Ingredient Contains A Metal Atom Patents (Class 521/123)
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Patent number: 4529741Abstract: Moisture curable, foamable compositions that do not flow appreciably in the uncured state when applied on a vertical surface comprise an RTV elastomeric composition, a liquified blowing agent and finely divided silica in combination with either small diameter glass, metal or graphite fibers or carbon black. The RTV elastomeric composition comprises (1) at least one hydroxyl endblocked diorganosiloxane homopolymer or graft copolymer, and (2) an effective amount of a moisture reactive crosslinker for the hydroxyl endblocked polymer.Type: GrantFiled: October 26, 1984Date of Patent: July 16, 1985Assignee: Dow Corning CorporationInventors: Therese M. Bauman, Chi-Long Lee
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Patent number: 4521544Abstract: 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.Type: GrantFiled: February 24, 1983Date of Patent: June 4, 1985Assignees: Patrick J. Crehan, Richard J. FrickeInventor: Richard B. Kennedy
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Patent number: 4515908Abstract: The process for obtaining fiber-reinforced foams suitable to be transformed nto reinforced solid cellular materials having a density lower than 0.7 kg/l, if inert fillers are not present, and lower than 1 kg/l if inert fillers are present as well, essentially by mechanical incorporation of gas or a mixture of gases into an unsaturated polyester resin containing conventional additives is described. As reinforcing materials synthetic, vegetable or mineral fibers having a maximum length of 3 mm are employed. The mixture of the resin with the fibers, and optionally with the inert fillers, is conveyed by at least one pump to a mechanical foaming device which introduces into the mixture gas in form of small bubbles, homogeneously and uniformly distributed therein.Type: GrantFiled: April 2, 1984Date of Patent: May 7, 1985Assignee: Snia Viscosa Societa Nazionale Industria Applicazioni Viscosa S.p.A.Inventors: Massimo Mazzola, Aldo Cipriani
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Patent number: 4504603Abstract: A molded polyurethane foamed shape has finely ground dry fire-retardant particles containing a volatile active fire-retardant component which releases fire-retardant gas when exposed to fire and distributed throughout the shape and encapsulated by the polyurethane so as to protect the component against evaporation until exposed by initial burning of the shape.Type: GrantFiled: September 23, 1983Date of Patent: March 12, 1985Inventor: Hamilton Hicks
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Patent number: 4482513Abstract: A microwave lens is constructed of a homogeneous body of closed cell rigid polyurethane foam with aluminum flakes dispursed throughout and having a configuration defining an axis and opposed lens surfaces. The method of the invention includes selecting a mold having a cavity of the appropriate configuration, preheating the mold, and filling the mold with a mixture of low density polyurethane foam components and fine aluminum flakes evenly dispersed throughout the foam structure allowing the mixture to cool and form a body of the appropriate configuration.Type: GrantFiled: July 22, 1983Date of Patent: November 13, 1984Assignee: General Dynamics, Pomona DivisionInventor: Craig R. Auletti
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Patent number: 4461851Abstract: 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.Type: GrantFiled: August 26, 1983Date of Patent: July 24, 1984Assignee: General Electric CompanyInventor: Mitsuyoshi Hashimoto
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Patent number: 4460712Abstract: Compositions that cure rapidly to produce silicone foams and protective coatings are disclosed. These compositions comprise: (A) a certain liquid copolymeric polyorganosiloxane; and (B) an amino functional silicone polymer. For example, simple mixtures of the liquid copolymeric polyorganosiloxane and a polydiorganosiloxane having aminoalkyl substituents can be mixed together to form a resilient silicone foam. If the foam compositions are further provided with certain mineral fillers, a high degree of fire resistance is attained.Type: GrantFiled: December 23, 1983Date of Patent: July 17, 1984Assignee: Dow Corning CorporationInventors: John D. Blizzard, Terence J. Swihart
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Patent number: 4454251Abstract: Polyurea foam formulations, prepared by reacting a polymeric isocyanate with an aqueous activator component, and having incorporated therein a small but density-lowering and/or compressive strength enhancing amount of a lower-alkanol or alkylenediol, preferably having up to and including six (6) carbon atoms, especially isopropanol, are disclosed.Type: GrantFiled: April 22, 1983Date of Patent: June 12, 1984Assignee: Schaum-Chemie Wilhelm Bauer GmbH & Co. KGInventors: Kurt C. Frisch, Heinz Baumann
