Abstract: This invention relates to a method of producing silicone elastomeric foam of low density. The method mixes polydiorganosiloxanes having hydroxyl endblocking or vinyl endblocking or mixtures of both along with water to react with silicon hydride in the presence of platinum catalyst to release hydrogen gas to create a froth which cures to a foam. The combination of ingredients allows the manufacture of silicone foam having different combinations of properties than those obtained from previous methods. Embodiments of the invention also make use of specific profoamers and specific alcohols to further modify the properties of the foams produced. The method of this invention yields a low cost, low density, silicone elastomeric foam having physical properties which enable it to be used in cushioning and sealing applications.

Abstract: A method of producing elastomeric silicone foams from a two-part system is disclosed. The method mixes the ingredients then allows a froth to form and cure at ambient temperature to an elastomeric silicone foam. The method mixes a vinyl-containing polydiorganosiloxane (1), a hydroxylated polydiorganosiloxane (2), a platinum catalyst (3), an organohydrogensiloxane (4) and a profoamer (5). The profoamer is a resinous, benzene-soluble organosiloxane copolymer consisting essentially of SiO.sub.4/2 units, silicone bonded hydroxyl groups, (CH.sub.3).sub.3 SiO.sub.1/2 units, and fluorine-containing units. An embodiment of the method includes a liquified blowing agent and stores the mixture under superatmospheric pressure, forming a foam by releasing the mixture to atmospheric pressure. Another embodiment includes an alcohol in the mixture to provide a foam of lower density.

Abstract: This invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers and/or high molecular weight polyols, a chain extender, a polyisocyanate, an epoxy silane coupling agent, and untreated filler material. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.

Abstract: This invention relates to a method of producing silicone elastomeric foam of low density. The method mixes polydiorganosiloxanes having hydroxyl endblocking or vinyl endblocking or mixtures of both along with water to react with silicon hydride in the presence of platinum catalyst to release hydrogen gas to create a froth which cures to a foam. The combination of ingredients allows the manufacture of silicone foam having different combinations of properties than those obtained from previous methods. Embodiments of the invention also make use of specific profoamers and specific alcohols to further modify the properties of the foams produced. The method of this invention yields a low cost, low density, silicone elastomeric foam having physical properties which enable it to be used in cushioning and sealing applications.

Abstract: A dry-type textile cleaning article is disclosed which comprises a friable hydrophilic polyurethane foam body which incorporates abrasive particles, solvents, surfactants, and adjuvants such as fragrance, biocides, and fiber emollients. When rubbed over a textile surface the foam body yields shreds which are effective to remove both liquid and dry soils from textiles.

Abstract: A method of producing elastomeric silicone foams from a two-part system is disclosed. The method mixes the ingredients then allows a froth to form and cure at ambient temperature to an elastomeric silicone foam. The method mixes a vinyl-containing polydiorganosiloxane (1), a hydroxylated polydiorganosiloxane (2), a platinum catalyst (3), an organohydrogensiloxane (4) and a profoamer (5). The profoamer is a resinous, benzene-soluble organosiloxane copolymer consisting essentially of SiO.sub.4/2 units, silicone bonded hydroxyl groups, (CH.sub.3).sub.3 SiO.sub.1/2 units, and fluorine-containing units. An embodiment of the method includes a liquified blowing agent and stores the mixture under superatmospheric pressure, forming a foam by releasing the mixture to atmospheric pressure. Another embodiment includes an alcohol in the mixture to provide a foam of lower density.

Abstract: This invention discloses a method of controlling the relative physical properties of foams such as density and compressibility or density and Bashore resiliency for compositions which consist essentially of triorganosiloxy endblocked polydiorganosiloxane having at least two vinyl radicals, platinum catalyst, organohydrogensiloxane, and hydroxyl endblocked polydiorganoisiloxane. The relative values of the physical properties are adjusted by the addition of varying amounts of organic alcohol having from 3 to 12 carbon atoms to the composition.

Abstract: The invention relates to a plastics cellular material comprising the reaction product of an unsaturated polyester resin containing a polymerizable unsaturated monomer and an epoxy-based vinyl ester in the presence of surfactants.

Abstract: This invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers and/or high molecular weight polyols, a chain extender, a polyisocyanate, a chloro and/or isocyanate silane coupling agent, and untreated filler material. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.

