Abstract: The disclosure pertains to foam of polymers, which can be made by a method for making a polymer foam comprising vacuum or gas-filled compartments by making a solution of 1 to 20% by weight of a polymer in a solvent; adding particles to the a polymer solution; solidifying the polymer wherein the particles are contained by heating, cooling, ageing, or coagulating to obtain a polymer foam or matrix comprising the particles, and obtaining from the polymer matrix the polymer foam containing the compartments; and optionally washing, drying, and/or heating the polymer foam.

Abstract: The invention relates to an active ingredient composition which has a high content in thermosensitive foaming agents and one or more polyolefin resins, the portion which is larger in quantity being a metallocene and optionally the remaining resins being polar or nonpolar nonmetallocene polyolefin resins. All polyolefin resins add up to at least 10% by weight of the formulation and have a melting point between 80 and 170° C. The reduced dust active ingredient composition according to the invention is used for the masterbatch production of foamed plastics.

Abstract: The present invention describes a process of preparing microcapsules in a UV curable water immiscible phase. The microcapsules formed according to the invention contain an aqueous phase core. The process comprises dispersing a water soluble or dispersible core material along with at least one wall forming prepolymer and a polycondensation polymerization catalyst into an aqueous solution. The aqueous phase is then dispersed into the water immiscible phase comprising UV curable monomers or oligomers forming droplets of the aqueous phase solution in the water immiscible phase. Polycondensation of the prepolymers is initiated to form polymeric wall material or microcapsules at or near the interface of the water immiscible solvent and droplets of aqueous phase solution. Following capsule formation, a UV initiator is dispersed in the water immiscible phase. The UV curable dispersion containing aqueous microcapsules can be coated on a substrate.

Abstract: A thermally foamable microsphere having a structure that a foaming agent is encapsulated in an outer shell formed from a polymer, wherein supposing an electric conductivity of a water extract obtained by Step 1 of dispersing 5 g of the thermally foamable microsphere in 20 g of ion-exchanged water having a pH of 7 and an electric conductivity of ?1 at a temperature of 25° C. to prepare a liquid dispersion; and Step 2 of shaking the liquid dispersion at the same temperature for 30 minutes to conduct a water extraction treatment, as measured at 25° C. is ?2, a difference ?2??1 between ?2 and ?1 is at most 1 mS/cm, and a production process including measuring an electric conductivity of a filtrate in the washing step to obtain a thermally foamable microsphere exhibiting a desired electric conductivity on the basis of a previously prepared relational expression between the electric conductivity of the filtrate and the electric conductivity of a water extract of the thermally foamable microsphere.

Abstract: Methods that apply decorative particles in-line in the manufacturing process to form a decorative structured mat or veil that is ready for direct commercial application. The decorative particles or decorative paint patterns should be of a size and/or color to be visible at a distance of five meters from the decorative mat or veil. In preferred embodiments, the particle size ranges from about 100 to about 500 microns in size. A formulation for coating a glass fiber mat with decorative particles is also provided.

Abstract: Tissue engineering is a growing field where new materials are being developed for implantation into the body. One important area involves bone graft materials to replace areas of bone lost to trauma or disease. Traditionally, graft material may be harvested from the bone of the individual receiving the graft material. However, this requires an additional surgery and additional recovery. Bone also may be taken from others, or even cadavers, but this introduces biocompatibility problems as well as the risk of disease transfer. Ideally, a biocompatible material is sought that will act as a filler with appropriate mechanical strength, encourage bone healing, and degrade to allow new bone ingrowth without the risk of disease transfer. The present invention is a new composite bone graft material made from biocompatible poly(D,L-lactic-co-glycolic acid) (PLGA) and nano-sized hydroxyapatite particles exposed on its surface using a gas foaming particle leaching (GF/PL) method.

Abstract: The present invention relates to methods, materials, and products for forming a foamed product, comprising the steps of combining an epoxy-based component with an amine-based component. The epoxy component is cross-linked through a polymerization reaction catalyzed by the amine formulation. In this regard, an reactive mixture or exothermic reaction is created between the epoxy component and the amine component when combined. The heat generated by the exothermic reaction softens a thermoplastic shell of a blowing agent formulated within the epoxy component thereby enabling a solvent core within the thermoplastic shell of the blowing agent to expand from the heat generated by the exothermic or reactive mixture.

