Chalcogen Attached Indirectly To The Five-membered Hetero Ring By Acyclic Nonionic Bonding Patents (Class 548/547)
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Patent number: 4980481Abstract: High performance composites can be made from linear or multidimensional oligomer or blends that include unsaturated hydrocarbon crosslinking functionalities linked to a pyrimidine radical on the terminal ends of the polymeric backbones of the oligomers. The oligomers are made by condensing pyrimidine-based end-cap monomers of the formula: ##STR1## wherein Z=--OH or halogen;Y= ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substituted aryl, halogen, or mixtures thereof;j=0, 1, or 2;G=--CH.sub.2 --, --O--, --S--, --SO--, --CO--, --CHR--, --CR.sub.2 --, or --SO.sub.2 --;T=methallyl or allyl;Me=methyl; andR=hydrogen, lower alkyl, or phenyl,with suitable polymeric precursors.Type: GrantFiled: March 14, 1988Date of Patent: December 25, 1990Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4971598Abstract: An additive for fuel compositions. The additive comprises the reaction product of an alkenyl succinimide selected from the group consisting of mono-succinimides, bis-succinimides, and mixtures thereof, with iminodiacetic acid or an ethylenediamine carboxy acid. The reaction product finds particular utility as a fuel detergent.Type: GrantFiled: March 22, 1990Date of Patent: November 20, 1990Assignee: Mobil Oil CorporationInventors: Harry J. Andress, Henry H. Ashjian, Frederick J. Hills
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Patent number: 4971711Abstract: Poly (C.sub.5 -C.sub.9 lactone) modified Mannich base adducts are made by reacting a C.sub.5 -C.sub.9 lactone, an amine, an aldehyde, an N-hydroxyarylamine, and a hydrocarbyl substituted C.sub.4 -C.sub.10 monounsaturated dicarboxylic acid producing material, e.g., a polyisobutenyl, succinic anhydride, which, in turn, preferably is made by reacting a polymer of a C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 10,000 with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are about 0.7 to 2.00 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting adducts are useful per se as oil soluble dispersant additives. They are also useful in fuel and lubricating oil compositions, as well as in concentrates and additive packages.Type: GrantFiled: January 9, 1989Date of Patent: November 20, 1990Assignee: Exxon Chemical Patents, Inc.Inventors: Robert D. Lundberg, Antonio Gutierrez
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Patent number: 4965336Abstract: Linear or multidimensional, crosslinking, solvent resistant oxazole, thiazole, or imidazole (i.e., heterocycle) oligomers and blends of the crosslinking oligomers and noncrosslinking comparable polymers are described. The oligomers are prepared by reacting tetraamines, diaminodiols, or diaminothiols (i.e. four-functional compounds) with poly-carboxylic acid halides, and crosslinking phenylimide end cap monomers in a suitable solvent under an inert atmosphere.Type: GrantFiled: November 3, 1987Date of Patent: October 23, 1990Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4945104Abstract: A maleimide derivative having the formula (I): ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group which may be substituted, or an aralkyl group having 7 to 10 carbon atoms, and X.sub.1 and X.sub.2 independently represent a hydrogen atom or a halogen atom, and a production process thereof as well as a agricultural and horticultural fungicide containing, as an active ingredient, the maleimide derivative.Type: GrantFiled: June 23, 1989Date of Patent: July 31, 1990Assignee: Suntory LimitedInventors: Harukazu Fukami, Masaki Hashimoto, Shinjiro Niwata, Norio Ohtsuka, Fumio Fujita
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Patent number: 4943584Abstract: Novel (p-phenoxyphenoxy)-methyl-five-membered heeroaromatic radicals of the formula ##STR1## where the substituents have the following meanings: R.sup.1, R.sup.2, R.sup.3 hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,R.sup.4 hydrogen or C.sub.1 -C.sub.4 -alkyl, and a five-membered heteroaromatic ring, and their use for combating pests.Type: GrantFiled: April 20, 1988Date of Patent: July 24, 1990Assignee: BASF AktiengesellschaftInventors: Hans Theobald, Christoph Kuenast, Peter Hofmeister, Hans-Juergen Neubauer, Thomas Kuekenhoehner, Wolfgang Krieg, Joachim Leyendecker, Uwe Kardorff
