Abstract: The invention relates to stable dispersions of inorganic nanoparticles, comprising inorganic nanoparticles in a dispersion medium, the dispersions being admixed with at least one stabilizer from the group of (i) modified, more particularly hydrophobically modified, preferably urea-modified polyurethanes and (ii) modified ureas, more particularly urea urethanes, and also mixtures and/or combinations thereof, and also to the use of these dispersions.
Abstract: The invention concerns a composition comprising as component (A): 10% to 97% by weight, based on the total weight of the composition, of one or more monocarboxylic esters of the general formula R1—CO—OR2, in which R1 is a saturated or unsaturated, branched or straight-chain, aliphatic group having 11 to 23 carbon atoms and R2 is a branched or straight-chain aliphatic group, a cycloaliphatic group or aromatic group having 1 to 13 carbon atoms, and the sum of the carbon atoms of the groups R1 and R2 is not more than 30, the monocarboxylic ester or esters possessing a boiling point of more than 250° C. under a standard pressure of 101.3 kPa, and as component (B): 3% to 90% by weight, based on the total weight of the composition, of one or more dispersants, the composition possessing a viscosity at 25° C. of less than 5000 mPas. The invention further concerns the use of the composition as a dispersion medium, millbases obtained from the composition, and the use of the millbases.
Type:
Application
Filed:
September 1, 2009
Publication date:
December 22, 2011
Applicant:
BYK-Chemie GmbH
Inventors:
Martin Fischer, Wolfgang Pritschins, Frank Vennhoff, Lucia Spikker-Heilen, Andrea Esser
Abstract: The invention relates to polyhydroxyfunctional polysiloxanes, which may be produced by the addition of at least one branched polyhydroxyfunctional allyl polyether to a Si—H functional alkyl polysiloxane, to methods for production thereof and the use thereof as additives in thermoplastics and polymeric moulded masses and the thermoplastics and polymeric moulded masses containing the same.
Type:
Application
Filed:
July 6, 2009
Publication date:
December 1, 2011
Applicant:
BYK-Chemie GmbH
Inventors:
Wojciech Jaunky, Barbel Gertzen, Albert Frank, Hans-Willi Bogershausen, Alfred Bubat, Jurgen Omeis
Abstract: The present invention relates to a composition comprising at least one amphiphilic glycidyl ether copolymer composed of special structural units I to V, wherein at least one of the structural units I has an aromatic group, and wherein the structural units may each be arranged in a block, a gradient or randomly, as a dispersant and a dispersed solid matter or as an emulsifier and an unsaturated polymer system in the form of a water-in-oil emulsion to be cured.
Type:
Application
Filed:
May 23, 2011
Publication date:
October 20, 2011
Applicant:
BYK-CHEMIE GMBH
Inventors:
Guillaume JAUNKY, Bernd Gobelt, Jürgen Omeis
Abstract: Curable polymer mixtures comprising at least one oligomeric addition product with hydrolyzable silane groups and additional functional groups as the mediator additive, and a curable polymer system having epoxy group-carrying polymers and curing agents, fillers and optionally addditives; polymer concrete mixtures and molded bodies produced therefrom
Type:
Application
Filed:
August 19, 2009
Publication date:
August 4, 2011
Applicant:
BYK-CHEMIE GMBH
Inventors:
René Nagelsdiek, Bernd Göbelt, Wolfgang Pritschins, Dorothée Greefrath, Stephan Remme, Andrea Esser
Abstract: The invention relates to a method for production of polyhydroxyfunctional polysiloxanes with branched polyglycidol polyether groups, in which firstly at least one allylic or methallylic starting material is reacted with at least one glycidol, such that an allyl polyether or methallyl polyether is formed, and then the allyl polyether or methallyl polyether thus produced is added to a Si—H functional alkyl polysiloxane in the presence of an acid buffering agent. The invention further relates to polysiloxanes, which may be obtained by said method and the use of the polysiloxanes in coating agents, polymeric coating masses and thermoplastics.
