Patents by Inventor Helmut Eschwey

Helmut Eschwey 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: 5466517
    Abstract: A spunbonded fabric comprises continuous thermoplastic filaments, which adhere to one another at their intersecting points without binder, and whose material comprises at least 50 weight % biodegradable polycaprolactone having a mean molecular weight of from 35,000 to 70,000. In the production process of the spunbonded fabric, no additional stabilization step is necessary after the filaments are deposited.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: November 14, 1995
    Assignee: Carl Freudenberg
    Inventors: Helmut Eschwey, Monika Giesen-Wiese, Maria Grill, Ararad Emirze, Hans-Peter Seidler, Bernhard Klein, Michael Kauschke
  • Patent number: 4973320
    Abstract: A medical device which can be introduced into the body tissue of a human or animal comprises a matrix of a polyurethane elastomer with organic silicone polymer units built into the main polymer chain and an oligodynamic agent spatially distributed uniformly within the matrix. The oligodynamic agent releases bacteriocidal or microbicidal metal ions when exposed to body tissues. The method for manufacturing the medical device is characterized by the addition of the oligodynamic agent in a solid or dissolved form prior to the reaction of the educts with isocyanate.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: November 27, 1990
    Assignee: Firma Carl Freudenberg
    Inventors: Otto Brenner, Wolfgang Ermert, Helmut Eschwey, Gerd Esswein, Gunter Schuhmacher
  • Patent number: 4902559
    Abstract: Disclosed is an absorbent body of nonwoven material formed of randomly distributed thermoplastic endless filaments which contain embedded hydrophilic or oleophilic staple fibers and in some cases swelling particles. Also disclosed is a one-step process for the production of the absorbent body.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: February 20, 1990
    Assignee: Firma Carl Freudenberg
    Inventors: Helmut Eschwey, Lothar Hackler, Ludwig Hartmann, Michael Kauschke, Bernhard Klein, Thomas Kumpel, Hans-Achim Kunkel, Torsten Nahe, Ivo Ruzek
  • Patent number: 4343728
    Abstract: The invention herein relates to the preparation of solution polymerizates of acrylic and methacrylic esters. More particularly, this invention relates to a process for the preparation of solution polymerizates of acrylic or methacrylic acid esters of alcohols wherein acrylic or methacrylic monomers are polymerized in a solvent of high-boiling alcohols of from 8 to 40 carbon atoms and 1 to 6 hydroxyl groups, the total batch to be polymerized containing from about 15 to 85 percent by weight of polymerizable substance, based on the weight of the total batch. This invention also relates to a method of using said solution polymerizates to improve the flow properties of lacquers.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: August 10, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Eschwey, Bernd Wegemund, Wolfgang Gress
  • Patent number: 4329381
    Abstract: Method for providing corrosion protective coatings for metal surfaces. The coatings contain conventional coating components to which are added at least one zinc or lead salt of five- or six-membered heterocyclic compounds substituted by at least one hydroxyl or mercapto group and the ring includes at least one nitrogen atom and at least two conjugated double bonds, of which at least one has the formation. ##STR1## as corrosion inhibitors.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: May 11, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Helmut Eschwey, Joachim Galinke, deceased, Renate Galinke, nee Jansen, heir, Heinrich Linden, Bernd Wegemund, Norbert Wiemers
  • Patent number: 4271051
    Abstract: This invention is directed to modified alkyd resins containing free hydroxyl groups, said alkyd resins being prepared by reacting glycide and/or glycerol with alkyd resins having acid numbers of from about 30 to 180 until the acid number is from about 5 to 35. The invention is also directed to the use of the modified alkyd resins as lacquer binders.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: June 2, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Helmut Eschwey
  • Patent number: 4259219
    Abstract: A water-dilutable lacquer based on an alkyd or acrylate resin containing carboxyl groups, which have been neutralized with an amine containing at least one 2,3-dihydroxy propyl group per amine nitrogen. The lacquers according to the invention are particularly suitable for use in the production of baked coatings on thermostable substrates, metal sheets, or shaped metal parts.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: March 31, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Helmut Eschwey, Manfred Gorzinski
