Patents by Inventor Hermann Kaack

Hermann Kaack 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: 4978797
    Abstract: The present invention relates to an improved process for the preparation of 2-hydroxy-4-(hydroxyalkoxy)-benzophenone. More particularly the invention is directed to the oxyalkylation of 2,4-dihydroxy benzophenone, using C.sub.2 to C.sub.4 alkylene oxides in the presence of a basic catalyst and water. Such products are useful as ultraviolet light absorbers.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: December 18, 1990
    Assignee: BASF Corporation
    Inventors: Bongsub Kim, Hermann Kaack
  • Patent number: 4544738
    Abstract: A dye of the formula ##STR1## wherein R.sup.1 is is fluorine, chlorine, bromine, methyl, ethyl, cyano, carboxyl, nitro, tribfluoromethyl, methylsulfonyl, phenylsulfonyl, acetyl, C.sub.1 -C.sub.4 alkoxy, phenoxy, chlorophenoxy or benzoyl; R.sup.2 is hydrogen, chlorine, bromine, methyl, ethyl, C.sub.1 -C.sub.4 alkoxy, benzthiazol-2-yl, 6-methylbenzthiazol-2-yl, acetylamino, carboxyl aminosulfonyl, or aminocarbonyl; R.sup.3 is hydrogen chlorine, bromine or methyl; R.sup.5 is hydrogen, methyl, methoxy or ethoxy; and X is fluorohydroxyphosphonyl or dihydroxyphosphonyl. The dye of the present invention is useful in the dyeing of cellulose-containing material, polyamides and leather. The high tinctorial strength of the dyes and the very good lightfastness and wetfastness properties of the dyeings are particularly noteworthy.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: October 1, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Baumann, Hermann Kaack
  • Patent number: 4511506
    Abstract: Reactive dyes which in the form of the free acids correspond to the general formula ##STR1## where A is fluorine, chlorine or bromine,B is hydrogen, chlorine, methyl, methoxy, ethoxy, hydroxysulfonyl or carboxyl,R is carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, carbamyl, N-mono- or N,N-di-C.sub.1 -C.sub.4 -alkyl- or -hydroxyalkyl-substituted carbamyl, carbopiperidide, carbopyrrolidide or carbomorpholide andR.sup.1 is C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by cyano, hydroxyl or carboxyl, phenyl which is unsubstituted or substituted by methyl, ethyl, fluorine, chlorine, bromine, amino, trifluoromethyl, methoxy, ethoxy, cyano, phenoxy, acetyl, methylsulfonyl, benzoyl, phenylsulfonyl, acetylamino, nitro, hydroxyl, carboxyl, carbamyl, 2-benzthiazolyl or sulfamyl, or naphthyl which is unsubstituted or substituted by hydroxysulfonyl. The novel compounds are particularly suitable for dyeing cellulose-containing textile materials, polyamides and leather.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: April 16, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Baumann, Hermann Kaack
  • Patent number: 4431584
    Abstract: Reactive dyes which in the form of the free acids correspond to the general formula ##STR1## where R.sup.1 is hydrogen, chlorine, bromine, methyl or hydroxysulfonyl, R.sup.2 is chlorine, bromine or phenyl, or is C.sub.1 -C.sub.4 -alkoxy which is unsubstituted or substituted by hydroxyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy, or is phenoxy or naphthoxy which are unsubstituted or substituted by C.sub.1 -C.sub.10 -alkyl and X is fluorine, chlorine or bromine, are exceptionally suitable for dyeing hydroxyl-containing material, e.g. cellulose or leather.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: February 14, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Kaack, Hans Baumann
  • Patent number: 4167394
    Abstract: Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers, in the swollen state, with a dye of the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano, nitro, alkylsulfonyl of 1 to 4 carbon atoms, phenylsulfonyl, methoxy or ethoxy, Y is hydrogen, chlorine, bromine, cyano or nitro, Z is a radical of the formula ##STR2## Q is oxygen or sulfur, R.sup.1 is alkyl of 1 to 4 carbon atoms, methoxymethyl, phenoxymethyl or phenyl which is unsubstituted or substituted by chlorine, bromine, nitro, methyl, methoxy or ethoxy, R.sup.2 is hydrogen, methyl, ethyl, phenyl or phenyl substituted by chlorine, bromine or methyl, R.sup.3 is hydrogen, methyl or, if R.sup.2 is methyl, is C.sub.1 to C.sub.4 alkoxycarbonyl, R.sup.2 and R.sup.3 together with the linking carbon atoms are phenylene or phenylene substituted by chlorine, methyl, methoxy or ethoxy and K is a radical of a coupling component selected from the pyrazolone, pyrazole, indole, quinolone or homophthalimide series.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: September 11, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Dehnert, Guenter Hansen, Hermann Kaack, Wolf-Dieter Kermer, Walter Kurtz, Ernst Schaffner
  • Patent number: 4119621
    Abstract: P-aminoazo dyes of the formula: ##STR1## in which D is a benzoisothiazolyl group;B.sup.1 is hydrogen, methyl, ethyl, methoxy, ethoxy;B.sup.2 is hydrogen, methyl, ethyl, methoxy, ethoxy, chloro, bromo, C.sub.1 to C.sub.4 alkanoylamino or C.sub.1 to C.sub.4 alkoxycarbonylamino;R.sup.1 is the radical ##STR2## C.sub.1 to C.sub.4 alkyl optionally bearing hydroxy, C.sub.1 to C.sub.4 alkoxy, C.sub.1 to C.sub.4 alkanoyloxy, C.sub.1 to C.sub.4 alkoxycarbonyl, C.sub.1 to C.sub.4 alkanoylamino or chloro as a substituent, phenylethyl, phenoxyethyl or cyclohexyl and the group -A.sup.1 --CO--A.sup.2 represents acyl, acyloxy or acylamino derived from a carbonic acid derivative in which A.sup.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: October 10, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Hermann Kaack, Norbert Grund
  • Patent number: 4083684
    Abstract: Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers in the swollen state with a dye of the formula ##STR1## in which D is the radical of a diazo component;R.sup.1 and R.sup.2 are optionally substituted alkyl and one of them may also be cyclohexyl, phenyl, methoxyphenyl or ethoxyphenyl and X is hydrogen, chloro, methyl or acylamino, the molecule containing in the radicals R.sup.1, R.sup.2 and X at least one group: --CO--R.sup.3 --Y--Ar where R.sup.3 is C.sub.1 to C.sub.3 alkylene; ##STR2## Y is oxygen, sulfur or R.sup.4 is hydrogen or C.sub.1 to C.sub.4 alkyl; andAr is phenyl or phenyl bearing chloro, bromo, methyl, methoxy, ethoxy, C.sub.1 to C.sub.4 alkoxycarbonyl or cyano as a substituent.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: April 11, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Hermann Kaack, Wolf-Dieter Kermer, Guenter Meyer