Abstract: Derivatized solid epoxy resins of the formula (I), which are outstandingly suitable as impact modifiers; and compositions which include such derivatized solid epoxy resins and are outstandingly suitable as one-component heat-curable adhesives, and as structural foams which have a high impact resistance and high mechanical stability.

Abstract: Stable NCO prepolymers are produced from polyisocyanates having a melting point greater than 70° C., preferably, naphthalene diisocyanate, having advantageous physical properties. An important feature of the process of the present invention is the rapid cooling of the prepolymer. The process of the present invention may be carried out on a continuous or batch basis. The prepolymers of the present invention are particularly suitable for the production of cast polyurethane elastomers.

Abstract: Reaction products prepared from reactants including: (a) at least one compound of structural Formula (I): wherein R1 is selected from aryl and heteroaryl; X is selected from a direct bond, —O—, —S—, —NH—, alkylene, cycloalkylene, heterocyclylene, arylene, alkarylene, and heteroarylene; Y is a substituted alkylene group having at least two contiguous carbon atoms and which can be interrupted by one or more —O—, —S—, or —NH— moieties as defined herein, wherein the alkylene group of Y has substituents independently selected from —OH, —NH2, —SH, cycloalkyl, heterocyclyl, aryl, and heteroaryl, or two hydrogen atoms on the same carbon atom of Y are replaced by carbonyl, and wherein at least two substituents of Y are each independently selected from —OH, —NH2, and —SH, as defined herein; and (b) at least one isocyanate functional material.

Abstract: A silicone-containing composition comprises the reaction product of a first component and an excess of an isocyanate component relative to the first component to form an isocyanated intermediary. The first component is selected from one of a polysiloxane and a silicone resin. The first component includes a carbon-bonded functional group selected from one of a hydroxyl group and an amine group. The isocyanate component is reactive with the carbon-bonded functional group of the first component. The isocyanated intermediary includes a plurality of isocyanate functional groups. The silicone-containing composition comprises the further reaction product of a second component, which is selected from the other of the polysiloxane and the silicone resin. The second component includes a plurality of carbon-bonded functional groups reactive with the isocyanate functional groups of the isocyanated intermediary for preparing the silicone-containing composition.

Abstract: A liquid pigment dispersion is disclosed. The dispersion comprises a pigment dispersed in a blend of two or more active hydrogen-containing materials that together have a freezing point that is room temperature or below. The pigment remains dispersed in the blend, even if the dispersion is subjected to freezing and thawing. A curative blend comprising at least two active hydrogen-containing materials, which is liquid at room temperature, is also disclosed. The dispersions and curative blends of the present invention can be solvent-free. Resins and prepolymers comprising the curative blends of the invention, either pigmented or unpigmented, are also disclosed.

Abstract: The present invention relates to organic polymer porous materials, and in particular, to an organic polymer porous material that functions as a reusable insoluble solid catalyst and a method for producing the same. The organic polymer porous material of the present invention is characteristic in that the amount of immobilized bases is high and the specific surface area is large. The object has been achieved by an organic polymer porous material including a polymer (PA) obtained by polymerizing a polymerizable composition (A) containing a compound (a) obtained by reacting a dendrimer (a1) having at least an amino group as a reactive functional group or a polyethyleneimine (a2) having at least an amino group as a reactive functional group with a compound (a3) having a vinyl group and a group that can react with the reactive functional group.

Abstract: Isocyanate mixtures comprising: (a) NCO prepolymers having an NCO content of 1.5 to 18 wt. %; and (b) 1 to 40 wt. % of monomeric 2,2?-diisocyanatodiphenylmethane, based on the isocyanate mixture; wherein the isocyanate mixture has a total NCO content of from 2 to 22 wt. %; polyisocyanate polyaddition products prepared therefrom; and methods of making the same.

