Patents Represented by Attorney Herbert B. Keil
-
Patent number: 5200450Abstract: The thermoplastic molding compositions contain as essential componentsA) from 96 to 99.9% by weight of at least one polyamide,B) from 0.1 to 4% by weight of one or more dialkyl ketones of the general formula I ##STR1## where R and R' are each alkyl of from 10 to 30 carbon atoms, and also, based on the sum total of A) and B),C) from 0 to 40% by weight of an impact modifying rubber,D) from 0 to 60% by weight of fibrous or particulate fillers or a mixture thereof, andE) from 0 to 120% by weight of a modified polyphenylene ether.Type: GrantFiled: October 1, 1991Date of Patent: April 6, 1993Assignee: BASF AktiengesellschaftInventors: Gerd Blinne, Walter Goetz, James Hurley, Herbert Gutsche, Klaus Muehlbach
-
Patent number: 5198959Abstract: The invention relates to a demagnetizing device for magnetic recording media, so-called pancakes, wound up in the form of a tape, which device consists of a cylindrical coil (1), the field distribution (3) of which extends essentially parallel to the winding plane (2) of the recording medium (4), while the pancakes (4) can be inserted into the coil (1) in the axial direction by a lifting device (5). The compact form enables an entire pancake stack to be demagnetized at the same time (FIGURE).Type: GrantFiled: March 20, 1991Date of Patent: March 30, 1993Assignee: BASF AktiengesellschaftInventors: Bernd Scholtysik, Jose Toral, Hermann Brandstetter, Manfred Baumann
-
Patent number: 5196609Abstract: The preparation of 3-alkoxycarbonyl propenals and 3-dialkoxymethyl propenals of the general formulae Ia and Ib respectively: ##STR1## (R.sup.1 =C.sub.1 -C.sub.3 -alkyl group; R.sup.2 and R.sup.3 =hydrogen, methyl, or ethyl; and R.sup.4 and R.sup.5 =C.sub.1 -C.sub.4 -alkyl groups, which may be joined to form a 5-membered or 6-membered ring), is effected by reacting a corresponding alcohol of the general formula IIa or IIb ##STR2## with oxygen or an oxygen-containing gas in the gas phase in the presence of a metal from Group IB of the Periodic Table or a compound of one such metal acting as catalyst.The target products serve as intermediates for the synthesis of carotenoids.Type: GrantFiled: March 2, 1992Date of Patent: March 23, 1993Assignee: BASF AktiengesellschaftInventors: Werner Aquila, Hans-Ulrich Scholz, Hartwig Fuchs, Wolfgang Krause, Joachim Paust, Werner Hoffmann
-
Patent number: 5194068Abstract: The invention relates to a fuel for gasoline engines and diesel engines, containing small amounts of an ester of a mono- and/or poly-carboxylic acid with an alkyl alkanolamine or alkyl aminopolyalkylene glycol of the general formula I ##STR1## in which R.sub.1 is a C.sub.6 -C.sub.30 -alkyl radical,R.sub.2 is a C.sub.6 -C.sub.30 -alkyl radical or a hydroxyalkyl radical of the general formula II ##STR2## and R.sub.3 is a hydroxylalkyl radical of formula II, in which R.sub.4 is hydrogen or a C.sub.1 -C.sub.6 -alkyl radical and m is an integer from 0 to 100.Type: GrantFiled: June 24, 1991Date of Patent: March 16, 1993Assignee: BASF AktiengesellschaftInventors: Juergen Mohr, Knut Oppenlaender, Roland Schwen, Hans P. Rath, Juergen Thomas, Hans-Henning Vogel
-
Patent number: 5194675Abstract: Methyl formate is prepared by converting methanol over a copper-containing catalyst at elevated temperatures and in the gas phase by a process in which the catalyst used contains from 30 to 80% by weight of copper, calculated as CuO, as well as from 20 to 70% by weight of a magnesium silicate, calculated as MgO plus SiO.sub.2, which has a molar ratio of MgO/SiO.sub.2 of from 0.3 to 1.5, and may additionally be doped with the metals zinc, chromium and/or barium, each in an amount of not more than 1.5% by weight, calculated as ZnO, Cr.sub.2 O.sub.3 and BaO.Type: GrantFiled: January 9, 1992Date of Patent: March 16, 1993Assignee: BASF AktiengesellschaftInventors: Klaus Joerg, Franz-Josef Mueller, Matthias Irgang, Laszlo Marosi, Gerhard Borchert
-
Patent number: 5193085Abstract: In a magnetooptical computer disk having one or more optically transparent dimensionally stable substrates and one or more double layer systems consisting of two exchange-coupled magnetic layers which consist of alloys of rare earth metals with transition metals and have vertical magnetic anisotropy, the first magnetic layer adjacent to the substrate has a composition corresponding to the formula IRE.sub.x TM.sub.100-x-y-a Pt.sub.y A.sub.a Iand the second magnetic layer, which is arranged on that side of the first magnetic layer which faces away from the substrate, has a composition corresponding to the formula IIRE.sub.u TM.sub.100-u-b B.sub.b IIwhereRE is one or more elements from the group consisting of Gd, Tb, Dy and Ho,TM is one or more elements from the group consisting of Fe and Co,A and B independently of one another are elements from the group consisting of Cr, Nb, Ta, Al, Si, Ni and Mo,and5.ltoreq.x.ltoreq.30,0.5.ltoreq.y.ltoreq.20,15.ltoreq.u.ltoreq.30,0.ltoreq.a.ltoreq.25 and0.5.ltoreq.b.ltoreq.Type: GrantFiled: September 17, 1991Date of Patent: March 9, 1993Assignee: BASF AktiengesellschaftInventors: Klaus Harth, Hartmut Hibst
