Abstract: Metallized nanostructured chemicals are incorporated at the molecular level as alloying agents for the reinforcement of polymer microstructures, including polymer coils, domains, chains, and segments. Direct blending processes are effective because of the tailorable compatibility of the metallized nanostructured chemicals with polymers.

Abstract: A moisture-curable polyurethane hot-melt adhesive, which includes a urethane prepolymer obtained by a reaction between polyisocyanate and polyols, wherein the polyols contain: long-chain aliphatic polyester polyol (A) represented by a general formula (I); aliphatic polyether polyol (B) having a number average molecular weight of 3,000 to 15,000; and aromatic polyester polyol (CI) which has a number average molecular weight of 1,000 to 5,000 and has a glass-transition temperature of 40° C. or more; (in the general formula (I), R1 and R2 each independently represent a straight chain alkylene group wherein the number of carbon atoms in the group is an even number, the sum of the number of carbon atoms in R1 and R2 is 12 or more, and n represents a number of 3 to 40).

Abstract: A polyurea composition, a multi-component composite coating and articles formed therefrom, and methods of forming the same are disclosed. The coating composition is formed from a reaction mixture comprising an isocyanate-functional component and an amine-functional component. The ratio of equivalents of isocyanate groups to equivalents of amine groups is greater than 1 while the volume mixing ratio of the isocyanate-functional component to the amine-functional component is capable of being applied to a substrate at 1:1.

Abstract: The invention relates to a method for adhesively bonding substrates together that contains irregularities on the surface of the substrates. The adhesive is particularly suitable for adhesively bonding thin flexible substrates onto a rigid substrates.

Abstract: Disclosed is a moisture-curing type curable resin composition containing: a curable resin intramolecularly having a silicon-containing functional group; and a Lewis acid or a complex of the Lewis acid as a curing catalyst, the Lewis acid being selected from the group consisting of metal halides and boron halides, which is rapidly cured at room temperature. The silicon-containing functional group is represented by general formula: —SiX1X2X3 or —SiR1X1 X2 (wherein, X1, X2 and X3 respectively represent a hydrolytic group and may be the same as or different from each other, and R1 represents a substituted or unsubstituted organic group having 1 to 20 carbons). If the silicon-containing functional group is —SiR1X1 X2, the curable resin further contains intramolecularly a polar component that is one of urethane, thiourethane, urea, thiourea, substituted urea, substituted thiourea, amide, and sulfide bonds, and hydroxyl, secondary amino and tertiary amino groups.

Abstract: The invention relates to a liquid 2K polyurethane composition of a polyol component A comprising at least one hydrophobic polyol with a molecular weight>300 g/mol and a hydrophilic polyol with a molecular weight<500 g/mol, and 1 to 50 wt. % of a powdered molecular sieve as well as a polyisocyanate or an NCO-reactive PU-prepolymer. In addition, a process is described for casting plastic or metallic moldings, particularly membrane substrates, by the use of an inventive 2K polyurethane composition.

Abstract: The present invention concerns microcapsules comprising a capsule core and a capsule wall composed of thermoset polymer and also, disposed on the outer surface of the capsule wall, a polyelectrolyte having an average molecular weight in the range from 500 g/mol to 10 million g/mol, and also a process for their production and their use in bindered building materials, textiles, heat transfer fluids and dumped beds.

Abstract: A process for producing a polythiourethane resin which comprises (A) a step of synthesizing a polythiol oligomer having disulfide bond by reaction of a polythiol compound having a functionality of two or greater and sulfur and (B) a step of bringing the polythiol oligomer obtained in step (A) and a compound having poly(thio)isocyanate groups into reaction with each other, wherein step (A) is conducted in the absence of solvents using no catalysts or a catalyst substantially inert to the compound having poly(thio)isocyanate groups. A polythiol oligomer exhibiting a greater refractive index than that of the polythiol compound having a functionality of two or greater used as the starting material is produced at a low cost, and a process for producing a practically useful polythiourethane resin exhibiting a stable great refractive index and a great Abbe number is provided.

