Chalcogen Or Nitrogen Attached Indirectly To The Hetero Ring By Nonionic Bonding Patents (Class 540/531)
  • Patent number: 5507843
    Abstract: The present invention is directed to the use of multiple cyclic nitrogen-containing alkoxylate compounds as additives in fuel compositions. The invention is also directed to the use of these multiple cyclic nitrogen-containing alkoxylate compounds for decreasing intake valve deposits, controlling octane requirement increases and reducing octane requirement. The invention is further directed to a class of multiple cyclic nitrogen-containing alkoxylate compounds.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: April 16, 1996
    Assignee: Shell Oil Company
    Inventors: Jiang-Jen Lin, Pen-Chung Wang, Sarah L. Weaver
  • Patent number: 5508435
    Abstract: .beta.- or .gamma.-Ketoesters and .beta.- or .gamma.-ketoamides are asymmetrically reduced with a Ru(II)-BINAP derived catalyst at about 40.degree. C. and about 50N/mm.sup.2 of hydrogen in the presence of a strong acid.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: April 16, 1996
    Assignee: Merck & Co., Inc.
    Inventors: Joseph D. Armstrong, III, Lisa DiMichele, Alan W. Douglas, Jennifer L. Keller, Steven A. King, Andrew S. Thompson, Thomas R. Verhoeven
  • Patent number: 5496805
    Abstract: Diuresis, natriuresis, and the lowering of blood pressure are produced in a host by administering one or more neutral endopeptidase inhibitors. An additional blood pressure lowering agent such as an angiotensin converting enzyme inhibitor can be administered along with the neutral endopeptidase inhibitor.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: March 5, 1996
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Norma G. Delaney, Eric M. Gordon, Jack M. DeForrest, David W. Cushman
  • Patent number: 5470849
    Abstract: This invention relates to a method of inhibiting platelet aggregation, and compounds which are mimics of the peptide sequence Arg-Gly-Asp.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: November 28, 1995
    Assignee: SmithKline Beecham Corp.
    Inventors: James F. Callahan, William F. Huffman
  • Patent number: 5457122
    Abstract: The phenylalkan(en)oic acids of the formula: ##STR1## as defined herein, possess an antagonistic activity on leukotriene B.sub.4.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: October 10, 1995
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Mitoshi Konno, Takahiko Nakae, Nobuyuki Hamanaka
  • Patent number: 5438118
    Abstract: Peptide mimics, having a constrained peptide backbone conformation, are HIV protease inhibitors. A compound of this invention is, for example, 3-Benzyl-5(alaninyl-1-aminoethyl)-2,3,6,7-tetrahydro-N-azepinyl-2-propiony l-valinyl-valinyl methyl ester.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: August 1, 1995
    Assignee: SmithKline Beechman Corp.
    Inventors: James F. Callahan, William F. Huffman, Michael L. Moore, Kenneth A. Newlander
  • Patent number: 5385948
    Abstract: A solvent for producing emulsifiable concentrates from agriculturally active chemicals which are insoluble in water comprises an alkoxyalkyl lactam such as butoxy propyl pyrrolidone. An agriculturally active chemical and the alkoxyalkyl lactam are admixed optionally with co-solvents, emulsifiers and surfactants to produce a stable emulsifiable concentrate. The concentrate is dilutable with water at the point of use to produce either macro or micro emulsions which are themselves stable to assure even application.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: January 31, 1995
    Assignee: ISP Investments Inc.
