Patents by Inventor Ghirmay Seyoum

Ghirmay Seyoum 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).

  • Publication number: 20080139690
    Abstract: The present invention relates to coating compositions for producing formable scratchproof coatings with dirt repellency effect, comprising A) from 1% by weight to 30% by weight of a prepolymer obtainable by free-radically polymerizing a mixture comprising A1) from 1 to 10 parts by weight of at least one sulphur compound containing at least 3 thiol groups and A2) from 90 to 99 parts by weight of alkyl (meth)acrylates, B) from 0.2% by weight to 10% by weight of at least one fluoroalkyl (meth)acrylate having 6 to 60 carbon atoms in the alcohol residue and including 13 to 121 fluorine atoms, C) from 20% by weight to 80% by weight of polyfunctional (meth)acrylates, D) from 0.01% by weight to 10% by weight of at least one initiator E) from 2% by weight to 75% by weight of at least one diluent and F) from 0% by weight to 40% by weight of customary additives G) from 0.01% by weight to 10% by weight of 2,2,3,3-tetrafluoropropyl methacrylate.
    Type: Application
    Filed: December 10, 2005
    Publication date: June 12, 2008
    Applicant: Roehm GmbH
    Inventors: Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20080032124
    Abstract: The invention relates to a method for producing a synthetic body from a synthetic material obtained by radical polymerization, which is coated on one or several sides with an Si-containing or inorganic substance. According to the inventive method, a substrate is coated with a lacquer composition which contains inorganic particles dissolved in a solvent which may optionally also contain a flow-control agent. One or more substrates that are coated in this manner can be used to construct a polymerization chamber, the coated sides facing the interior of the chamber. After radical polymerization of a monomer mixture in the presence of a polymerization initiator and a separating agent mixture the inward inorganic coating is transferred from the substrate to or onto the surfaces of the radically polymerized synthetic material or the corresponding synthetic body.
    Type: Application
    Filed: July 9, 2005
    Publication date: February 7, 2008
    Applicant: ROEHM GMBH
    Inventors: Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20070172673
    Abstract: The invention relates to coating agents having an antigraffiti effect. Said coating agents can be obtained according to a method consisting in condensing the organic silicon compounds of general formula (I): R1nSIX4-n, wherein R1 represents a group comprising 1-20 carbon atoms, X represents an alkoxy radical having 1-20 carbon atoms or halogen and n represents an even number between 0-3. The different radicals X or R1 can be identical or different and/or the precondensates can be obtained from said components. At least 50 wt. % of the silicon compounds, in relation to the total weight of the used silicon compounds, is represented by the formula R1SiX3, wherein R1 and X have the above-cited meaning, in order to form polysiloxanes until the ratio of signals R1SiO(OH) and signals R1SiO1,5 measured by NMR-spectroscopy ranges from 0.
    Type: Application
    Filed: March 25, 2004
    Publication date: July 26, 2007
    Applicant: Roehm GMBH & Co.KG
    Inventors: Patrick Becker, Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum, Reiner Lingelbach
  • Patent number: 7235305
    Abstract: The invention relates to self-cleaning synthetic bodies, obtained as follows: a) a siloxane coating (a) is applied to a synthetic substrate and cured, b) the polar fraction of the surface energy of the cured siloxane coating on the substrate is increased to a value of at least 10 mN/m and c) a coating (b) containing photocatalytically active TiO2 particles is applied to the synthetic substrate and cured.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: June 26, 2007
    Assignee: Röhm GmbH & Co. KG
    Inventors: Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20070098884
    Abstract: A process is described for producing mouldings from plastics by coating a moulding on one or more sides with a lacquer system, the lacquer system being composed of a binder or a binder mixture, optionally a solvent or solvent mixture, optionally other additives usual in lacquer systems and a thickener, and use can be made here of polymeric thickeners at from 0 to 20% content and oligomeric thickeners at from 0 to 40% content, in each case based on dry film (components a, c, d, e), from 5 to 500 parts by weight, based on a), of an electrically conductive metal oxide powder with a median primary particle size of from 1 to 80 nm and a percentage degree of aggregation of from 0.01 to 99%, from 5 to 500 parts by weight, based on a), of inert nanoparticles coated in a manner known per se and the lacquer cured.
    Type: Application
    Filed: August 6, 2004
    Publication date: May 3, 2007
    Applicant: Roehm GbmH & Co., KG
    Inventors: Thomas Hasskerl, Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20070003756
    Abstract: The invention relates to a method for production of a plastic body, made from a plastic obtained by means of a radical polymerisation with single- or multi-sided, inorganic coating containing silicon. The coating of a substrate is firstly achieved with a paint composition, containing inorganic particles in a solvent which can optionally contain additional flow improvers. One or more of such coated substrates can be used for the construction of a polymerisation chamber, in which the coated sides lie within the chamber. After radical polymerisation of a monomer mixture in the presence of a polymerisation initiator, the internal inorganic coating of the substrate transfers into or onto the surfaces of the radically polymerised plastic or of the plastic body. The invention further relates to the corresponding plastic body and the uses thereof.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 4, 2007
    Applicant: Roehm GMBH & Co. KG--
    Inventors: Patrick Becker, Norbert Brand, Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20060157675
    Abstract: A process is described for producing mouldings from plastics by coating a moulding on one or more sides with a lacquer system, the lacquer system being composed of a binder or a binder mixture, optionally a solvent or solvent mixture, optionally other additives usual in lacquer systems and optionally a thickener, and use can be made here of polymeric thickeners at from 0 to 20% content and oligomeric thickeners at from 0 to 40% content, in each case based on dry film (components a, c, d, e), from 5 to 500 parts by weight, based on a), of an electrically conductive metal oxide powder with a median primary particle size of from 1 to 80 nm and a percentage degree of aggregation of from 0.01 to 99%, from 5 to 500 parts by weight, based on a), of inert nanoparticles coated [sic] in a manner known per se and the lacquer cured.