Type:
Application
Filed:
July 6, 2009
Publication date:
August 4, 2011
Applicant:
BYK-Chemie GmbH
Inventors:
Wojciech Jaunky, Albert Frank, Hans-Willi Bogershausen, Wolfgang Griesel, Petra Della Valentina, Jurgen Omeis
Abstract: The invention relates to powder coating leveling agents comprising (a) at least one polypropylene oxide-containing polyether having a weight-average molecular weight of more than 1000 g/mol and a polypropylene oxide fraction of more than 75% by weight, and optionally (b) at least one poly(meth)acrylate. The invention further relates to the preparation of such leveling agents and to their use in powder coating materials, and also to powder coating materials comprising the leveling agents.
Type:
Application
Filed:
August 2, 2008
Publication date:
July 14, 2011
Applicant:
BYK-Chemie GmbH
Inventors:
Bernd Gobelt, Heiko Juckel, Thomas Launag
Abstract: The invention relates to polyesters which contain carboxy groups and which are used as dispersing agents for pigment concentrates for the colouring of thermoplastics, and to a process for their preparation. The invention further relates to the use of the polyesters as dispersing agents, and also to masterbatches which comprise pigments, thermoplastics and the polyesters.
Type:
Grant
Filed:
March 10, 2005
Date of Patent:
May 24, 2011
Assignee:
BYK-Chemie GmbH
Inventors:
Karlheinz Haubennestel, Alfred Bubat, Udo Krappe, Barbel Gertzen, Joerg Garlinsky, Wolfgang Pritschins
Abstract: The invention relates to addition compounds and their salts that comprise polypropylene oxide structures, characterized in that the addition compounds are obtainable by reacting (a) one or more polyisocyanates having at least two isocyanate groups per molecule with (b1) one or more compounds of the formula Y—XH, (b2) optionally one or more compounds of the formula G-(XH)n, (c1) one or more compounds of the general formula Z-Q and (c2) optionally one or more compounds of the general formula M-Q. The invention further relates to the preparation of the addition compounds and to their use as dispersants, wetting agents and dispersion stabilizers, and also to solids coated with the addition compounds.
Type:
Application
Filed:
February 19, 2009
Publication date:
January 27, 2011
Applicant:
BYK-Chemie GmbH
Inventors:
Wolfgang Pritschins, Jurgen Omeis, Hans-Josef Teuwsen
Abstract: Low-VOC mixture of at least partially salified copolymers of at least one ethylenically unsaturated, phenyl-group-containing monomer and at least one ?,?-unsaturated monocarboxylic acid and/or at least one ?,?-unsaturated dicarboxylic acid, of at least one water-soluble polyether, esterification products of at least one water-soluble polyether and an aliphatic dicarboxylic acid, and of a star polymer obtainable by esterifying a carboxylic acid containing at least 3 carboxyl groups with at least one water-soluble polyether, and use thereof as a wetting and dispersing agent, preferably for producing low-VOC pigment pastes or low-VOC paint systems.
Type:
Application
Filed:
July 28, 2010
Publication date:
December 23, 2010
Applicant:
BYK-CHEMIE GMBH
Inventors:
Bernd Göbelt, Carsten Nagel, Jürgen Omeis, Marcus Meichsner, Diana Walter
Abstract: The invention relates to copolymers comprising three segments of different ion density, the fraction of the ionic monomers in each segment being from 1 to 100 mol %, the second and third segment containing ethylenically unsaturated monomers of the respectively preceding segment, and the copolymers being preparable by means of a monofunctional initiator by way of NMP or RAFT. The invention further relates to a process for preparing copolymers and to their use as dispersants.
Type:
Grant
Filed:
January 3, 2007
Date of Patent:
December 14, 2010
Assignee:
BYK-Chemie GmbH
Inventors:
Bernd Göbelt, Jürgen Omeis, Sabine Johann
Abstract: The invention relates to amide-containing polymers of the general formula (I) A-X—CO—(CH2)2—NR1—R2—[Y—R3—Y—R4)a—B??(I) and also their salts with carboxylic acids, phosphoric esters and sulphonic acids. The invention further relates to processes for preparing the amide-containing polymers and to their use as rheology control agents.
