Patents by Inventor Klaus Wunderlich
Klaus Wunderlich 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: 4446067Abstract: Dyestuffs of the formula ##STR1## wherein D, R, R.sub.1 and R.sub.2 have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.Type: GrantFiled: October 30, 1980Date of Patent: May 1, 1984Assignee: Bayer AktiengesellschaftInventors: Horst Jager, Klaus Wunderlich
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Patent number: 4443369Abstract: Sulphur dyestuffs which can be obtained by sulphurizing, in a manner which is in itself known, the residual mixtures obtained on dinitrating anthraquinone or on dinitrating by-products from the preparation of 1-nitroanthraquinone and partially isolating 1,5- and 1,8- and, if appropriate, 1,6- and 1,7-dinitroanthraquinones, optionally after prior reduction and/or hydroxylation and/or introduction of nitro groups, and their use in dyeing cellulose or material containing cellulose.Type: GrantFiled: July 20, 1981Date of Patent: April 17, 1984Assignee: Bayer AktiengesellschaftInventors: Helmut Seidler, Manfred Soll, Klaus Wunderlich
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Patent number: 4405248Abstract: In an advancing device for the motorized vertical displacement of a record carrier in an electrically driven office machine, which device includes an operating element mounted for movement in either one of two directions from a zero position, and members responsive to movement of the operating element in either one of its two directions for displacing such carrier in a respective vertical direction corresponding to the direction of movement of the operating element, the members are made to be responsive to movement of the operating element in at least one direction from the zero position for advancing the record carrier at a rate which increases as the extent of displacement of the operating element from the zero position increases.Type: GrantFiled: October 16, 1981Date of Patent: September 20, 1983Assignee: Olympia Werke AGInventors: Klaus Wunderlich, Udo Schlegel, Heinz Ricke
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Patent number: 4400504Abstract: The invention relates to new dioxazine reactive dyestuffs of the formula ##STR1## a process for their preparation and their use in dyeing and printing fibre materials which contain hydroxyl groups or amide groups.In formula (I):D denotes a radical of the dioxazine system of the formula ##STR2## the radicals Y, Z, A, X.sub.1 and X.sub.2 as well as m and n having the meaning indicated in the text of the application.The invention further relates to a process for the preparation of these new dioxazine reactive dyestuffs as well as their use in dyeing and printing fibre materials which contain hydroxyl groups or amide groups.Type: GrantFiled: November 10, 1981Date of Patent: August 23, 1983Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus Wunderlich
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Patent number: 4377688Abstract: Dyestuffs of the formula ##STR1## wherein X, R, R.sub.1, R.sub.2 and R.sub.3 have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.Type: GrantFiled: December 6, 1979Date of Patent: March 22, 1983Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus Wunderlich, Klaus von Oertzen
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Patent number: 4355163Abstract: Dyestuffs of the formula ##STR1## wherein X, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.Type: GrantFiled: November 20, 1979Date of Patent: October 19, 1982Assignee: Bayer AktiengesellschaftInventors: Klaus von Oertzen, Wolfgang Harms, Klaus Wunderlich
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Patent number: 4332938Abstract: Dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing. The dyeings obtained are distinguished by good fastness to light and wet processing.Type: GrantFiled: November 30, 1979Date of Patent: June 1, 1982Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus Wunderlich, Klaus von Oertzen
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Patent number: 4299966Abstract: 4,4',7,7'-Tetrachlorothioindigo can be obtained in a form directly suitable for use as a pigment if the oxidation of 3-hydroxy-4,7-dichloro-1-thionaphthene is performed in an alkaline medium in the presence of oxygen or an oxygen-containing gas.Type: GrantFiled: June 27, 1980Date of Patent: November 10, 1981Assignee: Bayer AktiengesellschaftInventors: Hans-Samuel Bien, Werner Beinert, Klaus Wunderlich
