Patents Represented by Attorney Qi Zhuo
  • Patent number: 8268957
    Abstract: This invention refers to a novel process for the synthesis of polyethylene imine (PEI)-based pigment dispersants characterized by a “grafting from” approach, allowing the manufacture of solvent based dispersant systems. The polyethylene imine (PEI)-based pigment dispersant can be presented by the formula (I) X-(T)m-P-(T)n-H wherein P is a polyethyleneimine (PEI) back-bone; T is a residue —CO-A-O— wherein A is C2-C12 alkylene optionally substituted with C1-C6 alkyl with the proviso that each linkage between P and T is an amide bond and each linkage between X and T is an ester bond, X is a modifier or terminator residue R—CO— wherein R is a linear or branched, saturated or unsaturated alkanecarboxylic acids having from 1 to 22 carbon atoms or an unsaturated fatty acid residue or a hydroxycarboxylic residue or a polyester residue obtained from polycondensation of hydroxycarboxylic acids, or an acid terminated polyether; n, m independently are a number from 1 to 100.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 18, 2012
    Assignee: BASF SE
    Inventors: Yanfei Liu, Frank Oliver Heinrich Pirrung, Haiyang Yu, Huiguang Kou
  • Patent number: 8252784
    Abstract: Base-polymerizable or base-crosslinkable compositions comprising select bicyclic amines with benzylic substitution undergo photochemically induced, base-catalysed reactions upon photochemical conversion of the benzylically substituted amine to an amidine derivative.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 28, 2012
    Assignee: BASF SE
    Inventors: Gisèle Baudin, Kurt Dietliker, Tunja Jung
  • Patent number: 8252959
    Abstract: A process for the preparation of an 1,1-disubstituted oxirane is disclosed, wherein an organic sulphide is reacted in a polar solvent with an educt containing a leaving group attached to a primary or secondary carbon atom, and/or the sulfonium salt formed in this way is reacted with a ketone in presence of a base and a polar solvent. Oxiranes of the type obtained may be further converted into the corresponding ?-hydroxyketone or ?-aminoketone, either in one step by subjecting to aerobic oxidation in the presence of a transition metal catalyst, or in two steps by hydrolyzation in the presence of an aqueous acid to the corresponding dialcohol and subsequent selective oxidation. Further described are some novel epoxide intermediates. The ?-hydroxyketones and ?-aminoketones thus obtainable are useful inter alga as photoinitiators.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 28, 2012
    Assignee: BASF SE
    Inventors: Nicole End, Reinhard H. Sommerlade, Yvonne Richter
  • Patent number: 8241822
    Abstract: Compounds of the formula I or II wherein R1 is C1-C10haloalkylsulfonyl, halobenzenesulfonyl, C2-C10haloalkanoyl, halobenzoyl; R2 is halogen or C1-C10haloalkyl; Ar1 is phenyl, biphenylyl, fluorenyl, naphthyl, anthracyl, phenanthryl, or heteroaryl, all of which are optionally substituted; Ar?1 is for example phenylene, naphthylene, diphenylene, heteroarylene, oxydiphenylene, phenylene-D-D1-D-phenylene or —Ar?1-A1-Y1-A1-Ar?1—; wherein these radicals optionally are substituted; Ar?1 is phenylene, naphthylene, anthracylene, phenanthrylene, or heteroarylene, all optionally substituted; A1 is for example a direct bond, —O—, —S—, or —NR6—; Y1 inter alia is C1-C18alkylene; X is halogen; D is for example —O—, —S— or —NR6—; D1 inter alia is C1-C18alkylene; are particularly suitable as photolatent acids in ArF resist technology.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: August 14, 2012
    Assignee: BASF SE
    Inventors: Hitoshi Yamato, Toshikage Asakura, Akira Matsumoto, Peter Murer, Tobias Hintermann
  • Patent number: 8227599
    Abstract: A process for the separation of biological materials, such as dye-ligand affinity chromatography, wherein an adsorbent is used, which comprises a reaction product of certain reactive anthroquinone compounds and a substrate having a group capable of reaction with a reactive group in said reactive anthroquinone compounds to form a covalent bond.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: July 24, 2012
    Assignee: BASF SE
