Abstract: An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.

Abstract: The present invention relates to systems and methods for solid freeform fabrication, especially selective laser sintering, as well as various articles made using the same, where the systems and methods utilize certain thermoplastic polyurethanes which are particularly suited for such processing. The useful thermoplastic polyurethanes are derived from (a) a polyisocyanate component, (b) a polyol component, and (c) an optional chain extender component; wherein the resulting thermoplastic polyurethane has a melting enthalpy of at least 5.5J/g, a Tc (crystallization temperature) of more than 70° C., a ?(Tm:Tc) of from 20 to 75 degrees, where ?(Tm:Tc) is the difference between the Tm (melting temperature) and Tc.

Abstract: The present invention relates to systems and methods for solid freeform fabrication, especially selective laser sintering, as well as various articles made using the same, where the systems and methods utilize certain thermoplastic polyurethanes which are particularly suited for such processing. The useful thermoplastic polyurethanes are derived from (a) a polyisocyanate component, (b) a polyol component, and (c) an optional chain extender component; wherein the resulting thermoplastic polyurethane has a melting enthalpy of at least 5.5 J/g, a Tc (crystallization temperature) of more than 70° C., a ?(Tm:Tc) of from 20 to 75 degrees, where ?(Tm:Tc) is the difference between the Tm (melting temperature) and Tc.

Abstract: The invention relates to a repulpable adhesive comprising orthophosphoric acid, to adhesive tapes comprising at least one layer of such an adhesive, and to the use of adhesive tapes of this kind.

Abstract: The present invention relates to homogeneous extruded articles made from thermoplastically processable polyurethanes based on polyester diols formed from succinic acid and 1,3-propanediol.

Abstract: A golf club head with an adjustable hosel that sits within a cavity loaded with filler material. The cavity may generally extend from crown to sole or, in the alternative, extend only a partial amount of the distance from the crown to the sole.

Abstract: The present invention relates to curable compositions comprising at least one specific blocked amine, at least one surface-deactivated polyisocyanate that is solid at ambient temperature and optionally water or a water-producing substance. Compositions of this type are characterized by an extremely high storage stability as long as they are not heated. Hot curing compositions that cure with the action of heat can thus be produced. Heat-activated compositions can also be produced. When heat is applied the latter compositions are not cured but are activated so that they are able to cure under the influence of moisture. The curable compositions are particularly suitable for use as adhesives.

Abstract: The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures ?130° C. A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B), at least one of these compounds having an OH functionality of ?2, in the presence of D) a catalyst containing one or more zinc compounds, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups. The present invention also relates to the binders obtained by the process of the invention.

Abstract: Disclosed are coating compositions comprising polycarbodiimides having onium salt groups, as well as relating methods and coated substrates.

Abstract: A thin self-supporting adhesive film is claimed that includes a first polyurethane and a solid surface-deactivated isocyanate.

Abstract: There are provided a fluorine-containing photocurable resin composition and a method of preparing a mold comprising the same and more particularly, a photocurable resin composition having chemical resistance, mechanical properties and high transmittance, etc. as well as being easily wetted with and released from thermosetting or photocurable resins for pattern formation regardless of additional surface treatment, as opposed to the existing polymer resin materials used for resin molds, and a method of preparing a resin mold using the same.

Abstract: Briefly, the present disclosure provides a film, tape or outer layer of a composite part comprising: a) at least one layer comprising a crosslinked polymer selected from the group consisting of crosslinked polyurethane, crosslinked polyurea, and crosslinked mixed polyurethane/polyurea polymer; and in some embodiments b) an adhesive layer. In some embodiments the layer additionally comprises a non-crosslinked polymer forming a semi-IPN with the crosslinked polymer. In some embodiments the non-crosslinked polymer may be selected from the group consisting of polyurethane, polyurea, and mixed polyurethane/polyurea polymer. In some embodiments the crosslinked polymer may additionally comprise an acrylate-containing component.

Abstract: The present invention relates to a paint composition comprising a component A, being a basic binder, and a component B, being an isocyanate compound. The present invention also relates to the use of the present paint composition as a paint or top coat. The present invention moreover relates to an object of which at least one surface is coated with at least one layer of the present paint composition.

Abstract: The object of the present invention is to provide a golf ball that satisfies both of the flight distance at the shot with a driver, a long iron, and a middle iron and the controllability at the approach shot with a short iron and is also excellent in the abrasion resistance of the cover.

Abstract: A coating composition for a golf ball and a coated golf ball are disclosed. The coating composition comprises a polyurethane and a boron-containing compound that improves the adhesion of the coating to a printed image.