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Patent number: 4440876Abstract: A process for obtaining fiber-reinforced foams suitable to be transformed to reinforced solid cellular materials having a density lower than 0.7 kg/l, if inert fillers are not present, and lower than 1 kg/l if inert fillers are present as well, essentially by mechanical incorporation of gas or a mixture of gases into an unsaturated polyester resin containing conventional additives is described. As reinforcing materials synthetic, vegetable or mineral fibers having a maximum length of 3 mm are employed. The mixture of the resin with the fibers, and optionally with the inert fillers, is conveyed by at least one pump to a mechanical foaming device which introduces into the mixture gas in form of small bubbles, homogeneously and uniformly distributed therein.Type: GrantFiled: January 13, 1983Date of Patent: April 3, 1984Assignee: SNIA VISCOSA S.p.A. Societa Nazionale Industria Applicaziono ViscosaInventors: Massimo Mazzola, Aldo Cipriani
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Patent number: 4438221Abstract: Polyurethane foam products comprising a foam filled with a foam and a large amount of solid material inert to the foam products are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein or therewith solid materials inert to the foam. The inert material can be a fire- or combustion-retardant material; a material such as graphite or the like to render the foam conductive; or a filler material to impart various other characteristics. The polyurethane foam-filled foams can be tailored to have excellent physical characteristics and are particularly suitable for furniture upholstery, cushioning applications including in mattresses, and where special properties are required.Type: GrantFiled: May 23, 1983Date of Patent: March 20, 1984Assignee: Wm. T. Burnett & Co., Inc.Inventors: Roland N. Fracalossi, Walter V. V. Greenhouse, Michael S. Buchanan
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Patent number: 4438220Abstract: Polyurethane foam products comprising a foam filled with a foam and a large amount of combustion retardant materials are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein solid combustion retardant materials. The polyurethane foam-filled foams have excellent physical characteristics and, because of their combustion properties, are particularly suitable for furniture upholstery and cushioning applications including in mattresses.Type: GrantFiled: August 18, 1982Date of Patent: March 20, 1984Assignee: Wm. T. Burnett & Co., Inc.Inventors: Roland N. Fracalossi, Walter V. V. Greenhouse, Michael S. Buchanan
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Patent number: 4436841Abstract: A single-phase, storage-stable, emulsifier-free polyol mixture comprising 100 parts of a relatively high molecular weight polyoxyalkylene polyol of OH number from 20 to 120, which has at least 5% and less than 80% by weight, of terminal oxyethylene blocks; from 1 to 100 parts of a low molecular weight diol mixture which is a reaction product of ethylene glycol, butane diol-1,4, or a mixture of ethylene glycol and butane diol-1,4, with from 0.05 to 0.50 mols of alkyl oxiranes; from 0.1 to 5 parts of solubilizing additives comprising one or more salts, the cations of which are from Groups I, II and III of the Periodic Table, ammonium or mono- to tetra-alkyl ammonium ions, and the anions of which are produced by removing at least one proton from an acid having a K.sub.s value of at least 10.sup.-7 ; and, optionally, other compounds having isocyanate-reactive hydrogen atoms and other auxiliaries and additives for polyurethane production. Also polyurethanes produced using these polyol mixtures.Type: GrantFiled: May 24, 1983Date of Patent: March 13, 1984Assignee: Bayer AktiengesellschaftInventors: Werner Rasshofer, Wolfgang Reichmann, Adolf Richartz, Manfred Dietrich
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Patent number: 4435525Abstract: Low density foams are prepared from an admixture which comprises a medium which is polymerizable and/or crosslinkable by free radical initiation, carbonylhydrazine blowing agent, a peroxide curing agent, a suitable surfactant, and at least one transition metal salt promoter wherein at least one of the metal salts is a compound of iron or copper. The blowing agent in the presence of an effective amount of the transitional metal salt promoter improves the efficiency of the process.Type: GrantFiled: March 28, 1983Date of Patent: March 6, 1984Assignee: Pennwalt CorporationInventor: Ernest R. Kamens
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Patent number: 4430454Abstract: Polymeric foam compositions, useful as insulating material are obtained from the reaction of polymaleic anhydride with a hydroxyl-containing compound like ethylene glycol or its derivatives, in the presence of an organic isocyanate. Hydroxyl-containing compounds suitable for reaction with polymaleic anhydride include C.sub.2 -C.sub.10 diols, C.sub.3 -C.sub.6 trilos, C.sub.4 -C.sub.5 tetraols and their derivatives.Type: GrantFiled: May 9, 1983Date of Patent: February 7, 1984Assignee: FMC CorporationInventors: Harry M. Castrantas, Sidney Berkowitz
