Patents by Inventor Max Hunziker

Max Hunziker 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: 5468886
    Abstract: Novel (cyclo)aliphatic epoxy compounds that contain at least one acrylate group in the molecule and at least one cycloaliphatic epoxy group can be used for the production of coating formulations, adhesives, photoresists or in stereolithography. As they contain a cohesive homogeneous network, the three-dimensional objects produced have very good green strength and very good strength properties.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: November 21, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Bettina Steinmann, Jean-Pierre Wolf, Adrian Schulthess, Max Hunziker
  • Patent number: 5461088
    Abstract: Liquid radiation-curable formulation, in particular for stereolithography, based on at least one compound that contains free radically polymerisable groups, and at least one photoinitiator suitable for the polymerisation, which formulation additionally contains a polyoxyalkylene-polysiloxane block copolymer that is selected from copolymers of the chemical formulaeR.sup.1 --(OC.sub.c H.sub.2c).sub.d --{[T]--(C.sub.c H.sub.2c O).sub.d-1 --(C.sub.c H.sub.2c)}.sub.g --OR.sup.1 (I) ##STR1## wherein: R.sup.1 is a hydrogen atom or a C.sub.1 -C.sub.8 alkyl group;R.sup.2 is a methyl or phenyl group;[T] is a polysiloxane group [PS] terminated as described in the specification in more detail;[PS] is the group of formula ##STR2## and [Alk] is an alkylene group of 3 to 10 carbon atoms, as well as novel block copolymers of formulae (I) and (II). The cured formulations have, inter alia, superior impact strength.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: October 24, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean-Pierre Wolf, Adrian Schulthess, Bettina Steinmann, Max Hunziker
  • Patent number: 5177056
    Abstract: Compositions of a) thermosetting plastics or thermoplastics, and a mixture of such plastics, and b) a superconducting compound having a transition temperature T.sub.c of at least 20 K are suitable as moulding materials for the production of articles for magnetic screening of static magnetic fields and for transmitting of magnetic and electrical forces.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: January 5, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Hilti, Carl W. Mayer, Jurgen Pfeiffer, Manfred Hofmann, Max Hunziker
  • Patent number: 5059698
    Abstract: Polymeric .beta.-keto-ester acetals which, in combination with compounds which release acid under the action of actinic radiation, are suitable as positive photoresists, which are suitable for the production of printing plates, printed circuit boards, integrated circuits or silver-free films, can be prepared by free-radical polymerization from compounds of the formula I or II ##STR1## in which n is zero, 1 or 2 and, for example, R.sup.1 is an H atom, C.sub.1 -C.sub.10 -alkyl, phenyl or benzyl, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each an H atom, halogen atom, C.sub.1 -C.sub.10 alkyl, phenyl, naphthyl or the radical --COOR.sup.9, ##STR2## or --SO.sub.2 R.sup.9, in which R.sup.9 is C.sub.1 -C.sub.6 alkyl or phenyl, X is O, S or NR.sup.10, in which R.sup.10 is an H atom, C.sub.1 -C.sub.6 alkyl or phenyl, Y is a radical of the following formulae ##STR3## in which R.sup.11 is an H atom, C.sub.1 -C.sub.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: October 22, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Adrian Schulthess, Max Hunziker
  • Patent number: 4957988
    Abstract: A polymer having a molecular weight of at least 500 and containing at least one residue of formula I(--L.sup.1 --).sub.m Ar.sup.1 [X]--OSO.sub.2 --Ar.sup.2 (--L.sup.2 --).sub.n (I)whereone of m and n denotes 1 and the other denotes 0 or 1,X denotes either a group of formula II ##STR1## linked through the carbonyl group to an aromatic carbon atom in Ar.sup.1, ora group of formula III ##STR2## linked through the carbonyl groups to aromatic carbon atoms in Ar.sup.1, p denotes zero or 1,when p denotes zero, R.sup.1 denotes a hydrogen atom or a monovalent aliphatic, araliphatic or aromatic group,when p denotes 1, R.sup.1 denotes a hydrogen atom, a hydroxyl group, an etherified hydroxyl group, an acyloxy group, an alkyl group or a phenyl-substituted alkyl group,r.sup.2 denotes a hydrogen atom or a monovalent aliphatic, cycloaliphatic, heterocyclic, aromatic or araliphatic group,Ar.sup.1 denotes a monovalent, divalent or trivalent aromatic group,Ar.sup.2 denotes a monovalent or divalent aromatic group, andAr.sup.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: September 18, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Edward Irving, Beat Muller, Adrian Schulthess, Max Hunziker
  • Patent number: 4898927
    Abstract: Non-fusible polymers which are insoluble in organic solvents and essentially are of the formula I ##STR1## in which n is 2 or a number greater than 2 and each radical R.sub.1 independently is --H, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, aryl or aryloxy with up to 12 C atoms, aralkyl with up to 20 C atoms, alkaryl with up to 20 C atoms, --CN, --OCOR.sub.2, --OH or --SR.sub.3, in which R.sub.2 and R.sub.3 independently of one another are each C.sub.1 -C.sub.20 alkyl or aryl with up to 12 C atoms, can be used as electrically conductive polymers after doping with oxidizing agents, for example iodine, bromine, SbF.sub.5, AsF.sub.5, PF.sub.5 or SbCl.sub.5.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: February 6, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Max Hunziker
  • Patent number: 4882415
    Abstract: Halogen-free polyarylene sulfides which are insoluble in organic solvents and infusible, essentially consisting of structural elements of the formula I ##STR1## these elements being present in the molecule more than five times and in which R is one of the following radicals ##STR2## in which R.sub.1 and R.sub.2 independently of one another are each --H, C.sub.1 -C.sub.20 -alkyl, aryl having not more than 12 C atoms, aralkyl having not more than 20 C atoms, alkaryl having not more than 20 C atoms, --CN, --OCOR.sub.3, --OH or --SR.sub.4, in which R.sub.3 and R.sub.4 independently of one another are each a C.sub.1 -C.sub.20 alkyl or aryl having not more than 12 C atoms, X is NH, NR.sub.5, S or O, in which R.sub.5 is a C.sub.1 -C.sub.20 alkyl or an aryl having not more than 12 C atoms, can be used after doping with oxidizing agents, for example iodine, bromine, SbF.sub.5, AsF.sub.5, PF.sub.5 or SbCl.sub.5, as electroconductive polymers.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: November 21, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Max Hunziker
  • Patent number: 4736055
    Abstract: Oxime sulfonates of formula I ##STR1## wherein Y is a polymerizable unsaturated group or epoxide group or an --OH, --NHR.sup.5, --COOH, COOR.sup.6, --COCl, --CH.sub.2 Hal, --SO.sub.2 Cl or --NCO group, Z is an (x+y)-valent connecting member, R.sup.1 and R.sup.2 are monovalent organic radicals, m is 0 or 1, x is 1 or 2 and y is 1 or 2, can be converted into polymers which can be thermally or photochemically dissociated to form free sulfonic acid groups. Said polymers can therefore be used as photoresists which can be developed with aqueous alkalis.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 5, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Dietliker, Werner Rutsch, Godwin Berner, Max Hunziker, Christopher G. Demmer
  • Patent number: 4584251
    Abstract: Charge-transfer complexes of the formula I ##STR1## in which M, R.sup.1 to R.sup.6 and x are as defined in claim 1 are suitable as cathode material in lithium/iodine or silver/iodine solid electrolyte cells.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: April 22, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Max Hunziker