|| List of recent Polyurethane-related patents
| Thermoplastic polyurethane with reduced tendency to bloom from a bio-based glycol|
The present invention discloses a thermoplastic polyurethane comprised of the reaction product of (1) a hydroxyl terminated polyester intermediate, (2) a polyisocyanate, and (3) a glycol chain extender; wherein the polyester intermediate is comprised of repeat units derived from a 1,3-propylene glycol component and a dicarboxylic acid wherein the 1,3-propylene glycol component comprises a bio-based 1,3-propylene glycol; wherein the polyester intermediate has a number average molecular weight from 500 to 10,000; and wherein the polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender. This thermoplastic polyurethane is unique as it has a greatly reduced tendency to bloom and is prepared from a renewable material.
| Moulded parts consisting of reinforced polyurethane urea elastomers and use thereof|
The invention relates to moulded parts provided with reinforcing materials and consisting of polyurethane urea elastomers having defined urea and urethane contents, and to the use thereof.. .
| Hydrophilic polyester polycarbonate polyols for high temperature diesel applications|
Embodiments of the invention generally relate to polyols having resistance to hydrocarbons and articles made therefrom. More specifically, embodiments of the invention generally relate to hydrophilic polyester-polycarbonate polyols having resistance to hydrocarbons at high temperatures and articles made therefrom.
| Solvent free polyurethane laminating adhesive with high oxygen transfer rate|
A solventless two component laminating adhesive comprising a part a prepolymer and a part b curative. The prepolymer comprises a lower molecular weight polyether polyol and a higher molecular weight polyether polyol.
| Plasticizers for resin compositions and resin compositions including the same|
Provided are a plasticizer for a resin composition including any one or more selected from a polyvinyl chloride resin, a polyurethane resin, an epoxy resin, a polycarbonate resin or a biodegradable resin, which has excellent mechanical properties such as tensile strength, elongation and hardness, and shape processability, and particularly has excellent flexibility at low temperatures, does not cause bleeding because compatibility with the resins is good, and has excellent transparency, heat resistance, cold resistance and durability, and a resin composition including the same.. .
| Process for the preparation of polyether polyols|
The invention relates to a method for producing polyether carbonate polyols, wherein (i) in a first step a polyether carbonate polyol is produced from one or more h-functional starter substances, one or more alkylene oxides, and carbon dioxide in the presence of at least one dmc catalyst, and (ii) in a second step the polyether carbonate polyol is chain-extended with a mixture of at least two different alkylene oxides in the presence of at least one dmc catalyst. The invention further relates to polyether carbonate polyols that contain a terminal mixed block of at least two alkylene oxides and to a method for producing soft polyurethane foams, wherein a polyol component containing a polyether carbonate polyol according to the invention is used..
| Closed-cell polyurethane structure method and system|
A container is provided that may include a transparent portion that reveals an interior portion of the container, an access aperture communicating with the interior portion of the container, and a lid adjacent the access aperture. A first component is placed into the interior portion.
| Hydrophilic polyurethane foam with low volume swelling|
The invention relates to a specific composition comprising a) isocyanate-functional prepolymers obtainable by reaction of a1) aliphatic diisocyanates with a2) di- to hexa-functional polyalkylene oxides having an ethylene oxide content of 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, b) an aqueous polyurethane suspension, an aqueous polyacrylate suspension or aqueous silica sols, especially for production of hydrophilic, aliphatic polyurethane foams. The invention further provides a process for producing a hydrophilic, aliphatic polyurethane foam, based on the inventive composition, a polyurethane foam obtainable by the process and a wound dressing comprising the polyurethane foam..
| Water-swellable polymers|
A water-swellable linear polyurethane polymer is formed by reacting a polyethylene oxide (e.g. Peg 4000 to 35,000), a difunctional compound (e.g.
| Golf ball with translucent cover|
The present invention is directed a golf ball comprising a core and a cover and an optional intermediate layer disposed between the core and cover, wherein at least one of the core and the intermediate layer comprises any pantone matching system color including blue, green, yellow, pink, or orange having an l* value of about 80 or less; and wherein the cover comprises a translucent thermoset polyurethane material and an amount of pigment or dye such that the cover has any pantone matching system color including blue, green, yellow, pink, or orange that has an l* value of about 80 or less. The thermoset polyurethane material may be formed from an aliphatic isocyanate-based composition..