    Inventors: Ratan K. Chaudhuri, Kolazi S. Narayanan, Lowell R. Anderson
  • Patent number: 5384406
    Abstract: This invention relates to hydrolysis resistant, water-soluble ammonium salt solids which are biologically active and which are described by the formula ##STR1## wherein m has a value of from 1 to 3; n has a value of from 1 to 4 and is equal to the free valences in anion R; p has a value of from 1 to 3; R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group of hydrogen, and C.sub.1 to C.sub.2 alkyl; R.sub.5 and R.sub.6 are each independently selected from the group of hydrogen, hydroxyalkyl and alkoxyalkyl radicals having from 1 to 10 carbon atoms and R is the anion of a biologically active, water-insoluble anion having at least 1 deprotonized hydrogen and is derived from a biologically active, acidic, organic compound selected from the group of a carboxylic, thiocarbonic, sulfonic, sulfinic, thiosulfonic, thioacid, mono- and di-thiophosphate and phosphorous containing acid, having a pKa* value less than 5.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: January 24, 1995
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Ratan K. Chaudhuri, Robert B. Login
  • Patent number: 5354862
    Abstract: Antimicrobial compounds of the formula ##STR1## wherein R is selected from (A)(C.sub.1 to C.sub.20) straight or branched alkyl, optionally substituted with hydroxy, halogen, alkoxy, phenoxy, or --C(.dbd.O)R' wherein R' is selected from C.sub.1 -C.sub.20)alkyl, (C.sub.1 -C.sub.20)alkoxy, phenoxy, or NHR" wherein R" is (C.sub.1 -C.sub.6)alkyl or phenyl; (B) benzyl; (C) phenethyl; (D) cyanoethyl; (E) 2-cyanoethyl; (F) propargyl; and (G) allyl;X=halogen (chlorine, bromine, or iodine), phosphate, acetate, benzoate, citrate, tartrate, alkyl- or aryl-sulfonate, alkylsulfate; and ##STR2## represents a 3-to 7-membered ring that contains at least one nitrogen atom optionally substituted with one or more substituents selected from (C.sub.1 -C.sub.3)alkyl, halo, and carboxyl, said ring optionally containing one or two hetreoatoms in addition to said one nitrogen atom, selected from sulfur, oxygen, and a second nitrogen;Processes for inhibiting microbial growth, and compositions suitable therefore are also disclosed.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: October 11, 1994
    Assignee: Rohm and Haas Company
    Inventor: Adam C. Hsu
  • Patent number: 5352251
    Abstract: The present invention is directed to the use of cyclic amide alkoxylate compounds as additives in fuel compositions having a major amount of a mixture of hydrocarbons in the gasoline boiling range and a minor amount of one or more cyclic amide alkoxylate compounds of the formula: ##STR1## wherein x is from 2 to 20 and y is from 1 to 50. R.sub.1 and R.sub.2 are independently hydrogen, hydrocarbyl of 1 to 100 carbon atoms or substituted hydrocarbyl of 1 to 100 carbon atoms. R.sub.3 is hydrocarbyl of 1 to 100 carbon atoms or substituted hydrocarbyl of 1 to 100 carbon atoms and R.sub.4 is independently hydrocarbyl of 2 to 100 carbon atoms or substituted hydrocarbyl of 2 to 100 carbon atoms. R.sub.5 is hydrogen, hydrocarbyl of 1 to 100 carbon atoms, or substituted hydrocarbyl of 1 to 100 carbon atoms or acyl of 1 to 20 carbon atoms.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: October 4, 1994
    Assignee: Shell Oil Company
    Inventors: Jiang-Jen Lin, James R. Macias, Earl J. Haury, Sarah L. Weaver, Charles L. Edwards, Pen-Chung Wang, Garo G. Vaporciyan
  • Patent number: 5274167
    Abstract: An optically active N-(meth)acryloyl amino acid amide of the formula ##STR1## in which R is hydrogen or methyl,R.sub.1 represents an optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl radical,R.sub.3 represents hydrogen or denotes together with R.sub.1 a tri- or tetramethylene group;X denotes oxygen or a NR.sub.4 -group wherein R.sub.4 represents hydrogen or alkyl or denotes together with R.sub.2 and the nitrogen atom a 5- to 7-membered ring which ring is optionally substituted by the group COO-alkyl (1-6 carbon atoms) or by one or two alkyl radicals (1-4 carbon atoms) andR.sub.2 denotes a strongly space-filling hydrocarbon radical.The amide is polymerized and optionally bound to a support such as silica, and can then be used for the chromatographic separation of racemic mixtures of pharmacologically active compounds.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: December 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Lange, Bruno Bomer, Rolf Grosser, Dieter Arlt
  • Patent number: 5225436
    Abstract: Certain aryl substituted naphthalene, benzoxepine, benzazepine and henzocycloheptene derivatives are disclosed. The compounds are useful in treating hyperproliferative skin disease, allergic reactions and inflammation.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: July 6, 1993
    Assignee: Schering Corporation
    Inventors: Neng-Yang Shih, Pietro Mangiaracina, Michael J. Green, Ashit K. Ganguly
  • Patent number: 5192759
    Abstract: 1,2,3,4-tetrahydronaphthlamines of formula (1) ##STR1## wherein R is H or OCH.sub.3 ; ##STR2## is either at 1 or 2 position R.sub.1 is H;R.sub.2 is selected from:L-prolyl, optionally N-substituted with acetyl or carbobenzoxy,L-pyroglutamyl,(pyrrolidin-2-one-1-yl)acetyl,3-carboxy-2-hydroxypropyl:or R.sub.1 and R.sub.2 taken together with the nitrogen atom form the ring ##STR3## wherein n=1,2,3 and R.sub.3 -H, OH are nootropic substances potent enhancers of learning processes and memory.Orally or parenterally administrable pharmaceutical compositions in unit dosage form comprise between about 100 and about 500 mg of a compound of formula (1).