Abstract: An optical resin composition with superior impact resistance and a method for producing an optical lens from the composition are disclosed. In one embodiment, the optical resin composition for a plastic optical lens has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency. The optical lens produced from the composition exhibits superior impact resistance even after multi-coating. The optical resin composition with superior impact resistance has a solid refractive index (nD) of about 1.53 to about 1.57, an Abbe number of about 35 to about 48, a liquid specific gravity of about 0.97 to about 1.25 and a solid specific gravity of about 1.10 to about 1.35, by which the composition comprises a mixture of isophorone diisocyanate and hexamethylene diisocyanate, pentaerythritol tetrakis(3-mercaptopropionate), a UV absorber, a release agent and a polymerization initiator.

Abstract: A flexible polyurethane foam is obtained by making a material containing polyols, a cross-linking agent and a polyisocyanate compound react in the presence of a catalyst, a blowing agent and an auxiliary blowing agent. At this time, the isocyanate index of the polyisocyanate compound is set to 110 to 120. Preferably, a polyol of which the hydroxyl value is 250 mg KOH/g to 650 mg KOH/g and of which the molecular weight is 150 to 500 is used as the cross-linking agent, and concretely, polyethylene glycol can be used. A liquefied carbon dioxide is used as the auxiliary blowing agent with an amount mixed in of 1.5 mass parts to 6.0 mass parts relative to 100 mass parts of the polyols. The load required for compressing to 25% of the initial thickness is 30 N to 70 N, and thus, the flexible polyurethane foam has a low hardness.

Abstract: The present invention provides two methods for synthesizing novel titania-polyurethane (nTiO2-PU) nanocomposites for self-cleaning coatings, one a polymer functionalization method (“grafting to”) and the other, a monomer functionalization method (“grafting from”). Here, 2,2 bis(hydroxymethyl) propionic acid (HMPA) was used as the coordination agent, which was reacted with n-TiO2 (50:50 anatase/rutile) to form nTiO2-HMPA, then polymerized in the monomer functionalization method. In the polymer functionalization method, HMPA was reacted with a pre-polymer to form the PU, and then subsequently reacted with n-TiO2 to form the polymer nanocomposite. The photocatalytic cleanability of the nanocomposites was investigated when exposed to ultraviolet radiation using additional unreacted HMPA or stearic acid as the model “dirt” compounds. Nanocomposites prepared using both strategies showed similar self-cleaning behavior, although the monomer technique gave less substrate degradation.

Abstract: The invention relates to a method for bonding metal or plastic substrates, in which the substrate is freed from adhering impurities, a dual-component polyurethane adhesive is directly applied onto at least one substrate without prior application of a primer and the substrates are joined and cured. According to the invention, the dual-component polyurethane adhesive is composed of a component A, containing 1 to 98% by weight with reference to the component A of an oleochemic polyol, 1 to 10% by weight of at least one three-, four- or five-functional polyol with a molecular weight of 90 to 750 g/mol, 2.5 to 60% by weight of at least on aldehyde resin, keton resin and/or keton/aldehyde resin with a molecular weight of 250 to 25000 g/mol, and 0 to 70% by weight of other additives and a component B, containing at least one polyisocyanate, the NCO/OH ratio of the isocyanate component to the polyol component ranging between 1.0 and 2.0:1.

Abstract: There is disclosed a process for hydroxylating vegetable oils to create polyols suitable for use in polymer processes, particularly polyurethane processes. The process includes contacting a vegetable oil with hydrogen peroxide and an organic acid having 1-3 carbon atoms under conditions sufficient to oxidize carbon to carbon double bonds found in the vegetable oil. There is also disclosed a vegetable oil based polyol having an acid number of 2.0 mg KOH/g or less. The polyol contains 0.1% w/w or less water, 0.1% w/w or less of the organic acid used to prepare the polyol, and triglyceride groups having fatty acid moieties ranging from C16 to C18. The fatty acid moieties contain pendant carboxylate groups having from 1 to 3 carbon atoms.