Abstract: A method for producing polyester modified, polyurethane foam having a density of from about 1 to 40 pounds per cubic foot, and the product produced by said method, are disclosed and claimed. A first composition or mixture is prepared comprising a relatively high molecular weight polyol, and a minor but effective amount of a hydroxy-containing, unsaturated polyester, soluble in or miscible with the polyol; a second composition or mixture is prepared comprising an isocyanate or polyisocyanate soluble in or miscible with a vinylidene type cross-linking monomer for the unsaturated polyester, the cross-linking monomer being exemplified by styrene, said first and second mixtures being blended together just prior to production of the foam, thereby enabling the production of a more homogeneous foamed product having improved physical properties, especially those enhancing the product's usefulness for insulation purposes.

Abstract: A composite cleaning pad is provided which incorporates a sheet of open-celled reticulated, hydrophillic polyurethane foam which integrally incorporates silane-coupled abrasives and a gelled aqueous phase and a textile sheet which covers a surface of the foam sheet and is bonded thereto.

Abstract: An absorbent floor cleaning and waxing composition is disclosed comprising shreds of a hydrophilic, open-celled, solids-loaded polyurethane foam having an aqueous wax emulsion releasably incorporated therein. The composition is effective to replace soiled coatings of floor wax with fresh floor wax.

Abstract: Copolyester polyol resins comprising the reaction product of an aromatic component selected from phthalic derivatives, polyethylene terephthalate, or dimethyl terephthalate, an aliphatic component selected from certain dibasic compounds, at least one primary hydroxyl glycol, and at least small amounts of a secondary hydroxyl glycol, the mole ratios of the components being:(a) glycols to aromatic plus aliphatic component of from about 1.3 to 2:1;(b) aromatic component to aliphatic component of from about 0.6 to 4.0:1;(c) a secondary to primary hydroxyl glycol of from 0.05 to 0.4:1; and(d) ethylene glycol content to aromatic component of from about 0.01 to 0.5:1.0.The invention also comprises polyol blends utilizing from 30 percent up to 90 percent of such resins and resultant polyurethane modified polyisocyanurate foams made by reacting such polyol blends with polymeric polymethylene polyphenylisocyanate.

Abstract: The present invention relates to one component polyurethane foam compositions which comprise mixtures of prepolymers of a polyol and an excess of isocyanate; the usual adjuvants for polyurethane foams, an expanding gas under pressure and a polysiloxane compound with antifoam activity stored in a valved pressure vessel.

Abstract: A process for preparing a predominately closed cell foam having an improved load bearing resiliency together with the improved polyurethane foam product, the process comprising co-reacting a fluid high-solids polymer/polyol and an organic polyisocyanate in the presence of an organo-tin catalyst, a tertiary amine catalyst, a blowing agent, a silicone-oxyalkylene surfactant and a critical amount of a filled diorganosilicone oil anti-foaming agent.

Abstract: An absorbent floor cleaning composition is disclosed comprising shreds of a hydrophilic, open-celled, solids-loaded polyurethane foam having an aqueous phase releasably absorbed therein. The composition is particularly effective to clean flooring fouled with oily or greasy soils.

Abstract: An absorbent floor cleaning composition is disclosed comprising shreds of a hydrophilic, open-celled, solids-loaded polyurethane foam having an aqueous phase releasably absorbed therein. The composition is particularly effective to clean flooring fouled with oily or greasy soils.

Abstract: Polyurethane, polyurea and polyureaurethane resins having improved mold release properties are made by including with the reactive ingredients certain internal mold release agents which are polysiloxane polymers having pendant organic groups which contain at least one hydroxyl, amino or mercapto group.

Abstract: The present invention is directed to a process for the production of a flexible polyurethane foam comprising reacting(a) an organic polyisocyanate, and(b) a coupled polyol which consists essentially of the reaction product of an organic polyisocyanate and an organic compound having a hydroxy functionality of at least 2 and a primary hydroxy group content of at least 30%, the ratio of hydroxyl groups in said organic compound to isocyanate groups being greater than 1,(c) in the presence of(i) a blowing agent,(ii) a catalyst, and(iii) a foam stabilizer, said foam stabilizer being capable of producing a flexible polyurethane foam meeting the standard specifications for high resilience polyurethane foam as set forth in ASTM D-3770-79, when used in a foam formulation based on toluene diisocyanate and either (A) a polymer polyol prepared by polymerizing one or more ethylenically unsaturated monomers in a polyether polyol, or (B) a dispersion of polyurea and/or polyhydrazodicarbonamide in a hydroxyl group containing