Abstract: Process for reacting thermoplastic polyurethanes with compounds having isocyanate groups, wherein the reaction is carried out in the presence of a prepolymer which is the reaction product of (a) isocyanates with (b) compounds which are reactive toward isocyanates and have a molecular weight in the range from 500 g/mol to 10 000 g/mol, preferably from 2000 g/mol to 8000 g/mol, and the prepolymer has a glass transition temperature Tg measured by means of DSC in accordance with DIN EN ISO 11357-1 below ?35° C.

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: The object of the present invention is to provide a golf ball having superior abrasion resistance, durability and spin performance. The present invention provides a golf ball of the present invention has a core and a cover, wherein the cover is formed from a cover composition that contains, as a resin component, a thermoplastic polyurethane (A) and a urethane prepolymer (B) having two or more isocyanate groups.

Abstract: The invention provides a resin composition for laser engraving, having a binder polymer containing at least one of a structure unit represented by the following Formula (I) or a structure unit represented by the following Formula (II). In the Formulae, Q represents a partial structure which provides an acid group having an acid dissociation constant pKa of 0 to 20 when it is in the form of -Q-H; R1 to R3 each independently represent a hydrogen atom or a monovalent organic group; and A and B each independently represent a bivalent organic connecting group. The invention further provides a relief printing plate precursor having a relief forming layer containing the resin composition, a method for manufacturing a relief printing plate having crosslinking components of the relief forming layer and laser engraving the relief forming layer, and a relief printing plate formed thereby.

Abstract: The invention relates to a process for preparing a reinforced and reactive thermoplastic composition having a continuous phase which is based on at least one thermoplastic polymer and dispersed in which is a discontinuous phase based on at least one reactive reinforcing agent that may be immiscible with said at least one thermoplastic polymer, and also to a composition obtained by this process.

Abstract: A polymer blend is provided that includes a polycarbonate polyurethane polymer component having a water contact angle greater than 75 degrees and a polyurethane polymer component having a water contact angle less than 75 degrees. The polycarbonate polyurethane component and the other polyurethane polymer can be immiscible with respect to one another, and thus are phase separated in the polymer blend. The weight percentage of the polycarbonate polyurethane polymer component is greater than the weight percentage of the other polyurethane polymer component in the blend. The polymer blend is well suited for realizing a low friction surface of a variety of medical and non-medical devices.

Abstract: Provided are a resin composition with high adhesion to substrates under hot and humid conditions, a two-part laminate adhesive containing the resin composition, and a laminated film and backsheet for solar cells including a layer of the adhesive. The resin composition contains, as essential components, a polyester polyurethane polyol (A) having a branched structure in a molecule thereof and having a weight average molecular weight (Mw) of 25,000 to 200,000 and a molecular weight distribution (Mw/Mn) of 2.5 to 25; a hydroxyl-containing epoxy resin (B) having a number average molecular weight (Mn) of 300 to 5,000; a hydroxyl-containing polycarbonate resin (C) having a number average molecular weight (Mn) of 300 to 3,000; and a polyisocyanate (D).

Abstract: The invention relates to polyurethanes based on a thermoplastic polyurethane and an isocyanate concentrate having a functionality greater than 2 and less than 10 added to the thermoplastic polyurethane, wherein the hard phase content of the thermoplastic polyurethane is in the range from 0% to 5% and the isocyanate concentrate is added in an amount of at least 2% by weight based on the polyurethane PU-1.

Abstract: The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting, at temperatures of ?130° C., A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one zinc compound, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention and to coating compositions containing these binders.

Abstract: The present disclosure invention relates to novel secondary aminosilanes, a method for producing same, and the use thereof. The secondary aminosilanes can be produced from readily available reactants in a simple manner. The secondary aminosilanes are characterized for example by a low viscosity and are well suited for producing silane-functional polymers that have a low viscosity, fast curing, and good thermal stability.

Abstract: An object of the present invention is to provide a golf ball comprising a core and a cover, wherein the cover is made from a cover composition containing, as a resin component, a thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1) having at least two isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with an isocyanate group; and wherein the cover composition has a slab hardness of more than 60 and not more than 75, and the cover has a thickness of 2.5 mm or less.

Abstract: A polymer blend is provided that includes a polycarbonate polyurethane polymer component having a water contact angle greater than 75 degrees and a polyurethane polymer component having a water contact angle less than 75 degrees. The polycarbonate polyurethane component and the other polyurethane polymer can be immiscible with respect to one another, and thus are phase separated in the polymer blend. The weight percentage of the polycarbonate polyurethane polymer component is greater than the weight percentage of the other polyurethane polymer component in the blend. The polymer blend is well suited for realizing a low friction surface of a variety of medical and non-medical devices.