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Patent number: 4940552Abstract: Dispersants containing basic amine groups are passivated toward fluorohydrocarbon compositions by reaction with a passivating amount of a dicarboxylic acid or anhydride.Type: GrantFiled: April 30, 1982Date of Patent: July 10, 1990Assignee: Amoco CorporationInventors: John A. Cengel, Peter G. Pappas
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Patent number: 4937007Abstract: A process for inhibiting the deposit of paraffins in crude oils and petroleum fractions incorporating additives of the family of N-substituted succinimide ethers. The additives according to the invention make it possible, on the one hand, to maintain in dispersion the whole range of paraffins improving the flowing properties of crude oils and, on the other, to prevent the deposit of the heavier paraffins on the walls. Therefore, the process is effective during both the storage and the transportation of crude petroleum.Type: GrantFiled: July 12, 1984Date of Patent: June 26, 1990Assignee: Societe Nationale Elf AquitaineInventors: Bernard Damin, Alain Faure, Paul Maldonado, Jean-Luc Volle
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Patent number: 4927562Abstract: Disclosed are elastomer-compatible mono- and bis-alkenylsuccinimide oxamides dispersants prepared by reacting a polyalkyleneamine succinimide with an amount of oxalic acid sufficient to react with at least 30 percent of the reactive nitrogens on the succinimide chain.Type: GrantFiled: October 24, 1988Date of Patent: May 22, 1990Assignee: Texaco Inc.Inventors: Thomas J. Karol, Theodore E. Nalesnik
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Patent number: 4925938Abstract: Novel hindered hydroxyphenyl alkyl isocyanurates are provided which are useful as stabilizers of resins made from at least one ethylenically unsaturated monomer.Type: GrantFiled: December 20, 1988Date of Patent: May 15, 1990Assignee: ICI Americas Inc.Inventors: James P. Neilan, John F. Stephen
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Patent number: 4916235Abstract: Resins are prepared by Diels-Alder polymerization of compounds of the formula ##STR1## where R is a divalent linking group.Type: GrantFiled: November 26, 1986Date of Patent: April 10, 1990Assignee: University of DaytonInventors: Loon-Seng Tan, Fred E. Arnold
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Patent number: 4913721Abstract: Compounds of formula (I): ##STR1## and stereoisomers thereof, wherein V is an oxygen or a sulphur atom; X and Y, which may be the same or different, are hydrogen or halogen atoms, or optionally substituted alkyl, optionally substituted alkenyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted alkynyl, haloalkyl, alkoxy, haloalkoxy, optionally substituted aryloxy, optionally substituted arylalkoxy, optionally substituted acyloxy, optionally substituted amino, acylamino, nitro, nitrile, --CO.sub.2 R.sup.3, --CONR.sup.4 R.sup.5, or --COR.sup.6 groups; or the groups X and Y, when they are in adjacent positions on the phenyl ring, may join to form a fused ring, either aromatic or aliphatic, optionally containing one or more heteroatoms; and Z is optionally substituted methylene, optionally substituted amino, oxygen or sulphur and when Z is a substituted methylene group, the substituent may join the 2-position of the phenyl ring to form a non-aromatic fused ring; R.sup.1 and R.Type: GrantFiled: October 31, 1988Date of Patent: April 3, 1990Assignee: Imperial Chemical Industries PLCInventors: John M. Clough, Christopher R. A. Godfrey
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Patent number: 4906252Abstract: This invention is to a fuel oil composition containing polyolefinic succinimide polyamine alkyl acetoacetate adducts of the general following: ##STR1## wherein the variables are defined herein. The adduct additives are especially useful in concentrates and fuel oil compositions as dispersants. The formulations have excellent cold flow properties compared to similar formulations not containing the inventive adduct.Type: GrantFiled: April 7, 1989Date of Patent: March 6, 1990Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert D. Lundberg, Robert A. Kleist, Ricardo Bloch
