Abstract: The present invention provides a two-component solvent free polyurethane adhesive composition, comprising: (A) a OH-containing component, and (B) an NCO-containing component; wherein the mass ratio between the OH-containing component (A) and the NCO-containing component (B) is greater than 1:1, and the molar ratio between the OH group in the component (A) and the NCO group in the component (B) is less than 1:1.

Abstract: A load wheel for a vehicle is provided having a cylindrical hub with an axis, a first sidewall, a second sidewall, an outer surface, a central core extending coaxially within the hub, and a plurality of passageways extending in an axial direction between the first and second sidewall. A solid, non-pneumatic tire is bonded to the outer surface of the hub, and a set of bearing is mounted in the central core of the hub. The hub is characterized by a “heat factor” equal to the (hub mass×hub specific heat)/surface area exposed. The heat factor for a hub comprising passageways is compared to the heat factor for a solid hub to derive a heat factor ratio, which is used to select the exposed surface area of the hub and maintain the operating temperature of the wheel below the failure temperature.

Abstract: The present disclosure relates to a matting agent including polymer particles, a matting polymer composition including a matting agent, and a method of producing polymer particles. The polymer particles may be produced by a simple process using a suspension polymerization method, and is relatively easy to control a degree of crosslinking. In addition, in a case where a matting polymer composition is prepared using a matting agent including the polymer particles, it is possible to manufacture a molded article having excellent appearance and matting effect without deterioration of the existing mechanical properties such as impact strength and tensile strength of a thermoplastic polymer, and in particular, an excellent matting effect may be exerted even in the extrusion processing, which has been difficult to achieve in the related art.

Abstract: An embodiment of the present invention relates to a pouch-type secondary battery. According to embodiment of the present invention, the pouch-type secondary battery includes: an case configured to house an electrode assembly from which electrode tab are drawn out; sealing parts formed by adhering the case along outer peripheries of the electrode assembly; and folding parts formed by folding the sealing parts of surfaces on which the electrode tab drawn to an outside of the case is not formed, wherein a length of the folding part has a relationship with a thickness of the electrode assembly as the following equation: H?T/2 (wherein, H is the height of the folded folding part, T is the thickness of the electrode assembly, based on a cross-section perpendicular to a direction in which the electrode tabs of the electrode assembly are drawn out).

Abstract: A process for removal of acid gases from fluid stream, wherein the fluid stream is brought into contact with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising a diluent and a compound of the general formula (I) wherein R1 is selected from C1-C8-alkyl and C2-C8-hydroxyalkyl; R2 is selected from hydrogen and C1-C8-alkyl; R3 is selected from hydrogen and C1-C8-alkyl; R4 is selected from hydrogen and C1-C8-alkyl; R5 is C1-C8-alkyl; with the proviso that at least one of the following conditions (i) and (ii) is met: (i) R5 is C3-C8-alkyl bound to the nitrogen atom via a secondary or tertiary carbon atom; (ii) when R4 is hydrogen, R3 is C1-C8-alkyl; or when R4 is C1-C8-alkyl, at least one of R2 and R3 is C1-C8-alkyl; and n is an integer from 0 to 6.

Abstract: Provided are oriented biodegradable thermoplastic polyurethane films. The films may be prepared by extruding and drawing biodegradable polyurethane films. The polyurethanes may be prepared from biodegradable polyols and/or biodegradable chain extenders. The films possess high tensile strength yet are degradable under biological conditions. The films may be utilized in the fabrication of devices, particularly implantable medical devices.

Abstract: Provided is a hydrophilization treatment liquid for a semiconductor wafer surface, the hydrophilization treatment liquid being capable of imparting hydrophilicity to the semiconductor wafer surface. A hydrophilization treatment liquid for a semiconductor wafer surface, the hydrophilization treatment liquid comprising water and a compound represented by Formula (1) below, and a total content of the water and the compound represented by Formula (1) below being 95 wt. % or greater. R1O—(C3H6O2)n—H??(1) where R1 denotes a hydrogen atom, a hydrocarbon group having from 1 to 24 carbon atoms and optionally having a hydroxyl group, or a group represented by R2CO, the R2 denoting a hydrocarbon group having from 1 to 24 carbon atoms; and n indicates an average degree of polymerization of a glycerin unit in the parentheses, and is from 2 to 60.

