Phosphorus Containing Reactant Patents (Class 521/165)
  • Patent number: 7989516
    Abstract: The present invention relates to composite elements containing, as a layer, at least one thermoplastic polymer, adhering to which, as a layer, a polyisocyanate polyaddition product is attached, and a process for the production thereof.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: August 2, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Peter Haas, Catherine Lövenich, Hartwig Grammes
  • Patent number: 6833434
    Abstract: The present invention provides noctilucent polyurethane chips and a method of manufacturing the same, which provide pedestrians and drivers or bicycle riders with clear sights even at night or while raining, thus significantly reducing the danger of accidents. Also, the noctilucent polyurethane chips and the manufacturing method thereof according to the present invention serve to care for natural resources and prevent environmental pollution by recycling waste polyurethane, and by using phosphorescent substances as a raw material of pavement, the noctilucent polyurethane chips having aesthetic view and excellent functionality are provided.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: December 21, 2004
    Assignee: Samki Entech Co., Ltd.
    Inventor: Sung Soon Kang
  • Patent number: 6380273
    Abstract: The invention relates to a process for the production of flame-resistant flexible polyurethane foams having a low susceptibility to core discoloration, which comprises using hydroxyalkyl phosphonates as halogen-free flame retardants and as core discoloration inhibitors. The invention furthermore relates to the use of hydroxyalkyl phosphonates as halogen-free flame retardants for the production of flame-resistant flexible polyurethane foams having a low susceptibility to core discoloration. Finally the invention also relates to a flame resistant flexible polyurethane foam having a low susceptibility to core discoloration which comprises hydroxyalkyl phosphonates as halogen-free flame retardants and as core discoloration inhibitor.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 30, 2002
    Assignee: Clariant GmbH
    Inventors: Christian Eilbracht, Martin Sicken
  • Patent number: 5981612
    Abstract: The flameproofed, rigid, isocyanate-based foams, in particular rigid polyurethane and polyisocyanurate foams, are produced by reactinga) organic and/or modified organic polyisocyanates withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence ofd) blowing agents,e) catalysts,f) flameproofing agents, and, if desired,g) further auxiliaries and/or additives,wherein the flameproofing agent is a combination of at least one liquid flameproofing agent which is reactive toward isocyanates and at least one solid flameproofing agent.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Keppeler, Werner Hinz, Michael Reichelt
  • Patent number: 5616628
    Abstract: Polyurethanes and/or polyurethane ureas which are optionally cellular are produced by the process of the present invention. This process consists of reacting at least one polyisocyanate with a specific reaction mixture. This reaction mixture containsA) non-basic compounds having a molecular weight of 62 to 10,000 and containing at least two hydroxyl groups;andB) at least one component selected from:B)1) basic polyhydroxyl compoundsandB)2) acids or the salts thereof;andC) at least one component selected from:C)1) fatty acidsandC)2) the salts of the fatty acids.The reaction occurs at temperatures of from 0.degree. to 150.degree. C., and component A) is used as an at least 50 wt. % aqueous solution.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: April 1, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Hanns-Peter Muller, Manfred Kapps
  • Patent number: 5565274
    Abstract: Horizontally hinged covers for use in ceiling/floors are provided which are highly fire resistant and which in the event of fire automatically close. The door preferably utilizes a multilayer construction comprising an intumescent lower (inner) layer, an intermediate structural layer and a top (outer) layer of a cementitious material. The horizontally hinged door utilizes an automatic closing system in the event of fire comprising a fusible link which activates a pressurized gas source to close the door and which pressurized gas source is automatically purged when the door is closed to prevent explosion of the pressurized gas source. The fusible link also actuates (opens) a hydraulic valve to allow the flow of hydraulic fluid from a pneumatic/hydraulic housing which is used with a movable rod to open and close the door.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: October 15, 1996
    Assignee: The Bilco Company
    Inventors: Jerome F. Perrone, Jr., Duane W. Hipp
  • Patent number: 5496865
    Abstract: The pourable porous carrier material is produced from at least one thermoplastic basic polymer with additives incorporated in the porous structure.First suitable foaming agents are added to the basic polymer, the mass is melted, mixed before and/or after melting. The mixture is then preferably extruded and cooled to form a pourable porous carrier material.At least one additive is added to the porous carrier material and mixed with this at a temperature (T.sub.M) below the melting point of the basic polymer but above the melting point of the additive.The porous carrier material has preferably ellipsoid pores which are brought into their longitudinal form during extrusion.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: March 5, 1996
