Patents by Inventor Helmut Martin

Helmut Martin 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: 6610884
    Abstract: A process is provided for preparing specific polycarboxylic acids by oxidative cleavage of double-bond compounds with hydrogen peroxide or hydrogen peroxide donors. The polycarboxylic acids thus obtained are notable for excellent acid stability, and consequently ease of handling in aqueous solution and are useful for treating cellulosic fibers or textile or paper materials produced therefrom.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: August 26, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Gerle, Hans-Albert Ehlert, Günter Franke, Helmut-Martin Meier
  • Publication number: 20030078305
    Abstract: Compounds of the general formula (I) 1
    Type: Application
    Filed: August 19, 2002
    Publication date: April 24, 2003
    Inventors: Helmut-Martin Meier, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Patent number: 6528576
    Abstract: The invention relates to textile treatment compositions containing (K1) mixtures of (A) 0 to 30% by weight of polyalcohols obtained by catalyzed reaction of formaldehyde with ketones bearing at least 4 replaceable hydrogen atoms adjacent to the carbonyl group, (B) 0 to 30% by weight of polyalcohols other than (A), (C) 0.1 to 10% by weight of adducts of fatty acids, fatty alcohols, alkyl- or dialkylamines, or alkylphenols with 2 to 100 mol of ethylene oxide, and (D) 70 to 99.9% by weight of an aqueous softener formulation containing 10 to 90% by weight of softener compounds based on the aqueous softener formulation,  wherein the total amount of (A)+(B) is ≧0.1% by weight, based on the sum total of the individual components (A) to (D), and (K2) a bisulphite-blocked polyisocyanate prepolymer, wherein the weight ratio of component K1 to component K2 is 0.1:1 to 5:1.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Ferdinand Kümmeler, Detlev Kierspe, Peter Selinger, Jacob-Cornelis Dijks, Winfried Guth
  • Publication number: 20020132737
    Abstract: The invention relates to compounds of the formula (I) 1
    Type: Application
    Filed: August 29, 2001
    Publication date: September 19, 2002
    Inventors: Helmut-Martin Meier, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Publication number: 20010018542
    Abstract: A process is provided for preparing specific polycarboxylic acids by oxidative cleavage of double-bond compounds with hydrogen peroxide or hydrogen peroxide donors. The polycarboxylic acids thus obtained are notable for excellent acid stability, and consequently ease of handling in aqueous solution and are useful for treating cellulosic fibers or textile or paper materials produced therefrom.
    Type: Application
    Filed: January 17, 2001
    Publication date: August 30, 2001
    Inventors: Michael Gerle, Hans-Albert Ehlert, Gunter Franke, Helmut-Martin Meier
  • Patent number: 5932678
    Abstract: The present invention relates to mixtures, containing A) reaction products from isocyanates and NCO-reactive silanes and B) carbosilane dendrimers, a process for preparing powder coatings from the mixtures and their use.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: August 3, 1999
    Assignee: Bayer AG
    Inventors: Helmut-Martin Meier, Michael Mager, Karsten Dierksen, Knud Reuter
  • Patent number: 5861471
    Abstract: The invention relates to polysulphone/polyether block copolycondensates having the recurring structural unit as in formula (I)--(--O--E--O--Ar.sup.1 --SO.sub.2 --Ar.sup.2 --)--W-- (I)whereinE is a divalent diphenolate radical andW is a polyether, polythioether or polyacetal possessing at least two hydroxyl groups and having an average molecular weight (M.sub.n) of from 400 to 30,000 andwherein the proportion of the radical W in the total polymer amounts to 5 to 99 wt. %,the preparation and use thereof for the production of moulded shapes, for example, membranes or catheter tubes.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: January 19, 1999
    Assignee: Bayer AC
    Inventors: Heinz Pudleiner, Ralf Dujardin, Rolf Wehrmann, Knud Reuter, Helmut-Martin Meier
  • Patent number: 5852138
    Abstract: The invention provides stabilizer mixtures comprising phosphines, silicon compound and optionally silicon-free oxetane compounds and/or silicon-free epoxide compounds and their use for stabilizing thermoplastic aromatic polycarbonates.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: December 22, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Hartmut Lower, Wolfgang Ebert, Wilfried Haese
  • Patent number: 5684202
    Abstract: The present invention relates to novel tertiary amines derived from bisphenoles, diepoxides and aromatic secondary amines, to a process for their preparation and to their use as hardening accelerators for ethylenically unsaturated cold hardenable acrylic and polyester resins.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: November 4, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Wolfgang Fischer, Horst Clemens
  • Patent number: 5668204
    Abstract: A thermoplastic molding composition containing an aromatic polycarbonate and a particular siloxane compound is disclosed. The composition which is based on a polycarbonate resin having bifunctional structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, or C.sub.7 -C.sub.12 -aralkyl,m is an integer from 4 to 7,R.sup.3 and R.sup.4 selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX stands for carbon,under the condition that R.sup.3 and R.sup.4 are both alkyl groups on at least one X atom, andcontains from 0.001 to 1% by weight of at least one siloxane corresponding to formula (II) ##STR2## wherein R denotes hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.6 -C.sub.10 -aryl or C.sub.1 -C.sub.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: September 16, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Dieter Freitag, Dieter Constant