Abstract: Disclosed are methods of using reaction injection molding to mold stimuli-responsive thermosets such as urethane linked poly(caprolactone) networks from polyols and polyisocyanates, as well as polymers prepared by such methods.

Abstract: A polyurethane foam is obtained by foaming a blend containing a polyol and a polyisocyanate. The polyol contains a polycarbonate diol that has a polyester structure and a polycarbonate diol obtained by developing a polymerization reaction using 1,5-pentanediol and 1,6-hexanediol. The polyurethane foam has a density from 0.1 to 0.4 g/cm3.

Abstract: A method of installing a binder-based overlay system may include contacting a layer of geotextile fabric to a surface of a substrate and applying a primer layer to a surface of the geotextile fabric. Two or more binder layers including infill particles may be applied over the primer layer. A resurfacer layer followed by one or more color layers may be applied over the two or more binder layers. The primer layer, one or more binder layers, resurfacer layer, and two or more color layers may cure upon application to form a monolithic layer upon the substrate.

Abstract: The present invention relates to novel high-value polycarbonate polyols, to processes for the production thereof, to polyisocyanate prepolymers obtainable therefrom and also polyurethane (PUR) and polyurethane urea elastomers which under particularly demanding applications show unique combinations of processing characteristics, hydrolysis and oxidation stability, mechanical and dynamic mechanical properties.

Abstract: The present disclosure relates to an adhesive composition and a method of manufacturing a nonpneumatic tire using the same, and more specifically, to an adhesive composition comprising a linear structured prepolymer for polyurethane having a cyclic carbonate group at both ends thereof and a polyfunctional amine, and a method of manufacturing a nonpneumatic tire using the same.

Abstract: A polyester elastomer resin composition having excellent anti-noise properties and wear resistance that achieves sustained wear resistance over a long period of time; enables lubricants to bleed out even in a low-temperature environment, so that the effects of the lubricants are maintained; and further prevents the lubricants from being dissolved in water, even when a molded article is washed with water.

Abstract: A thermosetting urethane resin composition having excellent self-healing properties, antifouling properties, and elongation, a film including a curable coating of the thermosetting urethane resin composition, and a product including the film are provided. The thermosetting urethane resin composition contains a main agent containing a urethane prepolymer and an organic solvent and a curing agent. The urethane prepolymer contains a composition containing a polyol, a polyisocyanate, and a chain extender and has a hydroxy group at an end. The polyol contains a polyol having no aromatic ring. The polyol having no aromatic ring contains liquid and solid polycarbonate polyols. The polyisocyanate contains a polyisocyanate having no aromatic ring. The chain extender contains a low molecular weight triol. The curing agent contains triisocyanate. The percentage of the total amount of the low molecular weight triol and the triisocyanate is 10 mass % or higher and 35 mass % or lower.

Abstract: A description is given of a method of making film laminates using a lamination adhesive comprising (a) at least one acrylic polymer A with anhydride groups which are reactive with primary or secondary amine groups; and (b) at least one compound B with at least two amine groups selected from primary and secondary amine groups. The acrylic polymer A has a molecular weight of from 3000 to 50000 and the lamination adhesive is free of organic solvents, free of water and free of compounds with isocyanate groups.

Abstract: Cellulose-based composite material comprising an electrically conductive material dispersed in a matrix comprising at least one plant-derived protein and a polymer of aleuritic acid, said composite material being obtainable by a process comprising the steps of dissolving at least one plant-derived protein and aleuritic acid in a dissolving solution to achieve a first mixture, dispersing an electrically conductive material in said first mixture to achieve a conductive ink, distributing said conductive ink on at least one side of a cellulose substrate to achieve a coated cellulose substrate, hot-pressing said coated cellulose substrate to obtain i) impregnation of the cellulose substrate with said conductive ink and ii) polymerization of aleuritic acid.

Abstract: The present disclosure provides a two-component solvent-based adhesive composition. The two-component solvent-based adhesive composition contains the reaction product of (A) an isocyanate component; (B) a polyol component containing a polyester-amide polycarbonate polyol; and (C) a solvent. The present disclosure also provides a method of forming the two-component solvent-based adhesive composition.

Abstract: The present invention relates to an aliphatic-aromatic polyester having a whiteness index according to ASTM E 313-73 of at least 25, to a process for preparation thereof and to the use of the aliphatic-aromatic polyester for production of polyester fibers (PF). The present invention further relates to the polyester fibers (PF) comprising the aliphatic-aromatic polyester.

