Patents by Inventor Ernst Roos
Ernst Roos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4699972Abstract: Aliphatic polyesters containing sulphur, which contain the sulphur as structural units in the form of sulphide or disulphide groups in both the acid component and the diol component, a process for the preparation of these polyesters, and also polymers containing these polyesters.Type: GrantFiled: August 22, 1986Date of Patent: October 13, 1987Assignee: Bayer AktiengesellschaftInventors: Heinz Hammer, Herbert Eichenauer, Ernst Roos, Eberhard Jurgens
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Patent number: 4678777Abstract: An arthropodicidal composition comprising an arthropodicidally effective amount of an arthropodicidally active compound and a synergistically effective amount of at least one compound of the formula ##STR1## in which A is amino, alkylamino, dialkylamino or N-alkyl-N-arylamino, or an optionally substituted alkyl, alkenyl, alkoxy, alkenyloxy, alkylthio, aralkyl, aralkoxy, phenyl, phenoxy or phenylthio radical,R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 each independently is hydrogen, or an optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl or alkylthioalkyl radical, or is halogen, nitro or dialkylaminoalkyl, or is optionally substituted phenyl or benzyl, or two of the radicals R.sup.1 to R.sup.8, together with the carbon atom or atoms to which they are bonded form an optionally substituted monocyclic or bicyclic ring andn and m each independently is 0 or 1.Type: GrantFiled: August 6, 1985Date of Patent: July 7, 1987Assignee: Bayer AktiengesellschaftInventors: Bernd-Wieland Kruger, Hellmut Hoffmann, Ernst Roos, Wolfgang Behrenz
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Patent number: 4521542Abstract: The use of arylsulphonyl hydrazones corresponding to the following general formula:Ar (SO.sub.2 --NH--N.dbd.R).sub.x (I)whereinAr represents a benzene, naphthalene, diphenyl, diphenyl ether, diphenyl sulphone or diphenylene oxide radical which may be substituted by methyl and/or chlorine;R represents the radical of an aldehyde or ketone without the carbonyl oxygen atom; andx represents 1 or 2;as blowing agents for the production of cellular or porous plastics articles.Type: GrantFiled: June 11, 1984Date of Patent: June 4, 1985Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Klaus Kircher
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Patent number: 4476053Abstract: Surface-active azo compounds corresponding to the following general formula ##STR1## in which ##STR2## R represents C.sub.1 -C.sub.4 -alkyl, R.sup.1 represents the residue diminished by the isocyanate groups of an aliphatic, aromatic or cycloaliphatic diisocyanateR.sup.2 represents C.sub.5 -C.sub.12 -alkylene, phenyleneW represents --COO.sup.(-), --SO.sub.3.sup.(-) andK represents Na.sup.(+), K.sup.(+), NH.sub.4.sup.(+), and their use in the emulsion polymerization of one or more olefinically unsaturated monomers.Type: GrantFiled: May 3, 1982Date of Patent: October 9, 1984Assignee: Bayer AktiengesellschaftInventors: Adolf Schmidt, Ernst Roos
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Patent number: 4474684Abstract: Elastomers with corrosion-inhibiting properties, characterized by containing a reaction product of an amine of the formula: ##STR1## wherein X represents a number from 5 to 30,R denotes hydrogen or C.sub.1 -C.sub.6 alkyl, andR.sub.1 denotes C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.6 cycloalkyl or C.sub.7 -C.sub.8 aralkyl,with an aromatic carboxylic acid and optionally a fatty acid.Type: GrantFiled: November 17, 1982Date of Patent: October 2, 1984Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Sigurd Behr
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Patent number: 4472549Abstract: Condensation products of a diol with aldehydes corresponding to the following formula: ##STR1## in which R represents hydrogen or methyl, the methyl group being in the 3- and/or 4-position, and Y represents the number 0 or 1, a process for its production characterized in that diols are reacted with aldehyde compounds in known manner, and its use as an antiozonant for rubber.Type: GrantFiled: August 13, 1982Date of Patent: September 18, 1984Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Werner Jeblick, Lothar Ruetz
