Abstract: Static fluid disinfecting system and related methods. Implementations of a method of disinfecting a fluid include statically contacting a fluid included in in a container with an open-celled foam where the open-celled foam is coated with a quaternary organosilane coating produced from a quaternary ammonium organosilane reagent where the fluid contains one or more microorganisms.

Abstract: A spray latex foam for filling wall cavities to enhance the sealing and insulating properties of a building is provided. The spray latex foam includes a latex system and a gaseous coagulating component. In at least one exemplary embodiment, carbon dioxide is included as a gaseous coagulating agent. One latex suitable for use in the spray foam is polyvinylidene chloride (PVDC), which possesses fire retardancy and environmental durability. However, a preferred latex is styrene-butadiene rubber (SBR). The latex system may also include a thixotropic agent, such as Laponite® RD synthetic clay. The spray latex foam is polyurethane-free. A method of preparing a spray latex foam that includes supplying a latex system and adding a gaseous coagulating component to the latex system is also provided.

Abstract: The invention relates to a process to foam a water-base adhesive wherein a gas is dissolved or generated under pressure in the water phase essentially without the formation of foam. To apply the adhesive in the form of foam, the pressurized adhesive is released through a valve onto a substrate at atmospheric pressure, whereby the dissolved gas separates as gas bubbles. The invention relates further to an apparatus for the implementation of said process comprising a pressure-tight container for the adhesive wherein an overpressure is provided through a first valve, and at the outlet of said container a drain valve is placed. The apparatus further comprises a pressure-tight acid vessel for the acid which is furnished with a second valve at its inlet The outlet of said vessel is connected through a third valve to the container.

Abstract: The present invention relates to methods for preparing biodegradable polymer stereocomplexes using a supercritical fluid-organic solvent system and polymer stereocomplexes prepared by such methods. The method of the present invention involves introducing two types of homopolymers having different stereostructures and a small amount of organic solvent into a reactor, adding a supercritical fluid thereto, followed by applying a specific temperature and pressure to form a polymer stereocomplex having a crystalline structure. According to the method of the present invention, biodegradable polymer stereocomplexes in the form of powder or porous foam having excellent thermal and mechanical stabilities can be prepared in a simple, economical and environmentally-friendly manner in a single process.

Abstract: To provide a method for producing a polyether polyol having a low viscosity and little odor, whereby when a rigid foam synthetic resin is produced, good strength and flame retardancy can be obtained. A method for producing a polyether polyol, which comprises ring-opening addition of an alkylene oxide to an initiator obtainable by reacting a phenol, an aldehyde and an alkanolamine, and which comprises a first step of ring-opening addition of at least one member selected from propylene oxide and butylene oxide to the initiator in the absence of a catalyst, and a second step of ring-opening addition of an alkylene oxide of which at least a part is ethylene oxide, to a reaction product of the first step, in the presence of a catalyst, wherein the proportion of ethylene oxide in the total amount of the alkylene oxide to be added to the initiator, is from 5 to 95 mol %.

Abstract: A foamable composition, foamed product and method of forming a foamed product are disclosed. The foamed product includes an epoxy resin crosslinked with a polycarboxylic acid to form a polymeric foam having cells filled with a blowing agent. The reaction between the epoxy resin and the carboxylic acid is catalyzed by a chromium (III) catalyst, particularly an active, carboxylated chromium salt, so as to speed the reaction at ambient temperature to allow the foam to set and cure so rapidly that, when applied to a vertical surface, the effects of gravity do not destroy the foam by pulling it down before the foam sets. Other ingredients preferably include a rheology modifier or thixotrope. The foams may be used for a wide variety of applications including sealing and/or insulating building structures.

