With Non -c-x-c- Containing Reactant Patents (Class 521/176)
-
Patent number: 4255527Abstract: A process is disclosed for a polymeric foam such as a polyurethane foam prepared from a reaction mixture comprising an organic polyisocyanate compound and a compound having more than one active hydrogen, wherein the blowing agent comprises a mixture of ethanol and dibutylphthalate. The molar ratio of ethanol to dibutylphthalate is preferably in the range of from about 1.5 to about 4.Type: GrantFiled: July 19, 1979Date of Patent: March 10, 1981Assignee: George F. Thagard, Jr.Inventor: Santanu Roy
-
Patent number: 4248811Abstract: Equipment and formulations for the filling of ordinary pneumatic tires with a polyurethane foam, whereby all types, sizes and pressure ratings may be accurately filled, matching the ride and handling characteristics and load-bearing properties of air-filled tires and providing longer wear for the tires while at the same time providing puncture and blow-out proof tires.Type: GrantFiled: December 5, 1977Date of Patent: February 3, 1981Inventors: Earl N. Doyle, Rene Trevino, Richard S. Hicks
-
Patent number: 4243760Abstract: 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 polyether triol containing an internal mixed propylene oxide-ethylene oxide segment comprising 2-35% ethylene oxide by weight and 65-98% by weight of propylene oxide and an ethylene oxide cap such that said polyol has a primary hydroxyl content greater than 50% and preferably greater than 90%, and a chain-extending agent. Also covers the method of making said elastomer.Type: GrantFiled: May 23, 1979Date of Patent: January 6, 1981Assignee: Texaco Development CorporationInventors: Kenneth G. McDaniel, Doris M. Rice, Michael Cuscurida
-
Patent number: 4220728Abstract: The reaction of isocyanates with substances containing isocyanate groups or active hydrogen groups, such as hydroxyl groups, amino groups and the like, are initiated by sulfonium zwitterions such as the ar-cyclic sulfonium areneoxides. Accordingly, partially trimerized isocyanates, polyurethanes and other useful materials can be made.Type: GrantFiled: March 27, 1978Date of Patent: September 2, 1980Assignee: The Dow Chemical CompanyInventors: Jiri Kresta, Chen S. Shen
-
Patent number: 4210728Abstract: A reactive polyol composition useful in the preparation of high resilient polyurethane foams comprising a polyol and from 0.5% by weight to 5.0% by weight of a reactive diamine represented by the following formula: ##STR1## wherein R is H or alkyl of 1 to 4 carbon atoms and A and A' are NH.sub.2 or H with the provisos that in each ring either A or A' is NH.sub.2, not both and when A or A' is NH.sub.2 then the R attached to that carbon atom is H.Type: GrantFiled: January 3, 1978Date of Patent: July 1, 1980Assignee: BASF Wyandotte CorporationInventors: John T. Patton, Jr., Robert L. McBrayer
-
Patent number: 4209593Abstract: Energy absorbing polyurethane foam is made by reaction of an aromatic polyisocyanate with a polyether triol having dissolved therein a monofunctional bulky modifying ingredient, such as 2-naphthol.Type: GrantFiled: November 15, 1978Date of Patent: June 24, 1980Assignee: Uniroyal Ltd.Inventor: Som N. Khanna
-
Patent number: 4205136Abstract: A process for producing a rigid polyurethane foam having excellent flame retardance and low-smoke development is disclosed. When the rigid polyurethane foam is produced by reacting a polyhydroxyl compound with an organic polyisocyanate in the presence of a blowing agent, a surfactant, a catalyst and other additives, 3-methylpentane-1,3,5-triol is used as a part of the polyhydroxyl compound.Type: GrantFiled: February 21, 1979Date of Patent: May 27, 1980Assignee: Bridgestone Tire Company LimitedInventors: Takashi Ohashi, Minoru Kojima, Masako Yoshida, Toru Okuyama, Ryozo Sakata
-
Patent number: 4190712Abstract: An impact energy-absorbing, low density urethane foam for use in automobile bumpers has good moldability and is relatively temperature insensitive, i.e. gives approximately the same physical performance over a wide range of temperatures. This foam is characterized by its good multiple impact performance and low compression set values. The foam is water blown in a closed mold from a quasi-prepolymer system. The molded density is preferably in the range of 5 to 10 PCF.The foam formulation is based on a polymer polyol of a poly (oxypropylene/ethylene) triol reacted with a styrene/acrylonitrile monomer mixture which triol thus modified is reacted with (1) a roughly 1/5 to 1.5/1 weight amount of a hydroxy terminated polybutadiene homopolymer based on polymer polyol, (2) a 50 to 150 equivalent weight polyol crosslinker of 2 to 6 functionality, (3) a MDI glycol or triol quasi-prepolymer, and (4) some water.Type: GrantFiled: August 25, 1978Date of Patent: February 26, 1980Assignee: McCord CorporationInventor: Kirby E. L. Flanagan