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Patent number: 4452737Abstract: The invention relates to surface-active azo compounds obtainable by reacting azo compounds corresponding to the following general formula (I): ##STR1## in which X and Y are the same or different and represent ##STR2## and R represents C.sub.1 -C.sub.4 -alkyl, with at least one C.sub.10 -C.sub.18 -paraffin disulphonic acid dihalide in aqueous medium or a solvent or solvent mixture which is inert to the reactants under the process conditions and in which the reactants are at least partly soluble, at temperatures in the range of from 0.degree. to +.degree. C. and in the presence of a base in a quantity substantially equivalent to the hydrolysable halogen, the reaction being accompanied by the elimination of hydrogen halide. The new azo compounds give low electrolyte, low-foam dispersions in emulsion and dispersion polymersation.Type: GrantFiled: May 3, 1982Date of Patent: June 5, 1984Assignee: Bayer AktiengesellschaftInventors: Adolf Schmidt, Ernst Roos
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Patent number: 4427817Abstract: The use of open-chain acetals or ketals corresponding to the following general formula ##STR1## as non-discoloring anti-ozonants for natural and/or synthetic rubber.Type: GrantFiled: April 6, 1982Date of Patent: January 24, 1984Assignee: Bayer AktiengesellschaftInventors: Dieter W. Bruck, Werner Jeblick, Heinrich Konigshofen, Ernst Roos, Lother Ruetz
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Patent number: 4340695Abstract: A vulcanization system consisting of(a) 20-50 parts by weight of sulphur or 20-50 parts by weight of a sulphur donor,(b) 20-50 parts by weight of an accelerator of the mercapto or sulphenamide group,(c) 0-10 parts by weight of a conventional accelerator additive, and(d) 20-50 parts by weight of a compound corresponding to the general formula (i): ##STR1## wherein R.sub.1 to R.sub.5 are identical or different and denote hydrogen, halogen, nitro, cyano, CF.sub.3, CCl.sub.3, carboxyl, an alkoxy group containing 1-4 C-atoms in the alkyl part, or a C.sub.1 -C.sub.4 alkyl group but the groups R.sub.1 -R.sub.5 must not all be hydrogen;x represents 1-4, preferably 2-3,y represents 0 or 1, andZ denotes divalent groups such as ##STR2## C.sub.1 -C.sub.12 alkylene, C.sub.4 -C.sub.12 cycloalkylene, C.sub.6 -C.sub.10 arylene or C.sub.8 -C.sub.12 arylalkylene, andR.sub.6 denotes the group corresponding to the formula: ##STR3## wherein R.sub.1 -R.sub.5 have the meaning indicated above and may all be hydrogen;C.sub.1 -C.sub.Type: GrantFiled: April 8, 1981Date of Patent: July 20, 1982Assignee: Bayer AktiengesellschaftInventors: Rudiger Schubart, Ulrich Eholzer, Theo Kempermann, Ernst Roos
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Patent number: 4306992Abstract: A mixture comprising sulphur or a sulphur donor, a mercapto- or sulfenamide vulcanization accelerator, a compound containing a thiophenyl radical and a standard auxiliary accelerator is used as a vulcanization system for natural or synthetic rubber.Type: GrantFiled: May 5, 1980Date of Patent: December 22, 1981Assignee: Bayer AktiengesellschaftInventors: Rudiger Schubart, Ulrich Eholzer, Theo Kempermann, Ernst Roos
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Patent number: 4280004Abstract: A mixture of azodicarbonamide and an .alpha.-amidosulphone corresponding to the general formula: ##STR1## in which R represents hydrogen, a C.sub.1 -C.sub.4 -alkyl residue and/or halogen,x represents numbers from 0 to 5,y represents numbers from 1 to 3, corresponding to the valency of R.sub.1,R.sup.1 represents an aromatic carboxylic acid residue or sulphonic acid residue with 6 carbon atoms, which is optionally substituted once or several times by halogen, C.sub.1 -C.sub.4 alkyl residues, C.sub.1 -C.sub.4 alkoxy residues, nitro and/or cyano, or represents an aliphatic carboxylic acid residue or a sulphonic acid residue with 1-4 carbon atoms, a carbonic acid residue, a thiocarbonic acid residue or a phosphoric acid residue which, corresponding to the numerical value of y, contains 0-2 phenoxy residues or C.sub.1 -C.sub.4 alkoxy residues optionally substituted with C.sub.1 -C.sub.4 alkyl or halogen,R.sup.2 represents R.sup.1, or hydrogen, a C.sub.1 -C.sub.4 alkyl residue, a C.sub.5 -C.sub.Type: GrantFiled: September 22, 1980Date of Patent: July 21, 1981Assignee: Bayer AktiengesellschaftInventors: Werner Jeblick, Ernst Roos, Theo Kempermann, Manfred Abele
