Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.

Abstract: The present invention provides a cleaner composition having excellent cleaning properties and appropriate drying properties. The present invention is a cleaner composition including: (A) a hydrofluoroolefin having a boiling point of 30° C. or more and less than 100° C.; and (B) at least one of a perfluoropolyether having a boiling point of 100° C. or more and a hydrofluoroolefin having a boiling point of 100° C. or more, where a mass ratio of the component (A) and the component (B) is 99:1 to 55:45.

Abstract: Methods for forming elastomeric polyurethane articles are provided in which an isocyanate component including an isocyanate prepolymer is mixed with an isocyanate-reactive component having a viscosity ranging from 50,000 to 200,000 centipoise as measured by ASTM standard D2196, and wherein is applied as one or more layers onto a surface of a carrier substrate at an application rate ranging from 0.5 to 20 g/sec, with each one of said applied one or more layers independently having a thickness ranging from 0.2 and 10 millimeters and having a total thickness ranging from ranging from 0.2 to 60 millimeters. The applied layers are cured in the absence of added heat via an exothermic reaction to form the elastomeric polyurethane article having an abrasion resistance ranging from 20 to 250 mm3, a hardness ranging from 60 Asker C to 90 Asker C, and a density ranging from 330 and 1000 kg/m3.

Abstract: The invention relates to a thermally insulated conduit pipe, comprising at least one medium pipe, at least one thermal insulation arranged around the medium pipe, and at least one outer jacket arranged around the thermal insulation, wherein the outer jacket possibly comprises a barrier made of plastic, and wherein the thermal insulation comprises a foam, the cell gas of which contains at least 10 vol % HFOs. Such conduit pipe has good insulating behavior, good environmental balance, and is easily producible.

Abstract: Flexible polyurethane foams are characterized in having slow recovery times, low foam densities and very low compression sets. The foams are useful in human comfort applications such as pillows and mattresses.

Abstract: Polyurethane foam-forming compositions, methods of producing polyurethane foams, polyurethane foams produced from such compositions made by such methods, as well as isocyanate-reactive compositions. The polyurethane foam-forming compositions include a polyol blend, a blowing agent composition, and a polyisocyanate. The polyol blend includes an aromatic amine-initiated polyether polyol, a saccharide-initiated polyether polyol, and an aromatic polyester polyol and has a content of —C2H4O— units of 3 to 6% by weight, based on the total weight of the polyurethane foam-forming composition. The blowing agent composition includes a hydrochlorofluoroolefin and a carbon dioxide-generating chemical blowing agent.

Abstract: Polyurethane foam-forming compositions, methods of producing polyurethane foams, polyurethane foams produced from such compositions made by such methods, as well as isocyanate-reactive compositions. The polyurethane foam-forming compositions include a polyol blend, a blowing agent composition, and a polyisocyanate. The polyol blend includes an aromatic amine-initiated polyether polyol, a saccharide-initiated polyether polyol, and an aromatic polyester polyol and has a content of —C2H4O— units of 3 to 6% by weight, based on the total weight of the polyurethane foam-forming composition. The blowing agent composition includes a hydrochlorofluoroolefin and water.

Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.

Abstract: A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; and (vii) optionally, other additives.

Abstract: Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition.

Abstract: The present invention relates to mixtures of 1,1,1,4,4,4-hexafluorobutene (1336mzzm) and 1-chloro-3,3,3-trifluoropropene (1233zd). The blends are useful as blowing agents for polymer foam, solvents, aerosol propellants and heat transfer media.

Abstract: Polyol premixes and thermally insulating rigid polyurethane foams, such as those that can be used as a thermal insulation medium in the construction of refrigerated storage devices, are disclosed. A polymer polyol having a OH number of greater than 260 mg KOH/g is utilized. The resulting polyurethane foams can exhibit improved thermal insulation properties without sacrificing other important physical and processing properties.