Abstract: The invention is a composition comprising a) one or more prepolymers having on average three or more aliphatic isocyanate groups and further containing alkoxysilane groups; b) one or more aromatic polyisocyanates; c) one or more compounds having at least one heterocyclic ring which hydrolyzes when exposed to moisture to form at least one isocyanate reactive group; d) one or more solvents; and e) one or more amine and/or organometallic polyurethane catalysts; wherein the ratio of aromatic isocyanate groups to aliphatic isocyanate groups in the composition is from about 0.5:1.0 to about 1.5:1.0, preferably about 0.9:1.0 to about 1.5:1.0, and the equivalent ratio of isocyanate groups to isocyanate reactive groups derivable from the one or more compounds having at least one hydrolyzable heterocylic ring is from about 0.8:1.0 to about 5.3:1.0, and most preferably about 1.5:1.0 to about 1.7:1.0.

Abstract: An ordered structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

Abstract: This invention provides chain extender compositions. These compositions comprise (i) an aliphatic secondary diamine, and (ii) a component selected from the group consisting of: (a) a cycloaliphatic primary diamine; (b) an aliphatic secondary diamine; (c) an aliphatic secondary diamine and an aliphatic primary diamine; (d) an aliphatic diimine; and (e) a combination of any two or more of (a) through (d), with the proviso that when (ii) is (a), (i) is a noncyclic aliphatic secondary diamine. Processes for producing polyurethanes, polyureas, and polyurea-urethanes are also provided.

Abstract: An adhesive composition for use in adhering insulation panels to roofing substrates and roofing membranes to the insulation panels include two components that are mixed prior to application on the roofing substrate. The first component may include a renewable polyol and catalyst. The renewable polyol is selected from any non-petroleum based polyol that is derived from a renewable source. The second component includes isocyanate, and may also include a polyol and a catalyst. The isocyanate and the polyol may each be any non-petroleum based isocyanate or polyol that is derived from a renewable source.

Abstract: Mixed polycycloaliphatic amines (MPCA) and alkylates thereof (MPCA alkylates), methods for making mixed polycycloaliphatic MPCA amines and MPCA alkylates thereof, as well as polymeric compositions, such as spray-applied polyurea coating compositions, comprising said mixed amines MPCA and MPCA alkylates thereof are described herein. In one embodiment, the polymeric composition comprises an isocyanate component, and a resin component comprising an organic compound having the following Formula I: where R1, R2 and R3 are each independently selected from a hydrogen atom, an alkyl group comprising from 1 to 20 carbon atoms, an aryl group comprising from 3 to 12 carbon atoms, an aralkyl group comprising from 3 to 12 carbon atoms and combinations thereof, provided that there is at least one alkyl group within Formula I, and X is a methylene bridged polycycloaliphatic amine (MPCA).

Abstract: A flexible material that comprises one or more types of polymers and may be used for drawing surface-adhesive rules having a pre-defined cross-section profile. Wherein the flexible material has attribute to reserve a shape of a profile of an orifice through which it is deposited from.

Abstract: A process for preparing polyurethane carpet backings uses a filled polyurethane-forming composition that contains a mixture of certain metal acetylacetonate and sulfur-containing organotin catalysts. The mixture of catalysts is particularly beneficial in instances where the composition is processed at temperatures of above 30 to about 500 C, as long pot life is provided together with a rapid thermally-induced cure.

Abstract: Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.

Abstract: An object of the invention is to provide carboxyl group-containing polyurethanes that have small curing warpage and can give cured products having excellent electrical insulating properties and flexibility, curable compositions that contain the carboxyl group-containing polyurethane and can give cured products having good electrical insulating properties, cured products obtained from the compositions, flexible circuit boards covered with the cured products, and processes for manufacturing flexible circuit boards. The carboxyl group-containing polyurethane is obtainable from materials including a (poly)carbonate polyol (a) that includes an organic residue derived from a dimer diol, a polyisocyanate (b) and a carboxyl group-containing polyol (c).

