Byk-chemie Gmbh

Christiane Knappke-Bongartz

René Nagelsdiek

Sylvia Bühne

Agnetha Klein

Berthold Jacobs

Jasmin Rudner

Jan Von Haaren

Meike Johann

Andre Tiemann

Lee Robyn Gunning

Jasmin MÜLLEMANN

Kathrin Moellers

Verena Boeckmann

Christoph Verlinden

Sylvia Buhne

Sylvia BÜHNE

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

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Wesel, Germany

Christiane Knappke-Bongartz