Abstract: Provided is a prepeg resin composition, containing: a urethane (meth)acrylate (A) that is a reaction product of polyisocyanate (a1), polyol (a2), and hydroxy alkyl (meth)acrylate (a3); and a polymerization initiator (B), as an essential component, in which the polyisocyanate (a1) is at least one polyisocyanate selected from 2,4?-diphenyl methane diisocyanate, 4,4?-diphenyl methane diisocyanate, a carbodiimide modified product of 4,4?-diphenyl methane diisocyanate, and polymethylene polyphenyl polyisocyanate, and the polyol (a2) has an aromatic-ring and an oxyalkylene structure. The prepreg resin composition of the invention is excellent in workability and molding properties, and is capable of forming a molded article excellent in various physical properties such as external appearance and heat resistance, and thus, can be preferably used in a prepreg and a molded article thereof.

Abstract: The disclosure relates to a self-healing omniphobic composition including a self-healing omniphobic polymer with a crosslinked backbone. The crosslinked backbone includes a reaction product between a polyisocyanate, a functionalized omniphobic polymer reactive therewith, a reversible polyfunctional linker including a hindered secondary amino group and/or an aromatic hydroxy group, and one or more polymeric backbone components. The crosslinked backbone includes reversible urea or reversible urethane bonds between the reversible polyfunctional linker and the polyisocyanate, which in turn provide self-healing properties to the omni-phobic composition. The self-healing omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The omniphobic composition can be used as a coating on any of a variety of substrates to provide self-healing omniphobic properties to a surface of the substrate.

Abstract: This invention relates to the field of polymers. More specifically, the invention comprises thermoplastic polyurethane elastomers comprising polyesters comprising nitro-substituted dicarboxylic acids that are products obtained by decomposition of polyethylene. The thermoplastic polyurethane elastomers described herein exhibit higher glass transition temperatures and higher Shore A hardness compared to thermoplastic polyurethane elastomers synthesized from similar polyester diols made from virgin monomers that do not contain nitro substitution.

Abstract: A golf ball paint composition includes primarily a urethane paint containing polyol as a base resin and polyisocyanate as a curing agent. Two types of polyester polyol are used as the polyol, and the composition has an elastic work recovery of at least 70%. The paint composition has a high self-repairing ability and is of high quality as a golf ball paint. Golf balls coated with this composition are able to maintain a good durability, in addition to which they have an excellent abrasion resistance and an excellent ball appearance.

Abstract: A method for producing 3-mercaptopropionic acid and methods using same for producing a carbonic acid ester compound having a mercapto group and a thiourethane-based optical material. The present invention improves a process during the production of 3-mercaptopropionic acid, significantly increases yield, and reduces the temperature and time during vacuum distillation, thereby preventing the destruction of a product and significantly increasing productivity. The present invention allows high-purity 3-mercaptopropionic acid having an excellent color to be finally yielded; accordingly, by using same, a high-purity carbonic acid ester compound having an excellent color and a mercapto group can be inexpensively obtained. A thiourethane-based polymeric composition and a thiourethane-based optical material obtained by polymerizing same can likewise be inexpensively obtained by using said carbonic acid ester compound.

Abstract: A pressure sensitive adhesive formed from a blend of an acrylate polymer having at least one crosslinkable functional group, and a liquid oligomer having at least one crosslinkable functional group, wherein at least one of the acrylate polymer and the oligomer is crosslinked in the presence of the other.

Abstract: The present invention relates to novel biobased carbodiimides, a process for production thereof and use thereof. The biobased carbodiimides according to the invention comprise the reaction product of at least one carbodiimide and a carbon acid compound isolated or produced from renewable raw materials and having a functionality>1 and/or a hydroxy carboxylic ester having 2-24 carbon atoms.

Abstract: The process of obtaining a polylactide-urethane copolymer is described which includes contacting an ?, ? dihydroxyl polylactide prepolymer of general formula I wherein X is NH or O, R is an alkyl or an aryl group, n and n? are integer numbers which are substantially the same and are in the range from 20 to 140, with a diisocyanate compound of general formula II O?C?N—R?—N?C?O wherein R? is an alkyl or an aryl group and with an amine or an alcohol of general formula III R?X?]2 wherein R? is an alkyl or an aryl group and X? is NH2 or OH, and with the proviso that at least one of R or R? is an aryl group.

