an aluminoxane which is insoluble in aliphatic and aromatic hydrocarbons, with at least one metallocene.

Catalyst for the polymerization of olefins, process for the preparation

The invention relates to an organometalic compound of the formula I ##STR1## where M is a metal atom, L are, independently of one another, identical or different .pi. ligands or other electron donors, T is a tin-containing bridge, Y are identical or different and are each a C.sub.1 -C.sub.20 -hydrocarbon group, an amide group, an alkoxy group or a halogen atom and K=0 or 1. The organometallic compound is suitable as catalyst component for olefin polymerization.

Growing community of inventors

Darmstadt, Germany

Hans-Friedrich Herrmann