Abstract: The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

Abstract: An aqueous polyurethane resin dispersion containing a polyurethane resin obtained by reacting (A) a polyurethane prepolymer obtained by reacting (a) a polyisocyanate compound, (b) at least one polyol compound containing a polycarbonate polyol having a number average molecular weight of 400 to 3000, (c) an acidic group-containing polyol compound, and (d) a blocking agent for an isocyanate group, which dissociates at 80 to 180° C., and (B) a chain elongating agent having reactivity with the isocyanate group, being dispersed in an aqueous medium, a sum of a content of urethane bondings and a content of urea bondings is 7 to 18% by weight of solid components, a content of carbonate bondings is 15 to 40% by weight of solid components, and a content of an isocyanate group to which the above-mentioned blocking agent has bonded is 0.2 to 3% by weight of solid components and calculated on the isocyanate group.

Abstract: The present invention relates to a process for the preparation of particularly reactive and low-viscosity reaction products of polyisocyanates which contain activated ethylenically unsaturated groups which react by polymerization under the action of actinic radiation, and the use of these reaction products in coating compositions, and particularly scratch-resistant coatings obtainable therefrom.

Abstract: A urethane adhesive composition includes a first liquid and a second liquid, the first liquid containing a prepolymer obtained by reacting a polyisocyanate and a high-molecular-weight polyol (I), and at least one filler selected from talc and calcium carbonate, and containing 20 parts by mass or more of talc, 0 to 40 parts by mass of calcium carbonate, and 10 parts by mass or more of zeolite based on 100 parts by mass of the polyisocyanate, the high-molecular-weight polyol (I), and the prepolymer in total, the second liquid containing a high-molecular-weight polyol (II) and a low-molecular-weight polyol, the ratio of the number of moles of hydroxyl groups derived from the low-molecular-weight polyol to the total number of moles of hydroxyl groups derived from the high-molecular-weight polyol (I) and the high-molecular-weight polyol (II) being four or more.

Abstract: The invention relates to a coating agent composition comprising an isocyanate-group-containing prepolymer obtained by reacting a polyol comprising a polyoxyalkylene polyol having 2-4 hydroxyl groups on average, an oxyethylene group content of 85-100% by mass based on all oxyalkylene groups (100% by mass), and an arithmetic-average molecular weight of 800-2,500 with an alicyclic isocyanate and/or an aliphatic isocyanate in the presence of an organic acid bismuth salt catalyst, the isocyanate(s) being used in such an amount as to result in an isocyanate index of 150-300. The invention can provide a coating agent composition which forms a coating film or film having moisture permeability, excellent in mechanical properties and yellowing resistance, having laundering durability and resistance to sweat deterioration, and containing no organotin compounds.

Abstract: The invention relates to high-reactivity polyurethane compositions which contain uretdione groups and cure at low baking temperatures, to a process for the preparation and to their use for producing coating materials, especially surface coatings and adhesives, and also plastics.

Abstract: Polymerizable liquid compositions of the polyurethane type, consisting of two components (A) and (B), wherein component (A) contains at least one cyclo-aliphatic diisocyanate monomer or a mixture of one cyclo-aliphatic diisocyanate monomer and a pre-polymer obtained by reaction, in the presence of an acid phosphate ester catalyst, between said cyclo-aliphatic diisocyanate monomer and one or more polyols having two or more hydroxy 1 groups per molecule and a molecular weight ranging from 50 to 2,000 g/mole; the second component (B) contains one or more polyols having a molecular weight ranging from 50 to 2,000 g/mole and a functionality between 2 and 5; in the absence of polyalkoxylated tertiary diamines and organometallic catalysts, said components (A) and (B) being present in a weight ratio which varies from 1:1 to 2:1 and the process for the production of organic glass starting from polymerizable liquid compositions of the polyurethane type.

Abstract: A flushable article such as a wipe that includes a substrate that includes fibers, and a dried binder composition in contact with the fibers, the article (e.g., wipe) being insoluble in water having a pH of no greater than 6, and disintegrating in water having a pH of at least 6.5.

Abstract: The present invention discloses a semicrystalline, thermoplastic polyurethane which is comprised of the reaction product of (1) a hydrophobic polyol, (2) a polyisocyanate, and (3) a linear chain extender containing 5 carbon atoms or 7 to 12 carbon atoms; wherein the hydrophobic polyol has a number average molecular weight which is within the range of about 1,000 to about 4,000; wherein the semicrystalline, thermoplastic polyurethane has a weight average molecular weight which is within the range of 50,000 to 1,000,000; and wherein the semicrystalline, thermoplastic polyurethane has a melting point which is within the range of 80° C. to 150° C. This hydrophobic thermoplastic polyurethane offers a unique array of characteristics that are highly desirable for utilization in manufacturing a variety of products. For instance, it can be used in overmolding soft grips onto consumer products, in adhesives, and in protective coatings.

Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Abstract: Biocompatible macromer compositions are provided including an isocyanate-functional polyalkylene oxide combined with at least one multi-functional isocyanate as a first component, and a multi-amino functional compound possessing multiple primary amines as a second component. The isocyanate-functional polyalkylene oxide has pendant polyalkylene oxide groups. The resulting biocompatible macromer composition can be employed as an adhesive or sealant for medical/surgical uses.

Abstract: The present invention relates to a polyurethaneurea solution having a polyurethaneurea having a structural unit of the formula (I) and terminated with at least one copolymer unit of the group consisting of a polyethylene oxide, a polypropylene oxide, and mixtures thereof.

Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a fluorinated component and an adhesion promoter compound. The adhesion promoter compound can include an alkoxy group, a furfuryl-containing ring structure, and a reactive group.

Abstract: The present invention discloses a method of producing a modified polyimide comprising a polycarbonate, which modified polyimide has excellent electric properties and adhesion as well as excellent heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; and the modified polyimide. Also disclosed are a composition comprising the modified polyimide and used thereof.

Abstract: The present disclosure is directed to an aliphatic isocyanate-based moisture-curable resin. The disclosed resin may include an aliphatic isocyanate functional material and an cycloaliphatic isocyanate functional material. The resin may be used to formulate a coating composition that may exhibit no substantial sag when applied at a wet film thickness of at least 6 mils, and no substantial blistering when cured to a dry film thickness of at least 6 mils.

Abstract: A synthetic polymer has a water-soluble or water-swellable polyurethane backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.

Abstract: [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.

Abstract: A process for continuous manufacturing of moisture-curable polyurethane formulations used as sealants and adhesives. The process is characterized by the fact that the reactive components are introduced independently, and without the need for a prepolymer, to a mixer. Solid or liquid raw materials can be either pre-blended or fed directly to the mixer, a twin-screw extruder, which provides the requisite energy to homogenously mix the raw materials and drive the chemical reaction. The process is designed so that the extruder barrel and screw allow variable feed addition and heat exchange down the length of the machine. This allows various operations to be performed at different points in the extruder, including reaction, dispersive mixing, distributive mixing and devolitization.

Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Abstract: Prepolymers, which are accessible from formamides of low molecular weight di- or triamines (formamide-terminated low molecular weight compounds) and di- or polyisocyanates, of the general formula (II): X—[—N(CHO)—CO—NH—R1—NCO]n??(II) wherein X represents a linear or branched aliphatic, cycloaliphatic, heterocyclic and/or aromatic structural unit having 2 to 40 carbon atoms, and which is optionally further substituted and/or optionally comprises one or more heteroatoms, wherein R1 represents an organic radical which may optionally contain one or more heteroatoms and which may further contain one or more additional free isocyanate groups and/or one or more urethane, biuret, carbodiimide, isocyanurate, allophanate, iminooxadiazinedione and/or uretdione structural units, and wherein n?2; processes for making the same; compositions containing the same; and uses thereof.

Abstract: Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.

Abstract: The present invention concerns a process for realization of polymeric materials with second order nonlinear electro-optical properties comprising the following steps: mixing of a chromophore with nonlinear optical properties with two or three hydroxy groups; isolation of said pure bi- or tri-isocyanate NLO chromophores obtained according to the above step; dissolution of said bi- or tri-isocyanate NLO chromophores obtained according to the above step in one or more isocyanate group not reactive solvents containing reactive substances; coating of a thin layer of said prepolymer mixture on a substrate and evaporation of said not reactive solvents; cross-linking and poling of said thin layer on substrate, by means of heating and application of an electric field; cooling of said thin cross-linked and poled layer at ambient temperature maintaining the applied poling electric field; switching off the poling electric field.

Abstract: A two-component curable solventless adhesive which enables a laminated composite film comprising a barrier layer and a plastic film laminated with each other to maintain excellent appearance and adhesive strength for a long period even after a sterilization treatment at high temperature, and to appropriately adjust a reaction between a base resin and a curing agent during a production of the laminated composite film. The two-component curable solventless adhesive comprises a base resin and a curing agent, wherein the base resin contains a polyol having an acid group and a secondary or tertiary terminal hydroxyl group accounting for 30% or more of the entire terminal hydroxyl groups of the polyol, and the curing agent contains an isocyanate group-terminated urethane prepolymer containing at least an aralkyl polyisocyanate and/or a modified substance thereof as a raw polyisocyanate, and a content of a low molecular weight polyisocyanate is defined.

