Polycarbamic Patents (Class 560/158)
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Patent number: 5034495Abstract: A hardening agent for epoxy prepared by reacting A) a hydroxy containing ketimino compound with B) a diisocyanate compound with one isocyanate group blocked, reacting the resulting adduct with C) a polyether amine and hydrolysis of the reaction product, reactants A), B) and C) being in approximately stoichiometric amounts resulting in flexible hardened products of good resistance to chemicals and aging.Type: GrantFiled: June 7, 1990Date of Patent: July 23, 1991Assignee: Rutgerswerke AGInventors: Achim Hansen, Alfred Mathes, Jurgen Zehrfeld
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Patent number: 5019636Abstract: A vinyl ether oligomer especially useful for coatings is prepared by reacting an hydroxyl-terminated polyester, a diisocyanate, and a hydroxy monovinyl ether having formulas as defined herein.Type: GrantFiled: May 10, 1989Date of Patent: May 28, 1991Assignee: Allied-Signal Inc.Inventors: Stephen C. Lapin, James R. Snyder
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Patent number: 5013777Abstract: The present invention comprises novel single-functional and mixtures of multi-functional oligomeric performance additive compounds having one or more components of Structure A ##STR1## (The definitions of R, Z1, Z2, Z3, A1, A2, A3 and y are given in the Summary Section), their uses and polymeric compounds and compositions containing them which have enhanced oxidative stabilities, enhanced ultraviolet (UV) and light stabilities and/or enhanced flame retardance. An example is the bis sulfonic acid bispotassium salt reaction product from an oligomeric caprolactone diol (TONE.RTM. 260), 2-sulfobenzoic acid anhydride and potassium carbonate, and use of this product, at levels up to about 3.0%, in a general purpose bisphenol A polycarbonate resin, to enhance the fire resistance or flame retardance of the polycarbonate resin.Type: GrantFiled: December 24, 1987Date of Patent: May 7, 1991Assignee: Atochem North America, Inc.Inventors: Ronald E. MacLeay, Jose Sanchez, Daryl L. Stein
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Patent number: 5008435Abstract: Process for producing urethanes, by reacting an organic hydroxyl group containing compound and carbon monoxide, either (i) with an organic nitro group containing compound, e.g. nitrobenzene, or (ii) with a primary amine, e.g. aniline, and oxygen, the reacting in both cases being carried out in the presence of a non-noble metal catalyst system comprising a copper catalyst, preferably mixed with a promoter such as a nitrogen or phosphorous containing organic compound for the (i) nitro compound reaction, or an alkali salt for the (ii) amine reaction, e.g. at 200-8000 psig and 100.degree.-300.degree. C., using 0.05-0.4 mole copper catalyst and 0.01-10 moles promoter per mole (i) nitro compound or (ii) amine, and 2-500 moles carbon monoxide, and (in the case of the (ii) amine) 0.5-5 moles oxygen, per mole of the (i) nitro compound or (ii) amine.Type: GrantFiled: November 22, 1988Date of Patent: April 16, 1991Assignee: Industrial Technology Research InstituteInventors: Kuo-Liang Loh, Puh Shieh, Y. S. Chao, Tsu-Kung Chuang
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Patent number: 4980500Abstract: The present invention is directed to a process for the preparation of urethane-modified biuret polyisocyanates by the reaction of(a) 1,6-diisocyanatohexane with subequivalent quantities of(b) biuretizing agents based on water and/or organic compounds which react with isocyanate groups to form biuret groups,to form biurets followed by removal of the unreacted, excess 1,6-diisocyanatohexane and any volatile components present, characterized in that at any stage before removal of the excess 1,6-diisocyanate,(c) at least one diol containing ester groups and having an average molecular weight of about 350 to 950 is added to the reaction mixture in a quantity of about 1 to 50% by weight, based on the weight of the 1,6-diisocyanatohexane, the diol reacting with part of the isocyanate groups present to form urethane groups.The invention is also directed to the urethane-modified biuret polyisocyanates obtained by this process and their use as polyisocyanate components in two-component polyurethane lacquers.Type: GrantFiled: December 7, 1988Date of Patent: December 25, 1990Assignee: Bayer AktiengesellschaftInventors: Josef Pedain, Manfred Schonfelder, Manfred Schmidt
