Abstract: Aqueous polyacrylate dispersions comprising hydrophobic co-solvents are provided. The dispersions are prepared from copolymers P) which are comprised of I) a hydroxy-functional, hydrophobic polymer containing as structural monomers Ia) (meth)acrylic acid esters having from C1- to C18-hydrocarbon radicals in the alcohol part and/or vinyl aromatic compounds and/or vinyl esters and Ib) hydroxy-functional monomers; and II) a hydroxy-functional, hydrophilic polymer containing as structural components IIa) (meth)acrylic acid esters having from C1- to C18-hydrocarbon radicals in the alcohol part and/or vinyl aromatic compounds and/or vinyl esters, IIb) hydroxy-functional monomers and IIc) acid-functional monomers, and as solvents C) one or more solvents selected from the group consisting of hydrophobic, water-immiscible hydrocarbons having an initial boiling point of from 170° C. to 250° C. and a dry point of from 200° C. to 280° C.

Abstract: The invention relates to aqueous crosslinkable binder dispersions comprising hydroxy-functional copolymers based on ethylene glycol monoallyl ether, to a process for preparing them and to the use of the dispersions in coating materials.

Abstract: An aqueous binder dispersion that includes at least one copolymer (P) containing carboxylic acid and/or carboxylate groups. The copolymer (P) includes structural units of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure, and at least 25 mol % of the carboxylic acid groups of the copolymer (P) in the dispersion being present in triethanolamine-neutralized form. The aqueous binder can be used in aqueous coating materials, which can be used to coat a substrate.

Abstract: A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ionic and/or potentially ionic monomers capable of free-radical copolymerization, and d)optionally further monomers, other than the compounds of components a)–c), capable of free-radical copolymerization; to free-radical polymerization in the presence of e) compounds according to formula (I) where R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3, R4 are identical or different aliphatc radicals having 1 to 7 carbon atoms and n is 1 to 4; and subsequently dispersing the resultant copolymer B) before or after addition of a neutralizing agent C) in water. The resulting dispersions can be used to coat substrates.

Abstract: The invention relates to aqueous crosslinkable binder dispersions comprising hydroxy-functional copolymers based on ethylene glycol monoallyl ether, to a process for preparing them and to the use of the dispersions in coating materials.

Abstract: The present invention relates to polyacrylate-modified polyisocyanates which are i) prepared from aromatic, araliphatic, cycloaliphatic and/or aliphatic polyisocyanates having an NCO content of 5% to 25% by weight, an NCO functionality ?2, a viscosity measured as solvent free resin of 150 to 200,000 mPa·s at 23° C., and ii) contain at least one structural unit of the formula (I) wherein R is hydrogen or a methyl group, R1 is an optionally heteroatom-containing hydrocarbon radical and R2 is a hydrocarbon radical having at least one isocyanate group and optionally urethane, allophanate, biuret, uretdione, isocyanurate and/or iminooxadiazinedione groups and n ist a number ?1. The present invention also relates to a process for preparing these polyisocyanates and to binder compositions containing these polyisocyanates, which may be hydrophilically modified, and a compound having NCO-reactive groups.

Abstract: The present invention related to a process for preparing aqueous polyester-polyacrylate dispersions having a cosolvent content of 0 to 5% by weight, based on the weight of the dispersion, by preparing a polymer P) in a first step by polymerizing A) a mixture of vinyl monomers that are capable of free-radical copolymerization, in the presence of B) one or more oligoesters prepared from compounds containing lactone groups and having a hydroxyl number of 145 to 710 mg KOH/g, an acid number of ?0.5 mg KOH/g solids and an average OH functionality of 2.5 to 5 mg KOH/g solids, and then mixing polymer P) in a second step with C) one or more polyester polyols having a hydroxyl number of 10 to 500 mg KOH/g solids and an acid number of >0.5 to ?30 mg KOH/g solids and dispersing the resulting polymer mixture in water in a further step, before or after addition of a neutralizing agent.