Abstract: A two part construction sealant or adhesive is provided with the properties of non-sag, low modulus, high elongation, and good paint adhesion. The sealant or adhesive is prepared using at least one of a secondary amine or an acrylate monomer, and a diol, triol and/or tetrol having a nominal weight average molecular weight of between 1,000 and 6,000 in the base component of the formulation, and aromatic diisocyanate monomer or polyisocyanate and an isocyanate terminated prepolymer of aromatic diisocyanate or polyisocyanate and polyol in the activator component, the components of Part A to Part B mixed at a weight ratio of 5:1 to 1.8:1.

Abstract: Water-based coatings having writable-erasable surfaces are provided. The coatings have many desirable attributes. For example, the coatings cure under ambient conditions, have low or no VOC emissions during and upon curing, and have reduced tendency to form ghost images, even after prolonged normal use.

Abstract: The present invention relates to aromatic aldimines, which are based on primary aromatic polyamines, which are solid at room temperature and liquid at room temperature and which have the lowest possible viscosity, hydrolyze with little odor, and can be used as blocked amines in curable compositions, in particular in compositions having one-component and two-component isocyanate groups. Said compositions have a relatively long open time, but cure surprisingly rapidly, said curing occurring without strong odor formation and without bubbling. In addition, the compositions have outstanding mechanical properties after curing, in particular high strength with high ductility, and good resistance to heat and moisture.

Abstract: The present invention relates to a method for producing flexible polyurethane foams, wherein an isocyanate component (component B) is used which comprises polyether carbonate polyol, and to the isocyanate component itself. The invention also provides an NCO-terminated, urethane group-comprising prepolymer obtainable by reaction of one or more polyisocyanates (B1) with one or more polyether carbonate polyols.

Abstract: Reaction products of polyepoxides with amines followed by reaction with polyalkyleneoxide modified and/or polyester-modified and/or polyether-polyester-modified isocyanates give comblike aminic polymers, and their salts. The compounds are useful as wetting and dispersing agents for organic and inorganic pigments, and as fillers for aqueous and solvent-borne systems.

Abstract: A moisture-curable and biodegradable adhesive that includes the reaction product of: (a) an isocyanate component having an average functionality of at least 2; (b) an active hydrogen component having an average functionality greater than 2.1; and (c) an ionic salt component having an average hydroxyl or amino functionality, or combination thereof, of at least 1.

Abstract: The invention relates to hydroxyl-functionalised polyurethane hot melt prepolymers comprising the chemical reaction product of isocyanate-reactive starting materials with at least one isocyanate-containing starting material. Said prepolymers are characterized in that the isocyanate-reactive starting materials of the hydroxyl-functionalised polyurethane hot melt prepolymers have a polypropylene glycol with a functionality higher than two and a number-average molar mass higher than or equal to 3,000 g/mol, a polypropylene glycol with a functionality less than or equal to two and a number-average molar mass less than or equal to 1,000 g/mol, and a chain lengthener with a functionality less than or equal to 500 g/mol, and the isocyanate-containing starting material of the hydroxyl-functionalised polyurethane hot melt prepolymer has an aliphatic or alicyclic diisocyanate.

Abstract: Proposed is a process for preparing a reactive polyurethane composition that is characterized in that in a first process stage, from an isocyanate-reactive polymer or mixture of isocyanate-reactive polymers with a fraction of at least 90%, preferably at least 95%, more preferably at least 99% by weight of linear molecules, by reaction with a polyisocyanate having a molecular weight <500, in a molar deficit of the isocyanate groups of the polyisocyanate relative to the isocyanate-reactive end groups of the polymer or mixture of polymers, a monomer-free thermoplastic polyurethane is prepared which in a second process stage is reacted with a low-monomer-content, isocyanate-terminal prepolymer, in a molar ratio of the isocyanate-reactive end groups of the thermoplastic polyurethane to the isocyanate groups of the prepolymer of 1:1.1 to 1:5, to give the isocyanate-reactive polyurethane composition.

