Byk-chemie Gmbh

Sylvia Bühne

René Nagelsdiek

Jürgen Omeis

Daniela Leutfeld

Marc Eberhardt

Berthold Jacobs

Agnetha Klein

Christiane Knappke-Bongartz

Dominika Bernert

Jasmin Rudner

Jan Von Haaren

Bianca Morhenn

Andre Tiemann

Meike Johann

Verena Karwath

Silke Gaul

Ina Kober

Agnetha Schmitt

Christian Sauerländer

Kathrin Moellers

Verena Boeckmann

Dominika Beata Chajda

The present invention relates to a urea group containing product comprising one or more species of formula (I) R&#x2014;X&#x2014;(C&#x2550;O)&#x2014;[NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)]&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;X&#x2014;R(I), 5 wherein Ris independently selected from organic groups having (4) to (200) carbon atoms, X is O or NR, wherein Ris a hydrogen atom or an aliphatic or aromatic group having (1) to (30) carbon atoms, Ris independently selected from hydrocarbyl groups having (4) to (40) carbon atoms, Ris independently selected from hydrocarbyl groups having (2) to (40) carbon atoms, and wherein on average (76) to (100) mol % of all Rgroups contained in the one or more species of formula (I) are hydrocarbyl groups having (2) or (3) carbon atoms, and n is an integer of (2) to (150). The invention further relates to a method of manufacturing such urea group containing products, liquid compositions containing the same and the use of such liquid compositions as rheology control additives. Furthermore, the invention relates to a process for rheology adjustment adding such liquid composition to semi-finished or final products. The invention also relates to an article coated with the liquid composition.

Urea group containing anti-sagging rheology control agents

The present invention relates to diamide-polyolefin wax mixture comprising one or more diamides (A) and one or more polyolefin waxes (B), where the diamide or diamides (A) possess a structure of the formula X&#x2014;CO&#x2014;NH&#x2014;Y&#x2014;NH&#x2014;CO&#x2014;X, in which Xand Xare identical or different and are linear or branched, saturated or unsaturated, optionally substituted hydrocarbon radicals having 3 to 29 carbon atoms, and Y is a divalent organic radical which is selected from the group consisting of aliphatic radicals having 2 to 26 carbon atoms, aromatic radicals having 6 to 24 carbon atoms or araliphatic radicals having 7 to 24 carbon atoms, and Y optionally comprises secondary or tertiary amino groups, and the polyolefin wax or waxes (B) carry one or more carboxyl groups and have an acid number of 3 to 50, and are homopolymers or copolymers of at least one ethylenically unsaturated olefin monomer, where the diamide or diamides (A), based on the total weight of the diamide-polyolefin wax mixture, are present in an amount of 20 wt % to less than 40 wt %, the polyolefin wax or waxes (B), based on the total weight of the diamide-polyolefin wax mixture, are present in an amount of above 60 wt % up to 80 wt %, characterized in that the diamide-polyolefin wax mixture at 25&#xb0; C. is a particulate solid of defined particle size distribution, and the particles comprise both the diamide (A) and the polyolefin wax (B). The invention further relates to the preparation of the aforesaid diamide-polyolefin wax mixture, to the use thereof in liquid compositions, especially as a rheology control agent, to compositions additized accordingly, and to rheology control agents which comprise the diamide-polyolefin wax mixtures.

Powder particulate diamide-polyolefin wax mixture

The invention relates to urea- and/or urethane-substituted amides of the general formula (I) The radicals R1, Z1, R2, and Z2 comprise a building block containing urea groups and/or containing urethane groups; the radicals R4, Z4, R5, and Z5 comprise a building block containing amide groups, and E is a carboxylic acid group or salt thereof. The invention also relates to rheology control agents which consist of or comprise the amides of the formula (I). A further subject of the invention is a method for producing the rheology control agents, and the use of the urea- and/or urethane-substituted amides, and also of the rheology control agents, as thickeners, especially in liquid compositions, and also the liquid compositions themselves.