Abstract: Polyurethane/polyisocyanurate foam insulation described herein is derived from a composition that contains an organic polyisocyanate, an isocyanate reactive material containing at least about 20% by weight, based on the total weight of the composition, of an aromatic polyester polyol, a hydrocarbon blowing agent, a first catalyst selected from the group consisting of a carboxylate salt of an alkali metal, a carboxylate salt of an alkaline earth metal, a carboxylate salt of a quaternary ammonium, and combinations thereof, and a second catalyst comprising a non-reactive tertiary amine, wherein a molar ratio of the first catalyst to the second catalyst is less than about 1.25, the composition gels quickly, and the composition has an isocyanate index greater than about 175. Such an insulating foam has a ratio of thermal conductivity at 75° F. to thermal conductivity at 25° F. between about 0.98 and about 1.10.

Abstract: A direct and simple method to control cell size in a polyurethane foam is disclosed. Polyurethane foam is made by mixing prepolymer with foam-forming ingredients comprising isocyanate and water which react to give carbon dioxide. The reaction is driven by a catalyst and results in a foam structure with cells of a particular size. Using the addition of a pre-determined amount of mineral oil, the coalescence of neighboring cells of the foam structure may be advantageously controlled to form a cell structure with a desired average cell size.

Abstract: Disclosed herein is a method for producing polyurethane or polyisocyanurate foams. The method involves reacting a composition (Z1) with at least one polyisocyanate, and occurs in the presence of at least one nucleating agent and a blowing agent, in which the nucleating agent and the blowing agent are mixed to obtain a composition (Z2) that is added to the composition (Z1) before it is reacted with the at least one polyisocyanate. The composition (Z1) contains (i) 100 parts by mass of a composition (ZP) including at least one polyol and at least one catalyst that catalyzes formation of a urethane, urea or isocyanuarate bond, and (ii) from 0.05 to 10 parts by mass of a surfactant TD having an HLB value below 6 and no silicon atom.

Abstract: A composite foam is provided having silica aerogel particles dispersed in a closed cell polymeric foam. The silica aerogel particles are included in a volume fraction between 2 and 60%, and the composite foam has a thermal conductivity of 40 kW/mK or less and a density of 60 kg/m3 or less. In another embodiment, a composite foam is provided having a perforated closed cell polymeric foam and 2-60% hydrophobic silica aerogel particles by volume with a particle size distribution of 1 to 50 ?m, where the composite foam has a thermal conductivity of 30 kW/mK or less, a density of 20-45 kg/m3, and an air permeability of 20-40 cubic feet per minute.

Abstract: Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.

Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of HFO-E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene with a second compound selected from the group consisting of methyl formate and HFO-E-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed are processes of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents; of producing refrigeration by using such azeotropic or azeotrope-like compositions; of producing cooling; of producing heating; of using such azeotropic or azeotrope-like compositions as solvents; of producing an aerosol product by using such azeotropic or azeotrope-like compositions; of using such azeotropic or azeotrope-like compositions as heat transfer media; of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions; and of using such azeotropic or azeotrope-like compositions as dielectrics.

Abstract: Polyurethane/polyisocyanurate foam insulation described herein is derived from a composition that contains an organic polyisocyanate, an isocyanate reactive material containing at least about 20% by weight, based on the total weight of the composition, of an aromatic polyester polyol, a hydrocarbon blowing agent, a first catalyst selected from the group consisting of a carboxylate salt of an alkali metal, a carboxylate salt of an alkaline earth metal, a carboxylate salt of a quaternary ammonium, and combinations thereof, and a second catalyst comprising a non-reactive tertiary amine, wherein a molar ratio of the first catalyst to the second catalyst is less than about 1.25, the composition gels quickly, and the composition has an isocyanate index greater than about 175. Such an insulating foam has a ratio of thermal conductivity at 75° F. to thermal conductivity at 25° F. between about 0.98 and about 1.10.