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Patent number: 4897086Abstract: Disclosed is an additive for liquid hydrocarbon fuel composition, particularly diesel fuels. The additive composition is the reaction product of polyalkenyl-substituted succinimides, aldehydes, and triazoles. It also finds use in lubricant compositions.Type: GrantFiled: December 29, 1988Date of Patent: January 30, 1990Assignee: Mobil Oil CorporationInventors: David A. Blain, Angeline B. Cardis, Sylvia S. McGonigle
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Patent number: 4871475Abstract: Polysulfone and polyethersulfone oligomers are made by the condensation of phenols and halogenated moieties and exhibit improved solvent resistance when capped with crosslinkable end cap imidophenols. Composites made with a blend of the oligomers and corresponding polymers formed from the phenols and halogenated moieties, but without end caps, exhibit superior impact resistance while retaining the desired solvent resistance. Conductive or semiconductive oligomers (or their composites) can be formed by doping suitable oligomers, especially those prepared from Schiff base diols.Type: GrantFiled: October 7, 1985Date of Patent: October 3, 1989Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4868270Abstract: High thermal stabilities are achievable in linear or multidimensional sulfone, solvent resistant oligomers by incorporating oxazole, thiazole, or imidazole linkages into the oligomer backbone. Blended oligomers of crosslinking oligomers and noncrosslinking compatible polymers are also described. The oligomers include residues of four-functional compounds of the formula: ##STR1## wherein M=--CO--, --S--, --O--, --SO.sub.2 -- or --(CF.sub.3).sub.2 C--; andY=--OH, --SH, or --NH.sub.2.In an improved method, the reactants are condensed at or below ambient temperature in the presence of pyridine in a suitable solvent such as N,N'-dimethylacetamide (DMAC).Type: GrantFiled: November 17, 1987Date of Patent: September 19, 1989Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard, Ronald R. Stephenson
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Patent number: 4868314Abstract: 4-Benzyloxy-3-pyrrolin-2-on-1-yl acetamide is an advantageous intermediate product for the production of pharmaceutically effective 4-hydroxypyrrolidin-2-1-yl acetamide. Processes for the production of the intermediate product as well as the active substance are described.Type: GrantFiled: April 14, 1988Date of Patent: September 19, 1989Assignee: Lonza Ltd.Inventor: Thomas Meul
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Patent number: 4861890Abstract: A process for producing chiral enamines by isomerizing a beta, gamma unsaturated amine with a rhodium-diphosphine complex with the addition of an achiral triarylphosphine and, if desired, hydrolyzing the compound of the enamine I obtained to the corresponding aldehyde.Type: GrantFiled: August 10, 1987Date of Patent: August 29, 1989Assignee: Hoffmann-La Roche Inc.Inventors: Bernd Heiser, Hansjorg Stoller
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Patent number: 4851547Abstract: A method for the production of a maleimide by dehydration and ring-closure of maleinamic acid obtained by the reaction of maleic anhydride with an amine, which method is characterized by effecting ring-closure imidation of said maleinamic acid by heating said maleinamic acid in a water-insoluble or water-immiscible inert organic non-polar solvent in the presence of a catalyst of an amine salt produced from the amine and an acid, a mixture of the amine salt and the acid, or a supported catalyst on a solid carrier the catalyst or the acid.Type: GrantFiled: December 23, 1988Date of Patent: July 25, 1989Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yuichi Kita, Koichi Nakagawa, Kentaro Sakamoto, Akio Fukui, Masao Baba, Yoichi Nakagawa