Abstract: The present invention relates generally to polyurethane compositions; and more preferably to thermoplastic polyurethane compositions. In one embodiment, the polyurethane compositions of the present invention have high moisture vapor transmission rates and are suitable for film applications (e.g., breathable films). In one embodiment, the polyurethane compositions of the present invention are prepared from the reaction of a mixed polyol component, a polyisocyanate component, a chain extender, and optionally at least one suitable catalyst, wherein the mixed polyol component is formed by a combination of one or more poly(ethylene oxide) polyols and one or more copolymer polyols, where the resulting mixed polyol component comprises from about 3 to about 30 weight percent of a copolymer polyol and about 70 to 97 weight percent of poly(ethylene oxide) polyol.

Abstract: Silylated polyurethanes can be manufactured by reacting at least one polyol compound, having a molecular weight from 4000 to 20,000 dalton, with a diisocyanate, with a stoichiometric excess of the diisocyanate compound with respect to the polyol compound or compounds, with the result that a polyurethane prepolymer that is isocyanate-terminated is formed; and by subsequently reacting the polyurethane prepolymer with one or more OH-terminated silanes of formula (1) to yield a polyurethane having predominantly terminal alkoxysilyl groups. In formula (1), m is equal to 0, 1, or 2, R1 is an alkyl residue having 1 to 4 carbon atoms, R2 is an alkyl residue having 1 to 4 carbon atoms, R3 is a divalent organic residue having 1 to 12 atoms, selected from C, N, S, and/or O, in the chain, but by preference exclusively carbon atoms, R4 is a hydrogen atom or an alkyl residue having 1 to 10 carbon atoms, and R is a difunctional organic group, preferably a linear or branched alkyl group having 1 to 6 carbon atoms.

Abstract: Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a fluorinated poly(amide-imide) copolymer.

Abstract: Prepolymers are prepared by a reaction of a polyisocyanate and a hydroxylmethyl containing polyester polyol derived from a fatty acid. The prepolymers can be prepared having isocyanate, hydroxyl, or a variety of other reactive functional groups. The prepolymers are useful in making polyurethanes and other polymers, or a crosslinking agents.

Abstract: By using an amine hydrochloride represented by the formula (1) as a catalyst, a polythiourethane resin which is suitably used for a transparent resin for optical use, can be obtained without using an organotin compound which has been conventionally used as a catalyst for polythiourethane resins and without being affected by the acidity of an additive: wherein R1, R2 and R3 independently represent a monovalent or higher valent linear aliphatic, branched aliphatic, cyclic aliphatic or aromatic organic residue which may have a hydroxyl group or an amino group; and R1, R2 and R3 may be arbitrarily bonded to each other to form a ring.

Abstract: A method of preparing an optical material by polymerizing a resin composition including a thiol group-containing compound and an isocyanate group-containing compound, particularly, a method of preparing a high-quality urethane-based optical material using a universal polyisocyanate compound. According to one aspect, a resin composition including a polythiol compound and a widely available polyisocyanate compound, as main components, and having a moisture content of 300 to 3,000 ppm is template-polymerized to prepare the optical material. A colorless, transparent, and high-quality urethane-based optical material may be efficiently prepared in high yield using a low-cost and widely available isocyanate compound through template-polymerization using a tape while minimizing generation of white tape residues and foaming.

Abstract: Process for producing a chemically crosslinked polyurethane film, comprising the steps of: A) chemically reacting a mixture comprising two or more polyols with one or more polyisocyanates, at least one of the polyols or at least one of the polyisocyanates comprising molecules having a functionality of three or more, to form hydroxyl-functionalized polyurethane hotmelt prepolymer, B) reacting the hydroxyl-functionalized polyurethane hotmelt prepolymer with one or more polyisocyanates in a continuously operating mixing assembly, C) coating the melt emerging from the mixing assembly onto an incoming web-form material or between two incoming web-form materials, in the course of which the reaction started in step B) continues.

Abstract: Moisture curable reactive hot melt adhesive compositions are prepared using a novel two-step polymerization process. Resulting adhesives have improved green strength.

Abstract: Disclosed is a thermosetting resin composition including; (A) a carboxyl group-containing polyurethane prepared by using (a) a polyisocyanate compound (b) polyol compounds (c) a carboxyl group-containing dihydroxy compound as raw materials, (B) a curing agent, wherein the polyol compounds (b) are one or more kinds of polyol compound(s) selected from Group (I) and one or more kinds of polyol compound(s) selected from Group (II); Group I: polycarbonate polyol, polyether polyol, polyester polyol, and polylactone polyol, Group II: polybutadiene polyol, polysilicone having terminal hydroxyl groups, and such a polyol that has 18 to 72 carbon atoms and oxygen atoms present only in hydroxyl groups. The thermosetting resin composition can give a protection film for flexible printed circuits that has excellent long-term reliability of electric insulation, flexibility, and low warpage from curing shrinkage, and particularly low tackiness.