    Assignee: Brugg Kabel AG
    Inventors: Ulrich Heese, Renato Salvel, Wolfgang W. Neumann
  • Patent number: 5173515
    Abstract: New particularly effective fire retardent elements based on foams and expandable graphite are characterized in that they additionally contain one or more components from the group consisting of phosphate-containing polyols, borates and amine salts.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: December 22, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Dietmar Schapel
  • Patent number: 5043360
    Abstract: Substantially water blown flexible polyurethane foams, based on methylene diphenyl isocyanates, having a density ranging from 15-45 kg/m.sup.3. Such foams may be obtained through a process substantially avoiding halocarbon blowing agents, which comprises reacting methylene diphenyl isocyanates with water and one or more isocyanate-reactive compounds selected from polyols and polyamines with a functionality of 2-4 and an average equivalent weight ranging from 750-5000, while the isocyanate index ranges from 10 to 60, and weight ratio of the isocyanate-reactive compound(s) to water is less than 20.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: August 27, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: Tu Pham, Louis Muller
  • Patent number: 4910231
    Abstract: Substantially water blown flexible polyurethane foams, based on methylene diphenyl isocyanates, having a density ranging from 15-45 kg/m.sup.3.Such foams may be obtained through a process substantially avoiding halocarbon blowing agents, which comprises reacting methylene diphenyl isocyanates with water and one or more isocyanate-reactive compounds selected from polyols and polyamines with a functionality of 2-4 and an average equivalent weight ranging from 750-5000, while the isocyanate index ranges from 10 to 60, and weight ratio of the isocyanate-reactive compound(s) to water is less than 20.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: March 20, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Tu Pham, Louis Muller
  • Patent number: 4831062
    Abstract: New intumescent materials can be obtained by reacting polyisocyanates with phosphorus-containing condensation products containing at least two hydroxyl groups, and boron oxides and/or dehydration products of boric acid. They may be used for the production of coatings and building elements.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: May 16, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf von Bonin
  • Patent number: 4740527
    Abstract: A porous or non-porous intumescent mass comprising one or more carbonization auxiliaries, one or more fillers and optionally one or more other auxiliary agents, produced by the reaction of a polyisocyanate with an isocyanate reactive compound, optionally containing phosphorus or boron, in the presence of polyepoxide. The intumescent mass according to the invention having good fire characteristics and can be used to produce structural elements for fire resistance purposes, fire barriers, textile coatings, linings, laminates and pipe insulators.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: April 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf von Bonin
  • Patent number: 4670483
    Abstract: This invention relates to flame retarding compositions comprising flame retardants selected from pentate salts and nitrogen-containing phosphates wherein one or both are encapsulated in a material to reduce contacts between the flame retardants during processing and to thus reduce or eliminate pre-reaction between the two flame retardants, which pre-reaction, normally leads to degradation of flameproofing properties of the compositions. The invention is also directed to flame retardant polyurethane compositions containing a polyurethane resin and both of the flame retardants. As between the flame retardants, amount of the phosphate is about 10-99% whereas amount of the pentate salt is about 90-1%, on weight basis. In the polyurethane compositions, combined weight of the two flame retardants is about 10-60%, based on the weight of the polyurethane resin and the two flame retardants.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: June 2, 1987
    Assignee: The BF Goodrich Company
    Inventors: Dale R. Hall, Robert L. Jackson, Charles V. Purks
  • Patent number: 4607063
    Abstract: The invention is phosphono-s-triazines corresponding to the formula ##STR1## wherein: X is separately in each occurrence chlorine, bromine, haloalkyl or alkyl;Y is separately in each occurrence hydrogen, chlorine or bromine;R is separately in each occurrence hydrogen, hydrocarbyl, CH.sub.2 Y, CH.sub.2 OH or CH.sub.2 OC(R.sup.1).sub.3 wherein R.sup.1 is alkyl;a is an integer from 0 to 2 inclusive; andb is an integer from 1 to 3 inclusive, with the proviso that the sum of a and b equal 3, and with the further proviso that at least one R is CH.sub.2 OH or CH.sub.2 OC(R.sup.1).sub.3.