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Patent number: 4978759Abstract: The process described makes it possible to obtain optically pure 4-amino-3-hydroxycarboxylic acids by means of a series of stereoselective steps. The starting material is an alpha-amino acid in the L or D configuration, with which Meldrum's acid is reacted. The resulting pyrrolone derivative is reduced prior to opening of the pyrrolidine ring. The invention also relates to the new products obtained by the said process and to the pyrrolone derivatives obtained as intermediates.Type: GrantFiled: July 2, 1986Date of Patent: December 18, 1990Assignee: Sanofi, S.A. and Institut National de la Sante et de la Recherche MedicaleInventors: Patrick Jouin, Dino Nisato, Bertrand Castro
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Patent number: 4978732Abstract: Coated supports with ultra-thin, single-layer or multi-layer coating of organic polymer material have been found, in which, as polymer, polyurethanes of the structure ##STR1## are used in which A is the skeleton of an aliphatic, araliphatic or aromatic diol,B is the skeleton of an aliphatic, araliphatic or aromatic diisocyanate,n assumes values from 2 to 150 andat least one of the substituents R.sup.1 to R.sup.4 represents an essentially normal-chain aliphatic radical and the others in each case denote hydrogen, the aliphatic radical having at least 4 carbon atoms and the number of carbon atoms from the terminal methyl group of the aliphatic radical via the skeleton A or B up to the urethane linkage being 6 to 40, and it being further possible for R.sup.1 and R.sup.2 jointly to form an alkylene chain and for R.sup.3 and R.sup.4 jointly to form an alkylene chain. Coated supports of this type may be produced by the Langmuir-Blodgett technique.Type: GrantFiled: August 1, 1989Date of Patent: December 18, 1990Assignee: Bayer AktiengesellschaftInventors: Rolf Wehrmann, Heinrich-Christian Schopper, Dittmar K. Nerger
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Patent number: 4975096Abstract: Long chain aliphatic hydrocarbyl amine additives which comprise a long chain aliphatic hydrocarbyl component, an amine component and an oxy-alkylene hydroxy connecting group connecting the aliphatic hydrocarbyl component and amine component are useful as deposit control additives in fuel compositions and as dispersants in lubricating oil compositions.Type: GrantFiled: September 9, 1988Date of Patent: December 4, 1990Assignee: Chevron Research CompanyInventor: Thomas F. Buckley, III
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Patent number: 4973733Abstract: Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.Type: GrantFiled: February 9, 1987Date of Patent: November 27, 1990Assignee: Texaco Inc.Inventors: Phillip B. Valkovich, Kechia J. Chou
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Patent number: 4973732Abstract: Polymers, such as polysiobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.Type: GrantFiled: February 9, 1987Date of Patent: November 27, 1990Assignee: Texaco Inc.Inventors: Phillip B. Valkovich, Kechia J. Chou
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Patent number: 4963637Abstract: The present invention is directed to novel isocyanate-terminated prepolymers of carboxylic acid grafted polyethers, salts of these prepolymers and fully reacted polymers formed therefrom. More specifically, the present invention relates to reacting an ethylenically unsaturated mono-carboxylic acid with a polyether in the presence of a free radical initiator to form a graft copolymer. Acid-containing isocyanate-terminated prepolymers can then be formed by reacting the graft copolymer with an isocyanate. Salt-containing isocyanate-terminated prepolymers are prepared through the reaction between the acid-containing prepolymer and a base. Finally, polymers are formed by curing either of these isocyanate-terminated prepolymers with an isocyanate reactive material.Type: GrantFiled: June 23, 1989Date of Patent: October 16, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Nigel Barksby
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Patent number: 4952241Abstract: The new (meth)acrylic acid derivatives containing urethane groups can be prepared by reaction of a (meth)acrylic acid ester with diisocyanates and subsequent reaction with polyols. The compounds can be used for dental materials.Type: GrantFiled: July 13, 1989Date of Patent: August 28, 1990Assignee: Bayer AktiengesellschaftInventors: Jurgen Reiners, Wolfgang Podszun, Jens Winkel, Carlhans Suling, Gerhard Klein
