Abstract: A method of applying an adhesive to a substrate is disclosed which utilizes a hydrophilic, high molecular weight, nonionic polyurethane adhesive. The polyurethane adhesive is soluble in water and a 1% by weight solution of the adhesive in water at 20% has a specific viscosity of at least 0.4.

Abstract: Process for preparing a polyurethane material having no glass transition temperature below 25 C, which process involves using a polyoxyethylene polyoxypropylene polyol having a high oxyethylene content and a polyisocyanate having a high 4,4′-diphenylmethane diisocyanate (4,4′-MDI) content, wherein the reaction is conducted at an isocyanate index of 80 to 140.

Abstract: A moisture curable hot melt sealant composition that includes polyurethane prepolymer having at least one of isocyanate functional groups and silane functional groups, reactive plasticizer capable of reacting with at least one of the polyurethane prepolymer and itself, and thermoplastic polymer.

Abstract: The present invention relates to a composition and use of polymeric urethane ester quats as an active ingredient for skin and hair contacting personal care compositions and products related thereto. These compositions are generally produced by the reaction of a trialkanolamine with a hydroxy fatty acid to produce a trialkanolamine fatty acid ester, which is then polymerized with a diisocyanate and in preferred embodiments, further reacted with a quaternizing agent, to produce preferred quaternized compositions according to the present invention.

Abstract: A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler, a surfactant, a colorant, and a mold-release agent. A lightweight tire support can be prepared from a polyurethane-polymer composition by, for example, reaction injection molding. Such a tire support desirably has temperature stability and load-bearing capability.

Abstract: The present invention relates to a mixture that contains (i) at least one isocyanate and (ii) at least one organic and/or inorganic acid anhydride.

Abstract: The invention relates to a method of preparing a polyisocyanate with at least one uretdione group by oligomerizing part of the isocyanate groups of isophorone diisocyanate in the presence of a catalyst which accelerates the dimerization of isocyanate groups, wherein the oligomerization catalyst comprises a saline compound comprising from 10 to 100 wt. % of 1,2,3- and/or 1,2,4-triazolate structures (calculated as C2N3; molecular weight=66) in the anion, and the products prepared by this method.

Abstract: The invention concerns a novel aqueous composition that can be hardened physically, thermally and/or with actinic radiation, containing a compound of general formula (I): X[NH—C(═O)—NH—Y—NH—C(═O)—OR]2 having at least one urea and urethane group, wherein the variables have the following meaning: R represents identical or different polyalkylene glycol ether radicals; X represents a bivalent substituted or unsubstituted arylene radical; Y represents identical bivalent substituted or unsubstituted arylene radicals, which are the same as or different from radical X or different bivalent substituted or unsubstituted arylene radicals of which none or one is identical to radical X. The invention also concerns the utilization of said compound for the production of novel aqueous coating materials, adhesives and sealants that can be hardened physically, thermally or thermally and with actinic radiation and their derivatives.

Abstract: A polymerizable solid aliphatic polyurethane containing olefinically unsaturated double bonds, having a very narrow melting range within the temperature range from 40 to 200° C., which is preparable from A) at least one linear aliphatic diisocyanate, B) at least one aliphatic compound containing at least two isocyanate-reactive functional groups and/or water, and C) at least one olefinically unsaturated compound containing an isocyanate-reactive functional group, and its use as a powder coating material or for preparing powder coating materials.

Abstract: The polyisocyanate polyaddition products comprise hydrophobic compounds plus at least one further compound selected from the group consisting of: (i) organic, cyclic compounds having a molecular weight of from 200 to 3000 g/mol, (ii) salts of metals of transition groups I, II and/or VIII, (iii) organic and/or inorganic acid anhydrides, (iv) cyclic sulfonic esters and/or sulfones, (v) lactones, lactams and/or cyclic esters and/or (vi) &agr;,&bgr;-unsaturated carboxylic acids, &agr;,&bgr;-unsaturated carboxylic acid derivatives, &agr;,&bgr;-unsaturated ketones and/or &agr;,&bgr;-unsaturated aldehydes.

Abstract: This invention relates to the application of fluorinated urethane compositions to stone in order to protect the stone from the deleterious effects of water and pollution.

Abstract: The present invention relates to a process for the production of molding compositions, which can easily be released from the mold. These molding compositions comprise thermoplastic polyurethanes with a hardness of 45 to 65 Shore A, with good mechanical properties, with low shrinkage and good low temperature properties.

Abstract: A storage-stable moisture-curing one-component fire-retardant polyurethane system, useful as adhesive, sealant or coating material, comprising at least one hydrated mineral having a water-content of less than 0.1% and being treated with a moisture-reactive compound, and at least one binder on isocyanate basis. Such PU-systems preferably further comprise at least one phosphorus-containing compound, most preferably a phosphorus-containing plasticizer, which is preferably halogen-free. The binder on isocyanate basis has preferably an isocyanate content in the range of from 0.01 to 10% by weight referred to the total weight of the system.

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: A polymer comprising the addition reaction product of a polyisocyanate having a functionality of from 2 to 10 and a succinylpolyether having a C6-30-alk(en)yl group and at least one group which is capable of reacting with the polyisocyanate and where the number of recurring ethyleneoxy groups in the polyether is from 4 to 800.

Abstract: The present invention relates to polyurethane cast elastomers which are prepared from higher molecular weight polyhydroxy compounds, durene diisocyanate and low molecular weight chain-lengthening and/or crosslinking agents. These elastomers are particularly useful for the production of moldings exposed to high mechanical stresses.

Abstract: The invention concerns a high-frequency weldable and low-temperature flexible polymer mixture containing a copolymer of ethylene with a polar comonomer selected from the group of vinyl esters of saturated C2-C8 carboxylic acids, C1-C12 alkyl acrylates, and/or methacrylates, with the comonomer content being less than approximately 25% by weight, a terpolymer and/or copolymer of ethylene, propylene, and/or butylene, and a polar comonomer, with the comonomer content being less than approximately 25% by weight, and a thermoplastic polyolefin. The invention also provides a sheet or a molded piece containing the polymer mixture according to the invention and use thereof. Articles made with the polymer exhibit a high degree of low-temperature flexibility and favorable thermal stability together with sufficient high-frequency weldability and favorable welding seam strength.

Abstract: The invention is directed to a novel biomedical polyurethane based on diisocyanatae linked polyester polymer and diol components, said diol component having a uniform block-length.

Abstract: The invention provides an improved spandex that is prepared from a polyurethane that is the reaction product of organic diisocyanates, polymeric glycols, and polyols that have an aromatic functionality, such as alkoxylated phenols. The spandex has improved resistance to high temperature dyeing with minimal loss of physical properties, such as elastic recovery.

Abstract: Improvements in tuft bind and/or elongation of tufted carpet may be achieved by selecting, as components of a tuft bind adhesive, one or more of: i) a polyol component comprising a low or ultra-low unsaturation polyoxypropylene polyol optionally containing up to 30 weight percent oxyethylene moieties, and ii) a chain extender component comprising 2-methyl-1,3-propanediol.