    Type: Grant
    Filed: August 9, 1985
    Date of Patent: August 19, 1986
    Assignee: The Dow Chemical Company
    Inventors: Chester E. Pawloski, Sally P. Ginter
  • Patent number: 4542170
    Abstract: This invention relates to flame retarding compositions comprising a pentate salt selected from melammonium pentate and the pentate salt of ammelide, and a nitrogen-containing phosphate selected from amine phosphates, ammonium phosphates, and ammonium polyphosphates in amount of 25 to 95 volume % phosphate to 75 to 5 volume % pentate salt which produce unexpected results in thermoplastic polyurethane compositions in terms of oxygen index, and UL-94 rating. This invention also pertains to polyurethane compositions containing a thermoplastic polyurethane resin and a flame retarding combination of a pentate salt and a phosphate, defined above, in amount of 10 to 35 volume % of the two flame retarding components based on the total volume of the resin plus the two flame retarding componets. An aryl phosphate can also be included to enhance the flame retarding properties of thermoplastic polyurethanes. Such polyurethane compositions are intumescent, drip retardant, and are halogen-free.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: September 17, 1985
    Assignee: The B. F. Goodrich Company
    Inventors: Dale R. Hall, Robert L. Jackson
  • Patent number: 4529742
    Abstract: The present invention relates to optionally foamed intumescent masses obtained by reacting(1) polyisocyanates with a mixture containing(2) polyethers having an average OH number of from about 150 to 500 and obtained by the chemical addition of alkylene oxides having an ethylene oxide content of from about 50 to 100% by weight to low molecular weight starters, and/or(3) hydroxyl polyesters having an OH number of from about 100 to 350 obtained by the reaction of aliphatic, cycloaliphatic, araliphatic and aromatic polycarboxylic acids having 2 to 10 carbon atoms with at least two polyols selected from two different groups of the three following groups:(a) hydroxyl compounds with a molecular weight of up to about 200 having more than three OH groups,(b) hydroxyl groups with a molecular weight of up to about 150 having three OH groups, and(c) hydroxyl compounds with a molecular weight of up to about 80 having two OH groups, wherein one of the polyols belongs to group (a), and(4) a phosphate of the melamine phospha
    Type: Grant
    Filed: February 9, 1984
    Date of Patent: July 16, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Friedrich Jonas
  • Patent number: 4505849
    Abstract: The disclosure relates to a storable polyol pre-mixture for making flame-retardant polyurethane foam plastics consisting of a mixture of a polyester polyol or polyether polyol and an ammonium polyphosphate as a flame-retardant agent. The pre-mixture contains more particularly an ammonium polyphosphate which corresponds to the general formula (I)H.sub.(n-m)+2 (NH.sub.4).sub.m P.sub.n O.sub.3n+1 (I)in which n stands for an integral average value of 100 to 1000, m stands for a whole number of up to n+2 and m/n stands for a value of about 1, has an acid number of 0.01 to about 5 mg KOH/g, contains 0.01 to 0.5 mass % water and 0.5 to about 15 mass % water-soluble fractions in water at 25.degree. C.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: March 19, 1985
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Staendeke, Franz-Josef Dany, Joachim Kandler
  • Patent number: 4407981
    Abstract: A composition comprises polyurethane, a two-component flame retardant system consisting of an additive first flame retardant containing organophosphorus, and a second flame retardant containing organochlorine or organobromine.The composition of the invention may be employed for polyurethane foams, especially rigid foams.Diminished combustibility for rigid foam is measured by a flame-spread index less than 75 and a smoke developed index less than 450 when subjected to ASTM Test E-84, Surface Burning Characteristics of Building Materials.Dimethyl methylphosphonate is a representative additive organophosphorus first flame retardant. Trichloroisopropyl alcohol is a representative second flame retardant containing organochlorine.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: October 4, 1983
    Assignee: Stauffer Chemical Company
    Inventor: Alan M. Aaronson
  • Patent number: 4380593
    Abstract: Optionally-foamed intumescent compositions obtained by reacting(a) polyisocyanates with(b) phosphorus-containing condensation products having at least 2 hydroxyl groups and obtained by condensing primary or secondary monoamines and/or polyamines optionally containing OH-groups, carbonyl compounds and dialkyl phosphites, optionally followed by alkoxylation, and(c) more than bifunctional polyethers having an average OH-number of from 150 to 500 which have been obtained by the addition of alkylene oxides, of which from 50 to 100% by weight consist of ethylene oxide, with low molecular weight starters, and(d) cyanuric acid and/or cyanuric acid derivatives, and(e) optionally water and(f) optionally other organic compounds containing isocyanate-reactive hydrogen atoms,are used, for example, as cavity-filling, gap-sealing or coating materials.
