Patents by Inventor Dietmar Moench

Dietmar Moench 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: 6491786
    Abstract: A welding head for heated tool welding, particularly of thermoplastic materials. The welding head permits independent heating of the welding point on a body and the welding point on a welding part. The welding head has a gripper for receiving the welding part to be welded to the body. It also has a first welding mirror for heating the welding point on the body. A second welding mirror is used for heating the welding point on the welding part. The first welding mirror and the gripper are placed on a common supporting member, which is displaceable by drive means so that alternately the first welding mirror and the gripper are oriented towards the welding point on the body.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: December 10, 2002
    Assignee: bielomatik Leuze GmbH + Co.
    Inventor: Dietmar Moench
  • Patent number: 6488793
    Abstract: A device and a method for heated tool welding. The heated tool welding device has a welding held, which is fixed to an infeed drive for displacing the welding head. The infeed drive is an industrial robot. The welding head is positioned by the industrial robot in a coordinate-controlled manner up to a clearly defined changeover position with respect to the welding point on the body and in a force-controlled manner from the changeover point to the welding point.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: December 3, 2002
    Assignee: Bielomatik Leuze GmbH + Co.
    Inventors: Joachim Natrop, Dietmar Moench
  • Publication number: 20010006087
    Abstract: The invention relates to a device and a method for heated tool welding.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Applicant: bielomatik Leuze GmbH & Co.
    Inventors: Joachim Natrop, Dietmar Moench
  • Publication number: 20010006170
    Abstract: The invention relates to a welding head for heated tool welding, particularly of thermoplastic materials.
    Type: Application
    Filed: December 18, 2000
    Publication date: July 5, 2001
    Applicant: bielomatik Leuze GmbH & Co.
    Inventor: Dietmar Moench
  • Patent number: 5744001
    Abstract: Aqueous pigment slurries which contain up to 80% by weight of a finely divided pigment in dispersed form and from 0.1 to 5% by weight of dispersants which are obtainable by reacting(a) polyalkylenepolyamines, polyamidoamines, polyamidoamines grafted with ethyleneimine, polyetheramines and mixtures of the stated compounds and(b) monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds and, if required,(c) bifunctional or polyfunctional crosslinking agents which have a halohydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as a functional group,to give water-soluble condensates which, in 20% strength by weight aqueous solution at 20.degree. C., have a viscosity of at least 100 mPa.s are prepared by milling or dispersing pigments in the presence of the dispersants and water and are used as additives to paper stock in the production of filler-containing paper.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: April 28, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Friedrich Linhart, Dietmar Moench, Guenter Scherr, Wolfgang Reuther, Primoz Lorencak
  • Patent number: 5641855
    Abstract: There are described water-soluble condensation products of amino-containing compounds and crosslinkers, obtainable by reacting(a) polyalkylenepolyamines, polyamidoamines, ethylene-imine-grafted polyamidoamines, polyetheramines and mixtures thereof, with(b) monethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds such as glycidic acid, glycidamide or glycidyl esters, and(c) at least bifunctional crosslinkers having a halo-hydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as functional group,to form water-soluble condensation products having a viscosity of at least 100 mPas in a 20% strength by weight aqueous solution at 20.degree. C., processes for preparing the water-soluble condensation products by reacting the abovementioned compounds of groups (a), (b) and (c), and the use of the condensation products as drainage, flocculation and retention aids in papermaking.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: June 24, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Scherr, Wolfgang Reuther, Dietmar Moench, Friedrich Linhart, Juergen Weiser
  • Patent number: 5630907
    Abstract: Copolymers which are obtained by copolymerization ofa) from 5 to 99 mol % of N-vinylcarboxamides,b) from 95 to 1 mol % of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof, and if required,c) up to 30 mol % of other monoethylenically unsaturated compounds, and if required,d) up to 2 mol % of crosslinking agents,and subsequent partial or complete elimination of the acyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking, and the dry and wet strength of the paper.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: May 20, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Claudia Nilz, Walter Denzinger, Heinrich Hartmann, Michael Kroener, Friedrich Linhart, Rudolf Schuhmacher, Dietmar Moench, Andreas Stange
  • Patent number: 5536370