| Polishing pad and manufacturing method therefor|
Provided are a polishing pad which remedies the problem of scratches occurring when a conventional hard (dry) polishing pad is used, which is excellent in polishing rate and polishing uniformity, and which can be used for not only primary polishing but also finish polishing, and a manufacturing method therefor. The polishing pad is a polishing pad for polishing a semiconductor device, comprising a polishing layer having a polyurethane-polyurea resin foam containing substantially spherical cells, wherein the polyurethane-polyurea resin foam has a young's modulus e in a range from 450 to 30000 kpa, and a density d in a range from 0.30 to 0.60 g/cm3..
| Flame resistant composition, fiber reinforced polyurethane based composite comprising the flame resistant composition and the use thereof|
The present invention relates to a flame-resistant composition, a fiber-reinforced polyurethane composite comprising the flame-resistant composition and the use thereof. In particular, the invention describes a flame-resistant polyurethane-composite forming composition and a combustion-modified, fiber-reinforced polyurethane composite comprising the flame-resistant polyurethane-composite forming composition, for applications in vehicles and for building products.
| Energy cell temperature management|
A temperature regulation and management system is provide that has an inner wall and an outer wall forming a space for accommodating a phase change material (pcm) with the space between the walls, in one or both of the walls, or a combination of such locations. The inner wall is in contact with an object that requires temperature regulation within a specified operating range, such as a vehicle battery pack.
| Optical article including an antireflection coating having improved crack-resistance properties under mechanical stress|
The invention relates to an optical article including a transparent organic glass substrate, a primary coating including polyurethane and particulate silica, an abrasion-resistant coating, and an antireflection coating, said coatings, and in particular the antireflection coating, having improved crack resistance when the optical article is subjected to high amounts of mechanical stress, e.g., during edge-grinding and the mounting of lenses in eyeglass frames. The invention also relates to a method for manufacturing such an article..
| Acoustical vinyl flooring and methods of manufacture|
An acoustical vinyl tile having an integral acoustical layer is disclosed. The vinyl tile includes a vinyl portion, an acoustical portion, and an adhesive layer for fixing the vinyl portion to the acoustical portion.
| Closed-cell polyurethane structure method and system|
A container is provided that may include a transparent portion that reveals an interior portion of the container and an access aperture communicating with the interior portion of the container. A first component is placed into the interior portion.
| Cosmetic polyurethaneurea copolymer composition|
The present invention relates to a cosmetic polyurethaneurea copolymer composition comprising a solvent, a polyurethaneurea and a copolymer, said polyurethaneurea being obtainable by reacting a single polyisocyanate component containing at least 75 mol % of ipdi, at least one polymeric polyol component, at least one hydrophilizing component and a single diamine component containing at least 75 mol % of ipda, and said copolymer being obtainable by reaction of at least one monomer including acrylate groups with at least one further monomer. The invention further provides for the use of the cosmetic composition in cosmetics and a method for shaping hairstyles using the cosmetic composition..
| Encapsulated load-securement bulkhead and method of manufacture|
An encapsulated bulkhead for use as a void filler to secure and protect cargo loads during transportation, such as in rail cars or trucks, is described. The encapsulated bulkhead includes a bulkhead member and an encapsulation or coating.
| Golf balls including a crosslinked thermoplastic polyurethane cover layer having improved scuff resistance|
This disclosure relates to golf balls having a cover layer made from a crosslinked thermoplastic polyurethane elastomer. The crosslinked thermoplastic polyurethane elastomer includes crosslinks located in the hard segments, where the crosslinks being the reaction product of unsaturated bonds located in the hard segments catalyzed by a free radical initiator.
| Coated leather|
A coated leather, in particular split cowhide leather, has a preferably nubuck-like appearing surface structure. The coating is formed with a surface layer formed with a mechanically and moisture-stable polymer and bonded to the surface of the leather or split leather by a polymer-based bonding layer.
|Antimicrobial hydrogel formulation|
A hydrogel formulation is provided for use with a film. The hydrogel formulation includes a medical-grade hydrogel and an antimicrobial substance.
|Blends of micronized polyphenylene ether and thermoplastic polyurethanes blend|
Also disclosed are processes for preparing such blends as well as articles derived therefrom.. .
|Method for filling concrete block cavities with expanding foam insulation|
The invention described herein generally pertains to the use of low boiling point, low vapor pressure blowing agents with froth polyurethane or polyisocyanurate foams to achieve superior cavity filling than when using conventional higher vapor pressure or more ozone-depleting blowing agents.. .
|Polyester polyol-containing polyurethane systems having improved hydrolytic stability|
An isocyanate reactive composition for making a polyurethane foam includes a tertiary amine urethane catalyst comprising a di(c1-c4)alkyl fatty alkyl amine and a polyester polyol. The use of one or more of fatty alkyl tertiary amine serves to reduce hydrolysis of the polyester polyol in the isocyanate reactive composition..