Abstract: Example devices, systems, and methods disclosed herein relate to a controller configured to control pressure maintenance in a fire protection system. A controller may be configured to control a fire pump to provide a first level of water pressure and to control operation of a jockey pump that is coupled in parallel with the fire pump to provide a second level of water pressure that is less than the first level. The controller is further configured to receive, from a pressure sensor coupled to the fire protection system, an output representative of the water pressure. The controller is configured to provide instructions to initiate the jockey pump based on a pressure value associated with the output being below a first value, and to provide instructions to initiate the fire pump based on the pressure value being below a second value that is less than the first value.

Abstract: Disclosed are a dynamic non-wicking PU foam and preparation and application thereof The PU foam is prepared from polyether polyol, toluene-2,4-diisocyanate, non-wicking additive and auxiliary agent. The dynamic non-wicking additive is composed of carboxylic acids, amines and alkyl alcohols in any proportion. The auxiliary agent is composed of silicone surfactant, amine promoter, tin catalyst, pigment and water. The dynamic non-wicking PU foam has a high stability and an extremely non-wicking effect. The shoes made of the dynamic non-wicking PU foam also have extremely good dynamic non-wicking and waterproof effects, thus ensuring both comfort and stability of quality.

Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of HFO-E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene with a second compound selected from the group consisting of methyl formate and HFO-E-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed are processes of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents; of producing refrigeration by using such azeotropic or azeotrope-like compositions; of producing cooling; of producing heating; of using such azeotropic or azeotrope-like compositions as solvents; of producing an aerosol product by using such azeotropic or azeotrope-like compositions; of using such azeotropic or azeotrope-like compositions as heat transfer media; of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions; and of using such azeotropic or azeotrope-like compositions as dielectrics.

Abstract: The use of bonded siloxane block polymers of the general average formula (I) MaM1bDcD1d TeQfGg as additive in the production of PUR foam using at least one polyol component and at least one isocyanate component, wherein the polyol component used has an average hydroxyl number, determined to DIN 53240-1:2012-07, of >56 to <450 mg KOH/g, preferably 57-300 mg KOH/g, and wherein the PUR foam is produced at an isocyanate index of 65 to 108, is described.

Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is 2,4,4,4-tetrafluorobutene-1 alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), or a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.

Abstract: A polyisocyanurate-based coating for offshore applications is provided. The coating is a syntactic coating, obtainable by reacting a polyisocyanate compound with a compound containing isocyanate-reactive hydrogen atoms in the presence of a trimerisation catalyst and hollow objects, at an isocyanate index of at least and preferably more than 2000.

Abstract: The present invention is directed towards a method of stabilizing thermosetting foam blends such as polyurethane poly blends containing a blowing agent with negligible (low or zero) ozone-depletion and low GWP based upon unsaturated halogenated hydroolefins in which one or more ester is added to the thermosetting foam blends. The thermosetting foam blends typically in clued: polyol(s); surfactant(s); catalyst(s); flame retardent(s); organic acid inhibitor(s)/stabilizer(s); carbon dioxide generating agent(s). The addition of the one or more esters to the thermosetting foam blends was unexpectedly found to result in blends which were stable over time and the resulted foams have a uniform cell structure with little or no foam collapse.

Abstract: A termite bait includes a plurality of cellulosic food material pieces palatable to termites embedded within a water resistant polyurethane foam matrix. Another termite bait includes a plurality of cellulosic food material pieces embedded within a water-absorbent polyurethane foam matrix. Yet another termite bait includes at least one cellulosic food material piece encapsulated within a water resistant polyurethane foam coating. Such termite baits can be used alone or in a monitoring device or other termite control device. Another termite control device includes a container, a cellulosic food material within the container and a water resistant polyurethane foam positioned to separate the food material from its environment. The container can contain a termite bait as described above or can include a chamber containing a cellulosic food material and at least one pocket containing a polyurethane foam barrier to reduce intrusion of water through the pocket to the food material.