-
Patent number: 4163087Abstract: Method for production of new, thermal and chemical resistant polyurethane plastics, particularly in the form of foams, these foams being obtained from the reaction of di- or poly- isocyanates with polyols, said polyols having the formula 1 or 2 as herein described, Ar in the said formulas representing a benzene, naphthalene or anthracene ring, which may be singly or multiply substituted with a halogen atom, alkyl radical, aryl radical or allyl radical, Z representing the oxygen atom, a group SO.sub.2 or a divalent radical --CRR.sub.1 -- where R and R.sub.1 represent a hydrogen atom or an alkyl radical, m and r represent 0 or 1, and n and p represent an integer 1-10, or their mixtures with other low-viscosity polyols or with a compound having formula 3 as herein described in which R.sub.2 represents a simple or branched alkyl or aryl radical which can be substituted by a lower alkyl or aryl radical or by halogen atoms added in a quantity of 0.Type: GrantFiled: October 19, 1976Date of Patent: July 31, 1979Assignee: Politechnika WarszawskaInventors: Zbigniew Brzozowski, Jedrzej Kielkiewicz, Gabriel Rokieki, Andrzej Kaminski, Danuta Chomicz, Boguskaw Goraj
-
Patent number: 4152497Abstract: Flame retarded polyurethane foams are prepared from a reaction mixture comprising as the flame retardant additive a compound containing 2,2,2-trichloroethyl group.Type: GrantFiled: March 27, 1978Date of Patent: May 1, 1979Assignee: Pennwalt CorporationInventors: Jeffrey D. Miano, Stanley R. Sandler
-
Patent number: 4137200Abstract: The invention disclosed is for new improved hydrophilic crosslinked polyurethane foams prepared by reacting a blend of a monomeric polyol and polyoxyalkylene glycol (the --OH groups of said blend being capped with a polyisocyanate) with large amounts of an aqueous reactant. The resultant foams may be characterized with a broad spectrum of improved properties including hydrolytic stability and tensile strength.Type: GrantFiled: June 10, 1977Date of Patent: January 30, 1979Assignee: W. R. Grace & Co.Inventors: Louis L. Wood, Kurt C. Frisch
-
Patent number: 4134610Abstract: A process is provided for producing semi-rigid polyurethane foams having exceptional shock-absorbing properties, even after repeated compression, prepared by the reaction of a polyisocyanate; a polyether polyol having a molecular weight within the range from about 2,000 to about 10,000; from about 1 to about 5% by weight of water per part by weight of polyether polyol; from about 1 to about 6% by weight of urea and/or thiourea per part by weight of polyether polyol; and a cross-linking compound having at least three active hydrogen atoms per molecule that are reactive with isocyanate groups and having a molecular weight below about 1000 in an amount from about 5 to about 25% by weight per part by weight of polyether polyol; the amount of polyisocyanate being selected to give an isocyanate index within the range from about 0.7 to about 1.4.Type: GrantFiled: December 27, 1976Date of Patent: January 16, 1979Assignee: Berol Kemi ABInventor: Frank W. Lindewall
-
Patent number: 4129697Abstract: The invention relates to thermoformable polyisocyanurate foams which are produced by reacting a polymethylene polyphenyl polyisocyanate having a specified diisocyanate content with polyethers which have an OH number between 28 and 112 and dihydric alcohols which have a molecular weight between 62 and 200 in the presence of isocyanate trimerization catalysts, blowing agents and other foaming agents.Type: GrantFiled: February 4, 1977Date of Patent: December 12, 1978Assignee: Bayer AktiengesellschaftInventors: Dietmar Schapel, Ulrich VON Gizycki
-
Patent number: 4125487Abstract: Polyurethane/vinyl polymer composites are prepared without the requirement of the application of an external source of heat by the admixture of a composition comprising(A) a polyether polyol having an equivalent weight of 30-2500, such as an adduct of glycerine with propylene oxide;(B) an organic polyisocyanate, such as toluene diisocyanate;(C) an ethylenically unsaturated monomer, such as styrene;(D) a catalyst for polymerizing ethylenically unsaturated monomers such as tertiary butyl perbenzoate; and(E) a catalyst for urethane formation such as cobalt naphthenate.Foams may also be prepared by adding an appropriate foaming agent.Type: GrantFiled: May 23, 1977Date of Patent: November 14, 1978Assignee: The Dow Chemical CompanyInventor: Franciszek Olstowski
-
Patent number: 4125691Abstract: A zero pressure device is composed of either a microcellular or homogeneous polyurethane made by reacting an organic polyisocyanate with at least three polyols, a monomeric polyol of 2 to 3 hydroxyls having a molecular weight less than 250, a polyether triol having a molecular weight of 4600 to 6000 and a polyether glycol having a molecular weight of 3500 to 4200. When the zero pressured device is a run-flat ring for a tire wheel assembly, it has an average density of 60 to 65 pounds per cubic foot and 30 to 42 pounds per cubic foot when it is a tire.Type: GrantFiled: April 1, 1977Date of Patent: November 14, 1978Assignee: The Goodyear Tire & Rubber CompanyInventor: John R. White
