| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Adherence of automotive body and trim parts | US552820 | 1995-11-03 | US5681868A | 1997-10-28 | Dean A. Waldenberger; Charles A. Smith |
| A pressure sensitive adhesive consisting of a polyurethane foam is used for adhering decorative parts to automobiles and other vehicles. The adhesive is characterized by high tensile strength and elongation, excellent peel strength and good thermal and mechanical stress tolerance. | ||||||
| 82 | Three component polyol blend for use in insulating rigid polyurethane foams | US756650 | 1996-11-26 | US5677359A | 1997-10-14 | Walter R. White, III; James A. Mullins; Thomas B. Lee; Keith McLellan; Ronald J. Wierzbicki |
| There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least: a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; and c) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more. The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. Also disclosed are a storage stable polyol composition and methods for making a polyisocyanate based rigid closed cell foam. | ||||||
| 83 | Process of the preparation of modified polyisocyanurate foams for heat insulation materials | US493409 | 1995-06-22 | US5627220A | 1997-05-06 | Morihiro Matsumoto; Noboru Yoshida; Kiyotake Morimoto; Satoshi Nakamura |
| A process of the preparation of the modified polyisocyanurate foams provided by a reaction of a polyisocyanate with a polyol composition mixture comprising a polyol, water, a trimerization catalyst, a carbodiimide catalyst, and an aromatic compound used as a chain extender. An amount of the aromatic compound used in the preparation is 0.5 to 10.0% by weight with respect to a total weight of the polyisocyanate and the polyol mixture. | ||||||
| 84 | Reactive hot melt foam | US390443 | 1995-02-17 | US5616625A | 1997-04-01 | Ju-Ming Hung; James W. Nowicki |
| A process for foaming polyurethane reactive hot melt adhesive comprising the steps of:a) melting a reactive polyurethane adhesive containing 0.05 to 0.5% by weight of a 2,2'dimorpholinodiethyl ether or di(2,6-dimethylmorpholinodiethyl)ether catalyst in a heated reservoirb) pumping the adhesive from the heated into a heated reservoir recirculating foaming device;c) foaming the adhesive by injecting therein an effective amount of an anhydrous gas;d) discharging a portion of the foamed adhesive through an orifice onto a substrate to be bonded; ande) recirculating the remaining foamed adhesive back to the foaming device for discharge at a later time. | ||||||
| 85 | Insulating rigid polyurethane foam compositions | US551507 | 1995-11-01 | US5547998A | 1996-08-20 | Walter R. White, III; James A. Mullins |
| There is now provided storage stable polyol compositions and polyisocyanate based rigid dosed cell foam made by reacting an organic isocyanate with polyol compositions in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;and the blowing agent is at least cyclopentane in an amount of 7 weight percent or more based on the weight of the polyol composition; and further, the cyclopentane blowing agent is soluble in the polyol composition, and the amount of the aliphatic amine initiated polyoxyalkylene polyether polyol is 10 weight percent or less based on the weight of the polyol composition.The polyol composition is adapted to solubilize cyclopentane in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam. It was surprising to discover that less than 10 weight percent of the aliphatic amine initiated polyol was need to accomplish these objectives, and it was further surprising to discover that the aromatic amine initiated polyether polyol improved the thermal insulation of the foam. | ||||||
| 86 | Process for the production of plastics containing amide groups | US256993 | 1994-07-29 | US5527876A | 1996-06-18 | Hermann Kluth; Peter Daute; Johann Klein; Roland Gruetzmacher; Wolfgang Klauck |
| The invention relates to a process for the production of plastics containing amide groups with elimination of CO.sub.2 by reaction of polyfunctional isocyanates, carboxylic acids and, optionally, alcohols in the presence of tertiary amines, more particularly heteroaromatic amines. The heteroaromatic amines preferably contain another heteroatom and/or substituents having +I and/or +M effects. The reaction preferably starts at room temperature. Fine-cell foams having an acid value of less than 40 and a density of at most 150 g/l can be produced in short reaction times at room temperature without any need for additional blowing agents. | ||||||
| 87 | Process for the preparation of polyurethane rigid foams having a low thermal conductivity and their use | US57717490 | 1990-09-04 | US5096933B1 | 1996-03-26 | VOLKERT OTTO |
| 88 | Catalyst for polyisocyanurate foams made with alternative blowing agents | US386391 | 1995-02-10 | US5470889A | 1995-11-28 | Michael E. Londrigan; Kenneth G. Trout |