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Patent number: 4946473Abstract: Certain poly(olefin)-N-substituted carbamates are useful to prevent or reduce engine deposits alone or in combination with certain poly(olefin) polymers or hydrogenated forms of the polymers.Type: GrantFiled: January 19, 1990Date of Patent: August 7, 1990Assignee: Shell Oil CompanyInventor: Thomas H. Johnson
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Patent number: 4946982Abstract: Certain poly(olefin)-N-substituted carbamates are useful to prevent or reduce engine deposits alone or in combination with certain poly(olefin) polymers or hydrogenated forms of the polymers.Type: GrantFiled: March 20, 1989Date of Patent: August 7, 1990Assignee: Shell Oil CompanyInventor: Thomas H. Johnson
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Patent number: 4945117Abstract: This invention relates to liquid urethane-modified polyisocyanate compositions obtained by reaction of polyisocyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 50 to about 100% by weight diisocyanatodiphenylmethane isomers with substoichiometric quantities of polyether polyol compositions having an average hydroxyl equivalent weight of about 500 to 3000 and an average hydroxyl functionality greater than about 4, optionally followed by mixing the initially formed reaction product with urethane-free polyisocyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 40 to about 100% by weight diisocyanatodiphenylmethane isomers. This invention also relates to a process for the preparation of such polyisocyanate compositions. The invention further relates to the use of such compositions as the polyisocyanate component in the production of flexible polyurethane foams.Type: GrantFiled: May 19, 1989Date of Patent: July 31, 1990Assignee: Bayer AktiengesellschaftInventors: Peter Gansen, Klaus-Dieter Wolf, Klaus Seel
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Patent number: 4943626Abstract: Polyether active hydrogen compounds having at least two terminal active hydrogen groups on primary carbon atoms are prepared by (a) forming polyoxyalkylene molecules each having at least one active hydrogen precursor, (b) linking at least two of the polyoxyalkylene molecules, and (c) converting the active hydrogen precursor groups to active hydrogen groups on primary carbon atoms. The polyoxyalkylene molecule is formed by exposing a reaction mixture comprising at least one alkylene oxide and at least one protective initiator to conditions effective for the polymerization of the alkylene oxides. Linking is accomplished at polyether chain ends distal to the protected active hydrogen precursor groups, such that the active hydrogen precursors remain on the linked polyether chains until they are converted to active hydrogen groups.Type: GrantFiled: July 29, 1988Date of Patent: July 24, 1990Assignee: The Dow Chemical CompanyInventors: James E. McGrath, Youngtai Yoo, Robert B. Turner, Diane M. Lewis
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Patent number: 4940768Abstract: A curing agent (A) for resins (B) which can be cured by means of isocyanates, which has an amine number of 20 to 150 mg of KOH/g and an OH number of not more than 20 mg of KOH/g and which contains per molecule at least two masked isocyanate groups which are reactive under the conditions of curing, obtained by reacting(a) an amine which contains at least one .beta.-hydroxylalkyl group per molecule and has an OH number of 100 to 1,200 mg of KOH/g and an amine number of 100 to 1,200 mg of KOH/g and which, if appropriate, also contains NHCO groups, if appropriate as a mixture with another OH-functional and/or NH-functional compound, with(b) a partly masked isocyanate, if appropriate as a mixture with an at least difunctional, OH-reactive and/or NH-reactive compound.These curing agents are readily dispersible in aqueous systems, if appropriate after neutralization, and frequently increase stability in aqueous paint formulations.Type: GrantFiled: March 21, 1989Date of Patent: July 10, 1990Assignee: Hoechst AGInventors: Michael Honel, Manfred Finke, Gerd Walz, Peter Ziegler