  • Patent number: 5656684
    Abstract: The present invention provides special silanes, their preparation and their use as plastics additives for improving the mechanical and flameproofing properties of the plastics.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: August 12, 1997
    Assignee: Bayer AG
    Inventors: Burkhard Kohler, Klaus Horn, Helmut-Martin Meier
  • Patent number: 5627256
    Abstract: The present invention relates to thermoplastic aromatic polycarbonates having a content of special aryl phosphines, to their preparation, and to their use in the light engineering sector and in optics.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: May 6, 1997
    Assignee: Bayer AG
    Inventors: Helmut-Martin Meier, Hartmut L ower, Wolfgang Ebert, Claus Wulff
  • Patent number: 5623026
    Abstract: Siloxanes containing epoxy groups having the formula 1 ##STR1## Formula 1 whereinA means a C.sub.1 -C.sub.20 alkyl radical with epoxy groupsB means R.sup.1 or AR.sup.1, R.sup.2 independently of each other, means C.sub.1 -C.sub.20 alkyl or C.sub.6 -C.sub.10 aryla means zero or a whole number from 1-100b means zero or a whole number from 1-100c means a whole number from 1-5.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: April 22, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Buekers, Peter Bier, Sabine Schlitte, Hubertus Eversheim, Helmut-Martin Meier
  • Patent number: 5234982
    Abstract: A thermoplastic molding composition containing a polycarbonate resin, glass fibers and oxidized polyethylene is disclosed. The composition is suitable for the preparation of molded articles having an improved level of impact strength.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: August 10, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Kircher, Helmut-Martin Meier, Klaus Horn, Helmut Pilzecker
  • Patent number: 5194467
    Abstract: Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.12 -aralkyl,m stands for an integer from 4 to 7,R.sup.3 and R.sup.4, which are selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX denotes carbonunder the condition that R.sup.3 and R.sup.4 are both alkyl on at least one X atom andas the only thermo stabilizer, from 0.001 to 1% by weight of a siloxane corresponding to formula (II) ##STR2## wherein R and R' denote, independently of one another, C.sub.1 -C.sub.4 -alkyl or -aryl andx and y stand for the numbers 1,2 or 3 and x+y always add up to 4.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: March 16, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Dieter Freitag, Martin Wandel, Axel Sandquist
  • Patent number: 5036151
    Abstract: The invention relates to trimerized aliphatic isocyanates produced by special processes, to their use as mold release agents in thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyestercarbonates and/or thermoplastic aromatic polyesters, optionally using standard additives, to the readily demoldable molding compounds thus obtained on the basis of the thermoplastic polycarbonates, polyestercarbonates and/or polyesters and to processes for the production of these readily demoldable molding compounds.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: July 30, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Holger Ohst, Helmut-Martin Meier, Klaus Kircher
  • Patent number: 5015689
    Abstract: Unsaturated polyester resins to which thermotropic polymers have been added may be cured with a smaller quantity of copolymerizable monomer for a given viscosity of the unsaturated polyester and are useful for the production of moulded parts and grouting and filling compositions which have wide applications in the building industry, the electrical industry, boat building, medical technology and the motor vehicle industry.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: May 14, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Harald Pielartzik, Hermann Brinkmeyer
  • Patent number: 5011972
    Abstract: The new bisesters of unsaturated carboxylic acids corresponding to the following formula ##STR1## may be used in curable polyester resin mixtures which may in turn be used for the production of moldings. The curable mixtures obtainable from the new bisesters of unsaturated carboxylic acids show a higher glass transition temperature than normal polyester resins and, despite a higher crosslink density, show broader-mesh crosslinking.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: April 30, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Harald Pielartzik, Leo Morbitzer, Hanns-Peter Muller, Dietrich Braun
  • Patent number: 5004569
    Abstract: The invention relates to a process for the production of carboxylic acid esters from carboxylic acids and alcohols which is characterized in that neutral phosphites containing oxetane groups are used as esterification catalysts.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: April 2, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Klaus Kircher, Klaus Berg
  • Patent number: 4868320
    Abstract: The new 1,7,9,15-tetraoxa-4,12-diaza-8-silaspiro-[7.7]-pentadecanes, which are prepared by reaction of corresponding alkoxysilanes with corresponding alkanolamines, are used above all as hardening accelerators for unsaturated polyester resins and acrylic resins.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: September 19, 1989
    Assignee: Bayer Akteingesellschaft
    Inventors: Helmut-Martin Meier, Werner Kloker, Armin Sickert