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Patent number: 4851501Abstract: The solvent resistance of polyethersulfone oligomers is enhanced by using difunctional imidophenol end-cap monomers to provide improved crosslinking. The imidophenol monomers include two unsaturated functionalities capable of cross-linking upon thermal or chemical activation. Blends, pregregs, and compositions using the novel end caps are described for linear or multidimensional polyethersulfone oligomers.Type: GrantFiled: December 17, 1987Date of Patent: July 25, 1989Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4847285Abstract: Substituted 1-phenyl-3-methyl-pyrrolidinediones of the general formula: ##STR1## in which R may represent fluorine, chlorine, bromine, iodine, CN, SCN or methanesulfonyl, Z represents one or more of the same or different substituents selected from fluorine, chlorine, bromine, iodine, NO.sub.2, CN, SCN, sulfamoyl, phenoxy, an alkyl having from 1 to 3 carbon atoms, a halogenalkyl having from 1 to 3 carbon atoms and 1 to 7 halogen atoms selected from fluorine, chlorine or bromine, an alkyloxy having from 1 to 3 carbon atoms, a halogenalkoxy having from 1 to 3 carbon atoms and 1 to 4 halogen atoms selected from the group consisting of fluorine, chlorine and bromine, an allyloxy or ethoxycarbonyl, and n is 0 or an integer from 1 to 4 with the following types of substitutions: 2-, 4-, 2,3-, 2,4-, 2,5-, 2,6-, 3,4-, 2,3,4-, 2,3,5-, 2,3,6-, 2,4,5-, 2,4,6-, 3,4,5-, 2,3,4,5-, 2,4,5,6- and 2,3,5,6-. The invention also relates to a process for making the compounds, which are active ingredients of fungicidal agents.Type: GrantFiled: April 27, 1988Date of Patent: July 11, 1989Assignee: The Dow Chemical CompanyInventors: Norman Haberle, Anneliese Reutter, Peter Kinzel
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Patent number: 4839073Abstract: This invention is to compatibility aids containing polyolefinic succinimide polyamide alkyl acetoacetate or trialkyl acetic anhydride adducts of the general formula: ##STR1## wherein Z.sup.1 and Z.sup.3 are the same or different and are moities of the formula: ##STR2## Z.sup.2 is a moiety of the formula: ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are the same or different and are alkylene of from 1 to 6 carbon atoms, m is an integer of from 1 to 5, each A' is independently selected from the group consisting of H, A and the moiety: ##STR4## wherein A" is H or A, R.sup.3 is as defined above, R.sup.6 is alkylene of from 1 to 6 carbon atoms, T.sup.1 and T.sup.2 are the same or different and each comprises a member selected from the group consisting of moieties of the formula: ##STR5## wherein B' is substituted or unsubstituted alkyl or aryl-containing group, n.sup.1 is an integer of 0 to 10, n.sup.2 is an integer of 0 to 10, n.sup.3 is an integer of from 0 to 10, n.sup.Type: GrantFiled: May 18, 1987Date of Patent: June 13, 1989Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Jacob Emert, Robert A. Kleist, Malcolm Waddoups
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Patent number: 4839072Abstract: This invention is to polyolefinic succinimide polyamine alkyl acetoacetate of the general formula: ##STR1## wherein Z.sup.1 and Z.sup.3 are the same or different and are moieties of the formula: ##STR2## Z.sup.2 is a moiety of the formula: ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are the same or different and are alkylene of from 1 to 6 carbon atoms, m is an integer of from 1 to 5, each A' is independently selected from the group consisting of H, A and the moiety: ##STR4## wherein A" is H or A, R.sup.3 is as defined above, R.sup.6 is alkylene of from 1 to 6 carbon atoms, T.sup.1 and T.sup.2 are the same or different and each comprises a member selected from the group consisting of moieties of the formula: ##STR5## wherein B' is substituted or unsubstituted alkyl or aryl-containing group, n.sup.1 is an integer of 0 to 10, n.sup.2 is an integer of 0 to 10, n.sup.3 is an integer of from 0 to 10, n.sup.4 is an integer of from 0 to 10, with the provisos that the sum of n.sup.1, n.sup.2, n.sup.3 and n.sup.Type: GrantFiled: May 18, 1987Date of Patent: June 13, 1989Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert A. Kleist
