Abstract: A process for the preparation of microcapsules, which comprises rapidly stirring an aqueous solution of a precondensate of urea and a dialdehyde in the molar ratio of urea to dialdehyde of 1:1 to 1:2.5, into an acidified aqueous dispersion of a water-immiscible pesticide or a readily volatile water-immiscible solvent.
Type:
Grant
Filed:
August 22, 1994
Date of Patent:
November 19, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Rudolf Nastke, Andreas Leonhardt, Ernst Neuenschwander
Abstract: A process is described for the preparation of photopolymerizable compositions, wherein the photopolymerizable compositions can be photopolymerized by the irradiation of emission lines of differing wavelength from a UV/VIS laser light source, and contain a photopolymerizable compound and at least two photoinitiators, by adjusting the sensitivity to radiation. The ratio between the concentrations of the individual photoinitiators is so adjusted that the composition has virtually the same optical density for the radiation of the different emission lines at which the photoinitiators are effective.
Type:
Grant
Filed:
May 9, 1995
Date of Patent:
November 12, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Manfred Hofmann, Bernd Klingert, Max Hunziker, Rolf Wiesendanger, Adrian Schulthess, Paul Bernhard
Abstract: A continuous drier for board-shaped piece material, especially for coated in-layers or printed circuit boards, is described which comprises a drying chamber, in which the board-shaped piece material to be dried is exposed to a guided air stream while being transported in a transport plane along a transport path from an entrance to an exit of the drying chamber by transport means acting preferably at its longitudinal edges. The drying chamber is equipped with an inlet for incoming air and with an outlet for outgoing air. Arranged above and below the transport path of the board-shaped piece material are infrared radiators the radiation of which acts directly on the coated piece material and which, in addition, form a heat source for the guided air stream. The air stream in the drying chamber is guided counter to the transport direction of the board-shaped piece material and substantially parallel to the transport plane. A coating installation comprising such a continuous drier is also described. (FIG.
Abstract: The invention relates to mixtures containing:a) a cationically polymerizable compound andb) a compound of the formula I[R.sup.1 (Fe.sup.II R.sup.2).sub.a ].sub.q.sup..sym.an anX.sup..crclbar.q (I)in which a is 1 or 2, n is 1 or 2, R.sup.1 is a substituted or unsubstituted .pi.-arene, R.sup.2 is a substituted or unsubstituted .pi.-arene or cyclopentadienyl anion or indenyl anion, q is an integer from 1 to 3 and X is FSO.sub.3.sup.- or a q-valent anion of an organic sulfonic acid or of a carboxylic acid; R.sup.1 can also be a polymeric, aromatic ligand. The invention also relates to the novel compounds of the formula I. The curable mixtures can be processed in particular for the production of coatings having a good resistance to heat.
Abstract: The invention relates to a process for the preparation of a compound of formula ##STR1## useful as intermediate for the preparation of pesticides, wherein R is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkyl substituted by from 1 to 10 halogen atoms or by from 1 to 3 radicals selected from the group consisting of C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio and phenyl, phenyl or phenyl substituted by from 1 to 3 radicals selected from the group consisting of halogen, methyl, ethyl, methoxy, methylthio and nitro, which comprises reacting with hydrazine hydrate a compound of formula ##STR2## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkyl substituted by from 1 to 9 chlorine atoms, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 alkylsulfinyl, C.sub.1 -C.sub.
Abstract: Mixtures of a herbicidally effective amount of a haloacetamide of formula I ##STR1## and, to antagonize the herbicide, an antidotally effective amount of a compound of formula IIR--CHYCl (II)wherein R is defined herein, suitable for controlling weeds in crops of cultivated plants, particularly maize.
Abstract: The invention relates to flame-retarded compositions comprisingA) an epoxy resin mixture consisting ofA1) 15-35% by weight of at least one liquid epoxy resin,A2) 55-85% by weight of aluminum oxide trihydrate having a particle size of D.sub.50 20-25 .mu.m as determined by sieving,A3) 0-20% by weight of at least one further filler andA4) 0-5% by weight of at least one conventional additiveandB) at least one carboxylic acid anhydrideora cycloaliphatic diamine of the formula I or II ##STR1## in which the radicals R.sub.1 to R.sub.4 independently of one another are hydrogen or C.sub.1 -C.sub.4 alkyl and Z is a direct bond, --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --S--, --O--, --SO.sub.2 -- or --CO--, in an amount sufficient to cure component A,the content of components A2 and A3 together being 63-80% by weight, with respect to the total weight of the composition. These compositions are suitable for use in high voltage components, such as flyback transformers.