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: March 9, 1993
    Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
    Inventors: Fabio Giannessi, Orlando Ghirardi, Domenico Misiti, Maria O. Tinti, Roberto Cozzolino
  • Patent number: 5149805
    Abstract: Monoblocked diisocyanates which contain little free and diblocked diisocyanate are obtained by a process which involves adding 1 mole of a blocking agent to a diisocyanate which is present in excess and subsequently removing the excess diisocyanate by thin film evaporation. The compounds produced are useful for the production of cataphoresis resins.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: September 22, 1992
    Assignee: Huels Aktiengesellschaft
    Inventors: Rainer Gras, Elmar Wolf, Josef Disteldorf, Werner Huebel, Horst Schnurbusch
  • Patent number: 5077307
    Abstract: Thienopyran derivatives of the general formula ##STR1## in which the radial ##STR2## denotes one of the formulae ##STR3## R denotes hydrogen or a radical --CN, --CHO, --CH.dbd.NOH, --CONH.sub.2 or --COOR.sub.1,R.sub.1 denotes the radical (C.sub.1 -C.sub.4)-alkyl and n denotes an integer 3, 4 or 5, and a process for their preparation, pharmaceutical preparation and their use for the treatment of diseases which can be cured by activation of membrane K.sup.+ channels, such as high blood pressure and asthma.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: December 31, 1991
    Assignee: Chemisch Pharmazeutische Forschungsgesellschaft m.b.H.
    Inventors: Dieter Binder, Franz Rovenszky, Josef Weinberger, Hubert P. Ferber
  • Patent number: 5041545
    Abstract: Hydrazide functionalized 2-hydroxybenzophenone ultraviolet light and heat stabilizers and derivatives are disclosed having the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X, Y, Z, all substituents thereof, and n are set forth in the Summary of the Invention. Y--N(R.sup.6)--Z is the hydrazide or derivative group and --X--R.sup.5 -- links the hydrazide group to an aromatic nucleus of the optionally substituted benzophenone group. Derivatives are, for example, acyl hydrazides, diacyl hydrazides (including imides), hydrazones and alkyl hydrazides. The compounds are useful as ultraviolet light absorbers and heat stabilizers for plastics.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: August 20, 1991
    Assignee: Atochem North America, Inc.