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Patent number: 4940811Abstract: N,O-acylates, derived from N-acylated carbamic acids, of desferrioxamine B of the formula ##STR1## in which B represents a carbamoyl radical of the partial formula --CO--NH--Alk--CO--O--R.sub.a.sup.1 (II) in which R.sub.a.sup.1 represents C.sub.1 -C.sub.4 -alkyl or C.sub.2 -C.sub.4 -alkyenyl and Alk represents C.sub.1 -C.sub.7 -alkylene that is optionally substituted by hydroxy, C.sub.1 -C.sub.4 -alkanoyloxy, amino, C.sub.1 -C.sub.4 -alkoxycarbonyl, carbamoyl, phenyl, hydroxyphenyl, methoxyphenyl or by indolyl, and each of the symbols A.sup.1, A.sup.2 and A.sup.3, independently of the others, represents hydrogen, an acyl radical Ac derived from a carboxylic acid, or an above-defined carbamoyl radical of the partial formula II, form strong iron(III) and aluminium complexes in living cells.Type: GrantFiled: November 30, 1987Date of Patent: July 10, 1990Assignee: Ciba-Geigy CorporationInventor: Heinrich Peter
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Patent number: 4933485Abstract: Disclosed are alkylphenyl poly(oxyalkylene) aminocarbamates having at least one basic nitrogen and an average molecular weight of about 800 to 6,000 and wherein the alkyl group contains at least 40 carbon atoms. Also disclosed are lubricating oil compositions and concentrates containing said alkylphenyl poly(oxyalkylene) aminocarbamates.Type: GrantFiled: October 23, 1987Date of Patent: June 12, 1990Assignee: Chevron Research CompanyInventor: Thomas F. Buckley, III
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Patent number: 4921996Abstract: The present invention relates to isocyanto-acylurethanes corresponding to Formula I ##STR1## wherein R has a valency of m+n and is a hydrocarbon group,R' is a hydrocarbon group andm and n may be identical or different, and each have a value of 1 or 2.The present invention also relates to a process for preparation of these isocyanato-acylurethanes which comprises reacting isocyanato-carboxylic acid chlorides with carbamic acid esters. Finally, the present invention is directed to the use of these isocyanato-acylurethanes as intermediate products for the production of thermally cross-linkable synthetic resins or synthetic resin precursors and also as intermediate products for the preparation of cross-linking agents for synthetic resins.Type: GrantFiled: August 2, 1988Date of Patent: May 1, 1990Assignee: Bayer AktiengesellschaftInventors: Walter Schafer, Hanns P. Muller, Tillmann Hassel
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Patent number: 4904750Abstract: Dental fillings, coatings and teeth are formed of polymers and copolymers of a polyfunctional ester-urethane derivative of (meth)-acrylic acid of the formula ##STR1## in which A is a straight-chain or branched aliphatic radical which has 2 to 20 carbon atoms and optionally contains 1 to 3 oxygen bridges, an aromatic radical with 6 to 24 carbon atoms, an araliphatic radical with 7 to 26 carbon atoms or a cycloaliphatic radical with 6 to 26 carbon atoms,r denotes the number of chains starting from A and denotes a number from 2 to 6,R.sup.1 and R.sup.Type: GrantFiled: December 20, 1988Date of Patent: February 27, 1990Assignee: Bayer AktiengesellschaftInventors: Jurgen Reiners, Carlhans Suling, Walter Schafer, Hanns P. Muller, Wolfgang Podszun, Jens Winkel
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Patent number: 4883854Abstract: By reacting polyamines with ethylene carbonate, hydroxyethyl urethane diols and polyols are produced. These diols and polyols are particularly useful for the synthesis of polyurethanes by reaction with diisocyanates or polyisocyanates.Type: GrantFiled: September 30, 1988Date of Patent: November 28, 1989Assignee: Medtronic, Inc.Inventors: Arthur J. Coury, Christopher M. Hobot
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Patent number: 4881945Abstract: Disclosed is a fuel composition comprising a hydrocarbon boiling in the gasoline or diesel range and from about 30 to about 5,000 parts per million of a fuel soluble alkylphenyl poly(oxyalkylene) aminocarbamate having at least one basic nitrogen and an average molecular weight of about 800 to 6,000 and wherein the alkyl group contains at least 40 carbon atoms. The instant invention is based on the discovery that use of the unique hydrocarbyl gorup, i.e., an alkylphenyl group wherein the alkyl group contains at least 40 carbon atoms provides for improved lubricating oil compatibility.Type: GrantFiled: October 23, 1987Date of Patent: November 21, 1989Assignee: Chevron Research CompanyInventor: Thomas F. Buckley, III
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Patent number: 4879402Abstract: The new (meth)acrylic acid derivatives containing urethane groups can be prepared by reaction of a (meth)acrylic acid ester with diisocyanates and subsequent reaction with polyols. The compounds can be used for dental materials.Type: GrantFiled: July 10, 1987Date of Patent: November 7, 1989Assignee: Bayer AktiengesellschaftInventors: Jurgen Reiners, Wolfgang Podszun, Jens Winkel, Carlhans Suling, Gerhard Klein