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Patent number: 4834776Abstract: The incorporation of minor amounts of an additive prepared from the reaction products of a long chain oligomeric alkylsuccinic anhydride or the corresponding acid, a mono or polyfunctional epoxide and a long chain secondary amine provide improved cloud point, pour point and filterability for diesel and heating fuels.Type: GrantFiled: December 7, 1987Date of Patent: May 30, 1989Assignee: Mobil Oil CorporationInventors: Joan C. Axelrod, Sheldon Chibnik
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Patent number: 4826997Abstract: The invention is a compound which comprises an unsaturated cyclic imide moiety and an aryl cyclobutene moiety, wherein the cyclobutene moiety is fused to the aryl radical, and wherein the imide nitrogen is connected to the aryl radical by a direct bond or a bridging member. Another aspect of this invention is a polyimide polymeric composition which results from the polymerization of the above-described compounds.Type: GrantFiled: August 4, 1986Date of Patent: May 2, 1989Assignee: The Dow Chemical CompanyInventor: Robert A. Kirchhoff
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Patent number: 4824986Abstract: A method of forming a novel metal chelate protein conjugate is described. Also described are metal chelates and precursor compounds to the metal chelates. The novel metal chelate protein conjugates are particularly useful in the diagnostic imaging of tumors and in tumor therapy.Type: GrantFiled: April 26, 1985Date of Patent: April 25, 1989Assignee: The United States of America as represented by the Secretary of the Department of Health and Human ServicesInventor: Otto Gansow
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Patent number: 4802893Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: April 20, 1988Date of Patent: February 7, 1989Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac
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Patent number: 4801603Abstract: A guanidinobenzoic ester derivative having the formula is novel and effective to inhibit enzymes such as trypsin, plasmin and thrombin, being useful for treatment of the pancreatitis and hemorrhagic disease and thrombosis. ##STR1## wherein X represents a group of the formula: ##STR2## in which Y is a group of the formula: --(CH.sub.2).sub.m --, m being an integer of 2 or 3, ##STR3## or a group of the formula:--ORin which R is a hydrogen atom or a lower alkyl group, and n represents an integer of 1 to 5.Type: GrantFiled: December 24, 1986Date of Patent: January 31, 1989Assignee: Eisai Co., Ltd.Inventors: Shigeru Souda, Naoyuki Shimomura, Norihiro Ueda, Shuhei Miyazawa, Takashi Yamanaka, Kaname Miyamoto, Ieharu Hishinuma, Junichi Nagakawa, Naoko Nagaoka, Hidetoshi Kawashima, Tsutomu Kawata, Junsaku Nagaoka, Tsuneo Wakabayashi
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Patent number: 4792604Abstract: A process for the manufacture of haloalkyl lactams having the formula ##STR1## wherein n is an integer having a value of from 1 to 3; m is an integer having a value of 1 or 2 and X is chlorine or bromine in the absence of an inert solvent by reacting a hydroxyalkyl lactam of the formula ##STR2## with a thionyl chloride or bromide in the liquid phase under anhydrous conditions, vaporizing and removing any excess thionyl halide along with SO.sub.2 by-product from the liquid reaction mixture under vacuum followed by vacuum distillation of the remaining liquid product mixture at a temperature below its decomposition and recovering said product.The product of this process can be obtained in greater than 90% yield and 99% purity.Type: GrantFiled: March 20, 1987Date of Patent: December 20, 1988Assignee: GAF CorporationInventors: David J. Tracy, Thomas Rizzo
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Patent number: 4786738Abstract: A method for the production of maleimides, which comprises subjecting maleinamic acids to ring-closure imidation in an organic solvent capable of forming an azeotrope with water in the presence of an acid catalyst at a temperature in the range of 120.degree. to 250.degree. C. while removing the formed water in the form of an azeotrope with said organic solvent and thereafter purifying the produced maleimides.Type: GrantFiled: October 27, 1986Date of Patent: November 22, 1988Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yuichi Kita, Kentaro Sakamoto, Masao Baba, Atsushi Okubo