  • Patent number: 4233194
    Abstract: A water-dispersed film-forming vehicle suitable for lacquers is disclosed. The vehicle consists of an aqueous dispersion of an air-drying, low acid-number alkyd resin dispersed by the use of a nonionic surfactant consisting of an adduct of ethylene oxide units onto a phenolic compound substituted by a hydrophobic aliphatic radical containing olefinic double bonds, preferably, containing 12 to 18 carbon atoms and 1 to 5 double bonds. The adduct includes 5 to 40 ethylene oxide units per mol. The water-based dispersion diluent in which the alkyd resin is dispersed may include pigments, siccatives for the alkyd drying resin and optionally processing aid solvents.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: November 11, 1980
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA)
    Inventors: Helmut Eschwey, Joachim Galinke, deceased, Norbert Wiemers
  • Patent number: 4221685
    Abstract: A water-dispersed film-forming vehicle suitable for lacquers is disclosed. The vehicle consists of an aqueous dispersion of an air-drying alkyd resin dispersed by the use of a surfactant consisting of an adduct of allyl glycidyl ethers and ethylene oxide units onto a hydrophobic aliphatic radical having a replaceable hydrogen atom, optionally substituted by an aryl radical. The hydrophobic aliphatic radical may be a fatty-acid radical of from 6 to 26 carbon atoms and the aryl substituent is a phenol. The adduct includes 2 to 10 allyl glycidyl units and 5 to 25 ethylene oxide units per mol. The water-based dispersion diluent in which the alkyd resin is dispersed may include pigments, siccatives for the alkyd drying resin and optionally processing-aid solvents.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: September 9, 1980
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Helmut Eschwey, Joachim Galinke, deceased, Norbert Wiemers
  • Patent number: 4171293
    Abstract: Aqueous dispersions of cross-linkable alkyd and/or amino resins, which contain surface active amine oxides of the formula ##STR1## wherein R.sub.1 is a hydrocarbon radical of 8 to 30 carbon atoms, which optionally contains 1 to 3 ether groups and/or up to 4 hydroxyl groups and R.sub.2 and R.sub.3 are independently an aliphatic or cycloaliphatic hydrocarbon radical of 1 to 16 carbon atoms, which optionally are interrupted by heteroatoms and/or together contain up to 8 hydroxyl groups, are useful as coating agents or varnish binding agents.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: October 16, 1979
    Assignee: Henkel Kommanditgsellschaft auf Aktien
    Inventors: Helmut Eschwey, Wolf-Dieter Willmund, Wolfgang Gress
  • Patent number: 4156665
    Abstract: Aqueous dispersions of cross-linkable alkyd and/or amino resins, which contain reactive surface active compounds produced by addition of glycide and/or ethylene oxide to a starting compound having a hydrophobic aliphatic radical, optionally substituted by an aryl radical, which contains al least one labile hydrogen atom which can react with an epoxide, wherein the number of hydroxyl groups in said surface active compounds is between 2 and 30, are useful as coating agents or varnish binding agents.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: May 29, 1979
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Eschwey, Joachim Galinke, Norbert Wiemers, Wolfgang Gress
  • Patent number: 3975339
    Abstract: A process for the manufacture of polymers of net-shaped crosslinked structure and with uniform length of the crosslinks. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with bifunctional or polyfunctional coupling agents. The polymers of net-shaped crosslinked structure have macroporous properties and can be employed, for example, as gels in gel permeation chromatography or as carriers in the synthesis of peptides.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: August 17, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Walther Burchard, Helmut Eschwey
  • Patent number: 3951931
    Abstract: A process for the manufacture of polymeric compounds which have any desired number of functional end groups. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with reactive low molecular weight compounds. The polymeric compounds which have functional end groups can be employed, for example, as emulsifiers, secondary dispersions, secondary dispersing agents or polymeric carrier substances.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: April 20, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Walther Burchard, Helmut Eschwey