    Inventors: Vadiraj Subbanna Ekkundi, Narayan S. Punekar, Kamalesh Pai Fondekar, Georg Roentgen, Shilpa S. Korde, Ajit B. Shinde, Masana Moorthy
  • Patent number: 8221906
    Abstract: The present invention relates to novel polymers comprising a repeating unit(s) of the formula (I) wherein at least one of the substituents R1, R2, R3, R4, R5, R6, and R7 is a group -(Sp)x1-HEI, wherein Sp is a spacer unit, HE1 is a group (HE1I), which increases the hole-injection and/or hole-transport properties of the polymers; or a group (HE1II), which increases the electron-injection and/or electron-transport properties of the polymers, or a group (HE1III), which increases the hole-injection and/or hole-transport properties of the polymers and the electron-injection and/or electron-transport properties of the polymers, x1 is 0, or 1, and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high temperature stability of the emission color can be observed, if the polymers according to the invention are used in polymer light emitting diodes (PLEDs).
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: July 17, 2012
    Assignee: BASF SE
    Inventors: Thomas Schäfer, Peter Murer, Tobias Hintermann, Beat Schmidhalter
  • Patent number: 8193528
    Abstract: The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y1, Y2, Y3, Y4, X1, X2 and X3 are independently each other N, or CR4, with the proviso that at least one of the groups X1, X2 and X3 is a group CR4, R1 is hydrogen, F, —SiR100R101R102, or an organic substituent, R4 is hydrogen, F, —SiR100R101R102, or an organic substituent, or any of the substituents R1, R1? and R4, which are adjacent to each other, together form an aromatic, or heteroaromatic ring, or ring system, which can optionally be substituted, m is an integer of 1 to 6, and R100, R101 and R102 are independently of each other a C1-C8alkyl group, a C6-C24aryl group, or a C7-C12aralkyl group, which may optionally be substituted, and Q is a linking group; with the proviso that in the compound of formula (III) at least one of the substituents R1, or R4 is a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emit
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: June 5, 2012
    Assignee: BASF SE
    Inventors: Thomas Schäfer, Thomas Eichenberger, Kristina Bardon, Andrea Ricci, Natalia Chebotareva
  • Patent number: 8152915
    Abstract: The invention pertains to a novel, simpler dry-milling method for comminuting crude pigments (especially crude phthalocyanines) for use in publication gravure and packaging inks, wherein the crude pigment is dry-milled at relatively low temperature in combination with a resin and a pigment derivative, preferably further together with an extender and optionally an antioxidant. The invention also pertains to the thus obtained, new compositions, which are extraordinarily easily dispersible in aromatic solvents, and their use for the preparation of publication gravure or packaging inks or ink concentrates. Pigment dispersions obtained from the preferred compositions are also claimed.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 10, 2012
    Assignee: BASF SE
    Inventors: Thomas Healy, Ian Andrew Lambie
  • Patent number: 8148358
    Abstract: The invention relates to a process for enhancing the contrast of color filters comprising ? copper phthalocyanine or ? copper phthalocyanine, wherein a 1,4-diamino-anthraquinone dye or 1,9-annellated derivative thereof, of which the most bathochromic solution absorption peak in the visible spectrum is at from 575 to 615 nm, preferably at from 585 to 605 nm (as compared with around 630 nm for usual 1,4-diamino-anthraquinone dyes or 1,9-annellated derivatives thereof) is used in combination with ? copper phthalocyanine or ? copper phthalocyanine.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: April 3, 2012
    Assignee: BASF SE
    Inventors: Véronique Hall-Goulle, Rebekka Zillhardt
  • Patent number: 8138303
    Abstract: The present invention relates to novel polymers comprising a repeating unit of the formula (I) and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high stability of the emission color can be observed, if the polymers according to the invention are used in organic light emitting diodes (OLEDs).