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Patent number: 4778900Abstract: N,N'-dimethyl aromatic diamines are prepared from the corresponding diprimary amines via a two step synthesis forming first the corresponding di-succinylimidomethylamine and then reductively cleaving the succinylimido group. The products are useful, e.g., as epoxy curing agents.Type: GrantFiled: February 5, 1986Date of Patent: October 18, 1988Assignee: American Cyanamid CompanyInventor: Dalip K. Kohli
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Patent number: 4747965Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: August 15, 1986Date of Patent: May 31, 1988Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac
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Patent number: 4739030Abstract: The solvent resistance of polysulfone, polyether sulfone, and polyesters is enhanced by using difunctional end-cap monomers of the present invention to provide improved crosslinking. The imidophenol monomers include two unsaturated functionalities capable of crosslinking upon thermal or chemical activation. Oligomer, oligomer blends, pregregs, and composites using the novel end caps are also described.Type: GrantFiled: January 6, 1986Date of Patent: April 19, 1988Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4734498Abstract: 3.beta.-Substituted succinimido)azetidinones represented by the formula ##STR1## wherein R and R.sub.1 are e.g. C.sub.1 -C.sub.5 alkanoyloxy, benzoyloxy, substituted benzoyloxy, or benzyloxy, or one of R and R.sub.1 is hydrogen and the other is as defined above; R.sub.2 is C.sub.1 -C.sub.4 alkoxycarbonyl or an arylvinyl group e.g. styrryl or 2-furylvinyl; and R.sub.3 is e.g. protected-carboxymethyl, or an NH protecting group; are provided via stereoselective cycloaddition of imines with chiral auxiliary 3,4-disubstituted succinimidoacetyl chlorides. The chiral auxiliary e.g., 3S,4S-dibenzoyloxy-and 3S,4S-diacetoxysuccinimidoacetyl chloride, is obtained from tartaric acid via anhydride and imide formation with retention of chirality. The chiral azetidinones obtained are useful intermediates to .beta.-lactam antibacterial compounds.Type: GrantFiled: July 10, 1986Date of Patent: March 29, 1988Assignee: Eli Lilly and CompanyInventor: Robin D. G. Cooper
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Patent number: 4730050Abstract: A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.Type: GrantFiled: April 3, 1987Date of Patent: March 8, 1988Assignee: Beecham Group p.l.c.Inventor: Richard A. G. Smith
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Patent number: 4721768Abstract: Novel polyamide block copolymers are provided which comprise a central block of a soft segment derived from the residue of a polymeric polyol or polycarboxylic acid joined to terminal hard segment polyamide blocks. The linkages which join the blocks are of a novel type and are the opened form of certain monoazetidine-2,4-dione rings.The block copolymers can be prepared very rapidly via anionically polymerizing lactams on to prepolymer soft segments containing terminal azetidine-2,4-dione rings.The speed with which the polymerizations can be carried out make the block copolymers particularly useful for the RIM preparation of molded parts.Type: GrantFiled: February 9, 1987Date of Patent: January 26, 1988Assignee: The Dow Chemical CompanyInventors: Edward F. Cassidy, David J. Goldwasser, Kemal Onder
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Patent number: 4711964Abstract: Resins are prepared by polymerization of compounds of the formula ##STR1## where R is a divalent linking group. Blends of a compound of the formula (I) as defined above and a bis-maleimide of the formula ##STR2## where Ar' is an aromatic linking group.Type: GrantFiled: May 8, 1986Date of Patent: December 8, 1987Assignee: University of DaytonInventors: Loon-Seng Tan, Fred E. Arnold
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Patent number: 4709052Abstract: A soil disease controlling agent for preventing and controlling diseases caused by pathogenic fungi living in soil, which comprises an effective amount of at least one of a 2-cycloalkenylamine derivative and its salts as an active ingredient, and at least one inert carrier or diluent.Type: GrantFiled: May 16, 1984Date of Patent: November 24, 1987Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroki Tomioka, Tadashi Ooishi, Junya Takahashi, Mitsuru Sasaki, Naonori Hirata
