Abstract: Thickeners, which are based on an aqueous preparation of nonionic water-dispersible or water-soluble polyurethanes, it being possible to produce these polyurethanes by reacting (a) one or more hydrophilic polyols (a) which contain, per molecule, at least two OH groups and at least two functional groups which are selected from the functions —O— (ether groups) and —COO— (ester groups), where the molecular weight of these hydrophilic compounds is at least 300, (b) one or more compounds of the formula (I), ?in which R is a CH3—CH(CH3)— (CH2—CH(CH3))2— group or a C15H31-m group (where m=0, 2, 4 or 6), Y is hydrogen or a methyl group and n is a number in the range from 0 to 10, and (c) one or more at least difunctional isocyanates, in which the compounds a), b) and c) are reacted with one another in the equivalent ratios OHa):OHb):NCOc) of 1:(1+x):2(1+y), with the provisos that the following conditions apply: x is a number in the range from 0.05 to 1.2, y is a number in the range from (0.2 to 1.

Abstract: Disclosed is a thickener based on an aqueous preparation of a nonionic, water-dispersible or water-soluble polyurethane, obtained by reacting: (a) hydrophilic polyols containing at least two OH groups and at least two functional groups selected from ether and ester, of molecular weight at least 300; (b) hydrophobic compounds containing at least one zerewitinoff-active hydrogen atom, of molecular weight about 100 to about 500, with at least one linear or branched, saturated or unsaturated alkyl chain having at least five consecutive carbon atoms not linked to a hetero atom; and (c) at least difunctional isocyanates, where the components are reacted in equivalent ratios OHa):ZHb):NCOc) of 1:(1+x):2(1+y), with the provisos that x is 0.05-1.2, y is (0.2-1.05)x, and more than one equivalent of NCOc) is present versus the sum of OHa) and ZHb).

Abstract: Thickeners, which are based on an aqueous preparation of nonionic water-dispersible or water-soluble polyurethanes, it being possible to produce these polyurethanes by reacting (a) one or more hydrophilic polyols (a) which contain, per molecule, at least two OH groups and at least two functional groups which are selected from the functions —O— (ether groups) and —COO— (ester groups), where the molecular weight of these hydrophilic compounds is at least 300, (b) one or more compounds of the formula (I), in which R is a CH3—CH(CH3)—(CH2—CH(CH3))2— group or a C15H31-m group (where m=0, 2, 4 or 6), Y is hydrogen or a methyl group and n is a number in the range from 0 to 10, and (c) one or more at least difunctional isocyanates, in which the compounds a), b) and c) are reacted with one another in the equivalent ratios OHa):OHb):NCOc) of 1:(1+x):2(1+y), with the provisos that the following conditions apply: x is a number in the range from 0.05 to 1.2, y is a number in the range from (0.2 to 1.

Abstract: Polyurethanes, suitable as thickeners for aqueous systems, are obtained by reacting (i) one or more hydrophilic polyols containing at least two OH groups and at least two functional groups selected from ether and ester groups, having a molecular weight of at least 300 Daltons; (ii) one or more C8 to C36 Guerbet alcohols, which are produced from monoalcohols having 4 to 18 carbon atoms selected from the group of primary and/or secondary monoalcohols of formula (MA), where (a) the total number of carbon atoms in compounds (MA) is 4 to 18; (b) R1, R2 and R3 are independently hydrogen, or linear, branched or alicyclic, saturated or unsaturated alkyl; (c) optionally, R1 and R2, and/or R1 and R3, and/or R2 and R3 are linked together to form an alicyclic substructure; and (d) compounds (MA) have at least one branch; and (iii) one or more at least difunctional isocyanates.

Abstract: A thickener based on an aqueous preparation of a nonionic, water-dispersible or water-soluble polyurethane is provided, where the polyurethane is obtainable by reacting: (a) one or more hydrophilic polyols containing per molecule at least two OH groups and at least two functional groups selected from ether and ester, the molecular weight being at least 300; (b) one or more hydrophobic compounds containing at least one zerewitinoff-active hydrogen atom per molecule, the molecular weight ranging from about 100 to about 500 with at least one linear or branched, saturated or unsaturated alkyl chain per molecule, the alkyl chain having at least five consecutive carbon atoms and is not linked to a hetero atom; and (c) one or more at least difunctional isocyanates, where the components are reacted in ratios of OHa):ZHb):COc) of 1:(1+x):2(1+y), with the provisos that x is 0.05-1.2 and y is (0.2-1.05)x. A thickener concentrate is also provided.

Abstract: Thickeners based on an aqueous preparation of nonionic water-dispersible or water-soluble polyurethanes comprising constituent units provided by (a) at least one polyfunctional isocyanate; (b) at least one polyether polyol, (c) at least one monofunctional alcohol; and (d) optionally, at least one polyfunctional alcohol, wherein compound (d) contains no functional groups other than the OH groups, and component (c) comprises 2-(n-butyl)-1-octanol. The thickeners are distinguished by an excellent thickening effect, in aqueous dispersions.

Abstract: A method of tackifying an adhesive is provided, the improvement comprising the use of a copolymer consisting of monomer units derived monomers consisting of:(A) 10 to 50% by weight of a terpene with no conjugated double bonds,(B) 20 to 50% by weight of a member selected from the group consisting of olefinically unsaturated monocarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and(C) 40 to 50% by weight of an ester selected from the group consisting of esters and semiesters of olefinically unsaturated monocarboxylic containing 3 to 5 carbon atoms and esters and semiesters of olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms, with the proviso that the sum total of said monomers is 100% by weight.