    Type: Grant
    Filed: February 24, 1982
    Date of Patent: April 19, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wulf von Bonin, Gottfried Zaby
  • Patent number: 4369258
    Abstract: Polyurethane foams having improved physical properties are prepared by reacting a polyisocyanate and polyol in the presence of a melamine polyol which contains no polyether linkages and a foaming agent.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: January 18, 1983
    Assignee: American Cyanamid Company
    Inventor: Douglas L. Johnson
  • Patent number: 4367295
    Abstract: The present invention relates to intumescent compositions, which may be foamed, and which are obtained by reacting:(1) polyisocyanates with(2) phosphorus-containing condensation products having at least one hydroxyl group obtainable by condensing (i) primary or secondary aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic monoamines and/or polyamines, which mono- or polyamines may contain OH-groups; (ii) carbonyl compounds; and, (iii) dialkyl phosphites, and(3) polyesters containing hydroxyl groups and having OH-numbers of from 140 to 300, obtained by reacting polycarboxylic acids containing from 2 to 10 carbon atoms with at least 2 polyols selected from two different groups of the following three:(a) hydroxyl compounds containing more than three OH groups and having molecular weights of up to 200,(b) hydroxyl compounds containing three OH groups and having molecular weights of up to 150,(c) hydroxyl compounds containing two OH-groups and having molecular weights of up to 80, with the proviso tha
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: January 4, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf von Bonin
  • Patent number: 4342682
    Abstract: Thermoplastic polyurethane elastomer compositions comprising a polyurethane elastomer, a pentate salt of an amino-s-triazine, and optionally a polyol are flame retardant and intumescent and may be compounded to be self-extinguishing.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: August 3, 1982
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: Yuval Halpern, Donald D. Hall, Jr.
  • Patent number: 4339357
    Abstract: A compound of the formula ##STR1## wherein a, b, c, d, and n are integers; a is from 1 to 3; b and c are independently selected from the group consisting of 0 and 1; d and n are independently selected from the group consisting of 1 and 2; R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and haloalkyl of 1 to 4 carbon atoms and 1 to 2 halogen atoms; and R.sup.2 and R.sup.3 are independently selected from the group consisting of haloalkyl containing 1 to about 4 carbon atoms and 1 to about 2 halogen atoms selected from the group consisting of chlorine, bromine, and mixtures thereof.The use of this compound with specified amounts of a certain methylated methylol melamine and water allows one to produce an intumescent composition which is substantially superior to prior art intumescent compositions.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: July 13, 1982
    Assignee: Great Lakes Chemical Corporation
    Inventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
  • Patent number: 4338412
    Abstract: The present invention is directed to intumescent compositions, which may be foamed, obtained by reacting:(1) polyisocyanates,(2) phosphorus-containing condensation products having at least one hydroxyl group and obtained by condensing (i) primary or secondary aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic monoamines and/or polyamines, which mono- and polyamines may contain OH groups, (ii) carbonyl compounds, and (iii) dialkyl phosphites,(3) aromatic hydroxy carboxylic acids or salts thereof, and(4) optionally, water and/or additional organic compounds containing isocyanate-reactive hydrogen atoms.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: July 6, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventor: Wulf von Bonin
  • Patent number: 4328321
