Patents by Inventor Eugen Konrad

Eugen Konrad 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).

  • Patent number: 4822598
    Abstract: The invention relates to cosmetic agents for treating of hairs or the skin which is characterized by a content of novel quaternary chitosan derivatives of the formulaHO[C.sub.6 H.sub.11-m NO.sub.4 (R.sup.1).sub.m (R.sup.2).sub.n (R.sup.3).sub.q ].sub.p H(m=0-0.5; n=0-6; q=0.005-3.0; p=10-50,000; R.sup.1 =acetyl; R.sup.2 =--CH.sub.2 CH(OH)--CH.sub.2 --O--, --CH.sub.2 --CH(CH.sub.2 OH)--O-- or --CH(CH.sub.2 OH)--CH.sub.2 --O--; R.sup.3 = ##STR1## with R.sup.4 =C.sub.1 - to C.sub.4 -alkyl and X=Cl, Br, or CH.sub.3 SO.sub.4.It relates in furtherance to the novel quaternary chitosan derivatives as well as processes for making the same. These chitosan derivatives have a good substantivity, among others, to hair keratin and show hair strengthening and hair conditioning characteristics.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: April 18, 1989
    Assignee: Wella Aktiengesellschaft
    Inventors: Gunther Lang, Harald Wendel, Eugen Konrad
  • Patent number: 4797130
    Abstract: Oxidative hair dye composition based on 4-amino-2-aminomethyl-phenols of the general formula (I) ##STR1## or its salts as developer substances, wherein R.sup.1 and R.sup.2 represent independently of one another hydrogen, alkyl, hydroxyalkyl, aminoalkyl, mono- or dialkylaminoalkyl, acylaminoalkyl, aryl- or alkylsulfonylaminoalkyl, carbamindoalkyl, acyl, aryl- or alkylsulfonyl or carbomoyl--wherein the alkyl radical has 1 to 4 carbon atoms in each case--or a heterocyclic, non-aromatic five- or six-membered ring is formed by means of R.sup.1 and R.sup.2 which can have an oxo group in addition.The subject matter of the application is also the new developer substances of the general formula (XII) ##STR2## wherein R.sup.a equals hydrogen, alkyl, hydroxyalkyl, aminoalky, mono- or dialkylaminoalky, acylaminoalkyl, aryl- or alkylsulfonylaminoalkyl, carbamoyl, carbamido-alkyl, acyl, aryl- or alkylsulfonyl--wherein the alkyl radicals have 1 to 4 carbon atoms in each instance--and R.sup.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: January 10, 1989
    Assignee: Wella Aktiengesellschaft
    Inventors: Thomas Clausen, Eugen Konrad
  • Patent number: 4780310
    Abstract: Cosmetic compositions are disclosed, for the treatment of skin or hair, with a content of new N-hydroxypropyl-chitosan derivatives, composed of (a) 4 to 40 Mol-% units of Formula (I) ##STR1## and (b) 60 to 96 Mol-% units of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are the same or different and are each hydrogen or the group ##STR3## with n being equal to an integer from 1 to 5, with the proviso that in at least 50% of the units of (II), R.sup.1 and R.sup.2 are not simultaneously hydrogen, or the salts thereof; along with new N-hydroxypropyl-chitosan derivatives and their salts as well as a process for the production of these new compounds from propylene oxide and chitosan.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: October 25, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Guther Lang, Gerhard Maresch, Harald Wendel, Eugen Konrad, Hans-Rudi Lenz, Jurgen Titze
  • Patent number: 4772690
    Abstract: Cosmetic compositions are disclosed for the treatment of hair or skin, characterized by a content of new quaternary chitosan derivatives of the formula ##STR1## Also disclosed are the new quaternary chitosan derivatives per se as well as processes for their preparation. The chitosan derivatives have a good substantivity, particularly to hair keratin, and prove to have hair strengthening and hair conditioning characteristics.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: September 20, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Gunther Lang, Harald Wendel, Eugen Konrad
  • Patent number: 4772689
    Abstract: Cosmetic compositions are disclosed for the treatment of hair or skin, characterized by a content of new quaternary chitosan derivatives of the formulaHO[C.sub.6 H.sub.11-m NO.sub.4 (R.sup.1).sub.m (R.sub.2).sub.n (R.sup.3).sub.q ].sub.p H (1)(m=0-0.5; n=0.01-6; q=0.005-3; p=10-50,000 ##STR1## Also disclosed are the new quaternary chitosan derivatives per se as well as processes for their preparation. The chitosan derivatives have a good substantivity, particularly to hair keratin, and prove to have hair strengthening and hair conditioning characteristics.