Type:
Grant
Filed:
May 10, 1994
Date of Patent:
September 3, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Dieter Baumann, Werner Hollstein, Claus W. Rabener, Peter R uger
Abstract: Highly concentrated flowable dispersions of corrosion inhibitors can be prepared by stirring a filter cake of the corrosion inhibitor with a dispersant and a thickener. These dispersions are storage stable.
Type:
Grant
Filed:
November 23, 1994
Date of Patent:
August 27, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Martine Goliro, Martin Holer, Sandor Gati
Abstract: Compounds of the general formula I ##STR1## in which n is 1, 2 or 3 and in which X is oxygen or sulfur, T has the meaning of --S--, --S--S--, --S--S--, --S--S--S--S--, --S--S--S--S--S--, ##STR2## and Y has the meaning of ##STR3## in which Z has the meaning of --H, --COR.sup.13, --COOR.sup.13 or --CONHR.sup.13, and Q has the meaning of oxygen or --NR.sup.0 --, and R.sup.1, R.sup.2, R.sup.0, R.sup.4 and R.sup.13 are as defined in claim 1, with the proviso that the compound of the formula C.sub.2 H.sub.5 --S--CH.sub.2 CH(OH)--P(OC.sub.2 H.sub.5).sub.2 is excepted.The invention also relates to compositions containing the compounds of the formula I and organic materials, for example functional liquids and, in particular, lubricants.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
August 27, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Hermann O. Wirth, Hans-Helmut Friedrich, Kay S. Groninger
Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is C.sub.3 -C.sub.8 cycloalkyl, halo-C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.6 alkyl, halo-C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.6 alkyl, --Si(R.sub.3).sub.3, --S--R.sub.4, --SO.sub.2 --R.sub.6 or --CO--R.sub.9 ;R.sub.2 is halogen, C.sub.1 -C.sub.4 alkyl or CF.sub.3, the substituents R.sub.2 being identical or different when n is 2;R.sub.3 each independently of the others is C.sub.1 -C.sub.6 alkyl, halo-C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy or phenyl;R.sub.4 is aryl or heteroaryl each of which is unsubstituted or substituted;R.sub.6 is unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.1 -C.sub.20 alkoxy, C.sub.2 -C.sub.6 alkenyloxy, C.sub.2 -C.sub.6 alkynyloxy, C.sub.1 -C.sub.4 alkylthio, aryl, aryloxy or arylthio, or is optionally substituted amino;R.sub.9 is hydroxy, unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.6 alkenyl, C.
Type:
Grant
Filed:
June 5, 1995
Date of Patent:
August 13, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Peter Maienfisch, Manfred B oger, Thomas Pitterna, Henry Szczepanski
Abstract: An epoxy resin composition characterized by comprising (A) an epoxy resin containing an oxazolidone ring, (B) a halogen-containing epoxy resin and (C) a curing agent as its ingredients, wherein the ratio by weight of ingredients (A) to (B) is 5-100:95-0, the hydrolizable chlorine content of ingredients (A) and (B) is no more than 500 ppm and the amount of .alpha.-glycol is no more than 100 m eq/kg has excellent properties and can be employed as the materials for electronic applications and as paints, adhesives, molding materials, composite materials, laminates and sealing materials.
Abstract: Monocarboxamides of formula I ##STR1## wherein R is a radical of formula ##STR2## C.sub.9 -C.sub.19 alkyl, C.sub.9 -C.sub.19 alkenyl or C.sub.9 -C.sub.19 alkdienyl,wherein each R.sup.2 independently of the other is a hydrogen atom or C.sub.1 -C.sub.4 alkyl, each R.sup.3 independently of one another is a hydrogen atom or a hydroxyl group and at least one R.sup.3 is a hydroxyl group, and R.sup.1 is a radical of formula ##STR3## are suitable for curing epoxy resins, in ##STR4## are suitable for curing epoxy resins, in particular for cold curing.