    Abstract: The present invention relates to a process for the preparation of polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting:(a) polyisocyanate,(b) a compound having a molecular weight of from 400 to 10,000 containing at least two isocyanate-reactive hydrogen atoms and(c) a dialkoxy-phosphonyl-N-alkyl-formic acid amide of the formula: ##STR1## wherein m represents an integer of from 1 to 3,n represents an integer of from 0 to 8,X represents halogen, hydrogen, C.sub.1 to C.sub.6 alkyl, --OR, or ##STR2## R represents C.sub.1 to C.sub.6 alkyl, R.sub.1 represents hydrogen, C.sub.1 to C.sub.10 alkyl, C.sub.1 to C.sub.10 alkylene, C.sub.6 to C.sub.10 aryl or C.sub.6 to C.sub.10 arylene, andR.sub.2 and R.sub.3, which may be the same or different, represent C.sub.1 to C.sub.10 alkyl in the presence of water and/or blowing agent.The present invention also relates to dialkoxy-phosphonyl-N-formic acid amides.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: May 4, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Haas, Heinz Muller, Peter Seifert, Kuno Wagner, Kurt Findeisen, Klaus Konig
  • Patent number: 4202779
    Abstract: Bis(2-hydroxyalkyl) N,N-di(lower-alkyl)aminomethyl-phosphonates are described. These phosphorus-containing polyols can be incorporated into polyurethane foams to render the latter fire retardant. They have the advantage over closely related phosphorus-containing polyols that they are autocatalytic in the polyurethane foam forming reaction and that they can be mixed with the polyol component of the polyurethane foam forming composition to give a mixture (premix) which can be maintained in storage for prolonged periods without showing any signs of deterioration.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: May 13, 1980
    Assignee: The Upjohn Company
    Inventors: Curtis P. Smith, Henri Ulrich
  • Patent number: 4198490
    Abstract: Polyols produced by the reaction of an N-.alpha.-alkylol compound and at least one hydroxyl-containing compound are disclosed. These polyols are particularly suitable for use in the production of polyurethane foams.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: April 15, 1980
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Gwilym E. Owen, Jr.
  • Patent number: 4192927
    Abstract: The present invention relates to new polyols modified by phosphonoformamidine groups, to a process for the preparation thereof and the use thereof as starting component for the preparation of preferably foamed polyurethane plastics.The process involves (A) reacting diisocyanatocarbodiimides corresponding to the following general formula:OCN--R.sup.2 --N.dbd.C.dbd.N).sub.m R.sup.2 --NCOat a temperature of from about 25 to 130.degree. C., optionally in the presence of an inert solvent, with polyhydroxyl compounds corresponding to the following general formula:A--OH).sub.nin an OH/NCO-ratio of from 1.2:1 to 30:1 to form a polyhydroxyl compound containing carbodiimide groups and (B) completely or partially reacting the carbodiimide groups remaining in the product of step (A) by means of a basic catalyst at a temperature of from 25 to 150.degree. C.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: March 11, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Schafer, Kuno Wagner, Kurt Findeisen
  • Patent number: 4145510
    Abstract: Hydantoins of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 8 carbon atoms, R.sub.2 is ##STR2## R.sub.3 is alkyl of 1 to 8 carbon atoms, and X is a straight or branched chain alkylene of 1 to 4 carbon atoms or a straight or branched chain alkylene of 3 to 6 carbon atoms containing an internal carbamido group; or R.sub.1 and R.sub.2 together are Y where Y is a straight or branched chain alkylene of 4 to 8 carbon atoms having a pendant ##STR3## ARE PREPARED BY REACTING FIRST .alpha.,.beta.-UNSATURATED ALDEHYDES OR KETONES WITH ALKYL PHOSPHITES TO FORM A PHOSPHONATE ALDEHYDE OR KETONE FOLLOWED BY A CLASSICAL Bucherer hydantoin synthesis.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: March 20, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Luther A. R. Hall, David A. Gordon
  • Patent number: 4140660
    Abstract: Flame-retarding compounds are disclosed which are of the formula ##STR1## wherein X is a phosphorus derivative.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: February 20, 1979
    Assignee: Stamicarbon, B.V.