Abstract: A one-part spray foam formed by Michael addition chemistry is provided. The foamable composition includes at least one electron donor, at least one electron acceptor, an encapsulated catalyst, and one or more blowing agents. The catalyst is a weak or strong base. The encapsulation of the catalyst controls the polymerization of the Michael addition compounds such that the catalyst can be added and/or activated at a desired time to begin the foaming reaction. The catalyst may be encapsulated in a high molecular weight inert polymer or wax. In some embodiments, the chemical blowing agent(s) are also encapsulated. To produce a foam according to the invention, a single stream of the foamable composition is fed into an application gun where the slurry is heated and mixed. The heat and/or mixing in the gun releases the catalyst, which initiates the reaction between the Michael donor and Michael acceptor to form the foam.

Abstract: Provided is a novel foam composition for preparing polyisocyanurate foam. The composition comprises an isocyanate reactive compound, poyisocyanate, blowing agent and talc filler component. The talc filler is loaded from 0.5 to 20 wt % based on the isocyanate reaction compound, preferably a polyol, and the average particle size of the filler is in the range of from 7? to 20?. The foam material prepared contains a high loading of filler, yet still exhibits excellent foam properties.

Abstract: Provided is a method of producing porous silica-based particles with the relatively larger average diameter of 1 micron or more and also having a low particle density. The method comprises the steps of (a) preparing two-layer separated liquid consisting of an organic silicon compound layer and a water layer, then adding an organic solvent, an alkali, and a surfactant into the water layer while agitating at least the water layer so that the organic silicon compound layer and the water layer are not completely mixed with each other, further hydrolyzing and/or partial hydrolyzing the organic silicon compound in the mixed aqueous solution to prepare silica-based particle precursors, (b) adding sodium aluminate into the mixed aqueous solution containing the silica-based particle precursors and then preparing silica-based particles having pores, cavities or voids inside the particles, and (c) washing and drying the silica-based particles.

Abstract: Provided is a modified blowing agent, wherein the surface of a blowing agent powder is coated with a metallic siloxylated compound. When the modified blowing agent is included in a polymer resin, dispersibility of the modified blowing agent is excellent in the polymer resin and fluidity of the polymer resin is improved in an extrusion molding machine and an injection molding machine, and thus productivity and processability can be improved. In addition, the foam that is formed using the polymer resin composition including the modified blowing agent has excellent tear strength, durability, and masking sound properties due to fine and uniform size of foam cells and increased number of foam cells per unit surface area.

Abstract: The present invention provides thermo-expansive microspheres comprising thermoplastic resinous shell and a blowing agent being encapsulated in the shell, the blowing agent which is a fluorine-containing C2-10 compound having ether linkage, being free of chlorine and bromine atoms and gasifying at a temperature not higher than the softening point of the thermoplastic resin; and also provides the production and application processes thereof. The thermo-expansive microspheres have preferably an average particle size ranging from 1 to 100 ?m and a CV, or coefficient of variation, of particle size distribution being 30% or less, and a retaining ratio of blowing agent encapsulated being 90% or more. The thermo-expansive microspheres have low environmental loading and superior flame-retardant or flame-resistant performance, and have particle sizes distributing in narrow ranges.

Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.

Abstract: Multi-functional microcapsules comprising a core material including a major portion of one or more functional additives and a shell material including at least one functional additive, a method of manufacturing such multifunctional microcapsules and polymeric products incorporating such multifunctional microcapsules are provided.

Abstract: A porous, low-k dielectric film that has good mechanical properties as well as a method of fabricating the film and the use of the film as a dielectric layer between metal wiring features are provided. The porous, low-k dielectric film includes a first phase of monodispersed pores having a diameter of from about 1 to about 10 nm that are substantially uniformly spaced apart and are essentially located on sites of a three-dimensional periodic lattice; and a second phase which is solid surrounding the first phase. Specifically, the second phase of the film includes (i) an ordered element that is composed of nanoparticles having a diameter of from about 1 to about 10 nm that are substantially uniformly spaced apart and are essentially arranged on sites of a three-dimensional periodic lattice, and (ii) a disordered element comprised of a dielectric material having a dielectric constant of about 2.8 or less.