    Inventor: Terry N. Myers
  • Patent number: 5021568
    Abstract: The present invention relates to organic chemistry. Lactam-1-acetic acid carbalkoxymethyl esters have the following general formula: ##STR1## wherein with R=H, n=1 or 3; with R=phenyl, n=1; R.sup.1 is an alkyl. A method for preparing said compounds comprises reacting lactams of the general formula: ##STR2## wherein with R=H, n=1 or 3, with R=phenyl n=1, with an alkali in a medium of aprotic solvents at a temperature of from 70.degree. to 130.degree. C., followed by the addition of an alkyl ester of a monohalcacetic acid to the resulting mixture and isolation of the desired product.The compounds according to the present invention are intermediate products in the synthesis of known biologically active substances.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: June 4, 1991
    Inventors: Alexandr G. Shipov, Evgenia P. Kramarova, Natalia A. Orlova, Jury I. Baukov, Kristap M. Ziemelis
  • Patent number: 5011941
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein n and n' are each independently integers having a value of from 1 to 25; p is an integer having a value of from 1 to 4; Y and Y' are each independently H or CH.sub.3 ; R is linear alkyl, alkenyl, or amidoalkyl having from 8 to 22 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; Z is linear alkylene having from 3 to 8 carbon atoms and is optionally substituted with lower alkyl and A.sup.- is an anion.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: April 30, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: Ratan K. Chaudhuri, David J. Tracy, Robert B. Login
  • Patent number: 5008104
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein n and n' are each independently integers having a value of from 1 to 25; p is an integer having a value of from 1 to 4; Y and Y' are each independently H or CH.sub.3 ; R is linear alkyl, alkenyl, or amidoalkyl having from 8 to 22 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; Z is linear alkylene having from 3 to 8 carbon atoms and is optionally substituted with lower alkyl and A.sup.- is an anion.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: April 16, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: Ratan K. Chaudhuri, David J. Tracy, Robert B. Login
  • Patent number: 5001113
    Abstract: Enzyme di- or tripeptides of the formula: ##STR1## and analogs thereof which inhibit renin and are useful for treating various forms of renin-associated hypertension, hyperaldosteronism and congestive heart failure; compositions containing these renin-inhibitory peptides, optionally with other antihypertensive agents; and methods of treating hypertension, hyperaldosteronism or congestive heart failure or of establishing renin as a causative factor in these problems which employ these novel peptides.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: March 19, 1991
    Assignee: Merck & Co., Inc.
    Inventors: Peter D. Williams, Daniel E. Veber
  • Patent number: 4970205
    Abstract: Invented are sulfonic acid substituted analogues of steroidal synthetic compounds, pharmaceutical compositions containing these compounds, and methods of using these compounds to inhibit steroid 5-.alpha.-reductase, including using these compounds to reduce or maintain prostate size. Also invented are intermediates used in preparing these compounds.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: November 13, 1990
    Assignee: SmithKline Beecham Corporation
    Inventors: Dennis A. Holt, Mark A. Levy, Brian W. Metcalf
  • Patent number: 4954625
    Abstract: Novel compounds of the formula: ##STR1## [wherein A is an .alpha.-amino acid residue; B is a group represented by the formula: ##STR2## wherein R.sup.4 is hydrogen, lower alkyl, aralkyl or amino-lower alkyl), whereby the linkage between the symbols A and B designates a peptide bond and the group R.sup.4 in B may be linked with A; R.sup.1 is hydrogen, lower alkyl or aralkyl; R.sup.2 is hydrogen, lower alkyl, aralkyl or acyl; X is alkylene] and salts thereof posses, for example, inhibitory activity on angiotensin converting enzyme, and are useful as an agent for diagnosis, prevention or treatment of hypertension as well as circulatory diseases such as cardiopathy and cerebral apoplexy.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: September 4, 1990
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirosada Sugihara, Kohei Nishikawa, Katsumi Ito
  • Patent number: 4943633
