Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to partially crystalline polypropylene homopolymer or copolymer waxes modified so as to be polar and having an acid or saponification number of from 0.5 to 120 mg KOH/g, a melt viscosity of from 20 to 50,000 mPa.s/170.degree. C. and a softening point (ring/ball) of from 90 to 165.degree. C., prepared by reacting a nonpolar polypropylene homopolymer or copolymer wax with an .alpha.,.beta.-unsaturated carboxylic acid or a derivative thereof in the presence of free-radical formers, wherein the nonpolar polypropylene wax has been prepared by direct polymerization of propylene or copolymerization of propylene with higher 1-olefins using catalysts of Ziegler or metallocene type and has a softening point (ring/ball) of from 90 to 165.degree. C.The waxes are useful as plastics additives, for aqueous dispersions or for melt adhesive formulations.

Abstract: 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.

Abstract: A process for the preparation of a polyolefin wax by polymerization or copolymerization of olefins or diolefins in suspension and in the presence of a catalyst. The process utilizes a metallocene and a cocatalyst, wherein the metallocene is a compound of the formula I ##STR1## in which M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of Elements, R.sup.1 and R.sup.2 are identical or different and are a hydrogen atom, a C.sub.1 -C.sub.10 -alkyl group, a C.sub.1 -C.sub.10 -alkoxy group, a C.sub.6 -C.sub.10 -aryl group, a C.sub.6 -C.sub.10 -aryloxy group, a C.sub.2 -C.sub.10 -alkenyl group, a C.sub.7 -C.sub.40 -arylalkyl group, a C.sub.7 -C.sub.40 -alkylaryl group, a C.sub.8 -C.sub.40 -arylalkenyl group or a halogen atom and R.sup.3 and R.sup.4 are identical or different and are a mononuclear or polynuclear hydrocarbon radical which may form a sandwich structure with the central atom M.sup.

Abstract: A process for the preparation of a polyolefin wax by polymerization or co-polymerization of olefines or diolefins at a temperature of -40.degree. to 100.degree. C. at a pressure of 0.5 to 120 bar, in suspension and in the presence of a metallocene catalyst and a co-catalyst, thereby producing wax products in solid form which may be easily separated from the suspending agent and the catalyst need not be separated off.

Abstract: Copolymers which have been prepared by copolymerization of long-chain .alpha.-olefins with olefinically unsaturated acids and esters and, if appropriate, vinyl-aromatic compounds are particularly suitable for economical preparation of aqueous emulsions. The emulsions are suitable as care agents for flooring, automobiles, furniture and leather and for hydrophobizing, for treatment of textiles, for coating glass, for anticorrosive preservation, for example of automobiles, as facade protection and for sealing concrete.

Abstract: Copolymers prepared by free radical polymerization of a C.sub.12 --C.sub.60 -.alpha.-olefin with a carboxylic acid of the formula CH.sub.2 .dbd.CR.sup.1 --COOH, a carboxylic acid ester of the formula CH.sub.2 .dbd.CR.sup.1 --COOR.sup.2 and, if appropriate, a styrene compound prove to be highly active lubricants and release agents in polymers, in particular in polyvinyl chloride, which scarcely influence the transparency of the polymers.

Abstract: Waxy esters of aromatic alcohols with long-chain carboxylic acids give lubricants and release agents for highly transparent thermoplastics which reduce the transparency of these plastics to a far lesser degree than the previously customary montan wax esters of aliphatic alcohols.