Abstract: A process for producing a rigid foamed synthetic resin, which comprises reacting a polyol mixture (P) containing a polyol (A) and a polyol (B) and a polyisocyanate compound (I) in the presence of a blowing agent containing water, a catalyst, a foam stabilizer and a flame retardant. The polyol (A) is a polyether polyol having a hydroxyl value of from 56 to 250 mgKOH/g, obtainable by subjecting an alkylene oxide to ring-opening addition polymerization to a bisphenol compound. The polyol (B) is a polyether polyol having a hydroxyl value of from 100 to 800 mgKOH/g, obtainable by subjecting an alkylene oxide to ring-opening addition polymerization to a Mannich condensation product.

Abstract: A composition for forming a textured coating on drywall material, where the textured coating substantially matches a pre-existing acoustic texture material on the drywall material, comprises acoustic texture material and propellant material. The acoustic texture material comprises a base portion the base portion is capable of existing in a flowable state and a hardened state, and a particulate portion the particulate portion comprises discrete, visible particles of solidified urethane foam having irregular shapes. The propellant material comprises a hydrocarbon propellant. The particles of urethane foam are distributed throughout the acoustic texture material when the base portion is in the flowable state. The irregular shapes of the particulate portion are substantially the same when the base portion is in the flowable state and in the hardened state.

Abstract: The invention relates to the use of a composition as an agent for blowing a projected biocomponent polyurethane foam, said composition including 1-chloro-3,3,3-trifluoropropane and/or 2-chloro-3,3,3-trifluoropropene and at least one additional compound selected from among hydrochlorofluoroolefins, hydrofluoroolefins, hydrochloroolefins, hydrofluorocarbons, hydrochlorofluorocarbons, hydrocarbons, substituted or non-substituted ethers, substituted or non-substituted alcohols, substituted or non-substituted aldehydes, substituted or non-substituted ketones and substituted or non-substituted esters. Said composition has a boiling point greater than or equal to 20° C. The invention also relates to a method for manufacturing polyurethane foam on the basis of the use above and moreover relates to specific compositions that are appropriate for implementing the invention.

Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

Abstract: Prepare an extruded polymeric foam using a thermoplastic polymer composition of styrene-acrylonitrile copolymer having a copolymerized acrylonitrile comonomer content of 20 weight-percent or less, a mean acrylonitrile comonomer content that exceeds its median acrylonitrile comonomer content and an average copolymerized acrylonitrile comonomer distribution having a breadth at half-height that is greater than 2.5 weight-percent as measured at half peak height of a copolymerized acrylonitrile comonomer distribution curve for the styrene-acrylonitrile copolymer.

Abstract: The present invention relates generally to a patch including a micro fiber glass and a polymeric binder, where the mixture forms an in situ porous patch that allows for active filtration after application to a leak or hole in an air filter. The mixture can be pressurized with a propellant within a housing prior to application to a leak or hole in an air filter. The mixture can also be applied manually to a leak or hole in an air filter, without the need to be pressurized with a propellant within a housing.

Abstract: The present invention relates to a novel foam-forming composition suitable for rectal administration of locally-acting pharmaceutically active ingredients, and the product adapted to administer said foam-forming composition. Also, the present invention relates to a method for its preparation. According to the present invention a foam-forming composition is provided which exhibits a high expansion ratio and at the same time conferring optimal appearance of the formed foam to allow sufficient contact time of the active to the target site in the intestine in order to obtain optimal local effect. The composition according to the present inventions provides superior properties for the treatment of rectal diseases.

Abstract: The present invention relates to a biocompatible, resorbable polyurethane foam wound cover with open pores and an adjustable resorption rate having improved properties when used on skin or connective tissue wounds as well as a method of production of such a polyurethane foam wound cover.