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Patent number: 4294580Abstract: Dyestuffs of the formula ##STR1## wherein Fb, W, R.sub.1, R.sub.2, R.sub.3, n and m have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or nitrogen, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for washfast dyeing and printing natural or regenerated cellulose.The dyeings obtained are distinguished by good fastness to wet processing.Type: GrantFiled: December 31, 1979Date of Patent: October 13, 1981Assignee: Bayer AktiengesellschaftInventors: Hermann Henk, Klaus Wunderlich, Peter Wild
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Patent number: 4286962Abstract: Dyestuffs of the formula ##STR1## wherein the substituents have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.The dyeings obtained with the dyestuffs are distinguished by good to very good fastness properties, in particular by outstanding fastness to wet processing.Type: GrantFiled: December 31, 1979Date of Patent: September 1, 1981Assignee: Bayer AktiengesellschaftInventors: Volker Ehrig, Manfred Groll, Klaus Wunderlich
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Patent number: 4273553Abstract: Dyestuffs of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, m, n, p and X have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and woven fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose in dyeings and prints which are fast to washing. Blue dyeings and prints which are fast to light and wet processing are obtained.Type: GrantFiled: October 19, 1979Date of Patent: June 16, 1981Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Horst Jager, Klaus von Oertzen, Klaus Wunderlich
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Patent number: 4268267Abstract: Dyestuffs of the formula ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Ar, R.sub.5, R.sub.6, a, b and c have the meaning indicated in the description, and their use for dyeing and printing materials which contain hydroxyl or amide groups, such as textile fibres, filaments and fabrics made of wool, silk and synthetic polyamide and polyurethane fibres and for wash-fast dyeing and printing of natural or regenerated cellulose.The invention relates to new water-soluble phthalocyanine dyestuffs which, in the form of their free acids, have the formula ##STR2## wherein Pc is the radical of a copper phthalocyanine or nickel phthalocyanine,R.sub.1 and R.sub.2 are hydrogen or optionally substituted alkyl, or R.sub.1 +R.sub.2 together with N are a 5-membered or 6-membered heterocyclic ring,R.sub.3 and R.sub.4 are hydrogen or optionally substituted alkyl,Ar is arylene substituted by SO.sub.3 H or/and COOH and optionally by other atoms or groups of atoms,R.sub.5 and R.sub.Type: GrantFiled: October 19, 1979Date of Patent: May 19, 1981Assignee: Bayer AktiengesellschaftInventors: Karl H. Duchardt, Manfred Groll, Klaus Wunderlich
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Patent number: 4267107Abstract: Phthalocyanine reactive dyestuffs of the formula ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, B, R.sub.6, R.sub.7, R.sub.8, a, b and c have the meaning indicated in the description,and their use for dyeing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile materials made of natural and regenerated cellulose and furthermore made of wool, silk and synthetic polyamide fibers and polyurethane fibers. The resulting dyeings are distinguished by excellent fastness to wet processing.Type: GrantFiled: May 29, 1979Date of Patent: May 12, 1981Assignee: Bayer AktiengesellschaftInventors: Manfred Groll, Klaus Wunderlich
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Patent number: 4260778Abstract: Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above andX designates halogen, such as bromine and, preferably, chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and SO.sub.2 and the resulting intermediate product is then oxidized in a manner which is in itself known, if appropriate after first being isolated, and the mixture is worked up to give the compounds of the formula (I).Type: GrantFiled: May 21, 1979Date of Patent: April 7, 1981Assignee: Bayer AktiengesellschaftInventors: Detlef-Ingo Schutze, Klaus Wunderlich
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Patent number: 4259248Abstract: A process has been developed for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone by nitration with nitric acid in the presence of sulphuric acid with heating wherein anthraquinone, 1-nitroanthraquinone or a mixture of them is treated with about 1.5 to about 2.5 times the amount by weight of nitric acid, relative to the feed material, in the presence of about 0.75 times to twice the amount by weight, relative to nitric acid, of sulphuric acid, the temperature first being kept in the range from room temperature to about 50.degree. C. until at least 50% of the starting material or materials has been dinitrated, then adjusting the temperature to about 50.degree. C. to about 70.degree. C. to complete the dinitration.Type: GrantFiled: June 18, 1979Date of Patent: March 31, 1981Assignee: Bayer AktiengesellschaftInventors: Walter Hohmann, Klaus Wunderlich