    Type: Grant
    Filed: January 14, 1986
    Date of Patent: September 20, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Gunther Lang, Harald Wendel, Eugen Konrad
  • Patent number: 4755188
    Abstract: A composition and process are disclosed for oxidative coloring of hair on the basis of at least one substituted phenol of the general formula ##STR1## whereby R.sub.1 represents a hydroxy alkyl group with 1 to 4 carbon atoms and R.sub.2 a hydrogen atom or alkyl group with 1 to 4 carbon atoms, or the phenolate thereof, as a coupler substance. The inventive coupler substance, of which 2-hydroxy-methyl-5-methyl-phenol and 3-(.beta.-hydroxy ethyl)-6-methyl-phenol are preferred, should be present in a concentration of about 0.01 to 3.0% by weight, in particular 0.1 to 2.0% by weight. The described coupler substances are active as blue couplers. The obtained color shades are stable, resistant to wear and very well reproducible. They have very favorable characteristics with respect to toxicology and dermatology and do not give the colored hair an unpleasant, penetrating cresolic aroma.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: July 5, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Hans-Jurgen Braun, Herbert Mager
  • Patent number: 4754069
    Abstract: Novel 2-alkyl sulfonyl ethyl-1,4-diaminobenzenes of formula 1 ##STR1## wherein R denotes CH.sub.3 or C.sub.2 H.sub.5 and the salts thereof, a process for making the compositions of formula I as well as compositions for the oxidative dyeing of human hair upon the basis of a developing substance-coupler substance-combination with a content of a composition of formula I as developing substance. The well water soluble developing substances of the formula I result in very natural appearing blond to brown color shades in combination with the coupler substances resorcinol, 4-chororesorcinol,4,6-dichlororesorcinol, 4-hydroxy-1,2-methylenedioxybenzene and 4-amino-1,2-methylenedioxybenzene.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: June 28, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Hans-Jurgen Braun, Eugen Konrad, Herbert Mager
  • Patent number: 4752467
    Abstract: The subject matter of the invention is an agent and a method for improving the condition of hair on the basis of a combination of 0.1 to 25.0% by weight of trimethyl ammonia acetate betaine of the formula (CH.sub.3).sub.3 N.sup..sym. --CH.sub.2 --COO.sup..crclbar. and 0.1 to 10.0% by weight of at least one aliphatic organic acid as a hair conditioning component. Preferred forms of preparations are a hair conditioning rinse, a hair conditioning emulsion, a hair treatment kit, or a hair strengthener.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: June 21, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Herbert Mager, Dietrich Hoch
  • Patent number: 4725282
    Abstract: Oxidative dyeing of human hair upon the basis of a carrier and a dye mixture dissolved therein, whereby the carrier is made from(1) 16 to 30% by weight of a mixture of(a) 0.2-5.0% by weight of at least one physiologically harmless water soluble inorganic salt,(b) 1.4-5.0% by weight sodium lauryl alcohol diglycol ether sulfate,(c) 0.5-6.0% by weight coconut oil acid diethanol amide,(d) 4.0-10.0% by weight of a mixture consisting of60 to 80 parts by weight cetyl stearyl alcohol10 to 30 parts by weight glycerin-mono-di-stearate and0 to 20 parts by weight wool wax alcohol as well as(e) 0.1-2.0% by weight quaternized homopolymerisate of dimethyl amino ethyl methacrylate,(2) 56 to 83% by weight of water,(3) 0.1 to 5.0% by weight ammonia,(4) 0 to 5% by weight aliphatic alcohol,(5) 0 to 1% by weight perfume oil and(6) 0 to 0.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: February 16, 1988
    Assignee: Wella Aktiengesellschaft
    Inventors: Dietrich Hoch, Eugen Konrad, Gilbert Pasquier, Herbert Mager
  • Patent number: 4713080