Abstract: Provided is a process for producing a polyether polyol which can form low viscosity rigid foamed synthetic resins excellent in strength, dimensional stability and flame retardancy, can give a low viscosity polyol system solution containing water instead of HFCs as a blowing agent with good miscibility with isocyanate compounds and can form good rigid foamed synthetic resins by spraying. A polyether polyol (A) is produced by reacting a phenol component (molar ratio 1) selected from phenol and phenol derivatives having a hydrogen atom at one or more ortho-positions to the phenolic hydroxyl group, an aldehyde component (molar ratio 0.3 to 0.9) selected from formaldehyde and acetoaldehyde and an alkanolamine component (molar ratio 1.5 to 3.5) selected from monoethanolamine, diethanolamine and 1-amino-2-propanol and then adding an alkylene oxide to the resulting reaction product.

Abstract: A composition for forming a textured coating on drywall material, comprising acoustic texture material and propellant material. The acoustic texture material comprises a base portion and a particulate portion, where the particulate portion comprises at least one of urethane foam and melamine foam. The propellant material is at least one of DME and a hydrocarbon propellant.

Abstract: The present invention provides a vulcanized foamed rubber molded product which has surface smoothness equal to or higher than that of a non-foamed vulcanized rubber molded product, has excellent mechanical strength properties, compression set resistance and abrasion resistance and a non-foamed vulcanized rubber molded product which is superior in surface smoothness to a conventional non-foamed vulcanized rubber molded product and has excellent compression set resistance, mechanical strength properties and abrasion resistance, as well as a method of producing the same. The molded product of the present invention is characterized in that the amount of sulfur atoms present in the surface thereof is at least 1.2 times as high as the amount of sulfur atoms present in a cut face obtained by cutting the surface to a depth of 1.0 mm in the vertical direction.

Abstract: Sprayable polyurethane compositions contain particulate filler in both polyol and isocyanate components for a total content of minimally 30 weight percent of particulate filler and fibrous reinforcement. The isocyanate component is stable with respect to storage, and composite structures prepared therefrom exhibit high modulus and can be used as replacements for unsaturated polyester systems. Resin transfer molding systems employ the same components and produce molded parts with good physical properties.

Abstract: The present invention relates to a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one isocyanate-reactive component and water, optionally in the presence of at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, and an elongation of from about 30% to about 300%.

Abstract: The present disclosure provides a compound according to the formula: Rf1[CH(—O—CH(3-m)Rf2m)(—O—CF2—CFH—Rf3)]n ??[I] wherein n is 1 or 2, wherein m is 1, 2 or 3, wherein, when n is 1, Rf1 is selected from the group consisting of highly fluorinated alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein, when n is 2, Rf1 is selected from the group consisting of highly fluorinated alkylene groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein each Rf2 is independently selected from the group consisting of alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein at least one Rf2 is highly fluorinated; wherein each Rf3 is indep

Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-chloropropane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.

Abstract: Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious slurry is formed, the slurry is mixed with a gas such as air, and is subjected to mechanically created turbulence to generate gas bubbles and create a foam, which preferably is stabilized by a foam stabilizing agent such as polyvinyl alcohol present in the slurry. The foam is then conveyed to a nozzle or other suitable dispense point from which it is applied, for example sprayed, preferably uniformly, onto a substrate to be coated. Prior to dispensing, a set accelerator is preferably injected, which causes the foam to gel, which in turn improves the hangability of the product on a substrate. The spray material adheres to the substrate and hardens to form an insulative coating on the substrate.

Abstract: The embodiments of the invention are directed to a composite material comprising a fiber reinforcing material, a binder resin and polyurethane foam particles. Other embodiments are related to a process for manufacturing a composite material comprising a fiber reinforcing material, a binder resin and polyurethane foam particles, the method comprising depositing the binder resin and polyurethane foam particles the fiber reinforcing material to form a composite precursor and treating the composite precursor to form the composite material.

Abstract: A method of making a one-container foam by dissolving a polymer in liquified gas at a pressure greater than the vapor pressure of the liquified gas and than rapidly decreasing the pressure within approximately 60 seconds to foam a foam. The foam can be rigid and also have adhesive properties. The liquified gas used is CF3l or mixtures thereof.