Type:
Grant
Filed:
October 10, 2006
Date of Patent:
November 16, 2010
Assignee:
BYK-Chemie GmbH
Inventors:
Karlheinz Haubennestel, Stefan Moessmer, Ulrich Orth, Daniela Betcke
Abstract: The invention relates to polyhydroxy-functional polysiloxanes which are preparable by the addition reaction of at least one branched polyhydroxy-functional allyl polyether with an Si—H-functional alkyl polysiloxane, to processes for preparing them, to their use as additives in coating compositions, polymeric moulding compounds or thermoplastics, and to coating compositions, polymeric moulding compounds and thermoplastics that comprise them.
Type:
Application
Filed:
July 4, 2007
Publication date:
September 23, 2010
Applicant:
BYK-Chemie GmbH
Inventors:
Albert Frank, Wolfgang Griesel, Petra D. Valentina, Michaela Vorderwulbeke
Abstract: The invention relates to amide-containing polymers of the general formula (I) A-X—CO—(CH2)2—NR1—R2—[Y—R3—Y—R4)a—B??(I) and also their salts with carboxylic acids, phosphoric esters and sulphonic acids. The invention further relates to processes for preparing the amide-containing polymers and to their use as rheology control agents.
Type:
Grant
Filed:
November 16, 2007
Date of Patent:
September 21, 2010
Assignee:
BYK-Chemie GmbH
Inventors:
Karlheinz Haubennestel, Stefan Moessmer, Ulrich Orth, Daniela Betcke
Abstract: Storage tank loaded with an aqueous medium and made of porous, freely flowing particles, wherein the particles are formed from a hydrophobic polymer and the loading of said particles contains at least one particular mediator additive of the general formula (I), the use of which as an entrainer delivery agent for removing volatile components from plastics, for evenly doping intermediate plastic products and/or plastic articles with adjuvants as a soil improvement agent such as a delivery agent for a pest management agent or fertilizer
Type:
Application
Filed:
March 15, 2010
Publication date:
August 19, 2010
Applicant:
BYK-CHEMIE GMBH
Inventors:
Alfred BUBAT, Frank Albert, Jürgen Hartmann, Jörg Garlinsky
Abstract: The invention relates to compositions comprising two structured linear copolymers selected from the group consisting of block copolymers and gradient copolymers, these copolymers being prepared by different controlled polymerization techniques and the difference in the polydispersities of these copolymers, ?(Mw/Mn), being ?0.25. The invention further relates to the production of such blends and to their use as wetting agents and dispersants.
Abstract: The present invention relates to comb (block) copolymers obtainable by reacting I at least one (block) copolymer comprising polymerised, optionally substituted styrene and maleic anhydride units, which copolymer has been obtained by living, free-radical polymerisation, with II at least one polyalkylene oxide monoamine comprising a primary amino end group at a reaction temperature of ?150° C. and by subsequent salification of at least 25 mol % of the free carboxyl groups of the reaction product at a reaction temperature of <100° C. and optionally after addition of H2O and to the use of these comb copolymers as wetting agents and dispersants.
Type:
Application
Filed:
December 21, 2007
Publication date:
April 22, 2010
Applicant:
BYK-CHEMIE GMBH
Inventors:
Bernd Göbelt, Jürgen Omeis, Ulrich Orth, Heribert Holtkamp, Marcus Meichsner
Abstract: The invention relates to surface-modified particles, more particularly inorganic-based particles having reactive surfaces, more particularly surfaces containing silane-reactive and/or siloxane-reactive groups, preferably hydroxyl-containing surfaces and/or particles comprising or consisting of metal and/or semi-metal oxides and/or hydroxides, preferably nanoparticles, which on their surface have a polysiloxane-based modifier having more particularly been reacted on their surface with a polysiloxane-based modifier, preferably with the formation of chemical bonds, more particularly covalent bonds, and also to a method of producing these surface-modified particles.
Type:
Application
Filed:
July 16, 2007
Publication date:
February 25, 2010
Applicant:
BYK-CHEMIE GMBH
Inventors:
Ulrich Nolte, Alfred Bubat, Karlheinz Haubennestel, Thomas Sawitowski
Abstract: The present invention relates to a polymer mixture consisting of at least one comb copolymer I containing blocks consisting of special structural units and at least one copolymerisate II comprising polymerised, optionally substituted styrene and maleic anhydride units, the carboxyl groups of which are present at least partially as alkali metal, earth alkali metal or ammonium salts, and also to the use of these polymer mixtures as wetting and dispersing agents.