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Patent number: 4419460Abstract: The closed cell content of a phenolic is significantly increased by the incorporation therein of a finely divided hydrated alumina.Type: GrantFiled: July 6, 1981Date of Patent: December 6, 1983Assignee: Monsanto CompanyInventor: Stanley S. Ho
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Patent number: 4409361Abstract: A novel polymer is provided as the condensation reaction product of a non-aqueous mixture of a phenol and an aldehyde in a molar ratio of about 0.5 to 1 phenol to aldehyde, containing refractory fibers, such as carbon, graphite, silica, having an aspect and metal oxides and silicates, which fibers have an aspect ratio of about 10. The phenol is selected from metacresol, orthocresol, 3,5-dimethylphenol, resorcinol and substituted resorcinols, the preferred material being mostly resorcinol. The aldehyde is selected from furfural and mixtures of furfural and paraformaldehyde. The condensation polymerization reaction can be effected by adding an acid catalyst to the mixture or by employing a curing agent which provided a polyfunctional amine reactive with either or both the aldehyde and the phenol.Type: GrantFiled: November 4, 1981Date of Patent: October 11, 1983Assignee: Fiber Materials, Inc.Inventors: Lawrence E. McAllister, Herbert Dietrich
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Patent number: 4407980Abstract: A high temperature and flame resistant closed cell polyimide foam material and methods of making the foam. An aromatic tetracarboxylic acid dianhydride is reacted with an oxomine to produce an N-substituted imide, which is then esterfied with a suitable alcohol. The resulting liquid is dried and the dry residue is reduced to a uniform powder having particles with diameters generally in the 0.5 to 10 mm. range. The powder is preferably further dried, either before or after final size reduction, in a moderate vacuum at moderate temperature to remove any excess residual alcohol. The powder spontaneously expands to form a closed cell foam when heated to a temperature in the range of about 90.degree. to 150.degree. C. for a suitable period. When the powder is expanded in a closed mold, a well consolidated, uniform, closed cell foam product results. When expanded in an unrestricted manner, closed cell "macroballoons" having average diameters between about 0.4 and 15 mm. result.Type: GrantFiled: September 27, 1982Date of Patent: October 4, 1983Inventors: John Gagliani, John V. Long
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Patent number: 4400475Abstract: Polyurethane foams which may be rendered flame resistant by the addition of flame retardants are produced by reaction between a carbohydrate, a polyisocyanate and water in the presence of a suitable surfactant and polyurethane forming catalyst.Type: GrantFiled: November 23, 1982Date of Patent: August 23, 1983Assignees: Patrick James Crehan, Richard J. FrickeInventor: Richard B. Kennedy
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Patent number: 4397978Abstract: A fire suppressant composition is provided for particular use in polyurethane backed carpets for airplanes which suppressant comprises a combination of (1) an organic filler composition comprising (a) a hydrated alumina compound, (b) a hydrated zinc borate, (c) an inorganic lead-containing compound and (d) an inorganic antimony-containing compound and (2) a halogen-containing resin.Type: GrantFiled: April 28, 1982Date of Patent: August 9, 1983Assignee: The Dow Chemical CompanyInventors: Linda D. McKinney, Randall C. Jenkines
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Patent number: 4388419Abstract: Unsaturated polyester foams having fine and uniform cells are prepared at an atmospheric temperature from an admixture which comprises in combination a liquid unsaturated polyester resin, a hydrazide compound, a cobalt compound and a powdered inorganic compound selected from the group consisting of percarbonates, perborates and perphosphates.Type: GrantFiled: January 12, 1982Date of Patent: June 14, 1983Assignee: Eiwa Chemical Industry Co., Ltd.Inventor: Shinji Murakami
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Patent number: 4386166Abstract: A process of producing a modified polyester foam having a density of 0.Type: GrantFiled: May 7, 1981Date of Patent: May 31, 1983Assignee: Standard Oil Company (Indiana)Inventors: Gregory P. Peterson, Alan D. Hamilton
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Patent number: 4374207Abstract: Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from a reaction mixture comprising a polyether polyol, an organic polyisocyanate, a blowing agent, a surfactant, a catalyst, a flame retardant, and hydrated alumina. Alternatively, the mixture also comprises a low-viscosity linear polyester.The hydrated alumina is predispersed in a mixture comprising flame retardant and low-viscosity linear polyester, and alternatively a char former and a fugitive viscosity modifier.Type: GrantFiled: October 24, 1980Date of Patent: February 15, 1983Assignee: G.F.C. Foam CorporationInventors: Herman Stone, Peter D. Pauly, Pcolinsky, Jr.