Abstract: A more controllable fibrous acoustic ceiling patch or textured material in the form of a sprayable composition includes a base, a filler, an adhesive binder, an anti-foaming agent, a suspension agent, and fibrous materials. The more controllable acoustic ceiling patch is storable and dispensable from a pressurized dispenser having a delivery nozzle. An aerosol system with a spray nozzle is included on the container for selective discharge of the textured material onto a prepared patch area, which may be on a drywall or support panel so as to match and blend with the surrounding acoustic ceiling surface area in order to provide a continuous and unbroken coextensive surface texture of mechanically and visually matched material.

Abstract: Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious slurry is formed, the slurry is mixed with a gas such as air, and is subjected to mechanically created turbulence to generate gas bubbles and create a foam, which preferably is stabilized by a foam stabilizing agent such as polyvinyl alcohol present in the slurry. The foam is then conveyed to a nozzle or other suitable dispense point from which it is applied, for example sprayed, preferably uniformly, onto a substrate to be coated. Prior to dispensing, a set accelerator is preferably injected, which causes the foam to gel, which in turn improves the hangability of the product on a substrate. The spray material adheres to the substrate and hardens to form an insulative coating on the substrate.

Abstract: A method for forming microcellular foams that causes the material to expand uniaxially during the foaming process, and a method for forming objects from the foam. Liquid crystal polymers or polymers having a planar crystalline structure are saturated with a fluid, normally a gas such as carbon dioxide. The ambient conditions are changed such that the fluid is in a supersaturated state, and the material is brought to near its glass transition temperature to induce the formation of nonspherical elongated gas-filled cells. A process for making objects, such as transducer diaphragms, from microcellular foams includes the step of forming the objects prior to the foaming process.

Abstract: Provided is a foamable composition adapted to form a cross-linked novolac-epoxy resin foam. The foamable composition is formulated from a composition comprising at least one novolac resin, at least one epoxy resin, and at least one blowing agent.

Abstract: A tire sealer and inflating composition and products made therefrom are described. The tire sealer and inflating composition includes a sealant, a non-flammable propellant with an ozone depletion potential of zero or substantially close to zero, and one or more aromatic hydrocarbons capable of lowering the vapor pressure of the non-flammable propellant. Moreover, the tire sealer and inflating composition has a vapor pressure less than about 180 psig at 130° F. A preferred propellant is 1,1,1,2-tetrafluoroethane, although other fluorocarbons can also be used. A preferred aromatic hydrocarbon is AROMATIC 150, which is a mixture of aromatic compounds. The tire sealer and inflating composition can either be aqueous or non-aqueous. The disclosed tire sealer and inflating composition is capable of inflating a flat tire or other inflatable objects and seal a puncture wound.

Abstract: A method for reducing the amount of microfoam in a spray-applied waterborne polymeric composition is provided, wherein a gas, such as, for example, carbon dioxide, having a solubility factor greater than one is used in spraying the waterborne composition. Articles so coated are also provided. And, a method for increasing the density of a spray-dried waterborne polymeric composition is provided, wherein a gas, such as, for example, carbon dioxide, having a solubility factor greater than one is used in spray-drying the waterborne composition.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. These compositions comprise aqueous emulsions of film forming polymers in combination with microfibers. The preferred film forming polymers and the microfibers include functional groups capable of forming bonds, particularly hydrogen bonds, between these components. In another aspect of the invention, the compositions include a high temperature foam stabilizer, such as a high molecular weight fatty alcohols, having melting points greater than about 110° F.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise solid, waxy non-ionic lipophilic surfactants having low HLB values. These surfactants, upon foamed dispensing of the composition, provide stable support for bubbles formed from drying of a latex emulsion of a film forming polymer and a volatile liquid hydrocarbon propellant. In addition to use in caulking, sealant or insulation methods, the composition can be used to form artificial terrains and other hardenable structural surfaces as backgrounds or support means for hobbies, crafts, and the like.

