Patents by Inventor Manfred Ratzsch

Manfred Ratzsch 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: 20050020750
    Abstract: The invention relates to a method for curing aminoplast resins according to which inorganic particles, which have a laminated structure and which comprise interlamellarly exchangeable cations of the flowing type: alkali cations, alkaline-earth cations, aluminium cations, iron cations and/or manganese cations, are used as curing agents. The invention also relates to aminoplast resins cured in such a manner, to semi-finished products and to molding materials.
    Type: Application
    Filed: December 12, 2001
    Publication date: January 27, 2005
    Inventors: Manfred Ratzsch, Rene Dicke, Daniel Jocham
  • Patent number: 6818726
    Abstract: Polymers are prepared from A) 60 to 95 percent by weight of a mixture including A1) 20 to 70 percent by weight of hydroxyalkyl amino triazines and A2) 30 to 80 percent by weight of bis(hydroxyalkyl) amino triazines B) 5 to 40 percent by weight of polyfunctional compounds selected from one or more of B1) polyisocyanates and/or oligomeric polyesters or polyethers with isocyanate end groups, B2) aliphatic dicarboxylic acids, esters, chlorides or anhydrides, or aromatic polybasic acids, esters, chlorides or anhydrides, B3) aliphatic or aromatic diglycidal compounds or triglycidyl compounds, and, optionally, C) 1 to 20 percent by weight of aliphatic, cycloaliphatic or aromatic dihydroxy compounds, polyalkylene glycols and aliphatic aldehydes.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: November 16, 2004
    Assignee: Agrolinz Melamin GmbH
    Inventors: Manfred Rätzsch, Martin Burger, Manfred Arnold, Willy Frank
  • Patent number: 6818768
    Abstract: Mixtures of triazine derivatives free from polyalkylene oxide Mixtures of triazine derivatives free from polyalkylene oxide are produced from 20 to 70 percent by weight of triazine derivatives with hydroxyalkyl amino groups and 80 to 30 percent by weight of triazine derivatives with bis(hydroxyalkyl) imino groups by catalytic reaction of alkylpropylene oxides with triazine derivatives at a melamine derivative/alkylpropylene oxide molar ratio of 1:1.5 to 1:10 in the presence of metal alkyls, metal hydrides, metal alcoholates and/or metal alkylamides as catalysts. The triazine derivative/hydroxy group mixtures free from polyalkylene oxide are particularly suited for producing plastic materials, flame retardants, additives, pharmaceuticals, textile auxiliaries, and paints or finishes.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: November 16, 2004
    Assignee: Agrolinz Melamin GmbH
    Inventors: Manfred Rätzsch, Martin Burger, Manfred Arnold, Willy Frank
  • Publication number: 20040054034
    Abstract: The invention relates to polymer modified inorganic particles with a layer structure with an average particle diameter of 5 nm to 20,000 nm, containing 20 to 5000 mass % interlamellarly, in relation to the anhydrous inorganic particle, of a mixture of aminoplasts and water. These polymer modified inorganic particles are produced by swelling the inorganic particles with aldehydes and then reacting the inorganic particles with multifunctional C1-C30 amino compounds. The invention also relates to plastic containing polymer modified particles with a layer structure and to semi-finished products and moulded material produced from the same.
    Type: Application
    Filed: October 21, 2003
    Publication date: March 18, 2004
    Inventors: Manfred Ratzsch, Rene Dicke, Markus Machherndl, Gerd Granner
  • Publication number: 20030050474
    Abstract: Mixtures of triazine derivatives free from polyalkylene oxide are produced from 20 to 70 percent by weight of triazine derivatives with hydroxyalkyl amino groups and 80 to 30 percent by weight of triazine derivatives with bis(hydroxyalkyl) imino groups by catalytic reaction of alkylpropylene oxides with triazine derivatives at a melamine derivative/alkylpropylene oxide molar ratio of 1:1.