Abstract: A tire includes at least one outer structural element, wherein the at least one outer structural element is at least partially coated by at least one coating layer including a crosslinked composition obtained by reacting: (a) at least one polysulfide polymer; (b) at least one thermoplastic polymer having at least one hydroxyl group; with (c) at least one polyisocyanate. Preferably, the at least one structural element is at least one of the tire sidewalls.

Abstract: An ink jet treatment liquid contains a cationic polyurethane and a polyamine and/or a polyamine derivative.

Abstract: The invention describes the unexpected characteristics of blends, including crosslinked reaction products of elastomeric silicone polymers with various polyurethanes and their applications in personal care products.

Abstract: A polymer coating for implantable medical devices based on polyorthoesters and methods for fabricating the coating are disclosed. The implantable medical devices made of polyorthoesters and methods for fabricating thereof are also disclosed.

Abstract: Provided is a process which can be carried out upon the production of a polyurethane/thiourethane-based resin with the use of a polyisocyanate compound, a polyol compound, and a polythiol compound, without causing abrupt heat generation or viscosity increase. At least one polyol compound having at least one ether bond and two or more hydroxy groups in a molecule is used as the polyol compound, whereby a large heat generation or an abrupt viscosity increase are prevented from occurring upon blending monomer.

Abstract: A coating composition is provided to improve the integrity of paint coatings applied to a substrate. The composition comprises a polyurethane uniformly mixed with a polysulfide. The disclosed subject matter may be utilized as an aircraft substrate is provided with a primer coating applied. The coating composition is then applied over the primer coating. Lastly, a top paint coating is applied over the coating composition to complete the layering process. The coating composition provides the top paint coat with the ability to flex and deflect when stresses are applied by adverse environmental conditions.

Abstract: Method of bonding labels to hydrophobic substrates, a pressure-sensitive hotmelt adhesive being applied wholly or partly to the label or to the substrate at an area opposite the label, then bringing label and substrate together and bonding them, characterized in that the pressure-sensitive hotmelt adhesive is water-soluble in alkaline solution and the label is selected from i) water-permeable labels having a water absorbency (Cobb value) of greater than 0.3 g/m2 per 20 sec, ii) perforated labels which on the bonded surfaces have a perforation or cutouts of below 10%. Further described is a label which is coated with a water-soluble pressure-sensitive hotmelt adhesive and which exhibits a high water absorbency and/or, where appropriate, contains perforations or cutouts on the bonded surface.

Abstract: The invention relates to two-component polyurethane compositions that are especially suitable for use as a structural adhesives. Said compositions are constituted of a polyol component K1 and a polyisocyanate component K2, the polyol component K1 comprising at least one alkoxylated aromatic diol A1 and at least one aliphatic triol A2 and the polyisocyanate component K2 comprising at least one polyisocyanate B1.

Abstract: The present invention provides a bifunctional phenylene ether oligomer compound having a thermosetting functional group at each terminal, an epoxy resin containing the above oligomer compound and a use thereof. That is, it provides a sealing epoxy resin composition for sealing an electric part, an epoxy resin composition for laminates, a laminate, a printed wiring board, a curable resin composition and a photosensitive resin composition. The resins and resin compositions of the present invention are used in electronics fields in which a low dielectric constant, a low dielectric loss tangent and high toughness are required and also used for various uses such as coating, bonding and molding.

Abstract: An aqueous dispersion of polyurethane composites is made by forming a dispersion of urethane prepolymer or polymer and ketone functional molecule by dispersing them in an aqueous media and adding a hydrazine functional molecule. When the ketone functional molecule is derived from levulinic acid and epoxidized vegetable oil, the resulting urethane dispersion has enhanced coalescence with less need for coalescing aids.

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: Aqueous adhesive comprising a polyurethane and a silane of the formula where R1 to R4 each independently are an organic radical, with the proviso that at least two of the groups R1 to R4 are a hydroxyl or alkoxy group.