    Abstract: A method and composition are disclosed for the oxidative coloration of hair, based upon a developer substance-coupler substance combination, employing as coupler substance at least one 2,6-diamino-pyridine derivative according to Formula I ##STR1## in which R.sup.1 and R.sup.2 are the same or different and are each CH.sub.3 or C.sub.2 H.sub.5 and R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl, also in the form of the physiologically compatible salts. The coupler substance, preferably 2,6-diamino-3,5-dimethoxy-pyridine, 2,6-diamino-3,5-diethoxy-pyridine and 2-amino-6-(2'-hydroxyethyl)amino-3,5-dimetnoxy-pyridine, should be present in the composition in a concentration from 0.01 to 3.0% by weight, preferably from 0.1 to 2.0% by weight. The coupler substance according to Formula I is storage resistant, well soluble in water and possesses favorable toxicological as well as dermatological characteristics.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: December 15, 1987
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Thomas Clausen
  • Patent number: 4704474
    Abstract: New 1,4-diamino-5-chloro-2-nitrobenzene derivatives are disclosed of the formula I ##STR1## Wherein R.sup.1 and R.sup.2 are the same or different and are each hydrogen, 2-hydroxyethyl or 2,3-dihydroxypropyl, with the proviso, that at least one of said R.sup.1 and R.sup.2 is 2,3-dihydroxypropyl, along with processes for their production, as well as hair coloring compositions containing the same and methods of coloring hair. The compounds are red- to violet-coloring direct dyes, and are readily soluble in water, with favorable toxicological characteristics.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: November 3, 1987
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Thomas Clausen
  • Patent number: 4661114
    Abstract: New 3-amino-5-hydroxypyridine derivatives are disclosed, of the formula I ##STR1## wherein R.sup.1 and R.sup.2 are independently CH.sub.3, C.sub.2 H.sub.5 or C.sub.2 H.sub.4 OH, and its physiologically compatible salts, as well as oxidation hair coloring compositions based upon the compounds of general formula I as coupler substance. The oxidation hair coloring compositions based upon the new couplers, of which the 3-amino-5-hydroxy-2,6-dimethoxypyridine is preferred, are particularly suitable in combination with known developer substances to obtaining red, red-brown, bond and orange colored tones. The new coupler substances of formula I prove to have favorable toxicological and dermatological characteristics.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: April 28, 1987
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Thomas Clausen
  • Patent number: 4660580
    Abstract: Process for a selective permanent shaping of the regrowth of hair, whereby the hair is at first treated with a liquid aqueous pretreatment substance, is rolled onto rollers, is treated with a aqueous reducing permanent shaping substance, rinsing, fixing it oxidatively and further treating it in a customaty manner, characterized in that the pretreatment and the permanent shaping substance is so selected that they form a separating layer at their contact face (uppermost layers of the rolled up hair) during contact, thus making an admixture of the pretreatment substance with the permanent substance more difficult or prevent it. Suitable combinations are for example: Pre=treatment substance containing either a high polymeric polycarboxylic acid polymer, whereby at least 25% Mol of these polymers consists of a free carboxylic acid group, or a water soluble aluminum salt in combination with an alkalic permanent shaping substance.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: April 28, 1987
    Assignee: Wella Aktiengesellschaft
    Inventors: Dietrich Hoch, Theodor Wajaroff, Eugen Konrad
  • Patent number: 4629467
    Abstract: Use of 1-ureidoalkyl amino-4-nitrobenzene compounds of formula I ##STR1## whereby R denotes hydrogen or an hydroxyalkyl residue with 2 to 4 carbon atoms and n a whole number of 2 to 4, as a direct dyeing hair dye in hair dyeing compositions. The dye agents of the formula I have very favorable toxicological characteristics. They deliver pure lemon yellow dyes with a high dye depth and are resistant against bases and reduction agents. A further object of the invention are new compounds of formula II ##STR2## whereby R' denotes an hydroxyalkyl residue with 2 to 4 carbon atoms and n is a whole number from 2 to 4.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: December 16, 1986