Abstract: Aqueous agricultural foam marker compositions for delineating treated from untreated areas comprise a foamable composition of an anionic surfactant which is an &agr;-olefin sulfonate and/or an alkyl ether sulfate, a linear C12-16 alkanol, a foam stabilizing polymer, and one or more solvents. The foams produced from the foamable compositions have increased foam life, enhanced wind resistance, and are producable over a wide range of soft/hard water conditions.

Abstract: Aqueous agricultural foam marker compositions for delineating treated from untreated areas comprise foamable compositions of an anionic surfactant which is an &bgr;-olefin sulfonate, an alkyl or alkyl-ether sulfate, a long chain alkylbenzene sulfonate or a sulfosuccinate; a linear C14 or C16 alkanol or mixtures thereof; one or more solvents; and optionally a foam stabilizing polymer. The foam produced from the compositions have increased foam life, a pour point of 10° C. or lower, and are producable over a wide range of soft/hard water conditions.

Abstract: It provides a blowing agent which is significantly inhibited from solidification and is exceedingly useful as a blowing agent satisfactory in flowability, dispersibility into resins, and the like, even after the lapse of a prolonged period of time, and a process for producing the same. The blowing agent of the present invention is substantially anhydrous blowing agent, and it is obtained by treating a blowing agent with a surface-treating agent capable of removing water from the blowing agent, followed by optionally heating during or after the treatment.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise solid, waxy non-ionic lipophilic surfactants having low HLB values. These surfactants, upon foamed dispensing of the composition, provide stable support for bubbles formed from drying of a latex emulsion of a film forming polymer and a volatile liquid hydrocarbon propellant. In addition to use in caulking, sealant or insulation methods, the composition can be used to form artificial terrains and other hardenable structural surfaces as backgrounds or support means for hobbies, crafts, and the like.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise a waxy, solid foam stabilizer and a liquid lithophilic surfactant having low HLB value of about 3-14. The foam stabilizer provides stable support for bubbles formed from the drying of the latex emulsion of film forming polymer, and the volatile liquid hydrocarbon propellant. In addition to the use in caulking sealant or insulation methods, the compositions can be used to form artificial terrains or other hardenable structural surfaces as backgrounds or support means for hobbies, crafts and the like.

Abstract: Aqueous spray-resistant and pourable foams (S), produced by mechanical foaming of corresponding aqueous compositions (W), wherein the aqueous phase contains (A) a curable polymer system, which consists of (U) an ionomeric polyurethane or a mixture of ionomeric polyurethanes and optionally (P) one or more further polymers curable at least together with (U), and (B) at least one foam-stabilizer and the liter-weight of (S) at 20° C. and normal pressure is in the range of 400 to 700 g, are eminently suitable for foam-coating of corresponding substrates, in particular of leather.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. These compositions comprise aqueous emulsions of film forming polymers in combination with microfibers. The preferred film forming polymers and the microfibers include functional groups capable of forming bonds, particularly hydrogen bonds, between these components. In another aspect of the invention, the compositions include a high temperature foam stabilizer, such as a high molecular weight fatty alcohols, having melting points greater than about 110° F.

Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise solid, waxy non-ionic lipophilic surfactants having low HLB values. These surfactants, upon foamed dispensing of the composition, provide stable support for bubbles formed from drying of a latex emulsion of a film forming polymer and a volatile liquid hydrocarbon propellant. In addition to use in caulking, sealant or insulation methods, the composition can be used to form artificial terrains and other hardenable structural surfaces as backgrounds or support means for hobbies, crafts, and the like.