Abstract: Methods of producing a hybrid petro-plant oil polyol having a high bio-content by coupling a petro-chemical polyol with a plant oil based polyol is provided, including coupling an intermediate petro-polyol prepolymer with a plant oil polyol so as to synthesize a hybrid petro-plant oil polyol having a high bio-content and a hydroxyl number of between about 50 and 60.

Abstract: The invention relates to high-reactivity polyurethane compositions containing uretdione groups and intended for use in the plastics sector.

Abstract: Polyester resins (C) of the invention have a practically sufficient high molecular weight and a high crystallinity and have an amide group in the molecular chain. Processes for producing the polyester resins are also disclosed. In detail, the polyester resins (C) have a practically sufficient high molecular weight and a high crystallinity and have a biodegradable amide group in the molecular chain. Processes for producing the polyester resins are also disclosed. The polyester resins (C) are obtained by reacting an aliphatic polyester resin (A) and a polyisocyanate compound (B) in the presence of an amidation catalyst and contain a specific structural unit.

Abstract: The present invention relates to a radiation-curable composition having a refractive index less than 1.40 comprising (1) a curable perfluoropolyether oligomer having a structural formula selected from the group consisting of: and wherein R represents a hydrogen atom or a methyl group, wherein A represents a straight chained or branched alkylene group, wherein m represents an integer from 1 to 4, wherein the integers represented by m within individual —((CF2)m—O)n— repeat units can be the same or different, and wherein n represents an integer from 1 to 20; (2) a diluent; (3) a photo-initiator; and (4) an adhesion promoter; wherein the radiation-curable composition is free of compounds containing —CF3 groups.

Abstract: New associative polyurethanes which are manufactured with cardanol which is potentially oxyethylated. Use of these polyurethanes as thickening agents for aqueous formulations.

Abstract: A thermosensitive light-adjusting material is formed by reacting 18-84% polymer polyols and/or terminal hydroxyl-containing polymers which are formed by reacting polymer polyols and diisocyanate, with 15-80% terminal hydroxy-containing ethylenically unsaturated monomers through light or heat polymerization reaction. A process for preparing the thermosensitive light-adjusting material and an optical device comprising thereof. The light-adjusting ability is high, the light-adjusting range is broad, and mechanical capability is good. The preparation method is simple, short-circle, and high effective, so it can be applied in industry, furthermore, because of no organic solvents, the method's advantages are low cost and without pollution.

Abstract: Rollers for high speed printers and paper handling devices are fabricated by reacting polymeric diphenylmethane diisocyanate with a polyester polyol and/or polyester polyamine and an optional extender, together with a metal salt, a catalyst, and one or more other optional additives, including a liquid conductive additive. The resulting rollers provide a hardness as low as 15 A on cube, a resistivity as low as 5E4 ?·cm, a compression set as low as 0.5% at room temperature and as low as 3% at 157° F., and low tackiness as low as 13 g/cm of adhesion force.

Abstract: A process for the preparation of thermoplastic polyurethane by reacting (a) isocyanates with (b) compounds reactive toward isocyanates and having a molecular weight (Mw) of from 500 to 10 000 g/mol and (c) chain extenders having a molecular weight of from 50 to 499 g/mol, if appropriate in the presence of (d) catalysts and/or (e) conventional additives, wherein the chain extender mixture consisting of a main chain extender (c1) and one or more co-chain extenders (c2) is used and the thermoplastic polyurethane prepared has a rigid phase fraction of greater than 0.40, the rigid phase fraction being defined by the following formula: rigid ? ? phase ? ? fraction = { ? x = 1 k ? [ ( m KVx / M KVx ) * M Iso + m KVx ] } / m ges with the following meanings: MKVx: molar mass of the chain extender x in g/mol mKVx: mass of the chain extender x in g MIso: molar mass of the isocyanate used in g/mol mges: total mass of all starting materials in g k: number of chain extenders.

Abstract: The present disclosure provides compositions having reduced viscosity which may be used as adhesives or tissue sealants, and includes methods for speeding the cure rate of such compositions.

Abstract: The invention relates to moisture-curing polyisocyanate mixtures, to a process for their preparation and to their use as binders in lacquers, coatings, adhesives and sealing materials.