Byk-chemie Gmbh

Daniela Leutfeld

René Nagelsdiek

Jürgen Omeis

Sylvia Bühne

Marc Eberhardt

Berthold Jacobs

Dominika Bernert

Karlheinz Haubennestel

Ulrich Orth

Alan Lawrence Steinmetz

George Mark Zody

Stefan Moessmer

Justin Adams

Jasmin Rudner

Wesley A Huff

Albert Frank

Guillaume Wojciech Jaunky

Stefan Mössmer

Verena Wintermeyer

Mirco Süselbeck

Ina Kober

Mathis Kulessa

Matthias Pickavé

Dinah Grawe

Michaela Michelbrink

Silke Gaul

Verena Karwath

Bianca Morhenn

Sylvia Buehne

Stefan Mößmer

Sylvia BÜHNE

Alan L Steinmetz

George M Zody

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 polymer comprising structural units according to formula (I), R&#x2014;X&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;O&#x2014;POA-R&#x2014;(O&#x2014;POA-R)wherein Rrepresents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N&#x2014;R, wherein R5 represents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, Rrepresents an aliphatic hydrocarbyl group having 4 to 40 carbon atoms, POA represents a polyoxyalkylene group, R3 represents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, Ris independently selected from &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;X&#x2014;R, &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R, &#x2014;R, wherein Rrepresents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups Rper molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0, with the proviso that the polymer is not the reaction product of a) the mono-adduct of isophorone diisocyanate with 1-dodecanol and b) a polyether based on glycerol and a mixture of ethylene oxide and propylene oxide with an OH number of 18 mg KOH/g.

Polymer suitable as a thickener

The invention relates to polymer comprising structural units according to formula (I), R&#x2014;X&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;O&#x2014;POA-R&#x2014;(O&#x2014;POA-R)wherein Rrepresents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N&#x2014;R, wherein Rrepresents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, Rrepresents a hydrocarbyl group comprising an aromatic group and having 6 to 40 carbon atoms, POA represents a polyoxyalkylene group, Rrepresents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, Ris independently selected from &#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R&#x2014;NH&#x2014;(C&#x2550;O)&#x2014;NH&#x2014;R, &#x2014;R, wherein Rrepresents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups Rper molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, and a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0.

The invention relates to the use of a polysiloxane having a plurality of siloxane groups and at least one tertiary amide group covalently linked as a pending and/or terminal group to the polysiloxane, as a defoaming agent in a liquid composition.

Polysiloxane defoaming agent

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 present invention relates to a composition effective as a rheology additive containing 15-95 wt.-% of an oxygen compound (A), 5-75 wt.-% of a urea compound (B), 0-50 wt.-% of an ionogenic compound (C) and 0-35 wt.-% of an organic solvent (D).

The invention relates to a coating preparation containing

Coating preparation containing urea components and amide components

The invention relates to the use of a polyamide prepared from at least one diamine and at least one dicarboxylic acid in a formulation for defoaming aqueous media. The invention also relates to defoamers for aqueous media that comprise such a polyamide.

Antifoaming agent for aqueous media

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Wesel, Germany

Daniela Leutfeld