Abstract: A pigmented adhesive, halo-free heat transfer label is created when adhesive properties are incorporated into colored inks used to print graphics on labels for items such as apparel. The resulting label has a halo-free graphic applied thereto that eliminates the need for a separate application of adhesive to the label. A pigmented adhesive composition for use with heat transfer type labels includes a hydroxyl-functional polyurethane dispersion, one or more polyurethane dispersions different from the hydroxyl-functional polyurethane dispersion, a blocked cross-linking agent, a catalyst for the blocked cross-linking agent, a pigment dispersion, and an adhesive powder, which are combined prior to the formation of a graphic created using the combined mixture, on the release layer of a substrate.

Abstract: The disclosure provides a polyurethane microcapsule consisting of a polymerization product of methylene diphenyl diisocyanate (MDI) prepolymer with a polyol, the polyurethane microcapsule comprising a liquid isocyanate compound encapsulated within the microcapsule. The disclosure also provides self-healing coating compositions comprising such polymeric microcapsules and methods of preventing or slowing corrosion using such coating compositions.

Abstract: The invention relates to a composition having at least one polyurethane polymer comprising isocyanate groups, at least one monomer comprising isocyanate groups, and at least one silicon dioxide comprising on its surface functional groups which are reactive with respect to isocyanate groups. The silicon dioxide is present in the form of particles which have an average particle size of ?100 ?m and a specific surface area of ?100 m2/g. Furthermore, the functional groups of the silicon dioxide are at least partially reacted with isocyanate groups of the monomer comprising isocyanate groups.

Abstract: The present invention provides a resin powder composition for slush molding which can give slush molded articles with more excellent hydrolysis resistance. The present invention relates to a resin powder composition for slush molding which is characterized by comprising as the main component a thermoplastic polyurethane resin powder, preferably a thermoplastic polyurethane elastomer powder, and containing a polycarbodiimide prepared by polymerizing tetramethylxylylene diisocyanate, alkoxy terminated one having a number average molecular weight of 500 to 30,000.

Abstract: The invention provides a golf ball having a core and one or more cover layer encasing the core, wherein at least one cover layer is formed by injection-molding a single resin composition of primarily (A) a thermoplastic polyurethane and (B) a polyisocyanate compound, and at least some polyisocyanate compound in which all the isocyanate groups on the molecule remain in an unreacted state is present in the resin composition. The golf ball has a high rebound, an excellent spin performance and an excellent scuff resistance, and the cover layer-forming resin composition has excellent flow properties and an excellent cover layer manufacturability.

Abstract: The invention relates to moisture-reactive hotmelt adhesive compositions which comprise at least one polyurethane prepolymer P1 being liquid at room temperature containing isocyanate groups and also at least one linear polyurethane P2 being solid at room temperature which comprises polycaprolactone segments, contains hydroxyl groups and has a melt viscosity of 100-300 Pa·s at 170° C. The compositions are notable in particular for a prolonged open time.

Abstract: An object of the present invention is to provide a golf ball which is excellent in abrasion-resistance and durability. The golf ball of the present invention comprises a cover using a cover composition containing thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1a) having at least two isocyanate groups or a polyisocyanate (b-1b) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with the isocyanate groups.

Abstract: The invention provides a golf ball having a core and a cover of at least one layer that is formed over the core and is made of a resin composition. The ball has a weight change ratio, in a 72-hour accelerated moisture absorption test conducted at a temperature of 40° C. and a relative humidity of 90%, of less than 0.287%. By using in the golf ball a polyurethane having a good resistance to water vapor transmission, the weight change ratio and decrease in initial velocity with use over an extended period of time are held to a minimum, enabling the ball quality to be maintained.

Abstract: Thermoplastic polyurethane (i) comprising from 20% by weight to 70% by weight of isocyanate dissolved in the thermoplastic polyurethane, based on the total weight of the thermoplastic polyurethane (i) comprising the isocyanates.

Abstract: Provided are a polymerizable composition for giving a resin which has a high refractive index and low dispersion, and is especially excellent in impact resistance and tintability; and a resin and an optical component each obtained by curing the composition.

Abstract: [Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. [Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.

Abstract: Composition obtained by reacting a polyisocyanate which is a diphenylmethane diisocyanate, optionally comprising a homologue comprising 3 or more isocyanate groups, and/or a variant of such diisocyanate with a monoalkylether of a polyoxyalkylene monoamine having an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and the alkyl group having 1-4 carbon atoms at index of 100-250. It is used as plasticizer, particularly in polyurethane and/or polyurea materials.

Abstract: Solvent free, moisture curable reactive hot melt adhesives are prepared using an oxazolidine functional prepolymer and a polyfunctional isocyanate.

Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.