Abstract: The invention provides a cross-linkable elestomeric thermoplastic polyurethane that is urea free, isocyanutrate free, oxazolinyl free, functional radically-polymerizable pendant group free and having terminal functional radically-polymerizable groups at both ends, and thermoset polyurethanes obtained therefrom. The invention also provides applications of the compositions, and processes for manufacturing these compositions.

Abstract: A curable composition comprising a hydrolysable silyl-containing polymer and a silicone-containing paint adhesion additive that provide curable silyl-containing polymer composition which has improved adhesion of coatings, paints, adhesives, and other surface treatments thereto.

Abstract: The object of the present invention is to provide a thermosetting resin composition which can provide a cured material which is excellent in heat resistance, electrical properties, and flexibility, and has storage stability before curing, and in order to achieve the object, the present invention provide a thermosetting resin composition containing a polyurethane resin (A) which has the structure represented by the following general formula (1) and/or the general formula (2), and an epoxy resin (B). (In the chemical formulae, X represents a residue in which two phenolic hydroxyl groups are excluded from a phenol compound having two or more phenolic hydroxyl groups in the molecule.

Abstract: A bioabsorbable polyurethane block copolymer with having hard and soft segments is formed by the reaction between a diisocyanate such as lysine ethyl ester diisocyanate and a mixture of (i) an aromatic amide or an amino acid derivative and (ii) a polyether glycol and/or an absorbable elastomeric polymer derived from the reaction between dialkylene glycol and a cyclic bioabsorbable monomer such as trimethylene carbonate, caprolactone, or dioxanone.

Abstract: Thermoplastic polyurethanes and molding compositions containing the same having improved surface resistance (writing and scratch resistance) and good industrial processability, and the use thereof, such polyurethanes prepared by reacting: (a) one or more organic diisocyanates; (b) a chain extender comprising at least one low molecular weight polyol having on average at least 1.8 and not more than 3.0 Zerewitinoff-active hydrogen atoms and a number-average molecular weight Mn of 60 to 400 g/mol; and (c) at least one polyol component having a number-average molecular weight Mn of 450 to 10,000 g/mol and on average from at least 1.8 to not more than 3.0 Zerewitinoff-active hydrogen atoms; wherein the ratio of the number of isocyanate groups in component (a) to the number of isocyanate-reactive groups in components (b) and (c) is 0.9:1 to 1.1:1; in the presence of (d) a mixture of polyorganosiloxanes of the general formula (R2SiO)n, in an amount of 0.4 to 10 wt.

Abstract: Provided is a composition for forming a polishing layer of a chemical mechanical polishing pad having polishing characteristics such as a high polishing rate, an excellent planarity of the polished object and less scratches of the polished object. The above composition for forming a polishing layer of a chemical mechanical polishing pad comprises (A) a polyurethane having a carbon-carbon double bond on a side chain and (B) a cross-linking agent.

Abstract: Adhesive systems comprising: (A) an isocyanate group-containing prepolymer prepared by reacting: (A1) an aliphatic isocyante; and (A2) a polyol having a number average molecular weight of ?400 g/mol and 2 to 6 OH groups; and (B) a curing component comprising: (B1) an amino group-containing aspartate ester of the general formula (I); wherein X represents an n-valent organic radical derived from a corresponding n-functional primary amine X(NH2)n, R1 and R2 each independently represent an organic radical having no Zerevitinov active hydrogens and n represents a whole number of at least 2; and (B2) an organic filler having a viscosity of 10 to 6000 mPas at 23° C. measured according to DIN 53019; their use in wound and tissue incision closure, adhesive films comprising the same and dispensing systems therefor.

Abstract: The invention relates to methods of using polymers in the waste stream obtained from the production of powder coat. The polymer in the waste stream can be cured with that in another waste stream or with a virgin polymer.

Abstract: The present invention provides a white ink composition that can give a white image having excellent abrasion resistance. The white ink composition according to the invention is a white ink composition containing hollow resin particles and a polyurethane resin characteristically having a glass transition temperature of 50° C. or less.