    Type: Application
    Filed: March 2, 2004
    Publication date: July 20, 2006
    Applicant: ROEHM GMBH 7 CO. KG
    Inventors: Thomas Hasskerl, Stipan Katusic, Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20060068197
    Abstract: The invention relates to water-dispersing plastic bodies made of a plastic substrate, at least one water-dispersing, inorganic coating (a) and an adhesive promoting intermediate layer (b) which is arranged between the plastic substrate and the inorganic coating. The invention is characterised in that the intermediate layer comprises two polymers (A) and (B), whereby water on one layer of the polymer (A) forms and edge angle which is smaller than or equal to 73° at 20° C. and water on one layer of the polymer (B) forms an edge angle greater than or equal to 75° at 20° C.
    Type: Application
    Filed: October 18, 2003
    Publication date: March 30, 2006
    Inventors: Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum, Patrick Becker
  • Publication number: 20060063011
    Abstract: The invention relates to water-dispersing plastic bodies made of a plastic substrate, at least one water-dispersing, inorganic coating (a) and an adhesive promoting intermediate layer (b) arranged between the plastic substrate and the inorganic coating. Said coating can be obtained in such a manner that the intermediate layer applied is (b) made of a mixture with a compound which has an evaporating number smaller than or equal to 20. The sum of the layer thicknesses of the inorganic coating (a) and the intermediate layer (b) is 07 ?m at the most.
    Type: Application
    Filed: October 18, 2003
    Publication date: March 23, 2006
    Applicant: ROEHM GMBH & CO. KG
    Inventors: Thomas Hasskerl, Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20060058458
    Abstract: The invention relates to coating agents for producing rigid coatings resistant to scratching and soiling which contain: A) 1-30 mass % polymer produced by free radical polymerisation of a mixture containing A1) 1-10 weight parts of at least one sulphur compound containing at least 3 thiol groups and A2) 90-99 weight parts of alkylmethacrylate; B) 0.2-10% mass of at least one fluoralkyl(meth)acrylate having from 3 to 30 carbon atoms in an alcohol radical which comprises from 6 to 61 fluorine atoms; C) 20-80 mass % multifunctional (methyl)acrylate; D) 0.01-10 mass % of at least one initiator; E) 5-75 mass % of at least one solvent and F) 0-40 mass % ordinary additives. The rigid moulded bodies resistant to scratching and soiling and comprising a plastic substrate and scratching resistant coating are also disclosed.
    Type: Application
    Filed: October 18, 2003
    Publication date: March 16, 2006
    Applicant: Roehm Gmbh & Co. KG
    Inventors: Thomas Hasskerl, Patrick Becker, Rolf Neeb, Ghirmay Seyoum, Reiner Lingelbach
  • Publication number: 20050118434
    Abstract: The invention relates to self-cleaning synthetic bodies, obtained as follows: a) a siloxane coating (a) is applied to a synthetic substrate and cured, b) the polar fraction of the surface energy of the cured siloxane coating on the substrate is increased to a value of at least 10 mN/m and c) a coating (b) containing photocatalytically active TiO2 particles is applied to the synthetic substrate and cured.
    Type: Application
    Filed: May 20, 2003
    Publication date: June 2, 2005
    Applicant: ROEHM GBMH & CO. KG
    Inventors: Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20050016213
    Abstract: The invention relates to polymerisable compositions obtained as follows: a) reaction of A) between 0.5 and 5 parts by weight of at least one silicon compound of formula (I): SimR1nR2oOrXs with B) between 0.01 and 2.0 parts by weight of water C) between 0 and 4.0 parts by weight of at least one acid; and b) subsequent addition of D) between 0.5 and 5 parts by weight of at least one (meth)acrylate of formula (II), E) between 98.99 and 55 parts by weight of at least one polymerisable, ethylenically unsaturated monomer, different from D) and F) between 0 and 30 parts by weight of at least one polymer and/or copolymer, which is obtained by the polymerisation or copolymerisation of at least one ethylenically unsaturated monomer E). The groups R1, R2, R3, R4 and X, in addition to the indices m, n, o, r and s are defined as cited in the description. The invention also relates to polymers and laminate glass obtained from the composition, to a method for producing laminate glass and to the use thereof.
    Type: Application
    Filed: February 21, 2003
    Publication date: January 27, 2005
    Inventors: Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum, Wolfgang Wiebel
  • Publication number: 20040213989
    Abstract: The invention relates to a process for producing plastics mouldings with an electrically conductive coating by conventionally coating a moulding on one side with a varnish system composed of a) a binder, b) if desired, a solvent, c) if desired, further additives customary in varnish systems and d) from 10 to 300 parts by weight (based on component a)) of an electrically conductive metal oxide powder having an average primary particle size of from 5 to 130 nm and before curing the varnish film treating or storing the moulding in such a way that in that half of the varnish film which faces the boundary layer with the air the metal oxide powder particles accumulate in such a way that at least 65% of the particles are located in this half of the varnish film, and then curing the varnish film or allowing it to cure. The invention further relates to the mouldings which are producible in accordance with the invention.
    Type: Application
    Filed: June 21, 2004
    Publication date: October 28, 2004
    Inventors: Thomas Hasskerl, Sabine Servaty, Rolf Neeb, Ghirmay Seyoum, Stipan Katusic, Horst Miess