Abstract: The invention relates to thermoplastic polyurethanes (hereinafter TPUs) suitable for the production of optical conductors, to a process for their production, and also to optical conductors based on TPUs.

Abstract: An object of the invention is to provide carboxyl group-containing polyurethanes that have small curing warpage and can give cured products having excellent electrical insulating properties and flexibility, curable compositions that contain the carboxyl group-containing polyurethane and can give cured products having good electrical insulating properties, cured products obtained from the compositions, flexible circuit boards covered with the cured products, and processes for manufacturing flexible circuit boards. The carboxyl group-containing polyurethane is obtainable from materials including a (poly)carbonate polyol (a), a polyisocyanate (b) and a carboxyl group-containing polyol (c). The (poly) carbonate polyol includes an organic residue derived from a dimer diol and an organic residue derived from a polyol having a C10-20 alicyclic structure.

Abstract: The present invention relates to aqueous non-ionically hydrophilised binding-agent dispersions based on polyurethane ureas with terminal polyethylene-oxide groups, to the preparation thereof, and to the use thereof for producing coatings.

Abstract: The present invention relates to a process for preparing pentamethylene 1,5-diisocyanate, to pentamethylene 1,5-diisocyanate prepared in this way and to the use thereof.

Abstract: Catalysts, which are free of tin, are described for the reaction between an isocyanate and an alcohol, which is a key step for preparing polyurethane polymers.

Abstract: The invention relates to a biodegradable polymer comprising a plurality of releasable bioactive moieties, the releasable bioactive moieties being pendant from and covalently bonded to the biodegradable polymer backbone, wherein the biodegradable polymer backbone is formed from monomeric units that are each coupled via a biodegradable moiety, and wherein the bioactive moieties are capable of being released at a rate equal to or faster than the rate of biodegradation of the polymer backbone.

Abstract: The invention relates to a crosslinkable polymer binder comprising a polyurethane macromer and grafted thereon a vinyl polymer, to an aqueous dispersion comprising said crosslinkable polymer binder and to a process for the manufacture of said crosslinkable polymer binder and said aqueous dispersion thereof. The crosslinkable polymer binder can be used in coating compositions or adhesives.

Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.

Abstract: The present invention provides an electrostatic discharge protector capable of taking measures for electrostatic discharge against electronic wiring boards having various designs freely, simply and easily, having excellent accuracy of regulating an operating voltage and capable of being downsized and decreased on its cost, and also provides a resin composition for a discharge gap capable of preparing the electrostatic discharge protector. The resin composition for filling a discharge gap of an electrostatic discharge protector comprises a resin having a urethane structure represented by the formula (1): wherein plural R's are each independently an alkylene group of 1 to 18 carbon atoms, X is a bivalent organic group and m and n are each independently an integer of 1 to 20. The electrostatic discharge protector is obtainable by filling the discharge gap with the resin composition. The discharge gap has a width of 2 to 10 ?m.

Abstract: Aqueous polyurethane dispersion are disclosed where the dispersions contain from 5 to 70 weight percent polyurethane solids wherein the solids are obtained from at least one isocyanate terminated prepolymer prepared by reacting (a) a polyol or polyol blend having a mean average equivalent weight of 200 to 2,000; and (b) at least one polyisocyanate where the prepolymer is dispersed in water; optionally in the presence of (c) one or more stabilizers; or (d) one or more amine chain extenders or both; wherein the prepolymers have an isocyanate (NCO) content of from 2 to 40 weight percent and the polyol or polyol blend (a) contains at least 15 weight percent of a polyester based on a polycarboxylic acid or lactone component and a glycol component, wherein the glycol component contains isomers of 1,3- and 1,4-cyclohexanedimethanol (1,3-/1,4-CHDM) where the ratio of the 1,3-/1,4-isomers is from 35:65 to 65:35.