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Patent number: 4263165Abstract: A blowing agent combination comprising azodicarbonamide, zinc oxide and a benzenethiol sulphonic acid derivative having the general formula (I) ##STR1## wherein R is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl radical and/or a chlorine atom,X is a number from 1 to 5, andR' is a C.sub.1 -C.sub.4 alkyl radical, a C.sub.5 -C.sub.6 cycloalkyl radical or a C.sub.7 -C.sub.8 arylalkyl radical each of these radicals being optionally substituted by from 1 to 3 C.sub.1 -C.sub.4 alkyl radicals, from 1 to 5 chlorine atoms and/or a carboxylic acid C.sub.1 -C.sub.4 alkyl ester radical, or a radical having one of the general formulae (11a), (11b), (11c) or (11d). ##STR2## in which y is a number from 0 to 3,R" is a C.sub.1 -C.sub.6 alkylene radical or a xylylene radical which is optionally substituted by from 1 to 4 methyl radicals and/or from 1-4 chlorine atoms and R and X are as defined above;may be used as blowing agents.Type: GrantFiled: May 7, 1980Date of Patent: April 21, 1981Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Werner Jeblick, Helmut Hurnik
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Patent number: 4256636Abstract: An azo di-isobutyric acid-(N,N'-hydroxyalkyl)-amidine corresponding to the formula (I): ##STR1## in which R and R', which may be the same or different, represent linear or branched alkylene radicals containing from 2 to 4 carbon atoms, andX represents R'-OH or H.They may be produced by reacting an azo-di-isobutyric acid iminoalkyl ether containing from 1 to 4 carbon atoms in the alkyl group with at least one mono-alkanolamine containing from 2 to 4 carbon atoms or with a mixture of at least one monoalkanolamine and at least one dialkanolamine each containing from 2 to 4 carbon atoms in an alkanol radical, the molar ratio of monoalkanolamines to dialkanolamines in the mixture amounting to substantially 1:1, in substantially equivalent quantitative ratios at a temperature in the range of from 0.degree. to 50.degree. C. The amidines may be used as polymerization initiators, as cross-linking agents and as blowing agents in the production of foams.Type: GrantFiled: September 17, 1979Date of Patent: March 17, 1981Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Herbert Bartl, Klaus Schuster, Adolf Schmidt
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Patent number: 4223147Abstract: The invention relates to new methylol derivatives of 2,2,6,6-tetraalkylpiperidines, to their production and to their use as chemically attached stabilizers for polymers containing reactive OH- and NH-groups.Type: GrantFiled: September 19, 1977Date of Patent: September 16, 1980Assignee: Bayer AktiengesellschaftInventors: Harald Oertel, Paul Uhrhan, Reinhard Lantzsch, Ernst Roos, Hans Schroer, Dieter Arlt
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Patent number: 4216158Abstract: A process for preparing a 2,6-di-tert-alkyl-4-alkylidene-2,5-cyclohexadien-one which comprises contacting a bis-(3,5-di-tert.-alkyl-4-hydroxybenzyl)sulphide of the formula ##STR1## wherein R.sup.1 denotes a tertiary alkyl group andR.sup.2 denotes hydrogen, a straight or branched alkyl, cycloalkyl, cycloalkenyl, aralkyl or aryl group with lead or mercury in the oxide, hydroxide, carbonate, acetate or other basic reacting salt form at an elevated temperature in an inert solvent.Type: GrantFiled: July 13, 1978Date of Patent: August 5, 1980Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Erika Hugl