Abstract: The present invention relates to a new class of blowing inhibitors and a method for discovering such inhibitors with determinable inhibition activities. The new class of blowing inhibitors are organo-silanes that may be directly adsorbed onto active catalytic sites of blowing catalysts and that can inhibit the thermo-catalytic efficiency of such catalysts.

Abstract: The present invention discloses a composition of matter for use in wallboard in the construction that has a morphology of pores and a network of interconnected inorganic particles that are coated with a thin layer of organic binder. The process used to produce the wallboard can use either hydrophobic or hydrophilic prepolymers or preferably both to create the desired network of coated inorganic particles. A preferred embodiment uses at least one hydrophobic constituent and a decomposition reaction that produces a gas to form one or more layers or a gradient of the morphology in one or more layers to create wallboard products with superior properties to those wallboard products now known.

Abstract: The invention and formulation relates to methods, materials, and products for foam-in-place materials comprising a two-component foam-in-place structural material for producing a foamed product. A first component of the system includes an epoxy-based resin preferably formulated with a coated particles, such as a metal salt, a metal carbonate encapsulated within a wax, or a polymer, (e.g., Thermoset, thermoplastic, or mixture). The metal carbonate particle may be encapsulated within a wax, shell or skin that will change state to expose the core to chemically react for initiating the production of gas for blowing. The second component is an acid that is capable of initiating polymerization of the resin.

Abstract: An adhesive system that allows for a strong adhesion of a member to a surface, while also allowing for easy removal of the member after a prolonged period of attachment. The member may include a structural component or a film or appliqué that is applied for other purposes. The member is affixed to a substrate with an adhesive having a releasing agent or constituent. The releasing agent allows a substantially complete removal of the member and adhesive from the substrate. Also, the adhesive may be easily removed at a desired time in the future due to the application of a particular catalyst. Thus the releasing agent permits a substantially complete removal of both the member and the adhesive which bonds the member or component to the surface.

Abstract: Multi-functional microcapsules comprising a core material including a major portion of one or more functional additives and a shell material including at least one functional additive, a method of manufacturing such multifunctional microcapsules and polymeric products incorporating such multifunctional microcapsules are provided.

Abstract: Provided is a porous para-oriented aromatic polyamide film which contains fine particles composed of a heat-resistant resin in an amount of 10 to 400 parts by weight based on 100 parts by weight of a pare-oriented aromatic polyamide and has a linear thermal expansion coefficient at 200 to 300° C. of from −50×10−6/° C. to +50×10−6/° C. The porous para-oriented aromatic polyamide film shows excellent tear propagation resistance and has light weight and low linear thermal expansion coefficient, and is suitable as a prepreg material used for a base substrate for printed circuit board.

Abstract: A method of forming a cellular material or “core” by immersing the core in water until it is sufficiently flexible to be molded around a tool into the required shape and then drying the formed core such that the core then retains that shape.

Abstract: A nanoporous polymer comprises hollow structures fabricated from crosslinked polymeric strands. The hollow structures are further coupled to other crosslinked polymeric strands by a covalent bond. Particularly contemplated nanoporous polymers have a Tg of no less than 400° C. and a dielectric constant k of no more than 2.5.

Abstract: Waxes, particularly paraffin and microcrystalline waxes, can act as corrosion inhibitors when added at low levels to compositions based on thermosettable resins such as epoxy resins. When such wax-modified thermosettable compositions are used to coat a metallic surface, enhanced protection of the metallic surface against corrosion due to environmental exposure such as salt spray is obtained. The thermosettable compositions are particularly useful in expandable or foamable form for imparting structural reinforcement to hollow metal parts such as automotive components.