-
Patent number: 5191124Abstract: Sulfonium salts of the general formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and are aliphatic and/or aromatic radicals which may contain heteroatoms, or two of the radicals R.sup.1 and R.sup.3 are bonded to one another to form a ring, with the proviso that one or more of the radicals R.sup.1 to R.sup.3 contain one or more acid-cleavable groups, or one of the radicals R.sup.1 to R.sup.3 is bonded to one or more further sulfonium salt radicals, if desired via acid-cleavable groups, and X.sup..crclbar. is a non-nucleophilic counter-ion, are suitable as photoinitiators for cationic polymerization.Type: GrantFiled: June 30, 1988Date of Patent: March 2, 1993Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Andreas Boettcher
-
Patent number: 5190573Abstract: Cyclohexenone oxime ethers ##STR1## where R.sup.1 is alkyl;A is substituted or unsubstituted alkylene or alkenylene, where methylene is replaced by an oxygen atom, a sulfur atom, a sulfoxyl group, a sulfonyl group or --NR.sup.a --,Z is phenyl or a 5- or 6-membered heteroaromatic structure;X is substituted or unsubstituted amino, nitro, cyano, halogen, alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, substituted or unsubstituted benzyloxycarbony or phenyl;n is 0 to 3, or 1 to 5 where X is halogen;R.sup.Type: GrantFiled: May 8, 1991Date of Patent: March 2, 1993Assignee: BASF AktiengesellschaftInventors: Ulf Misslitz, Norbert Meyer, Juergen Kast, Norbert Goetz, Albrecht Harreus, Bruno Wuerzer, Helmut Walter, Karl-Otto Westphalen, Matthias Gerber
-
Patent number: 5166270Abstract: Thermoplastic molding materials obtained from polymers based on vinyl chloride contain from 2 to 80% by weight of a polymer ofa) from 2 to 100% by weight of a monomer of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and Ar is an isoaromatic group, or of a mixture of these monomers, andb) from 0 to 98% by weight of a monomer of the general formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl and Alk is C.sub.1 -C.sub.8 -alkyl, or of a mixture of these monomers, andc) from 0 to 5% by weight of further monomers capable of undergoing free radical polymerization (monomers III).The molding materials have a high heat distortion resistance.Type: GrantFiled: March 29, 1990Date of Patent: November 24, 1992Inventors: Klaus-Dieter Hungenberg, Rainer Bueschl
-
Patent number: 4681328Abstract: A shaft seal containing magnetic liquid, for pump shafts or the like, consists of a permanent magnet which surrounds the shaft and is a distance away and one or more pole pieces connected to the said magnet. The pole piece, together with the shaft surface, forms an air gap in which the magnetic liquid is held by the magnetic field, so that a liquid sealing ring is produced. A volume of gas located between the magnetic liquid seal and the shaft channel to the medium prevents the magnetic liquid from coming into contact with the medium.Type: GrantFiled: November 6, 1986Date of Patent: July 21, 1987Assignee: BASF AktiengesellschaftInventors: Klaus Ritter, Klaus Michaelsen, Gunther Mair
-
Patent number: 4681617Abstract: Phospholipid concentrates from natural or synthetic phospholipids and physiologically acceptable organic solvents and further additives of the following composition:20-60 wght. % phospholipids0-23 wght. % glycerin5-62.5 wght. % organic solvent0-30 wght. % co-emulsifier0-35 wght. % dissolving intermediary0-15 wght. % water0-15 wght. % vegetable oil or neutral oilThe phospholipids are a mixture of phosphatidyl choline, phosphatidyl ethanol amine, N-acetyl phosphatidyl ethanol amine, and other phosphatides, the concentrates perferably containing a mixture of 10-50 wght. % phosphatidyl choline, 10-30 wght. % phosphatidyl diethanol amine, 10-30 wght. % N-acylphosphatidyl ethanol amine, and 3-10 wght. % other phosphatides, in relation to the total quantity of phospholipids. The phospholipid concentrates are particularly suitable as auxiliary agents in the production and application of spray mixtures containing plant protectants.Type: GrantFiled: July 17, 1985Date of Patent: July 21, 1987Assignee: A. Nattermann & Cie, GmbHInventors: Miklos Ghyczy, Paul-Robert Imberge, Armin Wendel
-
Patent number: D244806Type: GrantFiled: December 18, 1975Date of Patent: June 28, 1977Inventor: Barbara Pryor
-
Patent number: D249073Type: GrantFiled: June 13, 1977Date of Patent: August 22, 1978Assignee: James L. HardenInventor: James L. Harden
-
Patent number: D253692Type: GrantFiled: March 20, 1978Date of Patent: December 18, 1979Assignee: Lighthouse Industries, Inc.Inventor: Gordon R. Lange
-
Patent number: D254119Type: GrantFiled: November 25, 1977Date of Patent: February 5, 1980Assignee: Mark Design Ltd.Inventor: Irving L. Mark
-
Patent number: D254921Type: GrantFiled: February 3, 1978Date of Patent: May 6, 1980Assignee: Fritkin-Jones Design Group Inc.Inventor: Ronald K. Fritkin
-
Patent number: D256744Type: GrantFiled: November 25, 1977Date of Patent: September 9, 1980Inventor: Irving L. Mark