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Patent number: 4877540Abstract: Methylolated and optionally etherified urethanes containing fluoroalkyl ligans with formaldehyde, with or witout subsequent etherification, and are in the form of their solutions or aqueous dispersions suitable for the treatment of textiles and leather.Type: GrantFiled: August 8, 1988Date of Patent: October 31, 1989Assignee: Cassella AktiengesellschaftInventors: Fritz Engelhardt, Karl Hintermeier, Manfred Muller, Norbert Munch, Hans Wagener
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Patent number: 4876379Abstract: The catalyzed oxidative alkoxycarbonylation of amines and substituted amines to form carbamates is disclosed. The process involves alkoxycarbonylation in the presence of a palladium-based catalyst using carbon monoxide, an alkanol and an oxygen-transer agent.Type: GrantFiled: November 9, 1988Date of Patent: October 24, 1989Assignee: Amoco CorporationInventor: Carl A. Udovich
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Patent number: 4874799Abstract: Aqueous alkaline developable, UV curable urethane acrylate compounds and compositions are particularly useful for making flexible, 100% solids, solvent-free solder mask coatings which are characterized by having screen-printable viscosities, rapid developability and advantageous performance characteristics.Type: GrantFiled: July 10, 1987Date of Patent: October 17, 1989Assignee: M&T Chemicals Inc.Inventors: Paul L. K. Hung, Kenneth K. S. Tseng
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Patent number: 4871828Abstract: Polyisocyanates containing only trace amounts of free aromatic diisocyanates are recovered by purifying and isolating an isocyanate condensate containing free NCO groups from an impure admixture thereof, said isocyanate condensate impure admixture having been prepared by reacting a stoichiometric excess of an aromatic di- or polyisocyanate with a reactant compound containing at least two functional groups which are reactive with NCO groups, and such purification/isolation entailing extracting unreacted excess di- or polyisocyanate from said impure admixture with an inert gas, e.g., carbon dioxide, in either the liquid or supercritical state.Type: GrantFiled: September 26, 1988Date of Patent: October 3, 1989Assignee: Rhone-Poulenc ChimieInventors: Andre Blind, Gerard Collas, Jean Robin, Ferenc Sagi
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Patent number: 4870151Abstract: Specific new polyurea-modified polyetherurethanes and their uses as breakers for water-in-oil emulsions, in particular as breakers for water-in-oil emulsions.Type: GrantFiled: September 28, 1988Date of Patent: September 26, 1989Assignee: Bayer AktiengesellschaftInventors: Thomas Scholl, Hermann Perrey, Thomas Augustin, Christian Wegner
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Patent number: 4870202Abstract: New (meth)acrylic acid derivatives of triisocyanates can be prepared by reaction of aliphatic triisocyanates with hydroxyalkyl (meth)acrylates. The new compounds can be used as monomers in dental materials.Type: GrantFiled: December 10, 1987Date of Patent: September 26, 1989Assignee: Bayer AktiengesellschaftInventors: Jurgen Reiners, Carlhans Suling, Wolfgang Podszun, Jens Winkel
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Patent number: 4870203Abstract: Prepare .alpha., .beta.-saturated geminal biscarbamates by contacting an .alpha.,.beta.-unsaturated ether with a carbamate under reaction conditions, optionally in the presence of a catalyst.Type: GrantFiled: August 21, 1986Date of Patent: September 26, 1989Assignee: The Dow Chemical CompanyInventor: Michael J. Mullins
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Patent number: 4863986Abstract: Fluorinated polyisocyanates particularly suitable for the formulation of coating paints and compositions in the electronics industry, obtained by starting from a perfluoropolyether polyol having a functionality higher than 2 and from a diisocyanate, the resulting derivative having isocyanic functions being further condensed with a polyol in order to obtain a polyisocyanate with a high degree of functionality, and containing from 1.5% to 9% by weight of --NCO groups.Type: GrantFiled: June 10, 1988Date of Patent: September 5, 1989Assignee: Montedison S.p.A.Inventors: Alberto Re, Marco De Giorgi