    Abstract: This invention relates to an improved process for the preparation of cyanoalkyl lactams by the reaction of an unsaturated nitrile with a lactam, said cyanoalkyl lactam of the formula ##STR1## wherein R is H, or methyl, R.sub.1 is H, methyl or ethyl and n is a number ranging from 2-11 and wherein each of the methylene groups may carry a lower alkyl substituent as shown. The improvement comprises: reacting said lactam with an alpha-beta unsaturated nitrile having from 3-6 carbon atoms in the presence of a catalytic amount of a diazabicycloalkene of the formula ##STR2## wherein R, R.sub.1 and n have the above meaning. Typically, acrylonitrile is reacted with .epsilon.-caprolactam in the presence of diazabicycloundecene.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: July 24, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Richard V. C. Carr, Thomas A. Johnson
  • Patent number: 4885158
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein m is an integer having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group of alkyl, alkyloxyalkyl, alkyloxyalkenyl, hydroxyalkyl, aryl, aralkyl, alkaryl, alkyl amidoalkyl, alkyl carbamoylalkyl, aryl amido alkyl and aryl carbamoyalkyl radicals, and R.sub.2 and R.sub.3, together with the quaternized nitrogen atom can form a heterocyclic radical containing from 1 to 2 heteroatoms selected from the group of nitrogen, sulfur and oxygen, in which case R.sub.1 can represent a double bond in the heterocyclic structure or can be any of the aforementioned groups for R.sub.1, R.sub.2 and R.sub.3 ; said groups R.sub.1, R.sub.2 and R.sub.3 each having from 1 to 30 carbon atoms and at least one of R.sub.1, R.sub.2 and R.sub.3 is a radical having from 8 to 30 carbon atoms when R.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 5, 1989
    Assignee: GAF Corporation
    Inventors: David J. Tracy, Thomas Rizzo, Robert B. Login
  • Patent number: 4879410
    Abstract: A process is disclosed for the preparation of aralkyl mono- and diurethanes or ureas by carbamylmethylation, or acid-catalyzed addition at a temperature of 40.degree. C. to about 100.degree. C. of formaldehyde and esters of carbamic acid to aromatic hydrocarbons. Aralkyl carbamates and ureas formed by this process can be cracked directly to produce aralkyl diisocyanates, or hydrogenated and then cracked to produce aliphatic diisocyanates, or reacted directly with polyols to produce polyurethanes by functioning as blocked isocyanates.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: November 7, 1989
    Assignee: American Cyanamid Company
    Inventors: Balwant Singh, Laurence W. Chang, William A. Henderson, Jr.
  • Patent number: 4868298
    Abstract: A continuous method for the high-yield, one-step, solvent-free manufacture of blocked polyisocyanurate compounds useful as curing agents in powder coating compositions. The preferred method of manufacture is to pre-mix a blocking agent and a polymerization catalyst (BAC mix) prior to injection with an organic isocyanate monomer having two or more isocyanate groups (herein termed a polyisocyanate) into a preheated reaction zone wherein the BAC mix and the polyisocyanate react to form the blocked polyisocyanurate compound that is obtained after discharge from the reaction zone and cooling.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Cargill, Incorporated
    Inventor: Larry F. Brinkman
  • Patent number: 4859780
    Abstract: Hydrophilic modifier monomers of the formula [X-T].sub.z 'G are disclosed wherein X is a reactive group, G is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of G, excess G valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: August 22, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Frank Molock, J. Richard Robertson, Jr., Kai C. Su
  • Patent number: 4837013
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein m is an integer having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; R.sub.4 is alkylene having from 1 to 4 carbon atoms, phenyl or naphthyl optionally substituted with lower alkyl; Y is ##STR2## wherein R.sub.6 is hydrogen or lower alkyl; R.sub.7 is alkyl of from 1 to 30 carbon atoms; R.sub.2 and R.sub.3 are each independently selected from the group of --R.sub.4 --Y--R.sub.7 alkyl, alkyleneoxyalkyl, alkylhydroxy, aryl, aralkyl, aralkenyl, alkaryl, and alkyleneamidoalkyl radicals, said groups each having from 1 to 30 carbon atoms and at least one of R.sub.7, R.sub.2 and R.sub.3 having at least 8 carbon atoms and X.sup.-- is a chloride, bromide or iodide anion. The invention also relates to the preparation and use of said quaternized compounds.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: June 6, 1989
    Assignee: GAF Corporation
    Inventors: Robert B. Login, Ratan K. Chaudhuri, David J. Tracy, Michael W. Helioff
  • Patent number: 4830851
    Abstract: A stable iodine complex formed from the association of iodine with a pyrrolidonyl surfactant and its use in therapeutic, environmental and industrial applications and particularly as low foaming disinfectants for gradual release of iodine over significantly extended periods.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: May 16, 1989