Abstract: Generally closed cell phenolic foams are prepared which have a K-factor of less than 0.2, preferably from about 0.116 to about 0.170 Btu/hr - .degree.F. - ft - .sup.2 per inch of foam thickness when measured at 24.degree. Centigrade. The foams are prepared from a resole resin which has been stripped to a water level of less than 7 percent by weight, preferably from about 3 to about 6 percent by weight based on resin weight. A viscosity adjusting amount of a solvent, such as phenol, and from about 10 to about 20 weight percent, based on resin weight, of a polyglycol are also part of a foam forming formulation. Conventional surfactants, blowing agents and acidic catalysts are used to prepare the foams. The foams so prepared generally have no tendency to autoxidize when placed in an oven heated to a temperature of 250.degree. Centigrade. The foams so prepared also have enhanced resistance to flame penetration.

Abstract: A polyurethane foam can be made from waste cellulosic products such as papermill sludge, wood chips, wood particles, sawdust, waste paper or cardboard scraps. The polyurethane foam is made by reacting together a polyisocyanate, a catalyst, and a cellulosic material.

Abstract: What is disclosed is a method of producing molded polyurethane articles by a reaction injection molding process which includes mixing one or more polyols, polyisocyanates and catalysts with an organopolysiloxane containing at least one --COOA group, wherein A is an alkali metal, and molding the curing the mixture.

Abstract: The invention provides a novel silicone-containing curable composition capable of foaming by virtue of the blowing agent contained therein together with a curable liquid silicone composition. The composition is suitable for the water-repellent and waterproof treatment of fabric materials without decreasing the air and moisture permeability of the treated fabric material.

Abstract: This invention relates to a plastics cellular material and to a process for production of a plastics cellular material. The plastics cellular material has a resin binder and is characterized by the inclusion of products of the reaction of polyester resins and epoxy-based vinyl esters in the presence of surfactants. The process includes taking a first mixture of an unsaturated fast curing polyester resin, epoxy-based vinyl esters, copolymerizeable monomers, a finely dispersed gas releasing salt, hardening accelerators, finely dispersed surfactants, and fillers. The process also includes taking a second mixture is mixed that includes an acidic solution, for reaction with the gas releasing salt as a blowing agent, and organic catalysts. The two mixtures are combined to form a third mixture that will foam in a controllable manner and cure to produce a foam material.

Abstract: Disclosed is an improved polyurethane foam having cleaning and germicidal activities. The foam is prepared by mixing together a select prepolymer reactant and water, and adding to the mixture prior to foam formation a nonionic surfactant, a quaternary ammonium compound and a silicon-based surfactant. The resulting foam is particularly useful as a disposable wiping pad for household clean-up applications.

Abstract: The invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers and/or high molecular weight polyols, a chain extender, a polyisocyanate and an epoxy modified filler material. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.

Abstract: Flexible foam composition comprising a flexible polyester resin prepared from a resin having an elongation of 8 to 70 percent, said foams having density of 2 to 50 pounds per cubic foot. The foam can be filled with up to 150 parts by weight of inorganic materials and can be reinforced with porous fabric (paper or cloth) or glass (chopped fiber or woven tape) materials.

Abstract: A foam-forming organopolysiloxane composition comprising:(A) 100 parts by weight of .alpha.,.omega.dihydroxydiorganopolysiloxane;(B) 0.05-50 parts by weight of a low molecular weight .alpha.,.omega.dihydroxydiorganopolysiloxane;(C) 0.5 to 30 moles Si-H per mole SiOH of (A) and (B) as an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; and(D) 0.1 to 200 ppm of a platinum-containing compound.

Abstract: A process of reaction injection molding of polyurethanes is disclosed which includes the mixing of one or more of each of polyols, isocyanates, and catalysts, the reaction of the foregoing ingredients, and the molding and curing of the foregoing mixture into the desired configuration, the improvement comprising mixing with the other ingredients a silicone selected from the group consisting ofZ.sub.4-a SiG.sub.a and R.sub.3-d G.sub.d SiO(Y.sub.2-b G.sub.b SiO).sub.n SiG.sub.c X.sub.3-cwherein Z, R, Y, and X are selected from the group consisting of hydrogen, substituted and unsubstituted hydrocarbon radicals, and mixtures thereof; G is a radical of the structure --D(OR").sub.m OH wherein D and R" are selected from the group consisting of substituted and unsubstituted hydrocarbon radicals, and m has a value of 1 to 50; a has a value of 1 to 4; d and c have values of 0 to 3, and b has a value of 0 to 2 wherein d, c, or b has a value of at least 1; and n has a value of 0 to 350.