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Patent number: 4692538Abstract: New and more efficient chemical processes are provided for preparing (.alpha.S, 5S)-.alpha.-amino-3-chloro-2-isoxazoline-5-acetic acid (AT-125), (.alpha.S, 5S)-.alpha.-amino-3-bromo-2-isoxazoline-5-acetic acid (bromo AT-125) and the C-5 epimers thereof. The disclosed processes allow the above-mentioned antitumor agents to be produced in high yield and purity with substantially fewer steps than prior art chemical procedures.Type: GrantFiled: May 28, 1985Date of Patent: September 8, 1987Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Terrence W. Doyle, Yulin Chiang
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Patent number: 4692532Abstract: Substituted (4-hydroxyphenylthioalkyl) derivatives of the formula ##STR1## are prepared by the reaction of the appropriate ring and hydroxybenzene thiol compounds and are useful stabilizers of organic materials.Type: GrantFiled: November 23, 1984Date of Patent: September 8, 1987Assignee: Ciba-Geigy CorporationInventors: John D. Spivack, Ramanathan Ravichandran, Stephen D. Pastor
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Patent number: 4683276Abstract: Thermoset products are prepared by polymerizing (A) at least one thermosettable compound which contains both a maleimide group and a cyanate group such as 3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenyl cyanate and optionally (B) at least one of (1) at least one aromatic polycyanate such as bisphenol A dicyanate; (2) at least one polymaleimide such as N,N'-(methylenedi-p-phenylene)bismaleimide; (3) at least one material having an average of more than one vicinal epoxide group per molecule such as a diglycidyl ether of bisphenol A; (4) at least one polymerizable ethylenically unsaturated material such as styrene; or (5) a mixture of any two or more of components 1-4 in any combination.Type: GrantFiled: October 1, 1985Date of Patent: July 28, 1987Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: 4680129Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides wherein one or more of the nitrogen of the polyamino moiety is substituted with: ##STR1## wherein R.sub.4 is alkylene of from 1 to 6 carbon atoms; m is an integer of from 0 to 2; R.sub.5 is alkylene of from 2 to 5 carbon atoms; p is an integer of from 1 to 100; R.sub.6 is selected from the group consisting of hydrogen and hydrocarbyl of from 1 to 30 carbon atoms; and with the proviso that if m is one or two then R.sub.6 is hydrogen.Type: GrantFiled: January 17, 1986Date of Patent: July 14, 1987Assignee: Chevron Research CompanyInventor: Frank Plavac
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Patent number: 4680338Abstract: A selective bifunctional sequential linker has the formulaY.dbd.C.dbd.N--Q--A--C(O)--Zwherein Q is a homoaromatic or heteroaromatic ring system; A is a single bond or an unsubstituted or substituted divalent C.sub.1-30 bridging group; Y is O or S; and Z is Cl, Br, I, N.sub.3, N-succinimidyloxy, imidazolyl, 1-benzotriazolyloxy, OAr where Ar is an electron-deficient activating aryl group, or OC(O)R where R is --A--Q--N.dbd.C.dbd.Y or C.sub.4-20 tertiary-alkyl. A method for activating an amine function towards reaction with a second amine involves reacting the amine with the foregoing linker. The resultant isocyanate or isothiocyanate derivative can then be reacted with a second amine to form a urea or thiourea conjugate.The linker is useful for producing conjugates of ligands with amine-containing polymers and/or proteins, especially for forming antibody conjugates with chelators, drugs, enzymes, detectable labels and the like.Type: GrantFiled: October 17, 1985Date of Patent: July 14, 1987Assignee: Immunomedics, Inc.Inventor: Boby M. Sundoro