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Patent number: 4855486Abstract: A method is provided for quantitatively monitoring the deprotection and coupling reactions employed in the solid phase synthesis of peptides. The method entails synthesizing a peptide on a support matrix that has a first marker associated therewith. The amino acids employed in the peptide synthesis procedure have a second marker attached thereto, which can be the blocking group used for the amino acid. After the coupling or deprotection step a portion of the support matrix is processed to release first and second identifers from the first and second markers, respectively. The completeness of the coupling or deprotection step can be determined by comparing the relative amounts of the detected first and second identifiers. Novel compositions of matter are used in or produced during this method, including support matrixes having pyrolyzable markers attached thereto.Type: GrantFiled: February 19, 1988Date of Patent: August 8, 1989Inventor: Suresh M. Kalbag
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Patent number: 4851565Abstract: Catalyzed processes for the preparation of aliphatic di- and polyurethanes from aliphatic di- or polyamines, urea, and monofunctional, aliphatic alcohols are disclosed which result in shorter reaction times and/or higher yields than the corresponding uncatalyzed reactions.This is a continuation-in-part of U.S. Application Ser. No. 124,701 filed Nov. 24, 1987, now abandoned, which is a continuation in part of Ser. No. 135,247, filed Mar. 31, 1980, now abandoned, and Ser. No. 879,025 filed June 26, 1986, now U.S. Pat. No. 4,713,476 both applications claiming priority to Federal Republic of Germany application No. 2917493, filed Apr. 30, 1979, which are herein expressly incorporated by reference.Type: GrantFiled: March 7, 1988Date of Patent: July 25, 1989Assignee: BASF AktiengesellschaftInventors: Franz Merger, Freidrich Towae
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Patent number: 4835300Abstract: A fluorine-containing urethane compounds represented by the formula ##STR1## wherein R.sub.f represents a perfluoroalkyl group having 4 to 20 carbon atoms; X represents --CH.sub.2 CH(A)--, --C.sub.k H.sub.2k -- or --SO.sub.2 N(R.sup.3)C.sub.t H.sub.2t -- (in which A represents a methyl group or ethyl group; k and t are an integer of 1 to 4; and R.sup.3 is hydrogen atom or a lower alkyl group); R.sup.1 represents a n-valent organic group; R.sup.2 represents an alkyl group having 1 to 5 carbon atoms; n is an integer of 2 to 10; and m is an integer in the range of n.gtoreq.m.gtoreq.1, subject to the limitation that when n is 2, m is 2 and R.sup.1 is ##STR2## (in which Y is a divalent organic group) and a water and oil-repelling agent and a non-sticking agent containing the compound as the active ingredient.Type: GrantFiled: October 28, 1986Date of Patent: May 30, 1989Assignee: Daikin Kogyo Co., Ltd.Inventors: Shosin Fukui, Masayoshi Shijo, Hirokazu Aoyama
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Patent number: 4820830Abstract: This invention relates to certain polyamine hydroxyalkyl carbamate monomers, polymers and copolymers thereof and blends of the same with crosslinking film making agents and films thereof deposited on substrates.Type: GrantFiled: March 2, 1987Date of Patent: April 11, 1989Assignee: King Industries, Inc.Inventor: Werner J. Blank
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Patent number: 4810820Abstract: Aliphatic and/or cycloaliphatic polyisocyanates containing allophanate groups are produced by reacting (a) a di- and/or polyisocyanate with aliphatic and/or cycloaliphatic isocyanate groups with (b) a hydroxy compound at a temperature of at least 150.degree. C. for no more than 90 minutes and then rapidly cooling the reaction mixture to a temperature of less than 100.degree. C. It is preferred that the reaction be carried out in the absence of oxygen. The products thus obtained are virtually colorless, have a relatively low viscosity and excellent storage stability.Type: GrantFiled: August 12, 1987Date of Patent: March 7, 1989Assignee: Mobay CorporationInventors: William E. Slack, Terry A. Potter, Kenneth L. Dunlap