Abstract: Nasal, sinus and otic packings exhibiting a less adherent surface when in contact with tissue and being less traumatic on removal are prepared. In a first embodiment, polyvinyl acetal foamed packing material undergoes a surface modification imparting a non-adherent hydrogel coated surface. The surface modification is accomplished after final processing and fabrication of the packing product shape. The packing material is subjected to either an atomized spray of an aqueous solution of ethyl alcohol or a polyvinyl acetate/polyvinyl alcohol copolymer. In another embodiment, a foamed polyvinyl acetal material is produced by crosslinking polyvinyl alcohol with an organic compound containing two hydroxyl reactive groups in the presence of an inert gas. An aqueous solution containing polyvinylpyrrolidone is mixed into the reaction during crosslinking.

Abstract: A composition comprising a vinyl acetate acrylic copolymer or a carboxylated acrylic copolymer with or without additional latices, about 1 to 6 parts of a non-ionic surfactant, from 0 to 4 parts of a coalescing agent and from 0 to 5 parts of a co-surfactant, with about 15 to 100 parts of starch, and a propellant in the amount of from about 2% to 10% by weight of the entire composition. The composition is preferably contained under pressure in an aerosol can.

Abstract: An improved process for manufacture of expandable polymer particles is provided. The continuous process disclosed produces expandable polymer pellets in a single step while eliminating many of the dangers inherent in processes of prior art employed for the same. The polymers produced herein are of uniform size, and may be molded into various articles of manufacture using existing equipment and techniques known to those skilled in the art.

Abstract: A composition of a vinyl acetate acrylic copolymer or a carboxylated acrylic copolymer with or without additional latices, about 1 to 6 parts of a non-ionic surfactant, from 0 to 4 parts of a coalescing agent and from 0 to 5 parts of a co-surfactant, with about 15 to 100 parts of starch. A propellant is from about 2% to 10% by weight of the entire composition, and the composition is contained in an aerosol can. A method is also described.

Abstract: An improved process for manufacture of expandable polymer particles is provided. The continuous process disclosed produces expandable polymer pellets in a single step while eliminating many of the dangers inherent in processes of prior art employed for the same. The polymers produced herein are of uniform size, and may be molded into various articles of manufacture using existing equipment and techniques known to those skilled in the art.

Abstract: A sealer and inflator composition, particularly for inflating tires. The composition comprises: a sealant; a non-flammable propellant/inflator having an ozone depletion potential of zero; and a vapor pressure depressant which may be either hydrocarbon diethers of 3 to 6 carbon atoms, hydroxyketones of 3 to 6 carbon atoms, or mixtures thereof.

Abstract: The invention is a film having a discontinuous phase of open and closed cells and a continuous organic phase comprising:(a) one or more block copolymer(s) corresponding to the Formula I:A--B--X.sub.m --(B--A).sub.

Abstract: Plastisol compositions based on vinyl chloride/vinyl acetate copolymers produced by suspension polymerization have a low viscosity, even with low polymer-to-plasticizer ratios, so that they may be used for plastisol formulations suitable for airless spraying. The compositions are stable in storage and show good gelation properties. Coatings based on these plastisols have a good noise-damping effect, even with high vinyl acetate contents.

Abstract: The present invention is directed to a process for the preparation of a molded product. The method requires the introduction of a polyurethane foam forming reaction mixture into a mold. The present invention is directed to the use of a specific semi-rigid foam formulation which avoid problems associated with void formation in instrument panels.

Abstract: A sprayable, foam-forming, phenolic resin composition having the combination of properties of:(i) a viscosity suitable for spraying,(ii) a cure rate suitable for spraying to prevent running or sagging of sprayed foam,(iii) which when suitably cured provides a foam having a high temperature resistance, and(iv) the cured foam produces substantially non-toxic fumes when burned. The sprayable, foam-forming, phenolic resin composition is made from a phenol-aldehyde resin; optionally a phenol compound; a catalyst for catalyzing a curing reaction of said phenol-aldehyde resin; and a gas-generating compound which generates a gas during said curing reaction of said phenol-aldehyde resin. The invention also provides a method for making a phenolic-resin foam layer and a sprayed phenolic-resin foam layer.