| Rigid, closed cell polyisocyanurate foams are prepared by reacting together a polyisocyanate and a polyester polyol or a mixture of a polyester polyol and at least one other isocyanate-reactive compound in the presence of (a) a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent and (b) a catalyst mixture comprising (i) a carboxylate salt of an alkali metal or an alkaline earth metal or mixtures thereof, (ii) a tertiary amine, and (iii) a quaternary ammonium carboxylate salt, wherein the mole ratio of carboxylate metal salt: tertiary amine is a value less than about 2:1, and the total moles of quaternary ammonium carboxylate salt are less than the combined moles of the carboxylate metal salt and the tertiary amine. | ||||||
| 89 | Process for the production of polyurethane foams | US206784 | 1994-03-04 | US5416130A | 1995-05-16 | Ulrich Liman; Heinz Eickhaus; Gerd Steinert |
| A process for the production of polyurethane foams, in particular for the production of composite articles by back-foaming a plastics film as covering layer by the reaction ofa) one or more polyisocyanates withb) a polyol component which is free from salt groups in the presence ofc) at least one blowing agent,d) alkali metal carboxylates ande) from 0.01 to 30% by weight, based upon the weight of component b), of one or more organic compounds which are different from components a) through d), which are free from tertiary amino groups, metal and phosphorus and which have a dipole moment above 2.0 Debye. | ||||||
| 90 | Surfactant for polyisocyanurate foams made with alternative blowing agents | US202617 | 1994-02-28 | US5362764A | 1994-11-08 | Michael E. Londrigan; Kenneth G. Trout |
| A closed cell, rigid polyisocyanurate foam which comprises the reaction product of a polyisocyanate and a polyol in the presence of (a) a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent, and (b) a siloxane oxyalkylene copolymer (i) having a molecular weight below about 7500 and an oxyalkylene portion containing greater than 60 weight percent of oxyethylene units and (ii) being prepared by the reaction of an organohydrogensiloxane with a polyoxyalkylene in an essentially solventless system or in the presence of a high boiling point polar polyol. | ||||||
| 91 | Polyisocyanurate foams made with polyester polyols and chlorodifluoromethane as a blowing agent | US608855 | 1990-11-05 | US5124366A | 1992-06-23 | David G. Gluck; John P. Oliver |
| A process for the manufacture of a rigid, closed-cell polyisocyanurate foam from a foam forming mixture comprising an organic polyisocyanate, a polyol, a blowing agent, and a catalyst, utilizing a polyester polyol as the sole polyol, and chlorodifluoromethane or a mixture of chlorodifluoromethane and at least one co-blowing agent as the blowing agent. | ||||||
| 92 | Polyurethane carpet-backing process based on soft segment prepolymers of diphenylmethane diisocyanate (MDI) | US630597 | 1990-12-20 | US5104693A | 1992-04-14 | Randall C. Jenkines |
| Polyurethane-backed substrates such as attached cushion carpeting are prepared from a polyurethane forming composition based on a soft segment prepolymer of MDI or an MDI derivative. The use of the prepolymer provides a backing having good strength properties and good resiliency. | ||||||
| 93 | Insulating wall for refrigerator devices | US572056 | 1990-08-23 | US5009952A | 1991-04-23 | Wilhelm Klepsch; Dietmar Plobst |
| An insulating wall for refrigerator devices, wherein a polyurethane is foamed between an exterior metal sheet and a deep-drawn plastics material plate selected from a member of the group of polystyrole or acrylonitrile-butadiene-styrene, wherein the cell-gas of the polyurethane foam is carbon dioxide and wherein the plastics material plate comprises in its interior a blocking layer of 0.03-0.6 mm thickness formed of a copolymer of polyethylene and vinyl alcohol where the molar percent of polyethylene in the copolymer is in the range of 32-44. | ||||||
| 94 | Foam laminates which include ASTM E-84 class 1 rated foams | US418429 | 1989-10-06 | US4940632A | 1990-07-10 | William J. Nicola; Wolfgang W. Reichmann |
| A foam laminate comprising a polyurethane foam core sandwiched between two facing material, wherein said foam core has: a flamespread as determined by ASTM E-84 of 25 or less, a smoke density as determined by ASTM E-84 of less than 450, a dimensional stability measured as a % volume change as determined by ASTM D-2126, after 28 days (1) at -30.degree. C. of no more than 1, (2) at 100.degree. C. of no more than 8, and (3) at 70.degree. C. and 100% relative humidity of no more than 12, and a firmness of no more than 0.6 centimeters after 5 minutes. The foam core is produced by reacting: a polymethylene poly(phenyl isocyanate) based isocyanate, one or more aromatic polyester polyols having hydroxyl functionalities of 2.4 or more and hydroxyl numbers of 350 or more, one or more polyether polyols having hydroxyl functionalities of 4 or more and hydroxyl numbers of 340 or more, one or more flame retardants, and, one or more blowing agents, one or more catalysts, and one or more surfactants. | ||||||