    Assignee: Wella Aktiengesellschaft
    Inventors: Thomas Clausen, Eugen Konrad
  • Patent number: 4603048
    Abstract: Acid aqueous or aqueous-alcoholic solutions of a salt of chitosan, in which the anion of the salt is a tenside-anion of the general formula I[R--X--(CH.sub.2 CH.sub.2 O).sub.n --Y].sup..crclbar. (I)with R being C.sub.8 -C.sub.30 -alkyl or C.sub.8 -C.sub.30 -alkylene, X is O, COO, CONR' (R' is H, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl), phenoxy, n is 1 to 100, and Y is (CH.sub.2).sub.m COO.sup..crclbar. (m is 1 to 4) or SO.sub.3.sup..crclbar., as well as cosmetic preparations with a content of these solutions. The chitosan salt solutions are obtained by dissolving chitosan in an aqueous or aqueous-alcoholic solution containing, relative to the free amino groups of the chitosan, an about equimolar amount of a tenside of the formula IIR--X--(CH.sub.2 CH.sub.2 O).sub.n --Y--H (II)in which R, X, n and Y have the above-given meanings.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 29, 1986
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Guenther Lang
  • Patent number: 4588410
    Abstract: 2-hydroxy-4-aminobenzene are disclosed, useful as oxidative hair coloring substances. These are of the formula ##STR1## wherein R is hydrogen, methyl or hydroxyethel.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: May 13, 1986
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Hans-Jurgen Braun, Herbert Mager
  • Patent number: 4543425
    Abstract: 1,3-diamino-4-(2',2',2'-trifluoroethoxy)-benzene, as well as its acid addition salts, are used as new compounds to serve as coupler substance in hair dyeing compositions and yields with known developer substances 1,4-diaminobenzene and 2,5-diaminobenzylalcohol to stable blue tones without any red fraction. Moreover, the new compounds lead to exceptional black tones and ash tones.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: September 24, 1985
    Assignee: Wella AG
    Inventors: Eugen Konrad, Hans J. Braun, Herbert Mager, Friedrich Noser, Max Bracher
  • Patent number: 4528283
    Abstract: Cosmetic compositions useful for treatment of hair or skin contain macromolecular glyceryl-chitosan having(a) 4-40 Mol-% units of the Formula (I) ##STR1## and (b) 60-96 Mol-% units of the Formula (II) ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are ##STR3## wherein R.sub.4 and R.sub.5 are the same or different and are ##STR4## wherein either X=H and Y=CH.sub.2 OH, or Y=H and X=CH.sub.2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R.sub.1, R.sub.2 and R.sub.3 are not uniformly H, or their salts with organic or inorganic acids, in a suitable cosmetic carrier. Also disclosed are the compounds per se and a process for their production wherein chitosan composed of 60-96% entacetylated chitin is reacted with glycidol.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: July 9, 1985
    Assignee: Wella Aktiengesellschaft
    Inventors: Gunther Lang, Harald Wendel, Eugen Konrad
  • Patent number: 4452603
    Abstract: The object of the invention is a composition and a process for the oxidative dyeing of hair on the basis of a 1-(3-hydroxyalkyl)-2,4-diaminobenzene as coupler substance.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: June 5, 1984
    Assignee: Wella Aktiengesellschaft
    Inventors: Eugen Konrad, Hans Husemeyer, Herbert Mager
  • Patent number: 4396392
    Abstract: Agents for the oxidative dyeing of hair, containing as coloring component 6-amino-3-methylphenol, also in the form of its salts or phenolates. The coloring component is contained in these agents in a quantity of about 0.01 to 2.0 percent by weight, alone or in a mixture with the customary developing and coupling substances. In the case of a mixture, the 6-amino-3-methylphenol is preferably used at a molar ratio below normal relative to these developing and coupling substances. The oxidative reaction of the 6-amino-3-methylphenol proceeding with an intensive yellow coloring is generally not influenced by the customary developing and coupling substances that may be present.
    Type: Grant
    Filed: March 5, 1980
    Date of Patent: August 2, 1983
    Assignee: Wella AG
    Inventors: Eugen Konrad, Herbert Mager