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: A water-based chipping-resistant paint which comprises 30 to 65 weight percent of solid matter and 0.1 to 10 weight percent of low-temperature volatility solvent as a water-based dispersion substance and wherein the solid matter contains 15 to 75 weight percent of film-formable resin, 0.2 to 25 weight percent of thermoexpandable microspheres, and 20 to 80 weight percent of chipping-resistant material, facilitates vaporization of water at the time of film formation owing to mixing of the low-temperature volatility solvent, can prevent cracking and blistering of a film due to water remaining in the film and vaporization of water remaining after the film formation, and readily form a thick film owing to an expansion effect of the thermoexpandable microspheres at the stage of baking after coating, and therefore is suitable for a chipping resistant underbody coating for automobiles.

Abstract: Foams comprising blends of thermoplastic and thermoset materials wherein the thermoset forms a discontinuous phase in a continuous thermoplastic phase are described. Foams comprising an uncured thermoset and unreacted radiation-activatable curing agent in a thermoplastic matrix are also described. Additionally described are batch and continuous methods for making the foams. Particular uses for the foams, such as flexographic mounting tapes, are also described.

Abstract: A silicone rubber sponge composition, a silicone rubber sponge, and a process for making a silicone rubber sponge. The silicone rubber sponge composition comprises (A) 100 parts by weight of an organopolysiloxane gum described by average structural unit RaSiO(4−a)/2, where R is a monovalent hydrocarbon radical or haloalkyl and a is 1.95 to 2.05, (B) 1 to 400 parts by weight of an inorganic filler, (C) 0.01 to 50 parts by weight hollow thermoplastic resin particles (D) a mixture of (a) water-soluble silicone and (b) water in an amount such that the water in the mixture is equivalent to 0.01 to 10 parts by weight per 100 parts by weight of component (A), and (E) a curing agent in an amount sufficient to cure the composition.

Abstract: A silicone rubber sponge composition, a silicone rubber sponge, and a process for production thereof. The silicone rubber sponge composition comprises (A) 100 parts by weight organopolysiloxane gum described by average structural unit RaSiO(4−a)/2, where R is a monovalent hydrocarbon group or haloalkyl and a is 1.8 to 2.3 and having a viscosity at 25° C. of 1,000,000 mPa·s or above, (B) 1 to 400 parts by weight inorganic filler, (C) 0.01 to 50 parts by weight hollow thermoplastic resin particles, (D) 0.01 to 10 parts by weight a water-in-oil emulsion with silicone oil an oil phase, and (E) a curing agent in an amount sufficient to cure the composition.

Abstract: A material for the production by extrusion or molding or calendering of light articles has a chemical formulation comprising at least a thermoplastic polymer. A predetermined amount of polymeric microspheres containing isopentane is added to said at least a thermoplastic polymer. A process for producing said material comprises a first step during which the thermoplastic polymer is mixed to further components (such as thermal stabilizers and/or costabilizers and/or additives) and a second step during which the mixture is granulated in order to obtain a granular compound. At the end of the first step, and advantageously immediately before the beginning of said second step, a predetermined amount of polymeric microspheres containing isopentane is added to the mixture. Said material is used for the production by injection molding or extrusion or calendering of light articles in the shoe industry, particularly of shoe soles.

Abstract: A polyurethane composition for fabricating antimicrobial based products such as polyurethane foam carpet backing materials and carpets having a polyurethane foam carpet backing material. The polyurethane composition includes a plurality of particles comprising an antimicrobial agent which are at least partially encapsulated by a plasticizer material before being dispersed within a polyurethane.

Abstract: Controlled and thorough stabilization of pitch is provided by incorporating an oxidant into the pitch. In one embodiment of the invention, the oxidant is intimately mixed with the pitch. In another embodiment, the oxidant is encapsulated in a suitable encapsulant and the encapsulated oxidant is intimately mixed with the pitch. This material is particularly useful in the preparation of a carbon-carbon composite, but is also useful for preparing fibers and solid preforms.

Abstract: Expanded cellular structures are formed from dense nonporous cellulose paper with an air permeance of less than 30 ml/min which cellular structure is provided with a shape retention of at least 90%. The shape stability is obtained by forming the cellular structure, spraying with an aqueous liquid and heating, the amount of liquid, time and temperature of heating being selected and sufficient to provide the desired shape retention. The minimum amount of water is at least 30 weight % of dry paper more usually at least 75% with minimum heating of 1 minute at 100° C.