Abstract: Compositions comprising a linear base polymer, an ethylenically unsaturated addition-polymerizable compound and a combination of (A) a 1-benzoyl-1-amino-substituted-1-benzylalkane with (B) an .alpha.-phenyl-.alpha.,.alpha.-dialkoxyacetophenone as photopolymerization initiator are suitable for the production of thick-film printing plates.
Type:
Grant
Filed:
April 5, 1995
Date of Patent:
July 30, 1996
Assignees:
Ciba-Geigy Corporation, Tokyo Ohka Kogyo, K.K.
Abstract: Ethylenically unsaturated polymerisable compounds can be cured with daylight or with light sources equivalent to daylight by using as hardener a photoinitiator of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.12 alkyl, cyclopentyl, cyclohexyl, unsubstituted phenyl, naphthyl or biphenyl,R.sub.2 and R.sub.3 are each independently of the other C.sub.1 -C.sub.12 alkyl,R.sub.4 is hydrogen or C.sub.1 -C.sub.12 alkyl, andR.sub.5 is hydrogen or methyl.
Type:
Grant
Filed:
May 25, 1995
Date of Patent:
July 9, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
David G. Leppard, Manfred Kohler, Ljubomir Misev
Abstract: Compounds of the formula I, II, III and IIIa ##STR1## in which Ar.sup.1 is an unsubstituted or substituted aromatic radical and at least one of the radicals R.sup.1 and R.sup.2 is an alkenyl, cycloalkenyl or arylmethyl group, are effective photoinitiators for photopolymerization of unsaturated compounds. They are particularly suitable for photocuring of pigmented systems.
Type:
Grant
Filed:
May 1, 1995
Date of Patent:
July 9, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Vincent Desobry, Kurt Dietliker, Rinaldo Husler, Werner Rutsch, Manfred Rembold, Franciszek Sitek
Abstract: Mixtures of a herbicidally effective amount of a pyridylsulfonylurea of formula I, ##STR1## wherein R, R.sub.1, R.sub.2 and A are as defined in claim 1, and of a herbicide-antagonistically effective amount of a sulfamoylphenylurea of formula II, ##STR2## wherein R.sub.7 to R.sub.11 and A.sub.2 are as defined in claim 1, are very suitable for controlling weeds in crops of useful plants, especially maize and sugar cane.
Type:
Grant
Filed:
May 1, 1995
Date of Patent:
July 2, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Werner Fory, Elmar Kerber, Manfred Hudetz
Abstract: Compounds of the formulaRG--A--INwhereinIN is a photoinitiator basic structureA is a spacer group andRG is a functional reactive groupcan be employed as coreactive photoinitiators for photopolymerization of systems containing ethylenically unsaturated compounds.
Type:
Grant
Filed:
June 2, 1994
Date of Patent:
July 2, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Manfred Kohler, Jorg Ohngemach, Eike Poetsch, Rudolf Eidenschink, Gerhard Greber, Dieter Dorsch, Jurgen Gehlhaus, Konrad Dorfner, Hans L. Hirsch
Abstract: Mixtures comprising a herbicidally effective amount of a pyridylsulfonylurea of formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and A are as defined in claim 1, and a herbicide-antagonistically effective amount of a sulfamoylphenylurea of formula II ##STR2## wherein R.sub.12 to R.sub.16 and A.sub.2 are as defined in claim 1, are very suitable for the control of weeds in crops of useful plants, especially maize.
Abstract: There are disclosed laminated structures which are bonded with a UV-/VIS-curable composition and which consist of a main foil A) which is substantially impervious to light, at least one interlayer B) which is substantially impervious to light in the absence of the adhesive and which carries on the side with its back to the main foil information in the form of a color pattern, and of a substantially light-permeable covering foil C). The laminated structures can be used as identity cards.
Abstract: A lubricant oil composition comprising a diesel engine lubricating oil and, as antioxidant, a compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently of the other C.sub.1 -C.sub.12 alkyland X is ##STR2## or --CH.sub.2 --S--R and R is a straight chain or branched alkyl radical of the formula --C.sub.n H.sub.2n+1, wherein n is an integer from 8 to 22.
Type:
Grant
Filed:
February 23, 1995
Date of Patent:
June 4, 1996
Assignee:
Ciba-Geigy Corporation
Inventors:
Ulrich Kristen, Klaus Muller, Michael Rasberger