    Type: Application
    Filed: July 25, 2002
    Publication date: March 13, 2003
    Applicant: Agrolinz Melamin GmbH
    Inventors: Manfred Ratzsch, Martin Burger, Manfred Arnold, Willy Frank
  • Publication number: 20030045667
    Abstract: Polymers made from triazine derivatives for intermediates and molded materials with improved toughness and high flame resistance and strength consisting of
    Type: Application
    Filed: July 25, 2002
    Publication date: March 6, 2003
    Applicant: Agrolinz Melamin GmbH
    Inventors: Manfred Ratzsch, Martin Burger, Manfred Arnold, Willy Frank
  • Patent number: 5677394
    Abstract: A melt-processable block copolyesterimide comprising the repeating units (I), (II) and (III) and, optionally, a repeating unit (IV), wherein (I) is a repeating unit of the formula ##STR1## wherein R is an aliphatic polyether chain and/or a polysiloxane chain; (II) and (III) are repeating units of the formulas ##STR2## wherein Z is hydrogen, alkyl, alkoxy, aryl, halogen and w is zero or one; and (IV) is a repeating unit of the formula ##STR3## wherein Z' is hydrogen, alkyl, alkoxy, aryl or halogen and the phenylene ring is substituted in by Z' in the m- or p-positions. The repeating unit of formula (I) is present in an amount of 5 to 50 mole-%, the repeating unit of formula (II) is present in an amount of 10 to 80 mole-%, the repeating unit of formula (III) is present in an mount of 5 to 50 mole-% and the repeating unit of formula (IV) is present in an amount of 0 to 45 mole-% of the block copolyesterimide.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 14, 1997
    Assignee: Neste OY
    Inventors: Frank Bohme, Doris Pospiech, Manfred Ratzsch, Christer Bergstrom, Mika Harkonen, Heli Alanko, Pentti Passiniemi
  • Patent number: 5665820
    Abstract: Elastomeric polypropylenes modified by grafting and blends thereof with isotactic polypropylenes modified by grafting, and the use thereof as compatibilizers or adhesion promoters for blends and metal composites.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: September 9, 1997
    Assignee: PCD Polymere Gesellschaft m.b.H.
    Inventors: Dirk Leistner, Manfred Ratzsch, Achim Hesse, Norbert Hafner, Markus Gahleitner, Klaus Bernreitner
  • Patent number: 5369209
    Abstract: The invention relates to amorphous polyesterimides which comprises 50 to 100 mole-% of units of formula II ##STR1## and from 0 to 50 mole-% of units of formula ##STR2## in which units R.sub.1 and R.sub.2, independentlyof one another, are H, branched or unbranched alkyl radicals having 1 to 6 carbon atoms, branched or unbranched alkoxy radicals having 1 to 6 carbon atoms, or F, Cl or Br.The polyesterimides according to the invention are suitable for the production of molding compositions, moldings, fibers and films.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: November 29, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst-Tore Land, Michaela Gedan, Manfred Ratzsch, Frank Bohme
  • Patent number: 5091494
    Abstract: The invention relates to new aromatic/aliphatic and/or alicyclic copolyester amides with high molecular weights, without crosslinking. A subsequent solid phase condensation is avoided or is greatly limited in time. The occurrence of thermal decomposition reactions, dark discolorations of the polymers as well as the formation of block structures are avoided.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: February 25, 1992
    Assignee: Akademie der Wissenschaften der DDR
    Inventors: Dirk Leistner, Frank Bohme, Doris Pospiech, Manfred Ratzsch, Christian Vieth, Michael Stephan
  • Patent number: 4975522
    Abstract: The invention relates to linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR1## wherein Ar.sub.1 is ##STR2## Ar.sub.2 is ##STR3## Y is H, F, Cl, CN, phenyl, C.sub.n H.sub.2n+1, or OC.sub.n H.sub.2n+1, q is a cardinal number between 1 and 2, andn is a cardinal number between 1 and 4;provided that when X.sub.1 =OCO, then X.sub.2 =COO, when X.sub.1 =COO, then X.sub.2 =OCO, when X.sub.1 =NHCO then X.sub.2 =COHN, and when X.sub.1 =CONH then X.sub.2 =NHCO;(B) with an unsaturated dihydroxy oligomeric compound of the formula (III) ##STR4## present as an oligomer, where R.sup.1 is a linear, aliphatic, saturated, C.sub.2-12 moiety, or a C.sub.4-10 oxyaliphatic moiety;R.sup.2 is H or CH.sub.3 moiety; andm is a cardinal number between 1 and 4; at a mole ratio of from about 1:5 to about 5:1, at a temperature of from about 140.degree. C. to about 240.degree. C., for a time period from about 0.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: December 4, 1990
    Assignee: Adademie der Wissenschaften der DDR
    Inventors: Manfred Ratzsch, Karin Grasshoff