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 20, 2012
    Assignee: BASF SE
    Inventors: Natalia Chebotareva, Roger Prétôt, Paul Adriaan Van der Schaaf, Thomas Schäfer, Beat Schmidhalter, Peter Murer
  • Patent number: 8084522
    Abstract: The invention relates to a cationic photocurable composition comprising at least one cationically polymerizable compound, at least one onium salt photoinitiator, at least a moisture scavenger, and at least a stabilizer selected from the group consisting of sterically hindered nitroxyl stabilizers, sterically hindered phenolic antioxidants, organic phosphorous stabilizers and mixtures thereof.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: December 27, 2011
    Assignee: BASF SE
    Inventor: Karsten Rinker
  • Patent number: 8075683
    Abstract: Pigment of formula wherein R1 is CONR4R5 or C(?NR6)NR7R8, R2, R3, R4 and R5 are each independently of the others H, C1-C5alkyl, or phenyl which is unsubstituted or substituted from 1 to 5 times by C1-C5alkyl or by halogen, R6 is phenyl which is unsubstituted or substituted from 1 to 4 times by C1-C5alkyl or by halogen, R7 is H or C1-C5alkyl, and R8 is a direct bond or a carbonyl bridge to R6, which pigment consists of primary particles the average aspect ratio of which is from 4 to 1, preferably from 3.5 to 1, especially from 3 to 1, and for the ellipses equivalent to the contours of the primary particles on a two-dimensional electron microscopic image have an average numerical eccentricity ? of from 0 to 0.80, the numerical eccentricity ? being defined as (formula), wherein a is the semimajor axis and b is the semiminor axis of the equivalent ellipse. That pigment preferably has a narrow particle size distribution and is, as are analogous pigments, prepared by a novel process.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 13, 2011
    Assignee: BASF SE Ludwigshafen
    Inventors: Rüdiger Hainz, Jean Allaz, Didier Schroeder
  • Patent number: 8067643
    Abstract: Compounds of the formula (I), L, L?, L?, L1, L?1, L?1, L2, L?2, L?2, L3, L?3, L?3, L4, L?4, L?4, L5, L?5, L?5, L6, L?6, L?6, L7, L?7, L?7, L8, L?8 and L?8 independently of one another are hydrogen or an organic substituent; and/or one or more of the pairs L3 and L5, L?3 and L?5 or L?3 and L?5 together denote a single bond, provided that the respective X, X? or X? is not a single bond; and/or L3 and L5, L?3 and L?5 or L?3 and L?5 together denote an organic linking group; and/or one or more of the pairs L1 and L3, L1 and L, L5 and L7, L?1 and L?3, L?1 and L?, L?5 and L?7, L?1 and L?3, L?1 and L?, or L?5 and L?7, together denote an organic linking group; provided that at least one of L, L?, L?, L1, L?1, L?1, L2, L?2, L?2, L3, L?3, L?3, L4, L?4, L?4, L5, L?5, L?5, L6, L?6, L?6, L7, L?7, L?7, L8, L?8 and L?8 is other than hydrogen; X, X? and X? independently of one another are a single bond, CRaRb O, S, NRc or NCORc; Ra, Rb and Rc independently of one another are hydrogen or an organic substituent; and Y is an ino
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 29, 2011
    Assignee: BASF SE
    Inventors: Pascal Hayoz, Stephan Ilg
  • Patent number: 8049186
    Abstract: The present application provides a composition showing a color change depending on the absorbed radiation-dose, comprising (a) an acid responsive colorant; (b) a photolatent acid; characterized in that (b) is a sulfonyloxime ester compound; and its use as a radiation dose indicator.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: November 1, 2011
    Assignee: BASF SE
    Inventors: Katia Studer, Tunja Jung, Kurt Dietliker, Urs Lehmann
  • Patent number: 8040592
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and an anionic pigment or anionic pigment derivative, and the dispersant is selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole anionic pigment or anionic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the anionic pigment or anionic pigment derivative physically distinct from the aggregates.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 18, 2011