Abstract: The present invention relates to a process for preparing aqueous, hydroxy-functional polyester-polyacrylate dispersions having a cosolvent content of 0 to 5% by weight, based on the weight of the dispersion, by preparing a polymer P) in a first step by polymerizing A) a mixture of vinyl monomers that are capable of free-radical copolymerization, in the presence of B) one or more compound(s) of formula (I) wherein R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3 and R4 are identical or different aliphatic radicals having 1 to 7 carbon atoms, and n is 1 to 4, and then mixing polymer P) in a second step with C) one or more polyester polyols having a hydroxyl number of 10 to 500 mg KOH/g solids and an acid number of >0.5 to ?30 mg KOH/g solids, and dispersing the resulting polymer mixture in water in a further step, before or after addition of a neutralizing agent.

Abstract: The invention relates to aqueous crosslinkable binder dispersions comprising hydroxy-functional copolymers based on ethylene glycol monoallyl ether, to a process for preparing them and to the use of the dispersions in coating materials.

Abstract: The invention relates to aqueous two-component polyurethane systems comprising vinyl polymer polyol dispersions modified with reactive diluents, to a process for preparing them and to use as coating materials.

Abstract: The present invention relates to heat and storage stable vinyl polymer polyol secondary dispersions containing A) at least one vinyl polymer resin having functional groups selected from hydroxyl, carboxyl and/or sulfonic acid groups and dispersed in a water/solvent mixture in the presence of a neutralizing agent, and B) at least one amphiphilic polymer built up from a hydrophobic and a hydrophilic segment. The invention also relates to a process for the preparation of the vinyl polymer polyol secondary dispersions by preparing vinyl polymer resin A) by polymerizing a mixture of ethylenically unsaturated monomers a) in the presence of an initiator b) in a water/solvent mixture and adding at least one amphiphilic polymer B), then at least partly neutralizing and dispersing the resulting product, optionally after the addition of a further amount of water.

Abstract: The invention relates to solvent-borne polyurethane resins with a high carbonate group content which are dilutable in water, to aqueous coating compositions prepared thereof, to a process for preparing them and to their use.

Abstract: A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ionic and/or potentially ionic monomers capable of free-radical copolymerization, and d)optionally further monomers, other than the compounds of components a)-c), capable of free-radical copolymerization; to free-radical polymerization in the presence of e) compounds according to formula (I) where R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3, R4 are identical or different aliphatc radicals having 1 to 7 carbon atoms and n is 1 to 4; and subsequently dispersing the resultant copolymer B) before or after addition of a neutralizing agent C) in water. The resulting dispersions can be used to coat substrates.

Abstract: Aqueous, hydroxy-functional binder dispersions with a low solvent content and based on hydroxy-functional copolymers. The binders are prepared by subjecting one or more vinyl monomer mixtures containing OH-free (meth)acrylic esters and/or vinylaromatics, hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, and ionic and/or potentially ionic monomers capable of free-radical copolymerization, to free-radical polymerization in the presence of at least one compound containing lactone groups and subsequently dispersing the resultant copolymer before or after addition of a neutralizing agent in water. The binder combinations can be used in coating materials.

Abstract: Coating compositions based on aqueous polyurethane dispersions, a process for preparing such compositions and their use for producing soft feel coatings having low fog and VOC values. The aqueous coating compositions include at least one aqueous formulation of an ionically modified, substantially hydroxyl-free poylurethane and/or polyurethaneurea, at least one aqueous formulation of an ionically modified, hydroxyl-containing polyuerthane and/or polyurethaneurea, and at least on crosslinker.

Abstract: The invention relates to solvent-borne polyurethane resins with a high carbonate group content which are dilutable in water, to aqueous coating compositions prepared thereof, to a process for preparing them and to their use.

Abstract: The invention relates to a new process for the preparation of functionalized telechelics based on vinyl polymers, the telechelics prepared in this way and their use in the plastics, fibers or coating sector.

Abstract: The invention relates to water-dilutable polyurethanes containing structural units derived from 3,4-epoxy-1-butene and also to aqueous dispersions comprising these polyurethanes, to a process for preparing them and to use as aqueous oxidatively drying and/or UV-crosslinking coating compositions.

Abstract: The invention relates to aqueous polyurethane (PU)-polyacrylate (PAC) hybrid secondary dispersions and the aqueous two-component (2K) coating compositions produced therefrom, a process for their preparation and use.

Abstract: The present invention relates to aqueous one-component (1K) coating systems based on non-isocyanate-reactive polyurethane dispersions (polyurethane dispersions which are not reactive towards isocyanate groups) and blocked, hydrophobic polyisocyanates and also to a process for their preparation and use.