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Patent number: 4801644Abstract: Aqueous polyurethane dispersions useful as coating compositions wherein the polyurethane comprises the reaction product of(a) an isocyanate-terminated polyurethane prepolymer containing carboxylic acid salt groups formed by reacting:(i) a polyisocyanate component containing at least 1% by weight of diphenylmethane-2,4'-diisocyanate, and(ii) an active hydrogen containing component containing a polyol and a carboxy group containing diol or triol, and(b) an active hydrogen containing chain extender.Type: GrantFiled: October 3, 1986Date of Patent: January 31, 1989Assignee: Polyvinyl Chemicals Inc.Inventor: Richard G. Coogan
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Patent number: 4791218Abstract: Crystalline alpha-epsilon amino-protected L-lysine derivatives are disclosed as well as a crystallization method therefor. These crystalline compounds are obtained in relatively high yields.Type: GrantFiled: May 23, 1986Date of Patent: December 13, 1988Assignee: Ortho Pharmaceutical CorporationInventor: John M. Pascone
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Patent number: 4788287Abstract: A high performance water and oil repellant composed of a compound comprising at least two terminal segments and an intermediate segment connecting the terminal segments and having a molecular weight of from 800 to 20,000, each terminal segment containing at least one polyfluoroalkyl group connected by a --CONH-- linking group, said intermediate segment being a urethane oligomer containing at least two --CONH-- linking groups in one molecule, and said terminal segments and intermediate segment being connected by a --CONH-- linking group.Type: GrantFiled: September 3, 1986Date of Patent: November 29, 1988Assignee: Asahi Glass Company Ltd.Inventors: Masashi Matsuo, Masayuki Tamura, Katsuji Ito
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Patent number: 4786330Abstract: A sizing agent for paper consisting essentially of a latex consisting essentially of at least one diurethane dispersed in an aqueous medium, said diurethane being of the formula: ##STR1## in which: (a) R.sub.1, R.sub.2, R.sub.5 and R.sub.6 are each alkyl radicals and at least one of them possesses a minimum of 7 carbon atoms;(b) R.sub.7 and x represent, respectively, the cationic and anionic portions of the quaternizing agent R.sub.7 x;(c) R.sub.3 and R.sub.4 are selected from C.sub.2 -C.sub.4 alkylene radicals or polyalkoxylated radicals of a degree of polycondensation of between 1 an 4; and(d) Y is ##STR2## The process of making the sizing agent and using it to size paper are also disclosed.Type: GrantFiled: January 16, 1987Date of Patent: November 22, 1988Assignee: AtochemInventors: Catherine Beuzelin, Claude Senez
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Patent number: 4781947Abstract: A sizing agent for a carbon fiber comprized mainly of an unsaturated urethane compound produced by a reaction of an unsaturated alcohol with an isocyanate which is able to couple the carbon fiber with an unsaturated polyester resin or vinylester resin is disclosed. The preferably unsaturated alcohols are allylalcohols and reaction products of an unsaturated carboxylic acids with an alkyleneoxides.Type: GrantFiled: August 12, 1987Date of Patent: November 1, 1988Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Makoto Saito, Hiroshi Toki, Makoto Miyazaki, Hiroshi Inoue
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Patent number: 4777286Abstract: Process and compounds for producing intermediates for the production of renin inhibitors.Type: GrantFiled: June 18, 1985Date of Patent: October 11, 1988Assignee: The Upjohn CompanyInventor: Heinrich J. Schostarez
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Patent number: 4772695Abstract: A process for the preparation of vinyl carbamates of formula I ##STR1## is described which comprises heating an .alpha.-halogeno-carbamate of formula II ##STR2## in which X is a halogen atom at a temperature between 70.degree. and 250.degree. C. for a period of time between several minutes up to several hours. R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different. The process is applicable to a great variety of products in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 have different meanings. The process permits to prepare in a simple and economical fashion, vinyl carbamates, which have industrial value and novel vinyl carbamates.Type: GrantFiled: September 19, 1983Date of Patent: September 20, 1988Assignee: Societe Nationale des Poudres et ExplosifsInventors: Roy A. Olofson, Gary P. Wooden, Jonathan T. Martz
