Matches 51 - 100 out of 265 < 1 2 3 4 5 6 >
Match Document Document Title
5084486 Reactive feed stream to replace inert blowing agent feed stream in a polyurethane foam process  
A process for manufacture of molded, high resiliency, polyurethane foam substantially free of volatile organic blowing agents comprising feeding at least three streams into a mixing device to form...
5075343 Flame-retardant polyurethane foam utilizing boric acid  
Flame retardant polyurethane foams are produced by mixing and reacting a polyol, a low molecular weight compound with 1 or more active hydrogen, an organic polyisocyanate and an acidic boron...
5039712 Open-celled flexible polyurethane foams and a process for their production  
Open-celled, elastic, flexible polyurethane foams are made without using a chlorofluorocarbon blowing agent. A polyisocyanate is reacted with a polyether in the presence of water and from about 0.1...
4980386 Methods for the manufacture of energy-attenuating polyurethanes  
A method for the manufacture of shock attenuating, low rebound polyurethanes in which polyols are reacted with polyisocyanates having a functionality of at least 2.3 at an isocyanate index of from...
4957944 Urethane catalysts  
Certain dimethylamino alkyleneoxy isopropanols obtained by propoxylation of dimethylamino alkanols and ethers is used as a catalyst for preparing polyurethane foam.
4830883 Polyimide foam precursor and its use in reinforcing open-cell materials  
Open-cell structures are filled with polyimide foam formed in place by the use of a foam precursor in powdered form comprised of a combination of (a) the reaction product of an excess of organic...
4772639 Process for the production of molded polyurethane parts  
The present invention is directed to a process for the production of light-resistant, optionally foamed elastomeric molded polyurethanes by reacting (a) organic polyisocyanates which are either...
4748192 Aliphatic polyurethane sprayable coating compositions and method of preparation  
An aliphatic, isocyanate-base, polyurethane polymer and a process for preparing the polymer. The process comprises reacting, such as by spraying onto a substrate or an open mold, a caprolactone...
4738989 Aliphatic polyurethane compositions and method of preparation  
An aliphatic, isocyanate-base, polyurethane polymer and a process for preparing the polymer. The process comprises reacting, such as by spraying onto a substrate or an open mold, a caprolactone...
4666949 Thermochromic polyurethane foam  
A thermochromatic polyurethane foam comprising a polyol and a polyisocyanate as main components, and a thermochromic composition serving as a coloring agent and added to the main components singly...
4644019 Modified terephthalic ester polyols and rigid foams therefrom  
The preparation of isocyanurate foams from a recycled polyethylene terephthalate polyol modified with a polyethoxylated nonylphenol is disclosed. These modified foams exhibit improved fluorocarbon...
4618630 Organic polymer composition containing an antistatic agent comprising a nonvolatile ionizable metal salt and a salt or ester of a carboxylic acid  
An antistatic additive for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a non-ionizable salt or ester of an organic acid.
4598103 Catalyst systems for polyurethane compositions  
A catalyst composition is disclosed for polyurethane production by reaction between aliphatic hydroxyl-containing compounds and secondary or tertiary aliphatic isocyanate group-containing...
4549945 UV Cured polyurethanes using organotin promoters  
A photocurable composition consisting essentially of the mixture of a diisocyanate compound, a polyol and certain UV light sensitive organotin compounds. The photocurable composition is cured by...
4544679 Polyol blend and polyisocyanurate foam produced therefrom  
The present invention is directed to a polyol blend comprising: (a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having...
4542165 Polyurethane based on epoxy-containing polymer polyol and process for making the same  
Polyurethane resins having high rigidity and improved physical properties such as mechanical strengths and heat resistance are obtained by reacting a polyisocyanate with a polymer polyol derived...
4520141 Method for manufacturing phenolic resin foam  
A method for manufacturing a phenolic resin foam is provided which comprises the steps of mixing a composition consisting of 100 parts by weight of a resol-type phenol-formaldehyde resin, 5 to 40...
4520042 High-modulus, flexible urethane coating and method of preparation  
A high-modulus, solid urethane spray coating is prepared by spraying onto a substrate equal volumes of an A-side and a B-side mixture together, the A side comprising 100 parts of a prepolymer...
4473667 Elastomeric foam  
A simplified method of manufacturing a silicon elastomeric foam comprises mechanically generating a stable froth of an aqueous silicone emulsion, while adding surfactant and thickener, then...
4469657 Rim elastomers with improved catalyst efficiency  
The invention is a method for making reaction injection molded polyurethane of improved properties and decreased catalyst usage. The product is formulated by placing the tin catalyst in the...
4464490 Amino and amido dialkyl tin carboxylates and their use in preparing polyurethane products  
Amino and amido dialkyltin dicarboxylates and stannoxy carboxylates are prepared by first reacting an amine or amino alcohol with a dicarboxylic acid anhydride, followed by reaction of the...
4463050 Polyurethane catalyst system additive which permits the use of relatively "cold" molds  
A method for making polyurethanes in a mold that is cooler than usual; i.e., at a temperature less than 120° F., is described. Normally, polyurethanes made in relatively "cold" molds contain...
4454253 Polyurethane foam game ball, composition and process  
An improved game ball is manufactured from a polyurethane foam prepared from a hydroxyl-containing diene polymer, a catalyst system comprised of a tin compound and a tertiary amine and a surfactant...
4454252 Process of sealing and strengthening water-bearing geological formations by means of polyurethane-resin-forming compositions  
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...
4444920 Aromatic polyols made from alkylene glycols and waste streams from the manufacture of dimethyl terephthalate containing methyl p-formylbenzoate  
Mixtures of aromatic polyols containing ester functionalities suitable for use in rigid foams prepared by reacting a dimethyl terephthalate waste stream containing methyl p-formylbenzoate over a...