Abstract: According to one embodiment, a halogen free roof system is described. The roof system includes a structural deck that is positioned above joists or other support members. Polyisocyanurate foam insulation is positioned atop the structural deck. The polyisocyanurate foam insulation has an isocyanate index greater than 200 and includes a polyisocyanurate core having a halogen free fire retardant. A water proof membrane is positioned atop the polyisocyanurate foam insulation. The polyisocyanurate core is able to form a sufficiently stable char when exposed to flame conditions such that the polyisocyanurate core is able to pass the ASTM E-84 test.

Abstract: The present invention relates to mixtures of 1,1,1,4,4,4-hexafluorobutene (1336mzzm) and 1-chloro-3,3,3-trifluoropropene (1233zd). The blends are useful as blowing agents for polymer foam, solvents, aerosol propellants and heat transfer media.

Abstract: The invention provides foam forming methods that comprise: (a) preparing a foamable system comprising at least one hydrohaloolefin; and (b) ensuring either (i) the substantial absence of long-term decomposition-inducing contact between said hydrofluoroolefin and an amine-containing catalyst; (ii) that an effective amount of surfactant is available in the system under conditions which prevent long term exposure of the surfactant to a long-term decomposition reaction environment; or (iii) a combination of (i) and (ii). Related methods, foamable systems and foams are also disclosed. Preferred embodiments provide polyurethane and polyisocyanurate foams and methods for the preparation thereof, including closed-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The preferred foams are characterized by a fine uniform cell structure and little or no foam collapse.

Abstract: An aqueous cationic polyurethane dispersion for waterborne digital print and other applications comprising an aqueous dispersion of polyurethane having properly positioned tertiary amino groups, e.g., tethered tertiary amino group separated from backbone by at least two intervening atoms or terminal tertiary amino groups with multiple tertiary amino groups per terminus, where said amino groups are optionally partially quaternized and/or neutralized.

Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.

Abstract: The present invention aims to provide a rigid polyurethane resin for cutting, which has high heat resistance, no scorching, and reduced expansion due to absorption of moisture in the air. The rigid polyurethane resin-forming composition (P) for cutting of the present invention includes: a polyol component (A); an isocyanate component (B); an inorganic filler (C); and a dehydrating agent (D). The polyol component (A) includes: 45 to 99% by weight of a polyphenol (j) alkylene oxide adduct (a), the polyphenol (j) having k functional groups where k is an integer of 2 or 3; and 1 to 55% by weight of a polyol (b). The polyphenol (j) alkylene oxide adduct (a) includes a total of not more than 39% by weight of a polyphenol (j) alkylene oxide adduct (ak) with at most k moles of alkylene oxide, based on 100% by weight of the polyphenol (j) alkylene oxide adduct (a), and has a hydroxyl value of 100 to 295 mg KOH/g.

Abstract: Various uses of fluorinated alkenes, particularly HFO-1234 and HFCO-1233zd in a variety of applications, including refrigeration, foams, blowing agents, aerosols, propellants, solvent compositions, fire extinguishing and suppressing agents, extraction agents and catalyst deposition are disclosed.

Abstract: An isocyanate-terminated prepolymer C having an NCO content of from ?26% by mass to ?31.0% by mass is obtainable from the reaction of an isocyanate composition A having a viscosity at 25° C. of from ?60 mPas to ?800 mPas, comprising from ?25% by mass to ?60% by mass MDI and from ?40% by mass to ?75% by mass pMDI, wherein the sum of the amounts of those components is ?100% by mass, with a bifunctional polyester ether polyol B having an OH number of ?200 mg(KOH)/g and ?500 mg(KOH)/g, obtained from the reaction of a dicarboxylic acid/dicarboxylic acid derivative with at least one polyol and with an epoxide, wherein the polyester ether polyol B is used in amounts of from ?1.5% by mass to ?6.0% by mass, based on the sum of the masses of A and B. The invention further provides a PUR/PIR polymer produced from the prepolymer C, its use and composite elements based thereon.

Abstract: Composite materials and methods for their preparation are described herein. The composite materials include a polyurethane made from the reaction of at least one isocyanate and at least one polyol, and coal ash (e.g., fly ash). The composite materials are highly reactive systems such as through the use of highly reactive polyols, highly reactive isocyanates, or both. 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 at least one isocyanate, at least one polyol, coal ash, and a catalyst.