Urea-group- and/or urethane-group-containing amides as and in rheology control agents, their preparation and their use

The invention relates to an emulsion containing or consisting of 

Emulsion, method for the production thereof and use thereof

The present invention relates to ureaurethanes of the following formula (I) in which at least one of the Ror Rradicals is a mono- or polyunsaturated, branched or unbranched alkenyl or alkynyl radical having 12 to 24 carbon atoms, n is an integer &#x2265;1, where the upper limit for n arises from the maximum number average molecular weight Mof the ureaurethanes of the general formula (I), which is 65 000 g/mol, and which is determined by means of gel permeation chromatography to DIN 55672-2 using a polymethyl methacrylate standard, Ris a xylylene radical or a hydrogenated xylylene radical and Ris a tolylene radical or various other radicals. The invention also relates to ureaurethane compositions comprising the ureaurethanes of the invention and to the preparation of both. The invention further relates to the use of the ureaurethanes or ureaurethane compositions as rheology control agent and antisettling agent. The invention further provides liquid formulations from the group consisting of coating compositions, polymer formulations, pigment pastes, sealant formulations, cosmetics, ceramic formulations, drilling fluids, adhesive formulations, potting compounds, construction material formulations, lubricants, spackling compounds, printing inks and other inks, comprising the ureaurethanes and ureaurethane compositions.

Ureaurethanes for rheology control

The invention relates to a rheology control agent containing i) 15-95% by weight of an amide compound (A), ii) 5-75% by weight of a urea compound (B), iii) 0-50% by weight of an ionogenic compound (C) and iv) 0-35% weight of an organic solvent (D).

Composition for rheology control

The invention relates to a urea preparation containing (A) 5 to 75 wt. % of one or more urea components which have a molecular weight of at least 350 g/mol and contain at least one urea group; (B) 15 to 95 wt. %, preferably 30 to 80 wt. %, of one or more organic solvents from the group of N alkyl amides that have a molecular weight of 155 to 700 g/mol, are free of urea groups, and have the following formula (I), in which (a) Ris an x-containing hydrocarbon group, where x=1 to 24 carbon atoms, Ris a y-containing organic group, where y=1 to 12 carbon atoms, and Ris a z-containing organic group, where z=1 to 12 carbon atoms, or (b) R, R, and Rare defined as in (a) but Rand Rare connected to each other by a chemical bond and together form a ring with 4 to 10 ring atoms while incorporating the group C(&#x2550;O)N, and in the case of a ring with 4 or 5 ring atoms, Rcontains at least 6 carbon atoms and maximally 11 carbon atoms, or (c) R, R, and Rare defined as in (a) but Rand Rare connected to each other by a chemical bond and together form a ring with 4 to 10 ring atoms while incorporating the nitrogen atom of the general formula (I) with the proviso that for each of (a), (b), and (c), x+y+z&#x2267;8; (C) 0 to 35 wt. % of one or more organic solvents which differ from (B) and do not contain urea groups or ionic groups and which have maximally two heteroatoms selected from the group consisting of nitrogen and oxygen; and (D) 0 to 50 wt. % of a salt which differs from the urea component(s) (A), the solvent(s) (B), and the solvent(s) (C), wherein the sum of all of the stated weight percentages equals the total weight of the urea preparation. The invention further relates to the use of the urea preparation as a rheology additive for liquid compositions and to liquid media which contain the urea preparations.

Storage-stable urea preparations which are suitable as rheology control agents

The invention relates to polyureas having a weight-average molecular weight ranging from 5,000 to 70,000 g/mol, the preparation thereof, and the use thereof as rheology control agents. The invention further relates to rheology control agents containing polyureas and to the use thereof. The invention moreover relates to formulations containing polyureas.

Polyureas as rheology control agents

The invention relates to a coating preparation containing

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Duisburg, Germany

Sylvia Bühne