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Patent number: 4661604Abstract: Resins are prepared from polysulfone and polyethersulfone polymers that bear functional groups derived from compounds that are condensation products of amino-phenols and acid anhydrides. The polymers are prepared by coreacting aromatic compounds holding two hydroxyl groups, aromatic compounds holding two active halogen groups, and the condensation product of amino-phenol and acid anhydride, the condensation product holding one hydroxyl group. The resulting product has a molecular weight between about 1,000 and 40,000, preferably between about 5,000 and 30,000, and can be cross-linked to form a resin that is thermoplastic and solvent resistant.Type: GrantFiled: August 12, 1983Date of Patent: April 28, 1987Assignees: TRW, Inc., The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 4654433Abstract: A simple single step process for preparing alkyl and substituted alkyl esters of amino acids is described. The products are bioactive compounds including compounds useful as antihypertensive agents.Type: GrantFiled: January 14, 1985Date of Patent: March 31, 1987Assignee: Merck & Co., Inc.Inventor: David L. Hughes
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Patent number: 4648886Abstract: Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils and fuels. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides wherein one or more of the amino nitrogens of the succinimide is substituted with ##STR1## wherein R.sub.4 is hydrocarbyl of from 1 to 30 carbon atoms; R.sub.5 is hydrocarbyl of from 2 to 30 carbon atoms or 13 R.sub.6 --(OR.sub.6).sub.p -- wherein R.sub.6 is alkylene of 2 to 5 carbon atoms and p is an integer from 1 to 100; and m is an integer of from 0 to 1.Type: GrantFiled: January 16, 1986Date of Patent: March 10, 1987Assignee: Chevron Research CompanyInventors: Thomas F. Buckley, III, Robert H. Wollenberg
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Patent number: 4647390Abstract: Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils and fuels. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides wherein one or more of the amino nitrogens of the succinimide is substituted with ##STR1## wherein R.sub.4 is hydrocarbyl of from 1 to 30 carbon atoms; R.sub.5 is hydrocarbyl of from 2 to 30 carbon atoms or --R.sub.6 --(OR.sub.6).sub.p -- wherein R.sub.6 is alkylene of 2 to 5 carbon atoms and p is an integer from 1 to 100; and m is an integer of from 0 to 1.Type: GrantFiled: January 16, 1986Date of Patent: March 3, 1987Assignee: Chevron Research CompanyInventors: Thomas F. Buckley, III, Robert H. Wollenberg
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Patent number: 4642353Abstract: Photocrosslinkable polymers having an average molecular weight of at least 1,000 and side groups of the formula Ia and/or Ib ##STR1## in which R, R', R.sub.1, R.sub.2, A, E, Y and n are as defined in claim 1, are suitable, for example, for preparing solvent-resistant coatings on metals and, in particular, for preparing printing plates or printed circuits. The group of the formula Ia and/or Ib content is at least 0.5%, preferably 5-100%, based on the number of the polymer's recurring structural elements.Type: GrantFiled: February 20, 1986Date of Patent: February 10, 1987Assignee: Ciba-Geigy CorporationInventor: Joseph Berger
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Patent number: 4638078Abstract: The invention is a compound which comprises an amido alkenoic acid or a water-soluble salt thereof and and arylcyclobutene moiety, wherein the cyclobutene moiety is fused to the aryl radical, and wherein the amide nitrogen is connected to the aryl radical of the arylcyclobutenyl moiety by a direct bond or a bridging member.Type: GrantFiled: April 25, 1985Date of Patent: January 20, 1987Assignee: The Dow Chemical CompanyInventor: Robert A. Kirchhoff
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Patent number: 4620015Abstract: A novel, efficient, economical procedure for the synthesis of ethers of n-propanoldiamine having the formula: ##STR1## wherein R is a straight or branched chain lower alkyl group or an aralkyl group, Ar is an aromatic group, Ar.sup.1 is an aromatic or heterocyclic group, A is a tertiary aliphatic, cycloaliphatic or heterocyclic amino group and addition salts thereof with pharmacologically acceptable acids.Type: GrantFiled: August 10, 1983Date of Patent: October 28, 1986Assignee: Carter-Wallace, Inc.Inventor: Frank J. Stiefel