Abstract: Sulfur-containing polyurethane comprising the reaction product of: (a) material chosen from polyisocyanate, polyisothiocyanate or mixtures thereof; (b) material chosen from trifunctional or higher-functional polyol having molecular weight of less than or equal to 200 grams/mole, trifunctional or higher-functional polythiol having molecular weight of less than or equal to 700 grams/mole, trifunctional or higher-functional material containing both hydroxyl and SH groups having molecular weight of less than or equal to 700 grams/mole, and mixtures thereof; and (c) material chosen from diol having molecular weight of less than or equal to 200 grams/mole, dithiol having molecular weight of less than or equal to 600 grams/mole, difunctional material containing both hydroxyl and SH groups having molecular weight of less than or equal to 600 grams/mole, and mixtures thereof, wherein at least one of (a), (b) or (c) is sulfur-containing.

Abstract: Presently disclosed embodiments concern an isocyanate-modified composition which includes A) from about 65 to about 99 weight % (based on the total weight of the isocyanate-modified composition) of a base polymer having either hydroxyl groups or amine groups or mixtures thereof, and B) from about 1 to about 35 weight % (based on the total weight of the isocyanate-modified composition) of a blocked isocyanate. The presently disclosed embodiments also include a golf ball made from the isocyanate-modified composition, and a method of making a golf ball using the isocyanate-modified composition, such as by injection molding.

Abstract: An implantable medical device includes a device body at least partially formed of a polymeric material including a base polymer and a block copolymer. The block copolymer includes at least one polyethylene oxide (PEO) segment and at least one silicone (SI) segment, wherein the weight average molecular weight of the block copolymer is in the range of about 400 to about 50,000.

Abstract: A composite polymer is obtained by reacting (a) an elastomer having a carboxyl group with (b) metal oxide fine particles each having an epoxy ring-containing group on the particle surface. A thermally cured product of the composite polymer is a material favorable for forming a primer layer which has not only high transparency but also excellent adhesion to a hard coat layer and is excellent also in scratch resistance, heat resistance, weathering resistance, dyeing property, impact resistance and the like. An article such as an optical article whose primer layer comprises the thermally cured product of the composite polymer has high transparency and is excellent also in heat resistance.

Abstract: The present invention concerns shape memory composites, methods of preparing same and the use of these composites, for example, for products prepared by injection moulding techniques or coating applications.

Abstract: Disclosed is a polyisocyanate composition derived from an aliphatic diisocyanate monomer and an alcohol, which satisfies all the conditions below in a state not containing the aliphatic diisocyanate monomer and a solvent. 1) Isocyanurate trimer concentration: 55-95 mass % 2) Number ratio of allophanate groups derived from the alcohol to isocyanurate groups: 1-20% 3) Urethodione dimmer concentration: 2-25 mass % 4) Viscosity at 25° C.

Abstract: The present invention relates to polyurethane/polyurea elastomers (PU elastomers) having improved processing characteristics, such as for example extended casting time and reduced brittleness, and occupational health and safety advantages, such elastomers being suitable for replacing elastomers based on TDI prepolymers in comparable applications, and to a process for their production and their use.

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: Processes for preparing siloxane-modified polyisocyanates, the processes comprising: providing a polyisocyanate reactant; and reacting the polyisocyanate reactant with a hydroxyl-containing siloxane having a number-average molecular weight of 200 to 3000 g/mol and an average OH functionality of greater than or equal to 1.8, and corresponding to the general formula (I): wherein X represents an aliphatic, unbranched or branched C1 to C20 radical optionally containing ether groups; R represents a hydroxyl-functional radical; R1 represents a hydrogen or an optionally heteroatom-containing C1 to C20 hydrocarbon radical; and n is 1 to 40; siloxane-modified polyisocyanates prepared thereby, and uses therefor.