| 95 | Alkoxylated aromatic amine-aromatic polyester polyol blend and polyisocyanurate foam therefrom | US682119 | 1984-12-17 | US4555418A | 1985-11-26 | Scott C. Snider; Alberto DeLeon |
| Polyisocyanurate foams are prepared by reacting together an organic polyisocyanate, a blowing agent, a trimerization catalyst, and a minor amount of a polyol blend comprising(a) about 5 percent to about 95 percent by weight of said blend of an alkylene oxide adduct of an aromatic amine of the formula ##STR1## wherein Z is a divalent aromatic radical, x, x', y, and y' each independently have an average value from about 1 to about 5, and each R is independently selected from the group consisting of hydrogen, alkyl or aryl, provided that the adduct is capped with ethylene oxide units, and(b) about 5 percent to about 95 percent by weight of said blend of an aromatic polyester polyol having a molecular weight of from about 150 to about 5,000. Laminates of such foams exhibit a high degree of fire resistance, low foam friability, high compressive strength, and excellent facer adhesion. | ||||||
| 96 | Composite building panel | US408939 | 1982-08-17 | US4459334A | 1984-07-10 | Robert H. Blanpied; Russell K. Odland; Walter Z. Vaden |
| A composite panel for use in the construction industry includes a core of foamed plastic material and a skin on at least one of its faces comprised of a two-ply material consisting of aluminum foil bonded to a mat of randomly oriented glass fibers into which the foam core has been expanded.The core material comprises the rection product of isocyanurate and polyester/polyether polyol with the isocyanurate in sufficient excess to form trimmer rings and to react with the polyol to form urethane linkages.Panels formed of the core material and the two-ply skins have excellent thermal insulation and fire retardant properties and the skins have excellent mechanical strength. | ||||||
| 97 | Polymeric foams from transesterified by-product derived from manufacture of dimethyl terephthalate and laminates therefrom | US344459 | 1982-02-01 | US4411949A | 1983-10-25 | Scott C. Snider; Alberto DeLeon |
| Cellular foams, particularly polyisocyanurate foams, are prepared by reacting together an organic polyisocyanate, a blowing agent, a trimerization catalyst, and a minor amount of a polyol mixture prepared by the transesterification with a glycol of a by-product fraction from the manufacture of dimethyl terephthalate, the major portion of said fraction comprising about 15 to 70 weight percent of dimethyl terephthalate, and about 85 to 30 weight percent of a mixture of monomethyl terephthalate, bi-ring esters and polymeric materials. Laminates of such foams exhibit a high degree of fire resistance, low smoke evolution on combustion, low foam friability and high compressive strength. | ||||||
| 98 | Catalyst initiated prepolymer systems | US325315 | 1981-11-27 | US4395530A | 1983-07-26 | James A. Hammond |
| A process for the manufacture of a polyurethane prepolymer adhesive by a catalyst initiated reaction of polyol and isocyanate copolymers is performed under room temperature conditions, and in convenient quantities for application, storage, and transportation purposes. Compounding includes alternatives of catalyst and co-catalyst combinations, and additives, including a reaction inhibitor, plasticizer, delayed reaction catalyst and surfactant. | ||||||
| 99 | Polyisocyanurate foam and process therefor | US113436 | 1980-01-18 | US4311801A | 1982-01-19 | Michael J. Skowronski; Alberto DeLeon |
| 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. | ||||||
| 100 | Storage-stable prepolymers sprayable from a pressure vessel | US24828 | 1979-03-28 | US4258140A | 1981-03-24 | Heinrich Horacek; Robert Gehm; Otto Volkert; Sarbananda Chakrabarti; Mathias Pauls; Peter Weyland |
| A process for the manufacture of dimensionally stable polyurethane foams by releasing, and curing by interaction with the atmosphere, a mixture, which is under pressure, of prepolymers, containing isocyanate groups, and blowing agents, with or without assistants and additives, wherein the prepolymers, containing isocyanate groups, are obtained by reaction of organic polyisocyanates with difunctional to octafunctional polyester-polyols and/or polyether-polyols, containing chemically bonded tertiary amino groups in the polymer chain, or, preferably, with mixtures of such polyester-polyols and/or polyether-polyols and nitrogen-free polyester-polyols and/or polyether-polyols. | ||||||
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