    Abstract: Condensates of polyalkylenepolyamines which are obtainable by(a) partial amidation of polyalkylenepolyamines and(b) condensation of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agentsto give crosslinked polyalkylenepolyamines which, in 20% strength aqueous solution at 20.degree. C., have a viscosity of at least 100 mPa.s, processes for the preparation of the condensates of polyalkylenepolyamines by partial amidation of polyalkylenepolyamines with carboxylic acids, carboxylic esters, carboxylic anhydrides or carbonyl halides and crosslinking of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agents, from 0.001 to 10 parts by weight of a crosslinking agent being used per part by weight of the partially amidated polyalkylenepolyamines, and the use of the resulting condensates as drainage aids, flocculants, retention aids and fixing agents in papermaking.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Scherr, Wolfgang Reuther, Primoz Lorencak, Dietmar Moench, Friedrich Linhart, Juergen Weiser
  • Patent number: 5292800
    Abstract: Water-in-oil emulsions of water-soluble or water-swellable polymers, in which the oil phase of the emulsion consists of not less than 50% by weight of an oil of vegetable or animal origin, contain, as water-in-oil emulsifiers, compounds which are obtainable by(A) reacting a C.sub.10 -C.sub.22 -fatty alcohol with epichlorohydrin in a molar ratio of from 1:0.5 to 1:1.5 to give a glycidyl ether,(B) reacting the glycidyl ether with (1) a saturated C.sub.2 -C.sub.6 -alcohol containing from 2 to 6 OH groups or (2) the monoether thereof with a C.sub.10 -C.sub.22 -fatty alcohol, in a molar ratio of glycidyl ether to (1) or (2) of from 1:0.5 to 1:6, in the presence of an acid or base and(C) alkoxylating the reaction product from (B) with one or more C.sub.2 -C.sub.4 -alkylene oxides in a molar ratio of from 1:1 to 1:6,if necessary, from 5 to 95% by weight of the stated water-in-oil emulsifier being replaced with other water-in-oil emulsifiers.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: March 8, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Moench, Heinrich Hartmann, Hans-Ulrich Wekel
  • Patent number: 5290880
    Abstract: N-vinylformamide is polymerized with or without other water-soluble monoethylenically unsaturated monomers and with or without water-insoluble monoethylenically unsaturated monomers in not less than 30% strength by weight aqueous monomer solutions in the presence of a polymerization initiator at not more than 150.degree. C. in a kneader by a method in which the polymerization is carried out to such an extent that the initially formed water-containing polymer gel disintegrates into fine particles and the finely divided polymer obtainable in this manner is hydrolyzed, preferably in the kneader, so that not less than 0.1 mol % of the N-vinylformamide units present in the polymer are converted into vinylamine units. The polymers obtainable in this manner dissolve readily in water. The aqueous solutions are used, for example, in papermaking and tertiary oil production.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: March 1, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Moench, Michael Kroener, Enrique Freudenberg, Heinrich Hartmann, Norbert Sendhoff
  • Patent number: 5262008
    Abstract: Paper, board and cardboard are produced by draining a paper stock in the presence of a nonhydrolyzed copolymer which contains, as polymerized units,(a) from 99 to 1 mol % of N-vinylformamide and(b) from 1 to 99 mol % of one or more water-soluble basic monomers of the formula ##STR1## where R.sup.1 is H, CH.sub.3 or C.sub.2 H.sub.5, R.sup.2, R.sup.3 and R.sup.4 are each H, CH.sub.3, C.sub.2 H.sub.5 or (--CH.sub.2 --CH.sub.2 --O--).sub.n H, R.sup.5 and R.sup.6 are each C.sub.1 -C.sub.10 -alkyl, A is C.sub.1 -C.sub.6 -alkylene, n is from 1 to 6 and Y.sup..crclbar. is an anion, in an amount of from 0.01 to 3.5% by weight, based on dry paper stock.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: November 16, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Moench, Heinrich Hartmann, Enrique Freudenberg, Andreas Stange
  • Patent number: 5225088
    Abstract: Nonhydrolyzed copolymers of(a) from 99 to 1 mol % of N-vinylformamide and(b) from 1 to 99 mol % of one or more water-soluble dialkylaminoalkylacrylamides in the form of the salts or quaternized products or a dialkylammonium compoundare used as agents for the treatment of wastewaters and sludges.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: July 6, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Moench, Heinrich Hartmann, Karl-Heinz Buechner
  • Patent number: 4981913
    Abstract: Bridged, water-soluble copolymers are obtainable by(A) copolymerization of a monomer mixture of(a) from 50 to 99 mol % of acrylamide and/or methacrylamide,(b) from 50 to 1 mol % of a monoethylenically unsaturated monomer containing actual groups and(c) from 0 to 20 mol % of monomers which differ from (a) and (b),in the presence of a polymerization initiator under conditions such that the acetal groups of the monomers (b) undergo virtually no hydrolysis,(B) hydrolysis of the acetal groups of the monomers (b), present as copolymerized units in the copolymers (A),(C) condensation of the copolymers (B) containing aldehyde groups at a pH above 5, at most to a degree such that the resulting condensates are still water-soluble and(D) stopping of the condensation reaction by adding acid until the pH reaches 3 or less,and are used as paper stock additives in papermaking for increasing the wet strength of paper.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: January 1, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Moench, Andreas Stange, Joerg Liebe, Heinrich Hartman, Franz Merger, Manfred Schwartz