Abstract: A novel method of preparing an aqueous dispersion of non-uniform polyurethane particles which comprises (a) preparing at least two isocyanate-terminated polyurethane prepolymers having different hydrophilicities; (b) preparing a uniform mixture of said prepolymers, and (c) dispersing the mixed prepolymers in an aqueous medium. The resulting dispersion of the prepolymers may optionally be chain extended. This method enables the preparation of core-shell particles as well as particles of other morphologies, including “raspberry”, interpenetrating network, “salt-and-pepper”, “ice-cream cone” and particles of gradient composition. Similarly, an aqueous dispersion of two different polyurethane polymers may be obtained by first preparing at least two different isocyanate-terminated polyurethane prepolymers, preparing a uniform mixture of such prepolymers and thereafter dispersing the mixture in an aqueous medium.

Abstract: Fluorinated supramolecular polymers containing at least 5% by weight of covalently bonded fluorine atoms, based on total weight of the polymers are disclosed. The polymers comprise a fluorinated polymer chain and a (self-)complementary unit capable of forming at least three hydrogen bonds being covalently bonded to the fluorinated polymer chain. Also disclosed are materials comprising (a) a fluorinated supramolecular polymer and (b) a non-fluorinated polymer and/or (c) a fluorinated compound, the non-fluorinated polymer being a polymer containing less than 5% by weight of covalently bonded fluorine atoms, based on the total weight of the non-fluorinated polymer, and the fluorinated compound being either a low molecular weight fluorinated compound comprising at least one fluorine atom and having a molecular weight of 34 to 600 amu, or a fluoropolymer containing at least 5% by weight of covalently bonded fluorine atoms and a Mn from about 600 to about 5000.

Abstract: A two-component polyurethane clear coat kit system consisting of: (1) a binder component having a solids content of 42 to 50 wt.-% comprising at least one hydroxyl-functional binder and a volatile organic content of 50 to 58 wt.-%, and (2) a polyisocyanate crosslinker component having a solids content of 66 to 70 wt.-% and a volatile organic content of 30 to 34 wt.-%, wherein the solids content of the polyisocyanate crosslinker component comprises a free polyisocyanate solids content consisting of 75 to 100 wt.-% of at least one polyisocyanate of the 1,6-hexane diisocyanate isocyanurate type and of 0 to 25 wt.-% of at least one polyisocyanate of the isophorone diisocyanate isocyanurate type, wherein the sum of the respective wt.-% in each case totals 100 wt.-%.

Abstract: A curable polyimide resin composition containing a polyimide resin obtainable from by a reaction of a reaction mixture containing a diisocyanate compound, a carbonate group-containing diol compound and an imide compound having two terminal hydroxyhydrocarbyl groups gives a cured insulation film having improved characteristics.

Abstract: A method for producing compounds comprising at least one carbodiimide group is described, by reacting at least one isocyanate-containing starting compound or a derivative thereof, wherein the method is conducted in at least two stages.

Abstract: The invention relates to humidity hardening compounds containing at least one polyurethane polymer, P, exhibiting an isocyanate group, at least one polyimine ALD of Formula (I) of at least 22% by weight, in relation to the sum of the components of the compound which contain the isocyanate group, as well as, if necessary, a polyisocyanate oligomer OP. The humidity hardening compound is particularly suitable for providing coatings and linings. The use of the imines makes possible VOC-free or VOC-poor compounds, which is a substantial advantage for indoor applications.

Abstract: The present invention relates to a composition comprising a hydrophobically modified alkylene oxide polyurethane characterized by having a M, of from 50,000 to about 150,000 Daltons and a polydispersity of 2.5 to about 5.0. The present invention further relates to a multi-step process for the preparation of the hydrophobically modified polymer.

Abstract: The invention relates to polyurethanes based on a thermoplastic polyurethane and an isocyanate concentrate having a functionality greater than 2 and less than 10 added to the thermoplastic polyurethane, wherein the hard phase content of the thermoplastic polyurethane is in the range from 0% to 5% and the isocyanate concentrate is added in an amount of at least 2% by weight based on the polyurethane PU-1.

Abstract: Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyether or polyester polyol reacted with a diisocyanate. A melt spinning process is also disclosed using a polyether polyurethane with a crosslinking agent. Long melt spinning run times can be achieved without experiencing excessive pressure buildup in the spinneret and fiber breakage. The thermoplastic polyether polyurethane polymers are made by reacting: (1) a blend of two or more hydroxyl terminated intermediates wherein one intermediate is a polyether intermediate and has a higher number average molecular weight than the other said polyether intermediates, and wherein the weighted average number average molecular weight of said blend is greater than 1200 Daltons; (2) at least one polyisocyanate; and (3) at least one hydroxyl terminated chain extender.