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Patent number: 8034531
    Abstract: The present invention relates to a photosensitive resin composition comprising a) as a component (A) a green colorant of the formula (I) in which the rings A, B, C and D are substituted by hydroxy or by moiety wherein R, is hydrogen or C1,-C4.-Alkyl, R2 is hydrogen or C1,-C4-Alkyl, n is 0, 1, 2 or 3 and the ring E is unsubstituted or substituted by C1,-C6alkyl, C1,-C6alkoxy, hydroxy, NHCOR3, NHSO2, R4 or SO2NHR5, wherein R3, is C1,-C4,-Alkyl or phenyl, R4, is C1,-C4-Alkyl or phenyl and R5 is C1,-C4-Alkyl or phenyl, b) as a component (B) an alkali soluble oligomer or polymer (reactive or unreactive), c) as a component (C) a polymerizable monomer, d) as a component (D) a photoinitiator, e) as a component (E) an epoxy compound, and also, if desired, f) as a component (F) further additives, used as solder resist, etching resist or plating resist in the manufacture of printed circuit boards.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: October 11, 2011
    Assignee: BASF SE
    Inventors: Hidetaka Oka, Jean-Marie Adam
  • Patent number: 8023171
    Abstract: Electrically active, cathodically coloring electrochromic polymers are blended with a non-electrochromic, non-electrically conductive binder polymer to provide an electrochomic composition with greatly enhanced performance in an electrochromic device over time. It is also found that blending an electrochromic polymer with a non-coloring electroactive material allows for greater design in preparing electrochromic devices as it enables the use of a higher amount of typically low coloring anodic materials due to increased need for charge balancing.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 20, 2011
    Assignee: BASF SE
    Inventors: Nancy Nase Cliff, David Yale, Jennifer Jankauskas, Ece Unur
  • Patent number: 8017778
    Abstract: The present invention is directed to a new 2,9-dichloroquinacridone in platelet form, a process for its preparation and its use for coloring high molecular weight organic material. The 2,9-dichloroquinacridone in platelet form has a length of 1 to 45 ?m, a width of 0.1 to 20 ?m and an average thickness of 0.01 to 5 ?m and is characterized in that the hue-value h in remission is ?31 and/or the lightness L* in transmission is ?20 and/or a decreasing b* value and an increasing a* value from an illuminating and viewing angle (aspecular angle) 45°/110° (+25°) to 45°/90° (+45°).
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 13, 2011
    Assignee: BASF SE
    Inventors: Marc Maurer, Niklaus Raetzo, Paolo Balliello
  • Patent number: 8012602
    Abstract: Disclosed are electroluminescent devices that comprise organic layers that contain certain organic compounds containing one or more pyrimidine moieties. The organic compounds containing one or more pyrimidine moieties are suitable components of blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in for example mobile phones, televisions and personal computer screens.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: September 6, 2011
    Assignee: BASF SE
    Inventors: Thomas Schäfer, Patrice Bujard, Jonathan Rogers, Kristina Bardon
  • Patent number: 8012672
    Abstract: Compounds of the formula (I), wherein L1, L2, L3 and L4 independently of one another are hydrogen or an organic substituent; R is for example C1-C20alkyl, C5-C12cycloalkyl, C2-C20alkenyl, substituted C1-C20alkyl; X is O, S, NRa or NCORa; Ra is for example hydrogen or C1-C20alkyl; and Y is an inorganic or organic anion; are suitable as photolatent acid generators.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: September 6, 2011
    Assignee: BASF SE
    Inventors: Pascal Hayoz, Jean-Luc Birbaum, Stephan Ilg