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Patent number: 4370425Abstract: Process for the preparation of permanently self-extinguishing cellular maials essentially comprising brominated unsaturated polyester resins, containing conventional additives, having a density comprised between 300 and 700 g/l correlated to a resistance to compression, as of a formed product, higher than the curve shown in the attached FIG. 1, said process being characterized by the fact that a brominated unsaturated polyester resin, containing an amount of bound bromine comprised between 10 and 30%, preferably between 12 and 25% by weight, containing conventional additives, is subjected to foaming by mechanical incorporation therein of a gas or a gas mixture, until crosslinkable liquid foams are obtained, which latter are subsequently subjected to crosslinking by conventional methods. The present invention further refers to permanently self-extinguishing cellular materials thus obtained.Type: GrantFiled: November 5, 1980Date of Patent: January 25, 1983Assignee: Shia Viscosa Societa Nazionale Industria Applicazioni Viscosa S.p.A.Inventors: Giancarlo Carignani, Aldo Cipriani
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Patent number: 4368279Abstract: A method for mechanically foaming a silicone composition comprising (1) beating a gas a silicone composition which may be SiH olefin platinum catalyzed composition, a condensation type of two-component RTV composition or condensation type of one-component RTV composition and then holding the foamed composition for at least 60 seconds under vacuum of at least 600 millimeters of mercury so as to allow the foam to gel and cure.Type: GrantFiled: April 6, 1981Date of Patent: January 11, 1983Assignee: General Electric CompanyInventors: Frank J. Modic, Bruce E. Boudreau
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Patent number: 4367259Abstract: A sound deadening material is obtained with a very high loading of sound damping materials such as barium sulfate, calcium carbonate or metal powders. These materials are mixed with water and are bound together by adding a water-miscible isocyanate-terminated prepolymer which reacts with the water to form a cross-linked binder.Type: GrantFiled: July 27, 1981Date of Patent: January 4, 1983Assignee: W. R. Grace & Co.Inventors: Glenn E. Fulmer, Louis L. Wood
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Patent number: 4362626Abstract: An adsorbent, which is prepared by subjecting to curing a mixture consisting of (a) one part by weight of at least one member selected from the group consisting of titanium oxide hydrate, zirconium oxide hydrate and tin oxide hydrate and of (b) about 1/10 to 3 parts by weight of an epoxy, unsaturated polyester or polyurethane resin.The adsorbent can be used as an adsorbent for a great variety of anions and cations and especially as the adsorbent for phosphate ion.The adsorbent displays also improved chemical resistance, resistant to acids and alkalis, and can be subjected to repeated desorption and regeneration procedures without causing any deterioration of its adsorptive capacity, thus permitting the repeated usage over a long period of time.Type: GrantFiled: August 12, 1980Date of Patent: December 7, 1982Assignee: Takeda Chemical Industries, Ltd.Inventors: Tatsuro Takeuchi, Masaki Sokukawa, Ryuzo Kimoto
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Patent number: 4347331Abstract: A foamed, low density, highly extended, polymerized unsaturated polyester resin product which exhibits excellent fire, strength and insulative properties. The product is formed by combining a first component comprised of unsaturated polyester resin syrup, reactive, non-reinforcing, extender material capable of providing a blowing agent nd selected from the group consisting of inorganic carbonate compounds, inorganic bicarbonate compounds and mixtures thereof and, optionally, non-reactive, non-reinforcing extender material with a second component comprised of an aqueous solution of aluminum hydroxie chloride and, optionally, non-reactive, non-reinforcing, extender material. When the two components are combined as a composition mixture, the reactive, non-reinforcing, extender material and the aluminum hydroxie chloride solution react to provide a blowing agent and to form a solid product which chemically binds the water originally present.Type: GrantFiled: July 9, 1981Date of Patent: August 31, 1982Assignee: Tanner Chemical Company, Inc.Inventor: James M. Self