Abstract: Processes for sealing and strengthening water-bearing geological formations by injection thereinto a polyurethane-resin-forming composition that is especially suitable for this purpose which comprises a conventional polyisocyanate, a conventional polyol, an accelerator for the reaction between the polyisocyanate and the polyol, and a foam stabilizer.

Abstract: The invention is concerned with the preparation of polyurethane compositions in which the deleterious effect of gaseous by-products formed in the reaction is minimized. This is achieved by the use of coupling reagents which incorporate a steric hindrance function. The latter does not interfere with the normal coupling reactions between the coupling agent and polymer matrix and filler material but it does prevent such reaction between the coupling agent and filler material as would cause release of low molecular weight compounds occluded by the filler. Since the release of low molecular weight compounds is avoided, the formation or evolution of gases which give rise to unwanted cellularity of the cured composition is at least minimized.

Abstract: The invention is a method of making a molded reaction injection molded elastomer which will release from its mold without the presence of externally applied mold release agents. The reaction injection molded (RIM) elastomer is made by injecting exactly two streams via a RIM machine into a mold cavity of the desired configuration, a formulation comprising in the first stream amine terminated polyethers of greater than 1,500 molecular weight, an amine terminated chain extender and an internal mold release agent, and in the second stream an aromatic polyisocyanate. The resulting RIM elastomer may be removed from the mold easily. RIM elastomers are useful, for example, for automobile body parts.

Abstract: A process for producing urethane-modified polyisocyanurate foams in which a poly(oxyalkylene-oxyethylene)polyether polyol is used as a modifying agent having the number of functional groups and the molecular weight in specific ranges with the equivalent ratio of NCO/OH being in a specific range and containing a specific quantity of ethylene oxide. The use of this modifying agent provides urethane-modified polyisocyanurate foams exhibiting excellent fire resistance and adhesion to an object surface.

Abstract: An improved polyurethane RIM process using a polycarboxy-functional alkyl siloxane as an internal release agent characterized by:(1) Tool break-in or preconditioning with siloxane treatment of the surfaces;(2) Supplying the siloxane to the mix head as a third stream when necessary to prevent undesired side reactions;(3) Using a minimal amount of siloxane that is inadequate for mold release in the absence of the tool preconditioning;(4) Adjustment of catalyst package to counter the inhibiting effects of the siloxane.The use of a bare minimal amount of siloxane prevents excess siloxane from appearing in the surface of the article and causing subsequent paint wet-out and like difficulties. The third stream isolating of the siloxane prevents its carboxy-functional groups from reacting with the prepolymer or with other ingredients that may be carried in the polyol blend.

Abstract: A low-density, low-friability, furfuryl-phenol thermosetting foam product is prepared by reacting, in the presence of a blowing agent and an acid catalyst, a furfuryl-alcohol monomer or polymer and a benzylic-ether phenol-formaldehyde resin, having a mole ratio of benzylic-ether phenol to formaldehyde of from about 1:3 to 1:11, which reaction provides a closed-cell, thermosetting foam product having a foam density of 0.5 pound per cubic foot or less.

Abstract: This invention relates to an improved method of producing impermeable cellular polyurethane elastomers from polyisocyanates, relatively high molecular weight polyhydroxyl compounds and water as chain lengthening and blowing agent to which additional chain lengthening agents may be added and it is characterized by the use of certain silicone derivatives. The new method makes it possible for impermeable cellular molded articles to be produced without the necessity of forming a skin on the surface, of the kind known, for example, in integral skin foams.

Abstract: A low-friability, flame-retardant, thermosetting foam product is prepared by reacting, in the presence of a blowing agent and a strong acid catalyst, a furfuryl-alcohol polymer and a phenol-formaldehyde resin, having a mole ratio of phenol to formaldehyde of from about 1:1.2 to 1:2.0, which reaction provides a low-friability, flame-retardant, thermosetting foam product.

Abstract: The method for improving cell structure with little or no shrinkage or foam collapse in molded high resilience open celled flexible polyurethane foams prepared by the reaction of an organic polyol having a hydroxyl functionality of at least 2 with an organic polyisocyanate in the presence of a blowing agent. This method comprises incorporating with the reactants three cell modifiers consisting of a polysiloxane-polyoxyalkylene copolymer, a polymethylsiloxane, and a polyether polyol cell modifier containing polyoxyethylene groups in amount of at least about 80 percent by weight of said polyether polyol.