    Inventors: Marinus J. A. M. Den Otter, Albert A. Van Geenen, Anne Te Mijenhuis
  • Patent number: 4123599
    Abstract: This invention relates to a process for the manufacture of foams based on phenolic resins, wherein phenolic resins are reacted, in the presence of metal powders and/or metal oxide powders, with organic diisocyanates and/or polyisocyanates.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: October 31, 1978
    Assignees: Chemie-Anlagenbau Bischofsheim GmbH, Reuter Technologie GmbH, Metallgesellschaft
    Inventors: Karl-Heinz Hilterhaus, Franz G. Reuter
  • Patent number: 4115298
    Abstract: The instant invention relates to a new process for splitting up polyurethane waste into activated polyhydroxyl compounds which may be reused for the production of polyurethane plastics. The process broadly comprises reacting the polyurethane waste with lactams or equilibrium associates of lactams and active hydrogen containing compounds at temperatures of from 150.degree. to 250.degree. C. If desired, the process may be conducted under elevated pressure.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: September 19, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gottfried Schneider, Kuno Wagner, Heinz Wolfgang Patzelt
  • Patent number: 4112014
    Abstract: Bis(2-hydroxyalkyl) N,N-di(lower-alkyl)aminomethylphosphonates are described. These phosphorus-containing polyols can be incorporated into polyurethane foams to render the latter fire retardant. They have the advantage over closely related phosphorus-containing polyols that they are autocatalytic in the polyurethane foam forming reaction and that they can be mixed with the polyol component of the polyurethane foam forming composition to give a mixture (premix) which can be maintained in storage for prolonged periods without showing any signs of deterioration.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: September 5, 1978
    Assignee: The Upjohn Company
    Inventors: Curtis P. Smith, Henri Ulrich
  • Patent number: 4107152
    Abstract: This invention relates to novel flame retarding agents and processes in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: A and L, which are identical or different, represent optionally branched C.sub.1 -C.sub.17 -alkyl groups or -OR groups wherein R represents an optionally branched C.sub.1 -C.sub.8 -alkyl group, andX represents hydrogen, halogen, an optionally branched C.sub.1 -C.sub.8 alkyl group, a C.sub.6 -C.sub.12 aryl or aralkyl group, NH.sub.2, CF.sub.3, CN, COOR', SO.sub.3 R', ##STR2## wherein: R' represents hydrogen or an optionally branched alkyl or cycloalkyl group having 1-10 C atoms andR" represents an optionally branched alkyl or cycloalkyl group having 1-10 C atoms.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: August 15, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Hubner, Johannes Blahak, Hans-Joachim Meiners
  • Patent number: 4107103
    Abstract: This invention relates to novel halogen-free flame retarding agents and a process in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: R.sub.1 represents C.sub.1 -C.sub.5 alkylene groups which may be branched,R.sub.2 represents C.sub.1 -C.sub.3 alkyl groups which may be branched or R.sub.1 OH andR.sub.3 represents C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -dialkylamino, C.sub.1 -C.sub.4 -oxyalkyl, C.sub.1 -C.sub.4 -thioslkyl, C.sub.6 -C.sub.14 -aryl or C.sub.7 -C.sub.15 -aralkyl groups or ##STR2## and A and L may be identical or different and represent C.sub.1 -C.sub.10 -alkyl groups, which may be branched, benzyl groups or OR groups, whereinR represents an alkyl group, with 1-8 C atoms which may be branched, or a benzyl group.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: August 15, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Hubner, Johannes Blahak, Hans-Joachim Meiners
  • Patent number: 4102830
    Abstract: The novel diol-phosphonates of the formula: ##STR1## in which R.sub.1 is alkyl with 1 to 4 carbon atoms, R.sub.2 is hydrogen, methyl, or ethyl, and A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, or ##STR2## are useful as flameproofing additives in polyurethane foams.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: July 25, 1978
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Georges L. Sturtz, Serge L. Lecolier, Jean-Claude Clement, Jean Marie Biehler