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Patent number: 4343910Abstract: Various surfaces are polished by buffing with compositions comprising a foamed polymeric material and a finely divided abrasive material. The abrasive material has a particle size number and a valley abrasion number the product of which falls within a predetermined range sufficient to provide good polishing upon buffing. Such compositions can be fashioned into articles of manufacture which are capable of buffing various surfaces.Type: GrantFiled: April 22, 1980Date of Patent: August 10, 1982Assignee: Chesebrough-Pond's Inc.Inventors: Francis W. Busch, Jr., Thomas J. Pallone, Gene R. Berube, Ambrish H. Vyas, Joseph R. Faryniarz, John A. Russo
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Patent number: 4341876Abstract: The instant invention relates to a process and an apparatus for the production of a foamable mixture from at least two fluid, foam forming reactants and aggregates, in which the aggregate is added to one of the reactants and the resulting preliminary mixture is then mixed with the other reactant.Type: GrantFiled: July 24, 1980Date of Patent: July 27, 1982Assignee: Bayer AktiengesellschaftInventors: Karl D. Kreuer, Klaus Schulte
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Patent number: 4340681Abstract: The present invention relates to a process for the manufacture of foamed or non-foamed compositions, in which one or more organic or inorganic compounds containing at least two isocyanate groups is or are reacted in the presence of an alkaline aqueous solution, an alkaline aqueous suspension or an alkaline aqueous slurry of an alkali metal hydroxide and/or alkaline earth metal hydroxide, and of one or more catalysts and, optionally, inert fillers and/or, optionally, one or more volatile substances as blowing agents. According to the invention, a mixture of the compound or compounds containing the isocyanate groups and the alkali metal hydroxide or oxide and/or alkaline earth metal hydroxide or oxide is added to a mixture of water and catalyst. The oxide employed is preferably calcium oxide.Type: GrantFiled: May 29, 1980Date of Patent: July 20, 1982Assignees: Reuter Technologie GmbH, Chemie-Anlagenbau Bischofsheim GmbHInventors: Franz G. Reuter, Karl-Heinz Hilterhaus
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Patent number: 4338407Abstract: An improvement is disclosed in the preparation of high resilience polyurethane foam. The improvement resides in the use of a select reaction mixture which includes a polyol containing an effectively dispersed finely divided solid particulate material and 1,4-cyclohexanedimethanol as a cross-linking agent to stabilize the reaction mixture.Type: GrantFiled: March 2, 1981Date of Patent: July 6, 1982Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4334031Abstract: In the preparation of conventional or high resiliency flexible polyurethane flame retarded foams by reacting organic polyisocyanates with polyols containing vinylic polymers and employing flame retardant compounds, less flame retardant compound is required to pass the California Bulletin No. 117 flame test when the particle size of the vinylic polymers is greater than 0.5 microns.Type: GrantFiled: January 12, 1981Date of Patent: June 8, 1982Assignee: BASF Wyandotte CorporationInventors: Jay G. Otten, Duane A. Heyman, John R. Murphy
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Patent number: 4327194Abstract: A select polyether polyol is used in preparing flexible polyurethane foam having desirable physical properties. The select polyether polyol is an oxypropylated, oxyethylated triol containing an effectively dispersed finely divided solid particulate material. The resulting foam is of utility in various applications, such as cushioning.Type: GrantFiled: February 2, 1981Date of Patent: April 27, 1982Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4317889Abstract: Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from a reaction mixture comprising a polyester polyol, an organic polyisocyanate, a blowing agent, a surfactant, a catalyst, a melamine derivative wherein one or more hydrogens have been replaced by a methylol and/or lower alkoxymethyl group, a flame retardant, and hydrated alumina. In a preferred embodiment, the hydrated alumina is predispersed in a mixture comprising the melamine derivative, the flame retardant, and a low-viscosity linear polyester polyol.Type: GrantFiled: October 24, 1980Date of Patent: March 2, 1982Assignee: Tenneco Chemicals, Inc.Inventor: Michael P. Pcolinsky, Jr.