Abstract: Provided is a method of preparing a light-weight and inexpensive void type plastic pigment having enhanced hiding power and whiteness relative to inorganic pigments such as titanium oxide or organic pigments such as conventional styrene polymeric plastic pigments by regulating the content of each monomer in the sheath polymerization after core polymerization and controlling the glass transition temperature of the first sheath which is the shell obtained by initial polymerization less than that of the core by 70 to 120.degree. C., thus increasing the difference of refractive index between the polymeric matrices.

Abstract: A microporous, hydrophilic polymer film has a morphology composed of distinctively interconnected pores, which are desirably surface-open. In particular aspects, the film can provide for a water vapor transmission rate (WVTR) value of at least about 1000 grams per square meter per 24 hours per mil (0.00254 cm) of film thickness. The film can exhibit a modulus of not less than about 1 MPa, and may also exhibit an elongation strain at break of at least about 100% in both its machine and transverse directions. The film can also provide for a water contact angle of not more than about 80 degrees. In other aspects, the porous film can also include other properties or characteristics, such as a desired tensile strength at break, a desired elongation-at-break, and voids or pores having distinctive shapes, sizes, distributions and configurations.

Abstract: A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.

Abstract: The present invention pertains generally to immobilizing particulate matter contained in a "packed" bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that a) the particulate retains its essential chemical nature, b) the local movement of the particulate particles is not unduly restricted, c) bulk powder migration and is prevented, d) physical and chemical access to the particulate is unchanged over time, and e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of individual particle to a limited local position.

Abstract: The invention is directed at a composite material comprising a product of a combination of materials. The combination of materials comprises an inorganic filler comprised of ceramic cenospheres, a thermoplastic polymer and a coupling agent comprised of at least one fatty acid having at least 16 carbon atoms and at least one rosin acid having at least 16 carbon atoms. The combination may further comprise an organic filler comprised of cellulosic material and wherein the thermoplastic polymer has a melt temperature of less than the char temperature of the organic filler. The invention is further directed at a process for producing the composite material comprising the step of combining the components at a temperature of greater than or equal to the melt temperature of the thermoplastic polymer. Where the components include the organic filler, the process temperature is less than the char temperature of the organic filler.

Abstract: A molded closure for a liquid container comprising a thermoplastic elastomer and a blowing agent. The molded closure is particularly suitable for use as a synthetic wine cork in a wine bottle. The molded closure does not permit passage of oxygen into the container, does not absorb oxygen from the contents of the container, can be removed from the container using a corkscrew without significant expansion, crumbling or disintegration, does not significantly taint a liquid in the container, permits the container to be placed horizontally immediately after insertion of the molded closure, and can permanently retain printed matter on its surface.

Abstract: The present invention relates to a composition for use as a blowing agent in injection molding processes. More specifically, the present invention is a blowing agent composition comprising a molecular sieve and a foaming agent, wherein the foaming agent is carried by the molecular sieve and evolves to form foamed plastic products. In addition, the present invention is a foamed plastic resin containing a molecular sieve. Additionally, the present invention provides a composition and method for foaming moisture-sensitive polymers comprising the addition of molecular sieves and a poly-hydroxy ester. The present invention is also an encapsulated blowing agent on a polymer substrate.

Abstract: Infrared absorbing compositions useful as high solid coatings comprising 5-50% of a volatile solvent portion and 50-95% of a non-volatile portion which comprises a film-forming binder having dispersed within the binder opacifying polymeric beads and an infrared radiation absorbing pigment selected from the group consisting of copper phosphate, basic copper phosphate, copper pyrophosphate, tungsten trioxide and mixtures thereof.

Abstract: Apparatus and method for the production of hopper feedable thermoplastic pellets having zones or compartments which contain physically separated reactants which react only after being melt-mixed, as in a screw type extruder, reciproscrew injection machine, or similar device which heat forms pellets into a larger mass. This new class of thermoplastic molding materials relies mainly on the relatively slow reaction kinetics of contained large molecule molding materials to provide a time interval after melt-mixing of zoned pelletized reactants in an extruder barrel or injection molding machine. During this time period, the thermoplastic molding material is easily filled into injection molds. As the reaction progresses, the material becomes more viscous and such flow is difficult or impossible. The involved reactions may continue after demolding at room temperature during a post molding cure, or appliance service generated heat may cause post molding cure.