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Patent number: 4770804Abstract: The invention relates to the use of combinations of water-soluble polymeric polyether polyols, in which at least 50% of the terminal hydroxyl groups are blocked by reaction with a monoisocyanate incorporating a long-chain aliphatic hydrocarbon radical, and certain surfactants as thickener systems for high water based functional fluids and to the thickened high water based functional fluids.Type: GrantFiled: August 25, 1986Date of Patent: September 13, 1988Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Hentschel, Christian Rasp, Siegfried Kussi, Udo-Winfried Hendricks
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Patent number: 4766234Abstract: The novel urethanes, in addition to at least one perfluoroalkyl group, also contain epichlorohydrin groups and dialcohol radicals in the molecule. They are prepared by reacting a fluorine-containing alcohol with epichlorohydrin to give the perfluoroalkyl-epichlorohydrin adduct, reacting this adduct with a di- or triisocyanate to give the perfluoroalkyl-epichlorohydrin-isocyanate adduct and by reacting this adduct with a dialcohol or a monoetherified dialcohol to give the desired urethanes having a perfluoroalkyl group and having epichlorohydrin groups and dialcohol radicals, and by reacting a suitable urethane compound of this type with a perfluoroalkyl-containing di- or triisocyanate to give the desired urethanes having a plurality of perfluoroalkyl groups and having epichlorohydrin groups and dialcoholradicals. The novel urethanes are preferably used for the oleophobic and hydrophobic finishing of textiles.Type: GrantFiled: November 12, 1986Date of Patent: August 23, 1988Assignee: Hoechst AktiengesellschaftInventors: Frank Wehowsky, Rolf Kleber, Lothar Jaeckel
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Patent number: 4758615Abstract: Polymers which contain urethane groups and are capable of being crosslinked by extraneous crosslinking agents, solutions thereof and aqueous dispersions thereof, prepared without the use of isocyanates by reacting polyamino compounds with polycarbonates and, if appropriate, reacting the reaction product further with polycarboxylic acids to give products having an acid number between 0 and 100, and, if appropriate, neutralizing the resulting products partly or completely by adding basic compounds, preferably organic bases, and, if appropriate, mixing the partly or completely neutralized products vigorously with an amount of water such that aqueous polymer dispersions having a solids content of up to 75% by weight, relative to the dispersion, are obtained.Type: GrantFiled: May 22, 1987Date of Patent: July 19, 1988Assignee: Hoechst AGInventors: Dieter Engel, Christoph Just, Gerhard Brindopke, Gerd Walz
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Patent number: 4755528Abstract: Disclosed are 2,3-diamino-1,4-butanedithiol; 4,5-diamino-1,2-dithiane; and their N-acyl and N-alkyl derivatives. Also disclosed are processes for preparing the disclosed compounds; pharmaceutical compositions comprising such compounds; and a method of treatment comprising administering such compounds and compositions when an antihypertensive effect or radioprotective effect is indicated.Type: GrantFiled: April 17, 1987Date of Patent: July 5, 1988Assignee: Alcon Laboratories, Inc.Inventors: Mark T. DuPriest, Billie M. York, Jr.
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Patent number: 4751273Abstract: Vinyl ether terminated urethane resins may be prepared by reacting the product obtained by the addition of acetylene to an organic polyol with an isocyanate-containing compound at temperatures ranging from about ambient to about 125.degree. C. The thus prepared resin may then be cured by irradiation from an electron beam, thermally or by exposure to an ultraviolet light to cure the resin and form a coating material.Type: GrantFiled: July 6, 1987Date of Patent: June 14, 1988Assignee: Allied-Signal, Inc.Inventors: Stephen C. Lapin, David W. House
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Patent number: RE33211Abstract: Vinyl ether terminated urethane resins may be prepared by reacting the product obtained by the addition of acetylene to an organic polyol with an isocyanate-containing compound at temperatures ranging from about ambient to about 125.degree. C. The thus prepared resin may then be cured by irradiation from an electron beam, thermally or by exposure to an ultraviolet light to cure the resin and form a coating material.Type: GrantFiled: December 19, 1988Date of Patent: May 8, 1990Assignee: Allied-Signal Inc.Inventors: Stephen C. Lapin, David W. House