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Patent number: 4315078Abstract: Flexible polyurethane foams are described which are the product of reaction under foam producing conditions of a combination of (a) an aromatic polyisocyanate; (b) a polyether polyol with the optional use of a minor amount of a cross-linking polyol; (c) antimony oxide; (d) a polyhalogenated aromatic compound; and (e) a hydrated inorganic salt.The foams have flame retardant properties superior to those of the prior art while at the same time having physical properties equal or superior to the prior art materials. Accordingly, the foams of the invention meet very stringent tests for fire retardance required of seat cushioning, mattresses, and like materials in aircraft, institutions such as hospitals, convalescent homes, and the like.Type: GrantFiled: July 23, 1980Date of Patent: February 9, 1982Assignee: The Upjohn CompanyInventor: Carlos J. Anorga
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Patent number: 4296209Abstract: A method and material for cementing solid animal tissue in situ is disclosed. Fractured and broken bones, roots of teeth, prosthetic devices and the like are cemented in place and by means of a composition which, when mixed and applied, foams to form a porous cement and cures in place having effervescent, adhesive and partially reabsorptive properties.Type: GrantFiled: March 26, 1980Date of Patent: October 20, 1981Inventor: Dobrivoje Tomic
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Patent number: 4293657Abstract: Stable melamine-polyoxyalkylene polyether polyol dispersions are prepared by the in situ reduction of melamine particles wherein 90 percent of the melamine particles have a particle size of less than 10 microns. Stabilizers for the melamine-polyol dispersion are selected from the group consisting of(a) silicic acids and silicates,(b) salts of perfluorinated alkyl carboxylic acids having 4 to 20 carbon atoms, salts of alkyl sulfonic acids and perfluorinated alkylsulfonic acids having 4 to 20 carbon atoms and polyperfluoroether polyols having molecular weights of 300 to 6000, and(c) salts of fatty alcohol sulfates having 6 to 30 carbon atoms.These dispersions are useful for the preparation of polyurethane foams.Type: GrantFiled: July 7, 1980Date of Patent: October 6, 1981Assignee: BASF AktiengesellschaftInventors: Dietmar Nissen, Matthias Marx, Wolfgang Jarre, Ernst Schoen, Walter Decker
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Patent number: 4292413Abstract: Epoxy compounds will react chemically with an amine to produce an epoxy prepolymer that will produce a self-standing cellular solid product upon heating.Type: GrantFiled: June 25, 1980Date of Patent: September 29, 1981Inventor: David H. Blount
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Patent number: 4291129Abstract: A low reactive pressure flame-retardant polyurethane foam made by reacting together a polymeric isocyanate, a polyol, an aqueous solution of a carbohydrate, calcium acid phosphate, sodium aluminum sulfate, sodium bicarbonate, and a flame retardant. A blowing agent may be present.Type: GrantFiled: June 25, 1980Date of Patent: September 22, 1981Assignees: Patrick James. Crehan, Richard J. FrickeInventor: Richard B. Kennedy
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Patent number: 4288564Abstract: The instant invention is directed to a process for the production of microcellular elastomeric moldings comprising:(A) introducing a reaction mixture into a closed mold, said reaction mixture comprising:(i) an organic polyisocyanate,(ii) a hydroxyl group containing compound having a molecular weight of from 1800 to 12,000,(iii) a catalyst for the reaction between hydroxyl groups and isocyanate groups,(iv) an active aromatic diamine having at least one alkyl substituent in the orthoposition to a first amino group and two alkyl substituents in ortho-position to a second group, and(v) air and/or nitrogen dissolved under pressure in any one or more of Components (i), (ii), (iii) or (iv),(B) allowing said reaction mixture to react in said mold and(C) removing the resultant product from said mold, the improvement wherein in any of Components (i), (ii), (iii) or (iv) which does contain said air and/or nitrogen dissolved therein there is included an inorganic, finely divided, nitrogen adsorbing agent in an amount sufType: GrantFiled: June 28, 1979Date of Patent: September 8, 1981Assignees: Mobay Chemical Corporation, General Motors CorporationInventors: Steven M. Conover, Robert M. Loring, William A. Ludwico, John W. Arnold, George Ferber
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Patent number: 4288559Abstract: The instant invention is directed to a process for the production of flame resistant foams by the impregnation of polyurethane foams with a dispersion consisting substantially of an aluminum hydroxide, a polyurethane latex, an alumino-silicate and surface active substances which results in foams having very desirable mechanical properties as well as excellent flame resistant properties.Type: GrantFiled: November 1, 1979Date of Patent: September 8, 1981Assignee: Bayer AktiengesellschaftInventors: Hans-Walter Illger, Manfred Dahm, Alberto C. Gonzalez-Dorner