Abstract: A novel elastomer having a very low compression set and a very slow recovery from compression comprises a flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, and is the reaction product of substantially linear polyols having hydroxyl end groups and an average molecular weight in the range 600 to 1200, with an aromatic isocyanate in less than stoichiometric amount. This elastomer can be used as one layer of an energy-absorbing material, in combination with a more difficultly compressible layer comprising a tough flexible polymeric matrix having a plurality of rigid hollow bodies embedded therein.

Abstract: Small particles of cellulose-containing plants and an oxidated silicon compound are mixed with an alkali metal hydroxide then heated to 150.degree. to 220.degree. C. while agitating thereby producing an alkali metal broken down lignin-cellulose silicate polymer which is then reacted with a polysubstituted organic compound to produce a broken down lignin-cellulose silicate copolymer.

Abstract: Small particles of cellulose-containing plants and an oxidated silicon compound are mixed with an alkali metal hydroxide then heated to 150.degree. to 220.degree. C. while agitating thereby producing an alkali metal broken down lignin-cellulose silicate polymer which is then reacted with a polysubstituted organic compound to produce a broken down lignin-cellulose silicate copolymer.

Abstract: Small particles of cellulose-containing plants are mixed with an alkali metal hydroxide and an oxidated silicon compound, then heated to 150.degree. C. to 220.degree. C. while agitating, thereby producing a broken-down lignin-cellulose silicate polymer which is then reacted with a substituted organic compound to produce an organic broken-down lignin-cellulose silicate polymer and may be used as molding powder and as a coating agent.

Abstract: A process for producing a laminate of polyisocyanurate foam which is the reaction product of a polymethylene polyphenylisocyanate and a polyol which is ethoxylated trimethylol propane, ethoxylated trimethylol ethane, ethoxylated pentaerythritol or ethoxylated glycerin. Laminates of such foams exhibit improved adhesion of the facing sheet.

Abstract: A process for manufacturing low density high resilience polyurethane foams utilizing as a foam stabilizer selected low molecular weight alkoxysilicon compositions containing from one to 18 silicon atoms in which the alkoxy-modifying group contains from 5 to 18 carbon atoms; solutions of such alkoxysilicon compositions; and the foams derived from such process.

Abstract: Small particles of lignin-cellulose-containing plants are mixed with an alkali metal silicate, then heated at 80.degree. C. to 120.degree. C. while agitating, thereby producing an alkali metal lignin-cellulose silicate polymer.

Abstract: Organosiloxane copolymers containing alkyl groups having from 5 to 20 carbon atoms that have beneficial utility as foam stabilizers in the manufacture of low density high resilience polyurethane foam; solutions of such copolymers; a process for producing low density high resilience polyurethane foam utilizing as a foam stabilizer said organosiloxane copolymers; and the foams derived therefrom.

Abstract: Polyurethane elastomeric foam by foaming a prepolymer or polyisocyanates and compounds having at least two hydrogen atoms reactive to isocyanates, and a chain-lengthening polyamine agent, in the presence of an expanding agent containing a component reactive with the polyamine chain-lengthening agent or with the products of reaction thereof with polyisocyanates, and split-off gas.

Abstract: Synthesis of integral skin microcellular polyurethane elatomers by reacting hydroxyl-terminated aliphatic polyesters with symmetrical diisocyanates, prepolymers of these isocyanates such as derived from p,p'-diphenylmethane diisocyanate and an aliphatic glycol and mixtures thereof, these are polymerized in the presence of an organic blowing agent, and one or more plasticizers such as of the formulae ##STR1## further enhancement of the results is brought about by the presence of catalysts and cell regulating agents, such as dimethylpolysiloxanes; the obtained elastomers are useful, such as for shoe soles and in the manufacture of other products, e.g., vibration dampening devices, floatation devices, gaskets and the like.

Abstract: Small particles of cellulose-containing plants and an oxidated silicon compound are mixed with an alkali metal hydroxide then heated to 150.degree. to 220.degree. C. while agitating thereby producing an alkali metal broken down lignin-cellulose silicate polymer which is then reacted with a polysubstituted organic compound to produce a broken down lignin-cellulose silicate copolymer.

Abstract: Flame retardant polyurethane foams are prepared from compositions containing as flame retardant additives, a select group of halogenated phosphate esters.