Abstract: Disclosed is a method of preparing a bio-based thermosetting foam material with improved properties, in particular improved flame retardant properties, which method includes the steps of a) producing a prepolymer by condensation of at least one phenolic compound and formaldehyde in a ratio of 1:1.0 to 3.0 using 0.15 to 5 wt % of an alkaline catalyst in the temperature range of 50 to 100° C. until the refractive index of the reaction mixture is 1.4990 to 1.5020, b) adding 2 to 40 wt % of at least one natural polyphenol at a temperature of 50 to 100° C., c) adding 2 to 10 wt % of one or more emulsifiers and mixtures thereof, d) adding 2 to 10 wt % of one or more foaming agents and mixtures thereof and e) adding 10 to 20 wt % of a curing agent and f) curing. All wt % being related to the amount of the raw materials used.

Abstract: The present invention relates to solvent/cleaner and heat transfer fluid compositions comprising at least one hydrochlorofluoroolefin (HCFO), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer. The HCFO of the present invention can be used in combination with co-agents including, hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs), hydrocarbons, ethers including hydrofluoroethers (HFEs), esters, ketones, alcohols, 1,2-transdichloroethylene and mixtures thereof.

Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234yf in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.

Abstract: A polyurethane foam is prepared from a reaction mixture that includes an aromatic isocyanate compound, and blowing agent, and a polyol that itself includes a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule. Use of the poly(phenylene ether) is associated with faster formation of polyurethane, and increased compression force deflection. The polyurethane is useful for forming articles including bedding, furniture, automotive interiors, mass transportation interiors (seating, padding, instrument panels, door panels, steering wheels, armrests, and headrests), flooring underlay (foam, rebond binder), packaging, textiles, lining and gasketing applications, acoustic dampening materials, and weather stripping.

Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.

Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.

Abstract: The present invention generally relates to polyurethane foam composition. In one embodiment, the present invention relates to polyurethane foam compositions that have increased and/or improved fire-retardant properties due to the inclusion of one or more liquid and/or solid fire-retardants. In another embodiment, the present invention relates to polyurethane foam compositions that have increased and/or improved fire-retardant properties due to the inclusion of one or more intumescent materials (e.g., expandable graphite (EG)). In still another embodiment, the present invention relates to polyurethane foam compositions that have increased and/or improved fire-retardant properties due to the inclusion of expandable graphite.

Abstract: The present invention relates to a composition in the form of a dispersion, a method for the manufacturing of said composition and uses thereof.

Abstract: A skin graft applicator with a handle member and a roller member is described for use in applying a skin graft to a patient. The skin graft applicator has a manipulator pad for positioning the skin graft, and a roller member for forcing air and fluid from underneath the skin graft ensuring the proper bond between graft and tissue.

Abstract: The invention relates to a method for producing foamed molded bodies comprising the steps of A) providing a mold, and B) introducing a foam-forming reaction mixture into the mold under variable pressure of injection, wherein the method is characterized in that the foam-forming reaction mixture has a fiber time of ?20 s to ?60 s.

Abstract: The present invention relates to a cleaning implement based on melamine formaldehyde foams comprising, abrasive particles and to a method of cleaning a hard surface with said cleaning implement.

Abstract: The present invention relates to poured-in place polyurethane foams and polyol premixes comprising 1-chloro-3,3,3-trifluoropropene (HFCO-1233zd) and one or more additional co-blowing agents.

Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.

Abstract: An embodiment of a closed-cell polymeric rigid foam may be made using a one-shot method and a reaction system that includes a hydrofluoroalkene physical blowing agent and a polyol mixture having an aminic polyol. The hydrofluoroalkene blowing agent has 3 to 5 carbon atoms and a boiling point between 10° C. and 40° C. at 1 atmosphere pressure. Embodiments of rigid foams may have high closed cell content and are particularly well suited for thermal insulation.