Abstract: The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures which are characterized by a low color number and which contain carbodiimide (CD) and/or uretonimine (UI) groups. This invention also relates to the isocyanate mixtures obtained by this process, to their use for the preparation of blends with further isocyanates, and to the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams from these isocyanate mixtures.

Abstract: Disclosed is an internal mold release agent for the production of polythiourethane optical materials, which is obtained by mixing an acidic phosphate ester compound and at least one metal selected from the group consisting of Zn, Cu, Fe, Ga, Bi, Al and Zr. The internal mold release agent for the production of polythiourethane optical materials contains the metal in an amount of 0.01 to 20 weight %.

Abstract: A two-component solvent-free polyurethane laminating adhesive for flexible packaging, including a First Component and a Second Component is provided. The First Component, which acts as a resin, includes a first vegetable oil based Polyol A in an amount from 20 to 40 weight percent, a second vegetable oil based Polyol B in an amount from 0.5 to 5 weight percent, and a Polyisocyanate C in an amount from 60 to 74 weight percent. The Second Component, which acts as a hardener, includes a first vegetable oil based Polyol A in an amount from 87 to 99 weight percent, and a Polyol E in an amount from 0.5 to 5 weight percent. The first vegetable oil based Polyol A is preferably a hydroxylated castor oil, and the second vegetable oil based Polyol B is preferably hydroxylated linseed oil.

Abstract: The present invention provides polythiol oligomer formed by the reaction of at least two or more different dienes and at least one or more dithiol wherein stoichiometric ratio of the sum of the number of equivalents of all polythiols to the sum of the number of equivalents of all dienes used to form the polythiol oligomer is greater than 1.0:1.0; and wherein the two or more different dienes comprise (a) at least one non-cyclic diene and at least one cyclic diene; or (b) at least one aromatic ring-containing diene and at least one non-aromatic cyclic diene; or (c) at least one non-aromatic monocyclic diene and at least one non-aromatic polycyclic diene; Sulfur-containing polyurethane of the present invention can be prepared by combining polyisocyanate, polyisothiocyanate, or mixture thereof; the polythiol oligomer described above; and active hydrogen-containing material.

Abstract: A composition that includes aldimines of Formula (I). The composition can be a two-component polyurethane composition. The composition can have a long open time, but build up an early strength quickly, and in the cured state can have high tensile strength and a high modulus of elasticity. The composition can be odorless or at least low-odor before, during and after curing.

Abstract: The present invention aims to improve spin performance and abrasion resistance for a golf ball having a cover using a nonionic polyurethane as a resin component. The golf ball of the present invention is a golf ball including a core and a cover covering the core and in which the cover contains a nonionic polyurethane as a resin component and the nonionic polyurethane has a hard segment content of 24.5% to 34.7% by mass.

Abstract: A dendron with hydrophobic functional of end group, a polyurethane with the dendron, and producing methods thereof are disclosed. The dendron with hydrophobic functional of end group in the polyurethane systems, and the honeycomb-like structure thin films were obtained by a breath-figure process. The structures of dendron and dendritic side-chain polyurethanes are respectively expressed in the following. Therein, the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives.

Abstract: In general, the invention provides curable resin compositions that may be used to rebuild insulation and/or to provide environmental protection for cable splices, potted articles, and the like. The curable resin compositions can be curable at room temperature. The components used to form and cure the resin compositions may be provided in two or more parts. In specific embodiments, the invention provides curable resin compositions having anhydride, polyol, epoxy, and urethane components.

Abstract: The water retention agents according to the invention are outstandingly suitable as additives in construction chemistry systems and in the development, exploitation and completion of underground mineral oil and natural gas deposits and in deep wells, their effect being particularly advantageous at increased temperatures and because of their lack of influence on the rheological properties of the well slurries.