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Patent number: 4178279Abstract: The invention is related to modified polyurethanes which have a permanent, wash-fast, acidresistant, dry cleaning-resistant and solvent-resistant stabilization based on 2,2,6,6-tetraalkyl-piperidine light protective agents. These stabilizers are an integral constituent of the polyurethanes, that is to say they take part in the polyurethane synthesis by the reaction of an H-active reactive group (for example NH.sub.2, NH-alkyl, CO--NH--NH.sub.2, NH--CO--NH--NH.sub.2, OH or some other H-active group) of the 2,2,6,6-tetraalkyl-piperidine derivatives with isocyanate groups of polyisocyanates or isocyanate prepolymers.Type: GrantFiled: September 19, 1977Date of Patent: December 11, 1979Assignee: Bayer AktiengesellschaftInventors: Paul Uhrhan, Harald Oertel, Reinhard Lantzsch, Ernst Roos, Dieter Arlt
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Patent number: 4153596Abstract: This invention relates to permanently stabilized polymers containing substituted piperidine derivatives chemically attached to the polymer molecule through O- or N-atoms. Compounds based on 2,2,6,6-tetraalkyl piperidines have now been found which, on the one hand, have a very high stabilizing activity and, on the other hand, contain one or more reactive groups through which they are able to react with the polymers to be stabilized. Stabilized polymers, preferably polyurethane elastomer filaments, films and coatings with a permanent washing-resistant, boiling resistant, acid-resistant, dry-cleaning-resistant and solvent-resistant stabilization based on 2,2,6,6-tetraalkyl piperidine light stabilizers are thus obtained.Type: GrantFiled: September 19, 1977Date of Patent: May 8, 1979Assignee: Bayer AktiengesellschaftInventors: Harald Oertel, Paul Uhrhan, Reinhard Lantzsch, Ernst Roos, Dieter Arlt, Hans Schroer
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Patent number: 4147722Abstract: Mono-, di- and tri-(chloro sulphenyl methyl)-perchlorobenzenes are produced by chlorinating mercapto methyl perchlorobenzenes of the formula ##STR1## X BEING 1 TO 3 AND Y 6-X. The new compounds can be used as starting materials for producing compounds of the sulphene amide type or may be added to rubber for crosslinking purposes.Type: GrantFiled: May 13, 1975Date of Patent: April 3, 1979Assignee: Bayer AktiengesellschaftInventor: Ernst Roos
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Patent number: 4145512Abstract: According to the invention there are obtained modified polyurethanes which have a durable, wash-fast, acid-resistant, cleaning-resistant and solvent-resistant stabilization on the basis of 2,2,6,6-tetraalkyl-piperidine light protective agents. The stabilizers are integral constituents of the polyurethanes, that is to say they are built into the polyurethane chain by a chain lengthening reaction in which two H-active reactive groups (preferably from the series of primary or secondary amino groups, carboxylic acid hydrazide, carbazic ester or semicarbazide groups) of a 2,2,6,6-tetraalkyl piperidine derivative react with isocyanate groups of polyisocyanates or isocyanate prepolymers, optionally in the presence of the usual chain lengthening agents.Type: GrantFiled: September 19, 1977Date of Patent: March 20, 1979Assignee: Bayer AktiengesellschaftInventors: Paul Uhrhan, Harald Oertel, Reinhard Lantzsch, Ernst Roos, Dieter Arlt
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Patent number: 4116932Abstract: The invention relates to a synthetic polymer composition stabilized against light, heat and atmospheric influences comprising a polymer and from 0.01 to 10% by weight based on the quantity of the synthetic polymer, of a mixture of .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-m-diisopropyl benzene and .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-p-diisopropyl benzene, the mixture containing at least 20% by weight of the m-compound. The stabilized synthetic polymer compositions are used in various forms, e.g. in the form of fibres, filaments, yarns, sheetings, films, foils, latex, foam or coatings.Type: GrantFiled: May 20, 1976Date of Patent: September 26, 1978Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Harald Oertel, Ernst Roos