Abstract: The present invention provides a method of reinforcing thin rigid plates. The method comprises applying, preferably by spray application, a curable composition onto one side of the rigid plate followed by curing the composition while only in contact with the rigid plate. The curable composition comprises: (i) a thermosetting resinous composition and (ii) expandable microspheres. The composition may optionally contain a particulate reinforcing material selected from the group consisting of milled glass fibers, milled carbon fibers, and mixtures thereof.

Abstract: The present invention relates to a composition for use as a blowing agent in injection molding processes. More specifically, the present invention is a blowing agent composition comprising a molecular sieve and a foaming agent, wherein the foaming agent is carded by the molecular sieve and evolves to form foamed plastic products. In addition, the present invention is a method for preparing a blowing agent composition and a foamable blowing agent-resin mixture. Furthermore, the present invention is a foamed plastic resin containing a molecular sieve. Additionally, the present invention provides a composition and method for foaming moisture-sensitive polymers comprising the addition of molecular sieves and a poly-hydroxy ester. The present invention also advances a method of encapsulating a blowing agent on a polymer substrate and a corresponding encapsulated blowing agent composition.

Abstract: A coating powder consisting essentially of generally spherical particles ranging in size from less than 2 to about 40 microns, 75% of whose volume consists of particles of from about 2 to about 20 microns in size, is provided by dissolving the components of the coating powder in a supercritical fluid without the aid of a surfactant and spraying the solution into a zone whose pressure is less than that of the fluid. A very smooth continuous film of a cured thermosettable coating powder is achieved even when the film thickness is less than 1 mil, e.g., from about 0.2 and greater. The advantages of powder coatings may now be realized fully in the automobile and can industries.

Abstract: A receptacle (10), such as an attache case or brief case, has a cover panel (22), back panel (24), front panel (26), top panel (30), bottom panel (32) opposing tabs (34) and opposing side panels (36). The case is made from a unitary sheet of expanded polyethylene. The expanded polyethylene sheet material is produced by encapsulating a thermoplastic blowing agent (azodicarbonamide) within an ethylene vinyl acetate carrier resin to form a pelletized compound which is combined with high-density polyethylene resin and extruded. The melt temperature of the pelletized blowing agent is lower than that of the polyethylene resin, and controls the expansion of the polyethylene resin.

Abstract: A novel processing technique is reported to bond non-woven fibers and, thus, prepare structural interconnecting fiber networks with different shapes for organ implants. The fibers are physically joined without any surface or bulk modification and have their initial diameter.

Abstract: A molded closure for a liquid container comprising a thermoplastic elastomer and a blowing agent. The molded closure is particularly suitable for use as a synthetic wine cork in a wine bottle. The molded closure does not permit passage of oxygen into the container, does not absorb oxygen from the contents of the container, can be removed from the container using a corkscrew without significant expansion, crumbling or disintegration, does not significantly taint a liquid in the container, permits the container to be placed horizontally immediately after insertion of the molded closure, and can permanently retain printed matter on its surface.

Abstract: Polyurethane/urea elastomers having an isocyanate equivalent index below 100, preferably from about 15 to about 80; containing an effective amount of polyisocyanate component, and an effective amount of an isocyanate reactive component comprising at least one polyamine and at least one polyol, wherein said elastomer contains from about 1 to about 199 equivalent percent amine per isocyanate equivalent.

Abstract: The invention pertains to a low weight, low density rigid polyurethane-polyurea reinforced reaction injection molded (RRIM) part having flaked glass reinforcing fibers dispersed throughout a matrix made by reacting polyisocyanates with a resin containing hydroxy group tertiary amine polyether polyols, a blowing agent, and optionally surfactants, chain extenders, and urethane promoting catalysts. The low density RRIM part using flaked glass and the tertiary amine polyether polyols is a low cost alternative to glass fiber reinforced low density parts and the part exhibits a relatively low coefficient of linear thermal expansion and relatively/high temperature deflection properties as compared to other known fillers.