|Biodegradable polyurethane/urea compositions|
The present invention relates to biocompatible, biodegradable polyurethane/urea polymeric compositions that are capable of in-vivo curing with low heat generation to form materials suitable for use in scaffolds in tissue engineering applications such as bone and cartilage repair. The polymers are desirably flowable and injectable and can support living biological components to aid in the healing process.
|Prophylactic device and methods of use|
A prophylactic device having a base substrate for adhering to a glans of a penis, and a reservoir cap having a reservoir and a flange for adhering to the base substrate. The base substrate may be a thin polyurethane film coated with a pressure-sensitive adhesive for adhering to the skin of the glans.
|Polymers containing metathesized natural oil derivatives|
Polymers containing natural oil derivatives are generally disclosed. Methods of forming such polymers are also generally disclosed.
|Polyurethane on the basis of soft thermoplastic polyurethane|
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.. .
|Polyurethane foam elastomers for high temperature applications|
Molded elastomeric polyurethane foams suitable for use as gasketing and sealing devices for use in hot environments are disclosed. The foams are the reaction product of an aromatic polyisocyanate with an isocyanate-reactive composition that includes one or more polyether polyols, certain diol chain extenders, and certain low equivalent weight hydroxyl-containing cross-linkers.
|Rigid polyurethane and polyisocyanurate foams based on fatty acid modified polyetherpolyols|
A process for producing rigid polyurethane foams or rigid polyisocyanurate foams is provided. The process contains the reaction of polyisocyanate, fatty acid modified polyetherpolyol, polyetherpolyol, optionally flame retardant, blowing agent, catalyst, and optionally further auxiliary and/or admixture agent, wherein the polyetherpolyol is obtained by a process containing reacting orthotolylenediamine and optionally further co-starters with alkylene oxide containing ethylene oxide wherein the ethylene oxide content is more than 20 wt %, and then reacting the reaction product with alkylene oxide containing propylene oxide wherein the 1,2-propylene oxide content is more than 20 wt %, in the presence of a catalyst..
|Polyurethane and polyisocyanurate rigid foams for roofing insulation|
Polyurethane foams having a nfpa 101 class b rating (astm e-84) which pass the fm 4450 calorimeter test are produced by reacting: (a) an organic polyisocyanate, (b) at least one polyether polyol or polyester polyol with a nominal hydroxyl functionality of at least 2.0, (c) a blowing agent composition and (d) at least one halogen-free flame retardant. The blowing agent composition includes: (1) no more than 10% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an lel less than 2% by volume in air, and/or (2) a hydrocarbon having an lel greater than 2% by volume in air, and (3) up to 1% by weight, based on total weight of foam-forming composition, of water..
|Ultra clear scratch resistant coating and laminate|
An ultra-clear rub and scratch resistant aqueous based coating that provides barrier properties to film and is receptive to flexo, litho, and gravure printing inks includes polyurethane acrylic hybrid dispersion in combination with melamine formaldehyde resin and micronized wax. The coating composition can be formulated with little or no n-methylpyrrolidone.
|Reinforced thermoplastic resin composition and molded article|
A reinforced thermoplastic resin composition containing: 50 to 90% by weight of a polycarbonate resin; 10 to 50% by weight of a graft copolymer in which a polymer including an aromatic alkenyl compound monomer unit and a vinyl cyanide compound monomer unit is grafted to a rubber polymer; 61 to 129 parts by weight of a grass fiber which has been surface-treated with a water-soluble polyurethane, relative to the total of 100 parts by weight of the polycarbonate resin and the graft copolymer; 0.5 to 20 parts by weight of a glycidyl ether unit-containing polymer; and 10 to 40 parts by weight of a phosphoric acid ester-based flame-retardant agent.. .
|Process for producing composite profiles|
Wherein the starting components of the rigid polyurethane foam do not comprise any inorganic fillers.. .
|Pipeline with heat-storing properties|
The present invention relates to a process for producing pipelines with heat-storing properties, in which a) organic polyisocyanate is mixed with b) at least one polymeric compound having at least two isocyanate-reactive hydrogen atoms, c) optionally chain extender and/or crosslinker, d) catalyst, e) wax and f) optionally other assistants and/or additives, to give a first reaction mixture, and the first reaction mixture is applied to a pipe and allowed to react fully to give a first polyurethane layer. The present invention further relates to a pipeline with heat-storing properties obtainable by such a process..
|Articles comprising rubber, thermoplastic polyurethane and engineering polymer|
Item comprising thermoplastic polyurethane, which has, respectively, direct-contact adhesive bonding not only to rubber but also to engineering plastic.. .
|Polyurethane resin, method of manufacturing the same, and its usage|
The method of manufacturing a polyurethane resin includes subjecting a (meth)acryloyl(oxy) group-containing polyurethane resin and a hydroxyl group-containing thiol to a michael addition reaction in a solvent to provide a hydroxyl group-containing polyurethane resin.. .