    Assignee: GAF Corporation
    Inventors: David J. Tracy, Mohamed M. Hashem, Robert B. Login
  • Patent number: 4830850
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein m and p are each integers having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; R.sub.1 is alkyl or alkenyl having from 1 to 30 carbon atoms; R.sub.2 and R.sub.3 are each independently selected from the group of --(CH.sub.2).sub.p OR.sub.1, alkyl, alkylhydroxy, aryl, aralkyl, aralkenyl, alkaryl, and alkylene amidoalkyl radicals, said R.sub.2 and R.sub.3 groups having from 1 to 30 carbon atoms and at least one of R.sub.1, R.sub.2 and R.sub.3 is a radical having from 8 to 30 carbon atoms; and X.sup.- is a chloride, bromide or iodide anion. The invention also relates to the preparation and use of said quaternized compounds.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: May 16, 1989
    Assignee: GAF Corporation
    Inventors: Robert B. Login, Ratan K. Chaudhuri, David J. Tracy, Michael W. Helioff
  • Patent number: 4769454
    Abstract: The process for the preparation of N-methylolcaprolactam through reaction of caprolactam with formaldehyde in the presence of an alkaline catalyst at elevated temperature is essentially improved when the reaction is carried out substantially solvent-free at 70.degree. to 100.degree. C. In an advantageous fashion, the alkaline catalyst used is in heterogeneous form. In a furthermore advantageous fashion, seed crystals of pure N-methylolcaprolactam are added to the reaction batch after cooling to a temperature below the melting point of pure N-methylol-caprolactam.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: September 6, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz-Ulrich Blank, Wolfgang Bauer
  • Patent number: 4760152
    Abstract: (1) Pyrrolidonyl acrylate block polymers having the formula ##STR1## wherein n has a value of 1 to 3; X and X' are dissimilar and each is hydrogen or methyl; y and z each have a value of from 1 to 40, except that at least one of y and z is greater than 1 and R is hydrogen or methyl;(2) preparation of said polymers and(3) uses of said polymers.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: July 26, 1988
    Assignee: GAF Corporation
    Inventors: David J. Tracy, Mohamed M. Hashem, Fulvio J. Vara
  • Patent number: 4755535
    Abstract: This invention provides compositions comprising a physiologically-active agent and an azacycloalkene having at least one double bond in the ring and of the general formula ##STR1## wherein X and Y, each, may represent sulfur, oxygen or two hydrogen atoms, A is a straight or branched chain, divalent aliphatic radical having from 0 to 2 double bonds; R' is selected from the group consisting of H, a lower alkyl group having 1-4 carbon atoms, phenyl, lower alkyl or halogen substituted phenyl, acetamido, halogen, piperidinyl, lower alkyl or halogen substituted piperidinyl, carbalkoxy, carboxamide, and alkylformyl; m is 3-7; q is 2m-2x, wherein x equals the number of double bonds in the lactam ring and may be 1, 2 or 3; and R is --CH.sub.3, ##STR2## wherein R" is H or halogen in an amount effective to enhance the penetration of the physiologically-active agent through the skin or other membrane of the body of an animal.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: July 5, 1988
    Assignee: Nelson Research & Development Co.
    Inventors: Gevork Minaskanian, James V. Peck
  • Patent number: 4732990
    Abstract: The invention relates primarily to quaternized compounds having the formula ##STR1## wherein m is an integer having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group of alkyl, alkyl oxide, alkylhydroxy, alkoxy, aryl, aralkyl, alkaryl, and alkyl amidoalkyl radicals, said groups each having from 1 to 30 carbon atoms and at least one of R.sub.1, R.sub.2 and R.sub.3 is radical having from 8 to 30 carbon atoms; and X.sup.- is a chloride, bromide or iodide anion. The invention also relates to the preparation and use of said quaternized compounds.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: March 22, 1988
    Assignee: GAF Corporation
    Inventors: Robert B. Login, Ratan K. Chaudhuri, David J. Tracy, Michael W. Helioff
  • Patent number: 4620949
    Abstract: Amino acid derivatives are synthesized by reacting paraformaldehyde, cyclic amides and synthesis gas with a bimetallic catalyst comprising a rhodium-containing compound and a cobalt-containing compound, optionally in the presence of a solvent at a pressure of at least 500 psi and a temperature of at least 50.degree. C. The novel amino acid products may be hydrolyzed to amino dicarboxylic acids or used as monomers to polyamides.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: November 4, 1986
    Assignee: Texaco Inc.
    Inventor: Jiang-Jen Lin