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Patent number: 4287309Abstract: Flexible or semiflexible low density polyetherurethane foams containing antimony trioxide, zinc oxide and a brominated diphenyl ether or oxide having from 4 to 10 bromine atoms exhibit good flame retardant properties and also exhibit good resistance to smoldering.Type: GrantFiled: July 2, 1980Date of Patent: September 1, 1981Assignee: The General Tire & Rubber CompanyInventor: David S. Cobbledick
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Patent number: 4282329Abstract: The instant invention is directed to a process for the production of non-disintegrating suspensions of inorganic fillers in polyhydroxyl compounds of the type used for the production of polyurethanes, comprising reacting a suspension of an inorganic filler in a polyhydroxyl compound with from 0.1 to 2%, by weight, of a polyisocyanate, based on the weight of the suspension, at a temperature of from 30.degree. to 200.degree. C. The invention is also directed to the use of the suspension as the polyol component in the production of cellular polyurethane plastics.Type: GrantFiled: July 21, 1980Date of Patent: August 4, 1981Assignee: Bayer AktiengesellschaftInventors: Wulf von Bonin, Peter Vehlewald, Hans-Walter Illger
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Patent number: 4281069Abstract: A phenolic foam produced without the use of a conventional chlorofluorocarbon or hydrocarbon blowing agent is disclosed. The phenolic foam is produced as the reaction product of a mixture comprising a phenolic resole, a surfactant and stannous chloride. The phenolic foams can be formulated to contain a substantial proportion of closed cells.Type: GrantFiled: May 14, 1980Date of Patent: July 28, 1981Assignee: Armstrong World Industries, Inc.Inventor: Thomas G. Harris
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Patent number: 4281073Abstract: A method of producing cross-linked unsaturated polyesters from a solution of a linear unsaturated polyester in a cross-linking agent, wherein a reaction medium comprising said solution and containing free hydroxyl radicals is brought in contact, at room temperature and under atmospheric pressure, with at least one hydrolyzable chlorine-containing derivative in an amount from 0.1 to 10% by weight, based on said solution.Type: GrantFiled: September 18, 1978Date of Patent: July 28, 1981Assignee: Martine Anciaux widow VastesaegerInventor: Joseph P. Michel
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Patent number: 4278770Abstract: Polyol compositions containing effectively dispersed particulate material featuring critical dispersion characteristics are used to stabilize foam reaction in high resilience polyurethane foam.Type: GrantFiled: January 25, 1979Date of Patent: July 14, 1981Assignee: Olin CorporationInventors: Kiran B. Chandalia, Henry G. Barnowski
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Patent number: 4277570Abstract: A method of producing cross-linked unsaturated polyesters from a solution of a linear unsaturated polyester in a cross-linking agent, wherein a reaction medium comprising said solution and containing free hydroxyl radicals is brought in contact, at room temperature and under atmospheric pressure, with at least one hydrolyzable chlorine-containing derivative in an amount from 0.1 to 10% by weight, based on said solution.Type: GrantFiled: April 3, 1980Date of Patent: July 7, 1981Assignee: Martine Anciaux widow WastesaegerInventor: Joseph P. Michel
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Patent number: 4275172Abstract: Described herein is a frothable thermosetting polyurethane-forming composition, a process for producing a curable froth from said composition, a process for applying the curable froth to a substrate and a cured cellular polyurethane produced from the curable froth.Type: GrantFiled: January 28, 1980Date of Patent: June 23, 1981Assignee: Union Carbide CorporationInventors: Bruce P. Barth, Robert N. Johnson, Walter P. Mayer
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Patent number: 4271273Abstract: Rigid isocyanurate urethane polymers useful for insulation purposes and characterized by superior thermal stability are prepared by reacting an excess of polymeric isocyanate with butenediol in the presence of blowing agent and catalyst.Type: GrantFiled: June 25, 1979Date of Patent: June 2, 1981Assignee: GAF CorporationInventors: Jerome B. Biranowski, Donald H. Lorenz, Simon W. Kantor
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Patent number: RE31757Abstract: A low reactive pressure flame-retardant polyurethane foam made by reacting together a polymeric isocyanate, a polyol, an aqueous solution of a carbohydrate, calcium acid phosphate, sodium aluminum sulfate, sodium bicarbonate, and a flame retardant. A blowing agent may be present.Type: GrantFiled: November 23, 1982Date of Patent: December 4, 1984Assignees: Patrick J. Crehan, Richard J. FrickeInventor: Richard B. Kennedy