Abstract: Disclosed herein are polyurethane golf ball compositions. The compositions are prepared by adding a UV absorber to a polyol prior to reacting the polyol with an isocyanate to form a prepolymer, which is then reacted with a curing agent to form the polyurethane.

Abstract: Embodiments of the invention encompass polyurethane elastomers which are a reaction product of a reaction mixture that includes a) at least one polyester made using a dicarboxylic acid having a carbon chain of from 9 to 20; b) at least one chain extender; and c) at least one polyisocyanate. At least 20% of the total carbon content of the polyurethane elastomer is from renewable carbon.

Abstract: This invention relates to biocompatible, biodegradable thermoplastic polyurethane or polyurethane/ureas comprising isocyanate, polyol and a conventional chain extender and/or a chain extender having a hydrolysable linking group and their use in tissue engineering and repair applications, particularly as stents and stent coating.

Abstract: The invention relates to novel processes for improving hydrolysis resistance in polyurethane (PU) based systems, preferably PU adhesives, PU casting resins, PU elastomers or PU foams.

Abstract: The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic.

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 composition comprising the reaction product of (a) an isocyanate group-containing component having an average functionality of at least 2; and (b) an active hydrogen group-containing component having an average functionality of at least 2. The composition is biodegradable, a solid at 22° C. and below, and has pressure sensitive adhesive properties at a temperature of 37° C. and relative humidity of 100%. The composition may be used to adhere polymer meshes or films to biological tissue.

Abstract: Multilayer fluoropolymer-containing films having improved interlayer adhesion. More particularly, multilayer films including a fluoropolymer layer attached to a thermoplastic polymer layer via an intermediate poly(ester-urethane) copolymer containing adhesive layer, articles produced therefrom, and products which are encased by the multilayer films. The films are suitable for encasing the sensitive luminescent components of electroluminescent lamps.

Abstract: The present invention relates to quick-drying two-component polyurethane coating compositions, to processes for preparing them, and to their use.

Abstract: The present invention provides an electrophotographic member capable of more definitely suppressing occurrence of a C set image. The electrophotographic member has a surface layer including a modified polysiloxane having a structure represented by the following formula (1). In the formula (1), G represents a bivalent group having an ethylene oxide chain represented by (—O—C2H4—) and L represents polysiloxane having at least a SiO4/2(Q) unit or a SiO3/2(T) unit.

Abstract: The present invention is directed to a composition comprising an amide moiety containing polyol wherein the amide moiety is formed by the reaction of an amine reactive compound with an amine containing compound.

Abstract: The present invention relates to a polyester polyol, suitable for use in the manufacture of a polyurethane, suitable for use in the manufacture of a polyurethane, the polyester polyol having an ABA-structure, in which A represents a lactide-oligomer and in which B represents an initiator. The initiator includes a reaction product having long chain dicarboxylic acid components having 18 or more carbon atoms. The invention also relates to a method for the manufacture of the polyester polyol. The invention further pertains to polyurethanes including the before-mentioned polyester polyol as well as the use of these polyurethanes as an elastomer having a high toughness. The toughness is believed to originate from the combination of the hydrophobic character of the initiator and the hydrophilic character of the lactide parts in the polyol structure. The strength of the invented polylactide-polyurethane elastomers can be further improved by incorporating a carbodiimide in the elastomer material.

Abstract: The invention relates to an isocyanate-containing prepolymer obtainable by reacting at least one isocyanate with at least one first compound selected from the group comprising monohydric alcohols, thiols and secondary amines; wherein the ratio of the NCO value of the isocyanate-containing prepolymer, to the OH, SH or NH value, of said monohydric alcohol, thiol or secondary amine respectively ranges from 0.0005 to 1.0000 and wherein said at least one first compound is present in a total amount of at least 40% by weight based on the total weight of the isocyanate-containing prepolymer.

Abstract: The invention relates to an isocyanate-containing prepolymer obtainable by reacting at least one isocyanate which comprises methylene diphenyl diisocyanate with at least one first compound selected from the group comprising monohydric alcohols, thiols and secondary amines and with at least one second compound selected from the group comprising monohydric alcohols, thiols and secondary amines.

