Patents by Inventor Michael Marky

Michael Marky 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).

  • Process for the preparation of a very pure commercial form of 4,2',4'-trichloro-2-hydroxydiphenyl ether
    Patent number: 4490562
    Abstract: A very pure, dust-free commercial form of 4,2',4'-trichloro-2-hydroxydiphenyl ether with little odor is prepared by diazotizing 4,2'4'-trichloro-2-aminodiphenyl ether, boiling the diazonium salt and purifying the reaction product.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: December 25, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Werner Schreiber, Michael Marky
  • Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents
    Patent number: 4390476
    Abstract: Phosphonium compounds of the formula(R).sub.3 P.sup..sym. --CH.sub.2 --X--CH.dbd.CH--R.sub.1 --Y.sup..crclbar.in which R is preferably alkyl having 1 to 4 C atoms, cyclohexyl or phenyl, R.sub.1 is a substituted or unsubstituted aromatic radical, especially a phenyl radical, X is phenylene, 4,4'-biphenylene or 1,4- or 2,6-naphthylene and Y.sup..crclbar. is SO.sub.3.sup..crclbar., SO.sub.2.sup..crclbar. or COO.sup..crclbar., a process for their preparation and a process for the preparation of asymetrically substituted fluorescent brightening agents of the formulaZ--CH.dbd.CH--X--CH.dbd.CH--R.sub.1 --Y.sup..crclbar. M.sup..sym.in which R.sub.1, X and Y.sup..crclbar. are as defined above, M.sup..sym. is a cation and Z is preferably a substituted or unsubstituted phenyl or 2-phenyl-triazol-4-yl radical, by reacting a bis-phosphonium compound of the formula ##STR1## in which Q.sup..crclbar. is an anion, with an aldehyde of the formula M.sup..sym. Y.sup..crclbar. --R.sub.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: June 28, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Michael Marky
  • Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents
    Patent number: 4316860
    Abstract: Phosphonium compounds of the formula(R).sub.3 P.sup..sym. --CH.sub.2 --X--CH.dbd.CH--R.sub.1 --Y.sup..crclbar.in which R is preferably alkyl having 1 to 4 C atoms, cyclohexyl or phenyl, R.sub.1 is a substituted or unsubstituted aromatic radical, especially a phenyl radical, X is phenylene, 4,4'-biphenylene or 1,4- or 2,6-naphthylene and Y.sup..crclbar. is SO.sub.3.sup..crclbar., SO.sub.2.sup..crclbar. or COO.sup..crclbar., a process for their preparation and a process for the preparation of asymetrically substituted fluorescent brightening agents of the formulaZ--CH.dbd.CH--X--CH.dbd.CH--R.sub.1 Y.sup..crclbar. M.sup..sym.in which R.sub.1, X and Y.sup..crclbar. are as defined above, M.sup.61 is a cation and Z is preferably a substituted or unsubstituted phenyl or 2-phenyl-triazol-4-yl radical, by reacting a bis-phosphonium compound of the formula ##STR1## in which Q.sup..crclbar. is an anion, with an aldehyde of the formula M.sup..sym. Y.sup..crclbar. --R.sub.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: February 23, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Michael Marky
  • Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents
    Patent number: 4231957
    Abstract: Phosphonium compounds of the formula(R).sub.3 P.sup..sym. --CH.sub.2 --X--CH.dbd.CH--R.sub.1 Y.sup..crclbar.in which R is preferably alkyl having 1 to 4 C atoms, cyclohexyl or phenyl, R.sub.1 is a substituted or unsubstituted aromatic radical, especially a phenyl radical, X is phenylene, 4,4'-biphenylene or 1,4- or 2,6-naphthylene and Y.sup..crclbar. is SO.sub.3.sup..crclbar., SO.sub.2.sup..crclbar. or COO.sup..crclbar., a process for their preparation and a process for the preparation of asymetrically substituted fluorescent brightening agents of the formulaZ--CH.dbd.CH--X--CH.dbd.CH--R.sub.1 --Y.sup..crclbar. M.sup..sym.in which R.sub.1, X and Y.sup..crclbar. are as defined above, M.sup..sym. is a cation and Z is preferably a substituted or unsubstituted phenyl or 2-phenyl-triazol-4-yl radical, by reacting a bis-phosphonium compound of the formula ##STR1## in which Q.sup..crclbar. is an anion, with an aldehyde of the formula M.sup..sym. Y.sup..crclbar. --R.sub.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: November 4, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Michael Marky