Disclosed are grips and methods of making grips for use with the handle of an article, and in particular for use with fishing poles and golf clubs. Grips preferably include a multi-layered gripping member and an inner sleeve or mounting body.
|Flexible piezocapacitive and piezoresistive force and pressure sensors|
Flexible force/pressure sensors for producing electrical output signals proportional to forces or pressures exerted on the sensor include a thin, elastically deformable foam pad laminated between a pair of electrically conducive fabric sheets. A piezocapacitive embodiment of the sensor utilizes an elastically deformable perforated open-cell polyurethane foam pad preferably saturated with glycerin to increase the capacitance of the sensor.
|Aqueous polyurethane resin dispersion and coating composition comprising the same|
The present invention is to provide an aqueous polyurethane resin dispersion in which a polyurethane resin s dispersed in an aqueous medium, wherein the polyurethane resin is obtained by reacting (a) a polyurethane prepolymer which is obtained by reacting (a) a polyisocyanate compound, (b) a polyol compound containing a polycarbonate polyol having a number average molecular weight of 800 to 3500, and (c) an acidic group-containing polyol compound, and (b) a chain extender, being dispersed in an aqueous medium, (b) the chain extender contains a polyamine compound having three or more in total of an amino group(s) and/or an imino group(s) per molecule, and the polyurethane resin has, each based on a solid content, a content of urethane bonds of 5 to 10% by weight, a content of urea bonds of 2 to 7% by weight, a content of carbonate bonds of 15 to 40% by weight, has neither ether bond nor ester bond, has a density of cross-linking points of 1.0×10−4 to 1.0×10−3 mol/g, an acid value of 12 to 20 mg koh/g, and a weight average molecular weight of 100,000 or more.. .
|Hydrophobic polyester polycarbonate polyols for use in polyurethane applications|
Disclosed are hydrophobic polyester-polycarbonate polyols which are the reaction product of (a) a polyester polyol and (b) one or more polycarbonate polyols. The polyester polyol (a) is the reaction product of: (i) one or more hydrophobic monomers, (ii) one or more organic acids, and (iii) one or more alcohols having an oh functionality of 2 or more.
|Moisture curable compositions and low surface energy coating compositions made therefrom|
A one-package moisture curable composition is provided. The composition comprises, by weight percentage based on the dry weight of the composition, from 10 to 99% at least one silane terminated polyurethane and from 1 to 90% at least one silane terminated polysiloxane; and the composition, after moisture cured, forms a surface whose water contact angle is larger than 101°.
|Silicone surfactant for making flexible foams|
A polyurethane foam-forming composition having a surfactant with the formula r13si(osir2g)xosir33, where each r1, r2, and r3 is independently an alkyl radical having from 1 to 10 carbon atoms; g is a group having the formula —r4(or5)ya, where r4 is a divalent alkyl radical having from 2 to 4 carbon atoms, r5 is ethylene or propylene, a is a hydroxyl group, and x is an number from 1 to 5, and y is an number from 0 to 10 is provided which can be used to form polyurethane foams having a large open cell concentration, improved dry and wet compression sets, and low fugitive emissions.. .
|Storage-stable polyurethane prepregs and mouldings produced therefrom composed of a polyurethane composition with liquid resin components|
The invention relates to storage-stable polyurethane prepregs and mouldings produced therefrom composed of polyurethane compositions with liquid resin components, preferably liquid polyols.. .
