Patents by Inventor Guenter Lauth

Guenter Lauth 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).

  • Preparation of alkoxylation products in the presence of mixed hydroxides modified with additives
    Patent number: 5741947
    Abstract: Alkoxylation products are prepared by reacting compounds having active hydrogen atoms with C.sub.2 -C.sub.4 -alkylene oxides in the presence of a mixed hydroxide built up of polycations and modified with additives and having the general formula I or II?M(II).sub.1-x M(III).sub.x (OH).sub.2 !A.sub.x/n .multidot.m L(I)?LiAl.sub.2 (OH).sub.6 !A.sub.1/n .multidot.m L (II)whereM(II) is at least one divalent metal ion,M(III) is at least one trivalent metal ion,A is at least one inorganic anion andL is an organic solvent or water,n is the valence of the inorganic anion A or in the case of a plurality of anions A is their mean valence andx can assume a value of from 0.1 to 0.5 andm can assume a value of from 0 to 10,as alkoxylation catalyst, wherein the mixed hydroxide contains additives.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: April 21, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Wolf, Bernd Burkhart, Guenter Lauth, Horst Trapp, Alfred Oftring
  • Molecular sieves containing azo dyes
    Patent number: 5573585
    Abstract: Crystalline molecular sieves useful as colorants contain one or more chromophores of the class of the mono- or polyazo dyes that are devoid of acidic groups.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 12, 1996
    Assignee: Wolfgang Hoelderich
    Inventors: Guenter Lauth, Wolfgang Hoelderich, Gerhard Wagenblast, Bernhard Albert, Gunther Lamm, Helmut Reichelt, Clemens Grund, Sabine Gruettner-Merten
  • Coated catalysts
    Patent number: 5559065
    Abstract: A coated catalyst is prepared by depositing an alloy by physical vapor deposition and/or chemical vapor deposition on a molding, at least one alloy component being a metal selected from the group consisting of aluminum, gallium, silicon, germanium, tin, lead, bismuth, yttrium, titanium, zirconium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron, cobalt, ruthenium, rhodium, palladium, osmium, iridium, platinum, copper, silver, gold and zinc.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: September 24, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Lauth, Wolfgang Hoelderich, Klaus Harth, Hartmut Hibst
  • Colored crystalline aluminophosphates and/or silicoaluminophosphates of the AEL or VFI type
    Patent number: 5360474
    Abstract: Colored crystalline alumophosphates and/or silicoalumophsophates of the AEL or VFI type useful as dyes, optical elements and as adsorbents have the following X-ray diffraction diagram:______________________________________ Interplanar spacing Relative intensity d(A) I/I.sub.o .times. 100 ______________________________________ 10.91 .+-. 0.1 26 .+-. 10 9.19 .+-. 0.1 41 .+-. 10 6.79 .+-. 0.05 16 .+-. 10 5.57 .+-. 0.05 52 .+-. 10 4.39 .+-. 0.05 39 .+-. 10 4.18 .+-. 0.05 71 .+-. 10 4.09 .+-. 0.05 33 .+-. 10 3.98 .+-. 0.05 57 .+-. 10 3.86 .+-. 0.05 68 .+-. 10 3.81 .+-. 0.05 100 ______________________________________and a composition described by the following formula:a quinizarin.b Al.sub.2 O.sub.3.c P.sub.2 O.sub.5.d SiO.sub.2where a is from 0.05 to 2, b and c are each from 8 to 12, and d is from 0 to 4.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: November 1, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Lauth, Ulrich Mueller, Wolfgang Hoelderich, Stefan Brode, Gerhard Wagenblast
  • Preparation of aluminophosphates and silicoaluminophosphates having the AEL structure using 1,2-bis-(4-pyridyl)-ethane
    Patent number: 5324493
    Abstract: Aluminophosphates and silicoaluminophosphates having the AEL structure are prepared under hydrothermal crystallization conditions by a process in which 1,2-bis-( 4-pyridyl)-ethane is used for the crystallization.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: June 28, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Wolfgang Hoelderich, Guenter Lauth