Abstract: A hyper-branched polymer, which is a product obtained by performing condensation polymerization reaction of a hyper-branched polymer composition including a diisocyanate-based compound and a dihydroxyamine-based compound, a cross-linked hyper-branched polymer, an electrode and electrolyte membrane for a fuel cell including the hyper-branched polymer or the cross-linked hyper-branched polymer, and a fuel cell including the electrode and the electrolyte membrane.

Abstract: A polymeric material may be prepared by reacting a mixture comprising an amino functional polyorganosiloxane, polyisocyanate, and polyol. The polyol may comprise a hydroxy-functional poly(meth)acrylate. The polymeric material may be used as a coating for a substrate and may inhibit fouling on a surface exposed to aquatic conditions.

Abstract: The invention relates to a process for extruding plastic compositions, in particular polymer melts and mixtures of polymer melts, above all thermoplastics and elastomers, particularly preferably polycarbonate and polycarbonate blends, also with the incorporation of other substances such as for example solids, liquids, gases or other polymers or other polymer blends with improved optical characteristics, with the assistance of a multi-screw extruder with specific screw geometries.

Abstract: Compositions for forming molded articles, particularly, shells for automotive applications are made up of melt blends of aliphatic thermoplastic urethane elastomer and an olefin-containing block copolymer crosslinked to a gel content of from 5 to 95%. These compositions may be blended to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements.

Abstract: Disclosed herein are a nanocrystal-polydimethylsiloxane composite and a method for preparing the same. More specifically, provided are a nanocrystal-polydimethylsiloxane composite in which one or more polydimethylsiloxane derivatives having urea cross-links are bound to the surface of a nanocrystal, and a method for preparing the same. The nanocrystal-polydimethylsiloxane composite comprises optically transparent polydimethylsiloxane with remarkably high durability, thus imparting improved luminescence efficiency and product reliability to various electronic devices, when applied as a luminescent material to the electronic devices.

Abstract: The present invention relates to chain extenders, processes for their preparation and their use in the preparation of biocompatible biodegradable polyurethanes and polyurethane ureas for biomedical applications such as stents, scaffolds for tissue engineering.

Abstract: A catalyst masterbatch is disclosed, which when used with a rigid TPU polymer, will cause the rigid TPU to depolymerize during melt processing and repolymerize as the melt is being cooled. This feature is of particular interest in a pultrusion process to create TPU/fiber composites. The catalyst masterbatch contains a relative soft TPU polymer where the catalyst has been swelled or absorbed into the soft TPU polymer. A carrier, such as a plasticizer, can be used to aid the transport of the catalyst into the soft TPU polymer. The catalyst masterbatch is used as an additive to the rigid TPU in a pultrusion process to make the composites. The catalyst masterbatch can also be used in non-fiber reinforced rigid TPU compositions to increase the Mw of melt processed rigid TPU.

Abstract: A method for formation of a polymer film in-situ according to the invention comprises steps of: providing a polymerizable composition in one or multiple parts; initiating polymerization of the polymerizable composition to form a polymerizing composition; prior to completion of polymerization of the polymerizable composition, forming a film therefrom; and fully polymerizing the polymerizing composition to form the polymer film.

Abstract: A polymer obtainable by polycondensation or polyaddition of monomeric compounds, wherefor accompanying use is made as monomeric compound of 2-(2-methylbutyl)-2-propyl-1,3-propanediol of the formula I or its alkoxylated derivatives (also referred to collectively below as C11 diol).

Abstract: Disclosed is a carboxyl group-containing polyurethane containing a structure derived from a polycarbonate diol (B), the polycarbonate diol (B) having: (i) a number-average molecular weight of 500 to 50,000; (ii) an alkylene group of 8 to 18 carbon atoms in its structure; and (iii) hydroxyl groups at both ends. The carboxyl group-containing polyurethane is suitable as materials of cured products that are excellent in adhesion with substrates, low warpage, flexibility, plating resistance, soldering heat resistance and long-term reliability.