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Patent number: 4255325Abstract: Reactive dyestuffs of the formulaD-(T).sub.mwhereinD=the radical of an organic dyestuff,m=1-4 andT= ##STR1## wherein X and Y=a direct bond or a bridge member,W= ##STR2## acyl=an acyl radical and R.sub.1 -R.sub.3 =H, alkyl or aralkyl,the radical T being bonded, via X, to a C atom of an aromatic-carbocyclic or aromatic-heterocyclic ring of the chromophore and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen. The dyeings obtained are distinguished by good fastness properties, in particular excellent fastness to wet processing.Type: GrantFiled: November 14, 1978Date of Patent: March 10, 1981Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus Wunderlich, Klaus van Oertzen
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Patent number: 4242259Abstract: Dyestuffs of the formula ##STR1## wherein D, W, R.sub.1, R.sub.2, R.sub.3, x and D' have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile materials of natural and regenerated cellulose, and also of wool, silk, and synthetic polyamide and polyurethane fibres. The resulting dyeings are distinguished by good fastness properties.Type: GrantFiled: March 20, 1979Date of Patent: December 30, 1980Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus von Oertzen, Klaus Wunderlich
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Patent number: 4214082Abstract: Dyestuffs of the formula ##STR1## wherein S, m, X, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and n have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile materials of natural and regenerated cellulose, and furthermore of wool, silk and synthetic polyamide and polyurethane fibres. The resulting dyeings are distinguished by good fastness to light and wet processing.Type: GrantFiled: April 20, 1979Date of Patent: July 22, 1980Assignee: Bayer AktiengesellschaftInventors: Wolfgang Harms, Klaus Wunderlich, Klaus von Oertzen
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Patent number: 4213909Abstract: A process for the preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid or an alkali metal salt thereof by converting 1-aminoanthraquinone (which can be obtained by reduction of 1-nitroanthraquinone with sodium sulfide and/or sodium bisulfide or reaction of the 1-nitroanthraquinone with ammonia) by contacting the same with oleum at a temperature in the range of 90.degree. to 150.degree. C. optionally in the presence of an alkali metal sulfate and thereafter treating the so-sulfonated composition with bromine at a temperature in the range of from 60.degree. to 100.degree. C. 1-amino-4-bromoanthraquinone-2-sulfonic acid or an alkali metal salt thereof can be precipitated from the reaction mixture either by adjusting the sulfuric acid concentration thereof to 60 to 85 percent by weight or by stirring the reaction mixture into water, which optionally contains an alkali metal sulfate.Type: GrantFiled: September 5, 1978Date of Patent: July 22, 1980Assignee: Bayer AktiengesellschaftInventors: Gerhard Berg, Walter Hohmann, Karl-Julius Reubke, Klaus Wunderlich
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Patent number: 4206306Abstract: Reactive dyestuffs are disclosed having the formula ##STR1## in which D is the radical of an organic nonanthraquinoid dyestuff; R is hydrogen or lower alkyl; R.sub.1 is amino or substituted amino with substituents attached by a single bond, optionally etherified hydroxy, optionally etherified mercapto or an optionally substituted hydrocarbon radical; Q is an alkylene, aralkylene, arylene, --CO-- or --SO-- which is directly linked to a carbon atom of the ring of the dyestuff D; n is the number 0 or 1 and F is a fluoro substituent. The group --N(R) is directly linked to a carbon atom of the triazine ring and on the other side, the group --N(R) is linked to a carbon atom of the ring of the dyestuff D either directly (if n=0) or (if n=1) via one of the bridge members mentioned above. These dyestuffs are primarily suitable for dyeing of textile materials containing hydroxyl or nitrogen such as natural and regenerated cellulose, wood, silk, polyamide and polyurethane.Type: GrantFiled: January 23, 1978Date of Patent: June 3, 1980Assignee: Bayer AktiengesellschaftInventors: Hans-Samuel Bien, Erich Klauke, Klaus Wunderlich