Abstract: The tendency of a two component laminating adhesive based on polyurethane chemistry to form a mist of fine droplets when applied at a high line speed may be reduced by including both a high functionality polyol and a lower functionality polymeric polyol in Component B which is combined and reacted with an isocyanate-functionalized polyurethane prepolymer in Component A.

Abstract: Embodiments include oxazolidone ring containing adducts obtainable by combining an aliphatic epoxy compound, an aromatic epoxy compound, and a diisocyanate. Embodiments further include a curable powder coating composition including a resin component and a hardener component, where the resin component includes the oxazolidone ring containing adduct.

Abstract: A problem to be solved by the present invention is to provide a polyurethane film that offers both soft texture and high strength. The present invention relates to a polyurethane film obtained by solidifying a polyurethane (A) obtained by reacting a polyol (a1) including an aliphatic polyester polyol having an anionic group (a1-1), and a polyester polyol (a1-2) other than the aliphatic polyester polyol (a1-1) with a polyisocyanate (a2), using a metal salt, in which the polyurethane (A) has an aromatic structure in the range of 500 mmol/kg to 2,000 mmol/kg with respect to the entire polyurethane (A).

Abstract: The present invention relates to a polymerizable composition comprising polyisocyanate(s) (A), polythiol(s) (B), thiol(s) (C) and catalyst(s) (D). The polyisocyanate(s) (A) is at least one bifunctional or higher functional alicyclic polyisocyanate; the polythiol(s) (B) is at least one compound selected from polythiols represented by the following general formula (B1); the thiol(s) (C) is at least one compound selected from thiols having general formula (3); and the catalyst(s) (D) is at least one polymerization catalyst selected from metal compounds, quaternary ammonium salts, organic sulfonic acids, tertiary amines and relative inorganic or organic salts.

Abstract: The invention relates to an electrode binder composition, an electrode made using the described binder composition, and an electrochemical cell made using the described electrode, where the all of these materials are made using a composition of a poly(dialkylene ester) thermoplastic polyurethane composition. The electrode is made using the described thermoplastic polyurethane and an electrode active material. The electrochemical cells can be made using the described electrodes and also using (i) membranes and/or separators made using the described poly(dialkylene ester) thermoplastic polyurethane composition; (ii) an electrolyte system based on the described poly(dialkylene ester) thermoplastic polyurethane composition; or (iii) a combination thereof.

Abstract: The present invention relates to isocyanate functional prepolymers, aqueous polyurethane dispersions produced from the prepolymers and various uses of such dispersions. The prepolymers are prepared by reacting a diisocyanate, a dihydroxy compound having a number average molecular weight of from about 700 to about 16,000, and a trihydroxy component of the formula: R—(OH)3 where R is a saturated straight chain or branched chain aliphatic group of from 2 to 8 carbon atoms. The invention also relates to polyurethane dispersions prepared from the prepolymers and to various uses of the resultant dispersions.

Abstract: Composite materials and methods for their preparation are described herein. The composite materials include a polyurethane made from the reaction of an isocyanate and a mixture of polyols, and coal ash (e.g., fly ash). The mixture of polyols comprises at least two polyols including a high hydroxyl number polyol having a hydroxyl number greater than 250 and comprising from about 1% to about 25% by weight of the total polyol content used to form the polyurethane, and a low hydroxyl number polyol having a hydroxyl number of 250 or lower. The coal ash is present in amounts from about 40% to about 90% by weight of the composite material. Also described is a method of preparing a composite material, including mixing an isocyanate, a mixture of at least two polyols, coal ash (e.g., fly ash), and a catalyst.

Abstract: Described herein are a group of degradable, thermoplastic polymers, which are able to change their shape after an increase temperature. Their shape memory capability enables bulky implants to be placed in the body through small incisions or to perform complex mechanical deformations automatically. The shape memory polymers are preferably biocompatible and can be biodegradable or non-degradable polymers. Preferably, the biodegradable polymer has a linear degradation rate. In a specifically preferred embodiment, the suture is formed of biodegradable polymer capable of forming a self-tightening knot. In a most preferred embodiment, the suture is used to close a wound or body scission.

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: The present invention relates to a urethane optical member containing at least one kind of structures represented by the following formulae (1) and (2) in a structure constituting the optical member, and a method for producing the same.