Abstract: Curable polyurethane/polyurea hybrid compositions that are particularly useful, when cured, as the outer layer and/or at least one inner layer of golf balls, are disclosed. Cured compositions are also disclosed. In addition, methods of increasing the ultraviolet light resistance of a golf ball layer using the curable polyurethane/polyurea hybrid compositions are disclosed. In addition, processes of making the polymer compositions are disclosed.

Abstract: A laser-decomposable resin composition of the invention contains a polyurethane resin having a structure wherein an aromatic group is directly connected to a urethane bond.

Abstract: A two-component adhesive or sealant composition consists of a first component (K1) comprising a prepolymer P, which displays an isocyanate group, and an acceleration component (K2). The said acceleration component (K2) displays a catalyst, which catalyzes the reaction of isocyanate groups and which is a lead, zinc, or iron (III) complex, as well as compounds displayed on isocyanate-reactive groups that are at most 1% by weight. In particular, adhesives with a high cure velocity and good adhesion can be obtained and adapted very easily to ambient conditions.

Abstract: A method of using metallized polyhedral oligomeric silsesquioxanes as cure promoters and catalysts for polyurethanes.

Abstract: This invention discloses paint compositions characterized by comprising polyolefin or modified polyolefin (A) and ionic liquid (B), and coating methods using the compositions.

Abstract: Polyurethane coating compositions comprising a mixture of aromatic and aliphatic isocyanate, and a mixture of polyol resin are disclosed. Methods for treating an aged substrate are also disclosed.

Abstract: The present invention describes the preparation of an aqueous polyurethane dispersion which is cured by radiation, and its use as binder.

Abstract: The object of the present invention is to provide a hard coating composition for a metal substrate, including a film-forming resin component which contains a urethane(meth)acrylate obtained by reacting a polyisocyanate compound, a polyol, and a (meth)acrylate monomer having a hydroxyl group, wherein the polyisocyanate compound is hydrogenated xylylene diisocyanate and/or dicyclohexylmethane diisocyanate.

Abstract: Disclosed is an aqueous coating agent comprising a water dispersion (C) prepared by dispersing resin particles containing a water-dispersible polyurethane resin (A) and at least one compound selected from a hydrophobic polyester polyol (B-1) and a hydrophobic polyether polyol (B-2) in water, and a crosslinking agent (D) capable of reacting with a hydroxyl group, wherein the water-dispersible polyurethane resin (A) is obtained by reacting a polyester polyol (a-1), which is obtained by condensing a dicarboxylic acid containing an aromatic dicarboxylic acid as a main component with a polyol, with a polyisocyanate, and also contains 15 to 35% by weight of an aromatic cyclic structural unit, and wherein the hydrophobic polyester polyol (B-1) and/or the hydrophobic polyether polyol (B-2) are liquid at normal temperature and contain 20 to 50% by weight of an aromatic cyclic structural unit.

Abstract: Polyurethane-based pressure-sensitive adhesive, characterized in that the polyurethane is composed of the following starting materials which are reacted catalytically with one another in the stated proportions: a) at least one aliphatic or alicyclic polyisocyanate having a functionality of in each case less than or equal to three, b) a combination of at least one triol A based on polypropylene glycol and having an average number-averaged molecular weight Mn of less than or equal to 1000 and a triol B based on polypropylene glycol and having an average number-averaged molecular weight Mn of greater than or equal to 1000, preferably greater than or equal to 3000, the ratio of the number of hydroxyl groups of the triol component A to the number of hydroxyl groups of the triol component B being between greater than 0 and 12, the ratio of the number of isocyanate groups to the total number of hydroxyl groups being between 0.8 and 1.15, preferably between 0.95 and 1.

Abstract: Non-aqueous, liquid coating compositions which contain at least one hydroxyl-functional component A, at least one hydroxyl-functional polyurethane resin B differing from the at least one component A and at least one crosslinking agent C with groups reactive towards the hydroxyl groups of A and B, wherein the at least one component A is not solid at room temperature and/or is present in dissolved form and wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 180° C.

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.