Patents by Inventor Bernd Tieke

Bernd Tieke 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: 4933053
    Abstract: The present invention relates to electrically conductive polymers obtainable by anodic oxidation of starting polymers consisting of 5-100 mol % of recurring structural units of the formula I and 95-0 mol % of recurring structural units of the formula II ##STR1## in which R.sup.1 and R.sup.4 independently of one another are C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, phenyl or phenoxy, R.sup.2 and R.sup.3 independently of one another are C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, cyano or nitro, R.sup.5 is C.sub.1 -C.sub.18 alkyl, which is unsubstituted or can be substituted by one or two hydroxyl groups, or is phenyl or hydroxyl, m is an integer from 3-11, and n and p independently of one another are integers from 0 to 2.The electrically conductive polymers are colored in the visible region, whereas the electrically insulating starting polymers are not colored in this region.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: June 12, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Bernd Tieke
  • Patent number: 4904734
    Abstract: Dehydrogenated poly(spiro[2,4]hepta-4,6-diene) which is insoluble in organic solvents, has an electrical conductivity of at least 10.sup.-10 S.times.cm.sup.-1, and contains, relative to the total number of recurring structural units in the polymer, 0-90 mol % of the recurring structural units of the formulae I and II ##STR1## in which R.sup.1 is in each case a hydrogen atom or an alkyl group having 1 to 4 C atoms, and 10-100 mol % of at least one of the recurring structural units of the formulae III to VI ##STR2## in which R.sup.1 is as defined in formula I or II and X.sup.- is a bromide or iodide ion or an anion of a Lewis or protonic acid, is obtained by treating poly(spiro[2,4]-hepta-4,6-diene) with bromine, iodine or a Lewis or proton-donating acid, and can be used in an electrically conducting material for the production of, for example, conductors, electrodes, batteries or semiconductor components.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: February 27, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Tieke, Sheik A. C. Zahir
  • Patent number: 4879350
    Abstract: Dehydrogenated polycyclopentadiene which is insoluble in organic solvents, has a specific conductivity of at least 10.sup.-7 S.cm.sup.-1 and contains essentially the recurring structural units of the formulae III to VIII ##STR1## in which X.sup.- is an anion derived from iodine or a metal pentahalide or metalloid pentahalide, is obtained by treating polycyclopentadiene with iodine or a metal pentahalide or metalloid pentahalide and can be used as an electrically conducting material for the production of, for example, conductors, electrodes, batteries or semi-conductors, components.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: November 7, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Bernd Tieke
  • Patent number: 4840999
    Abstract: Dehydrogenated poly(spiro[2,4]hepta-4,6-diene) which is insoluble in organic solvents, has an electrical conductivity of at least 10.sup.-10 S.times.cm.sup.-1, and contains, relative to the total number of recurring structural units in the polymer, 0-90 mol % of the recurring structural units of the formulae I and II ##STR1## in which R.sup.1 is in each case a hydrogen atom or an alkyl group having 1 to 4 C atoms, and 10-100 mol % of at least one of the recurring structural units of the formulae III to VI ##STR2## in which R.sup.1 is as defined in formula I or II and X.sup.- is a bromide or iodide ion or an anion of a Lewis or protonic acid, is obtained by treating poly(spiro[2,4]-hepta-4,6-diene) with bromine, iodine or a Lewis or proton-donating acid, and can be used in an electrically conducting material for the production of, for example, conductors, electrodes, batteries or semiconductor components.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: June 20, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Tieke, Sheik A. Zahir
  • Patent number: 4771111
    Abstract: The invention relates to compositions of a soluble polyimide and polypyrrole. These compositions can preferably be prepared by anodic oxidation of pyrrole or a pyrrole derivative at electrodes coated with polyimide. They make it possible to prepare free standing electrically conductive films.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: September 13, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Tieke, Sheik A. Zahir
  • Patent number: 4756848
    Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is hydroxyl or glycidyloxy, R.sub.2 is hydrogen, alkyl, alkoxy, halogen, aryl, aralkyl or alkaryl, R.sub.3 is hydrogen or alkyl or both R.sub.3 s together are alkylene, and q is 1 to 3.5, together with epoxy resins and thermoactivatable hardeners and/or curing catalysts, are suitable for the preparation of curable mixtures. The cured products obtained therefrom can be employed for the preparation of electrically conductive coatings or patterns by tempering at elevated temperature or by irradiation with actinic light. Metal can be deposited without current on said electrically conductive coatings or patterns.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: July 12, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Tieke, Sheik A. Zahir, Jurgen Finter
  • Patent number: 4562141
    Abstract: Compositions which can be polymerised by radiation and are based on surface-active, conjugated diacetylene compounds of the formula H(CH.sub.2).sub.m --C.tbd.C--C.tbd.C--(CH.sub.2).sub.n --A in which m and n=0 or 1-30 and m+n is at least 10 and A is a polar group, and which contain mixtures of such diacetylene compounds or are mixed with surface-active substances, are particularly suitable for use as a high-resolution photographic recording material.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: December 31, 1985
    Assignee: Ciba Geigy Corporation
    Inventor: Bernd Tieke