-
Patent number: 4116893Abstract: An impact energy-absorbing, relatively low density, urethane foam for use in automobile bumpers has a high content of urea linkages and is relatively temperature insensitive, i.e. gives approximately the same physical performance over a wide range of temperature. The foam is water blown in a closed mold from a quasi-prepolymer system. The pack factor is preferably in the range of 1.5 to 8 and the molded density is in the range of 5 to 20 lbs./ft..sup.3.The foam formulation is based on a polyol of a poly (oxypropylene/ethylene) triol reacted with a styrene/acrylonitrile monomer mixture which triol thus modified is reacted with (1) a 50 to 150 equivalent weight polyol cross linker of 2 to 6 functionality, (2) a MDI or TDI/glycol or triol quasi-prepolymer and (3) some water.Type: GrantFiled: December 2, 1976Date of Patent: September 26, 1978Assignee: McCord CorporationInventor: Kirby E. L. Flanagan
-
Patent number: 4107102Abstract: An elastic polyurethane foam having a density, sag factor, tensile strength and elongation at break which adapt it for use in upholstery is prepared by reacting a poly(alkylene ether) polyol having at least about 10% by weight of primary hydroxyl groups and hydrazine or a hydrazine adduct with an organic polyisocyanate which contains at least about 50% by weight of distilled tolylene diisocyanate.Type: GrantFiled: May 13, 1977Date of Patent: August 15, 1978Assignee: Bayer AktiengesellschaftInventors: Manfred Dahm, Manfred Jautelat
-
Patent number: 4102833Abstract: A quasi-prepolymer-type urethane foam for a reaction injection molding (RIM) system comprises, for the polyol side, a blend of a long-chain polyol with a short-chain diol and/or triol and an organometallic catalyst and, for the prepolymer side, a unique high--27 to 31% --free NCO quasi-prepolymer made by reacting an essentially pure MDI with a selected low molecular weight (240 to 1500) polyol having a functionality of about 2.7 to 3.3. The selected low molecular weight polyol is specifically a polyether polyol (i.e. a polyoxpropylene and/or ethylene polyol) initiated with TMP, hexanetriol, glycerine or other suitable polyol. The quasi-prepolymer, while having the expected high reactivity, surprisingly gives good rapid cures in less than 2 minutes. The resulting urethane foam is characterized by its excellent low temperature properties, especially -20% F cold flexibility and -20% F dart impact. The quasi-prepolymer storage stability can be greatly improved by the inclusion of a small amount of a liquid MDI.Type: GrantFiled: March 16, 1977Date of Patent: July 25, 1978Assignee: McCord CorporationInventor: Wayne C. Salisbury
-
Patent number: 4100354Abstract: Mixtures of glycols, monomers and oligomers are disclosed which mixtures are converted to terephthalate ester polyols. These terephthalate ester polyols are useful in the production of polyurethane foams. When these polyols are employed to produce polyurethane foams, the resulting foams exhibit excellent flame properties.Type: GrantFiled: August 5, 1976Date of Patent: July 11, 1978Assignee: Owens-Corning Fiberglass CorporationInventor: Gwilym E. Owen, Jr.
-
Patent number: 4098729Abstract: In the disclosed process of producing resilient open-celled, cross-linked polyurethane foams, by foaming polyol, a polyisocyanate, catalyst and blowing agent, the foaming is effected in the presence of a cross-linker which is a saturated or unsaturated, aliphatic, cycloaliphatic, heteroaliphatic or arylaliphatic crystalline polyhydroxy compound having at least three hydroxy groups. The crystalline polyhydroxy compound is insoluble or only slightly soluble in the polyl to be foamed and melts within the temperature range of about 60 - 160.degree. C. The amount of crystalline polyhydroxy compound to be used corresponds to about 0.1 - 5.0 hydroxy equivalent weights per 1 hydroxy equivalent weight of the polyol to be foamed. Additionally, a compound that breaks down the association of water molecules can be added.Type: GrantFiled: July 13, 1976Date of Patent: July 4, 1978Assignee: Th. Goldschmidt AGInventors: Hans-Joachim Kollmeier, Gerd Rossmy
-
Patent number: 4098732Abstract: A flame-resistant and smoke-retardant polyurethane foam is produced by reacting a polyisocyanate with a polyhydroxyl compound in the presence of an alkaline earth metal salt of a carboxylic acid and a foaming agent.Type: GrantFiled: March 2, 1976Date of Patent: July 4, 1978Assignee: Bridgestone Tire Co., Ltd.Inventors: Toshio Yukuta, Takashi Ohashi, Minoru Kojima, Masumi Saito