To provide elastic fabric that has comfortable wear and fit even in thin and light fabric by using a high-powered polyurethane elastic fiber that has at least 1.5 times the active force and recovery per unit fineness at the time of 100 to 200% elongation compared to conventional polyurethane elastic fiber. Resolution means an elastic fabric comprising a polyurethane elastic fiber made of a polyol, with a molecular weight between 450 and 1600 with a ratio of weight average molecular weight to number average molecular weight of at least 1.8, an organic diisocyanate compound, and a diamine compound..
|Process to manufacture thick layers of radiation cured adhesives|
The invention relates to a process to manufacture an adhesive layer in an easy to handle process, whereby the adhesive is applied in a molten state to a substrate in an amount to form a layer of 150 to 5000 μm and the adhesive is cured by uv-radiation whereby the adhesive comprises a polyurethane bearing at least one unsaturated curable group in the chain and the radiation source is preferably an uv-led.. .
|Cleaning blade, cleaning device, process cartridge, and image forming apparatus|
Provided is a cleaning blade having at least a portion that comes in contact with a member to be cleaned is configured of a member that contains polyurethane rubber, and that has an endothermic peak top temperature obtained by differential scanning calorimetry in a range of from 180° c. To 220° c..
|Pliable thermal container|
Pliable thermal containers interchangeably serve for containing cold or hot items, and are manufactured in polyurethane or eva foamed materials, are struck resistant, and maintain a structure that allows them to remain upright and resist certain loads. The containers solve durability issues, a foamed material is used, and comprises unicellular air bubbles that provide thermal isolation properties and at the same time, during molding, this material attaches to a plasticized textile inner coating located at a mold piston for forming an interference zone.
|Compound membrane and acoustic device using same|
The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyarylate film, and a thermoplastic polyurethane elastomer attached to one surface of the polyarylate film..
|Air brake tubing and compositions for making the same|
Air brake tubing is provided having an air brake tube body comprising at least one layer formed from a composition comprising a copolyester, polyethylene terephthalate or polybutylene terephthalate; and a thermoplastic polyurethane.. .
|Antiseptic appicator having hydrophilic foam for use with antiseptic solutions|
An applicator having a hydrophilic foam that is suitable for use with antiseptic solutions may be a hydrophilic polyurethane foam that does not reduce the amount of active ingredient in the solution as it passes through the foam so that it can be applied to the skin. The foam may be used to deliver antiseptics solutions such as octenidine salts, chlorhexidine salts, or any cationic molecule to the skin.
|Antiseptic appicator having hydrophobic foam for use with antiseptic solutions|
An applicator having a hydrophobic foam that is suitable for use with antiseptic solutions may be a hydrophobic polyurethane foam that does not reduce the amount of active ingredient in the solution as it passes through the foam so that it can be applied to the skin. The foam may be used to deliver antiseptics solutions such as octenidine salts, chlorhexidine salts, or any cationic molecule to the skin.
|Leak-free american football|
Provided is a leak-free american football, which has a polyurethane foam having a shape of an american football; a covering formed on an exterior surface of the polyurethane foam and having a seam; multiple pairs of lacing holes formed in the covering along two opposite sides of the seam, and a lace passing through the multiple pairs of the lacing holes to close the seam, such that the polyurethane foam is covered by the covering and the lace. Since the polyurethane foam is solid and elastic, the leak-free american football can maintain a desired size, shape and bounce without the need for inflation, thereby improving the stability and durability..
|Toner and method for producing toner|
To provide a toner (x), which contains toner particles, each toner particle contains: a core phase (q) containing a crystalline resin (a); and a shell phase (s) provided on a surface of the core phase (q), where the shell phase (s) contains a crystalline polyurethane resin (b), wherein maximum peak temperature (ta) of heat of melting of the crystalline resin (a) is 40° c. To 70° c., and maximum peak temperature (tu) of heat of melting of the crystalline polyurethane resin (b) is 50° c.
|Non-resonant two-photon absorption recording material, non-resonant polymer two-photon absorption optical information recording medium, and recording/reproducing method|
The present invention provides a non-resonant two-photon absorption recording material containing a non-resonant polymer two-photon absorption compound, and the non-resonant two-photon absorption recording material wherein the main chain of the non-resonant polymer two-photon absorption compound contains at least one member selected from polystyrene, polyacrylate, polymethacrylate, polyester, polyurethane, polyether and polyimide, and also provides an optical information recording medium having a recording layer containing the recording material.. .
|Footwear parts gluing process using powder adhesive|
A process of gluing footwear parts using a powder adhesive that eliminates the conventional stages of drying required after the application of liquid adhesive to the substrate surface and of cooling to solidify the glue after pressing is disclosed herein. The process comprises the stages of preparing the surface and removing impurities from substrates by applying a slow-drying compound featuring bonding properties; applying the polyurethane-base powder adhesive with a grain size between 30 and 200 microns by dispersing it with pistols removing the excess adhesive; reactivating the powder adhesive applied to the substrate surface at temperatures between 60° and 80° c.; joining the substrate surfaces that received the adhesive, and pressing..
|Dispersions of polyurethanes, their preparation and use|
Weight % ages being based on total polyurethane (a), in printing inks.. .