4420570 Reaction injection molded elastomer containing an internal mold release made by a two-stream system  
The invention is a method of making a molded reaction injection molded elastomer which will release from its mold with reduced frequency of application of external mold release agents. The reaction...
RE31340 Process for the production of poly (polyisocyanate-polyol-alkali metal silicate) solid  
Poly (polyisocyanate-polyol-alkali metal silicate) solid or foamed products are produced by mixing a dry granular alkali metal silicate with a polyol while heating to form an emulsion which is then...
4390640 Process for the production of optionally-foamed polyurethanes  
This invention relates to a process for the production of polyurethanes, particularly polyurethane foam moldings having a compact skin and a cellular core, using special tin activators.
4390642 Flame-retardant, thermosetting foam product and method of preparing same  
A flame-retardant, rigid, thermosetting foam product is prepared by reacting, in the presence of a blowing agent and a catalyst, particularly an organic metal catalyst, a furfural alcohol polymer,...
4390641 Flame-retardant benzylic-ether phenolic modified foam and method of preparing same  
A method of preparing a flame-retardant benzylic-ether phenolic modified foam product and the resulting foam product produced thereby, which method comprises reacting and mixing benzylic-ether...
4386166 Foam prepared from an unsaturated polyester resin copolymerization monomer, low molecular weight polyol, and isocyanate  
A process of producing a modified polyester foam having a density of 0.5 to 40 pounds per cubic foot comprising mixing on a weight basis a polyol composition A comprising unsaturated polyester...
4365670 Methods of forming isocyanate polymers for earth-sealing operations  
Methods of sealing particular areas, including subterranean well formations, are provided wherein the methods utilize an isocyanate polymer suitable as a sealing agent having a controllable...
4358547 Novel catalyst system for rim elastomers  
The invention is a method for making reaction injection molded polyurethane of improved properties. The product comprises the reaction product of a high molecular weight amine based polyol, a low...
4356274 Smoke suppressed rigid polyurethane foam  
Smoke suppressed rigid polyurethane foams are prepared from a reaction mixture comprising as the smoke suppressant additive a metal salt of a: dialkyl dithiocarbamate, a mercaptobenzothiazole, a...
4353995 Novel catalyst system for polyurethane foams  
The instant invention is directed to a novel catalyst system for the production of polyurethane resin, and the method of use of such catalyst system. The catalyst systems of the instant invention...
4341875 High flexural modulus reaction injection molded urethanes  
A two-part liquid composition capable of being mixed with a foaming agent and placed in a reaction injection molding apparatus to form a microcellular composition, which when cured yields a...
4310632 Process for the manufacture of polyurethane foam  
A process for making a polyurethane which comprises reacting an organic polyisocyanate with a higher molecular weight organic polyhydroxyl compound in the presence of a catalyst having the...
4304875 Polyurethane foaming composition comprising triorganosilylated polypentaerythritol stabilizer  
A flexible, elastic, uniform polyurethane foam is cold foamed and set from a composition of matter comprising (i) a polyisocyanate, (ii) a polyether-polyol having a molecular weight ranging from...
4303755 Safety fuel tank containing reticulated polyurethane foam mixture of poly(oxypropylene-(oxyethylene)polyetherpolyols  
A safety fuel tank for automobiles and the vehicles, wherein substantially skeletal reticulated flexible polyurethane foam is integrally foamed, is produced by reacting a mixture of (a)...
4298701 Process for the production of elastic shaped articles  
This invention relates to an improved single-stage process for the production of elastic shaped articles having an impervious surface layer by the reaction injection molding technique in which...
4286073 Urethane catalysis  
Hydrolytically stable premix compositions for preparation of urethane foams are prepared by employing as the organotin catalyst in such premix composition a di- or tri-alkyltin sulfonate...
4284730 Liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate compositions and microcellular foams made therefrom  
The invention relates to carbodiimide- and/or uretonimine-isocyanurate-containing polyisocyanates, to the process for their preparation, and to microcellular foams prepared therefrom. These...
4275172 Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards  
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...
4273885 Novel catalyst system for RIM elastomers  
The invention is a method for making reaction injection molded polyurethane of improved properties. The product comprises the reaction product of a high molecular weight polyhydric polyether, a low...
4263423 Process for the preparation of polyurethane casting elastomers  
The instant invention is directed to a process for the production of a light fast, transparent polyurethane elastomer comprising reacting: (A) from 90 to 50% by weight, based on the polyurethane...
4256841 Manufacture of light-stable polyurethane integral foams  
To prepare light-stable polyurethane integral skin foams, especially soft integral foams, aliphatic and/or cycloaliphatic polyisocyanates, both categories preferably containing urethane groups...
4251636 Stannous halide complexes and their use in preparing polyurethane foams  
Use of stannous halide alcohol complexes, typified by the complex of stannous chloride and triethylene glycol, as catalysts permits production of urethane elastomers characterized by freedom from...
4248930 The production of polyurethane resins and laminates  
A process is disclosed for producing polyurethane resins using novel catalysts selected from the group consisting of a process for the production of cellular or non-cellular polyurethane resins...
4243760 Reaction injection molded polyurethane  
Covers a polyurethane elastomer of improved moldability, particularly useful in RIM applications which comprises the reaction product of an aromatic polyisocyanate, a high molecular weight...
4242463 Color stable integral skin foam  
This disclosure relates to a new color stable integral skin polyurethane foam and method of producing the same wherein an integral skin foam is provided which will not "yellow" or change color...
Matches 51 - 100 out of 265 < 1 2 3 4 5 6 >