Patents by Inventor Markus Mechtel

Markus Mechtel 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: 20020099161
    Abstract: The present invention relates to a process for producing sol-gel condensates by
    Type: Application
    Filed: January 17, 2002
    Publication date: July 25, 2002
    Inventors: Michael Mager, Markus Mechtel, Harald Kraus, Nusret Yuva
  • Patent number: 6413446
    Abstract: The present invention relates to antifouling agents containing (A) at least one multifunctional carbosilane and/or carbosiloxane of formula (I) Q[(CH2)mSiR1nX(3−n)]p  (I)  and/or a partial condensation product thereof, wherein each R1 is independently a C1-C18 alkyl and/or C6-C20 aryl, X is OH, C1-C4 alkoxy, C6-C20 aryloxy, or C1-C6 acyloxy, n is 0 to 2, m is 2 to 6, p is an integer ≧2, and Q is either (i) a linear or cyclic silane or siloxane or (ii) an unsubstituted hydrocarbon or a hydrocarbon in which at least one carbon atom is substituted with at least one member of the group consisting of O, N, S, and P, and optionally (B) one or more alkoxysilanes, (C) an organic solvent and/or water, (D) a catalyst, (E) inorganic nanoparticles, and/or (F) other additives.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: July 2, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Markus Mechtel, Michael Mager, Karl-Heinz Käsler
  • Publication number: 20020052442
    Abstract: Process for preparing non-aqueous dispersions, wherein a liquid prepolymer is emulsified in a non-aqueous liquid, the droplet size of the emulsion is adjusted to 0.1 to 30 &mgr;m and the droplet size distribution U90 is adjusted to less than 2 by means of a jet disperser, and the droplets are cured by a chemical reaction.
    Type: Application
    Filed: April 30, 1999
    Publication date: May 2, 2002
    Inventors: ECKHARD WENDT, ROBERT BLOODWORTH, MARKUS MECHTEL, BERND KLINKSIEK, OLAF HALLE
  • Patent number: 6365066
    Abstract: This invention relates to compositions comprising (a) film formers and (b) microencapsulated biocides that are free of heavy metals and to methods for making such compositions. This invention further relates to antifouling compositions and antifouling coatings.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: April 2, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Podszun, Markus Mechtel, Karl-Heinz Kaesler
  • Patent number: 6291549
    Abstract: Compositions containing (a) at least one organosiloxane and (b) at least one heavy-metal-free biocide. Antifouling compositions, antifouling coatings, and processes for making the same.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: September 18, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Markus Mechtel, Wolfgang Podszun, Karl-Heinz Kaesler
  • Patent number: 6288198
    Abstract: The present invention relates to hybrid coating compositions containing A) 5 to 80 wt %, based on the weight of A) and B), of an aliphatic polyisocyanate-aminosilane adduct that is the reaction product of A1) a polyisocyanate component having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates with A2) at least 0.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: September 11, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Markus Mechtel, Stefan Groth, Lutz Schmalstieg
  • Patent number: 6284834
    Abstract: The present invention relates to novel aqueous preparations for the treatment of mineral building materials containing (I) an aqueous emulsion of at least one polyfunctional carbosilane and/or carbosiloxane (A) and/or the (partial) condensation product thereof, (II) an emulsion of at least one organo(poly)siloxane (B), (III) at least one organic polymer (C) dispersible or emulsified in water, (IV) inorganic nanoparticles (D) dispersed or dispersible in water, and (V) optionally other additives (E).
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: September 4, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stephan Kirchmeyer, Markus Mechtel, Karl-Heinz Käsler
  • Patent number: 6281322
    Abstract: The present invention relates to coating compositions containing 40 to 100% by weight, based on resin solids, of an alkoxysilyl-functional polyisocyanate polyurea which is reaction product of A) a polyisocyanate component having an average functionality of 2.5 to 5.5, an NCO content of 11.0 to 20.0% by weight and a monomeric diisocyanate content of less than 10% by weight, and containing at least 50% by weight of a polyisocyanate prepared from 4,4′-diisocyanatodicyclohexyl-methane with B) at least 0.7 equivalents, based on the equivalents of isocyanate groups, of an aminosilane corresponding to formula (I) (RO)nY(3−n)Si—CH2CH2CH2—NHZ  (I),  wherein R represents methyl or ethyl, Y represents methyl, Z represents H, a C1-C12 alkyl or CH2CH2CH2—Si(OR)nY3−n, and n is 1, 2 or 3, and C) optionally other isocyanate-reactive compounds.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: August 28, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stefan Groth, Reinhard Halpaap, Markus Mechtel, Lutz Schmalstieg, Philip E. Yeske
  • Patent number: 6224946
    Abstract: This invention relates to novel suspensions containing (a) 30 to 95 wt. % of water, (b) 70 to 5 wt. % of at least one silane or siloxane having at least two groups corresponding to formula (I) —(CH2)mSiRnX3-n  (I)  wherein R denotes C1-C18 alkyl and/or C6-C20 aryl, X denotes OH, C1-C4 alkoxy, C6-C20 aryloxy, C1-C6 acyloxy and/or hydrogen, m is 1 to 6, and n is 0 to 2, (c) 0.1 to 30 wt. % of at least one emulsifier, and (d) 0 to 20 wt. % of one or more additives and/or auxiliary substances, with the proviso that the sum of components (a) to (d) totals 100 wt. %. The present invention further relates to the preparation and use of such suspensions.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: May 1, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stephan Kirchmeyer, Markus Mechtel, Michael Mager
  • Patent number: 6136939
    Abstract: Oligomers soluble in organic solvents and obtainable by condensing identical or different monomers of the formula ##STR1## in which R.sub.1 means C.sub.1 -C.sub.6 alkyl or C.sub.6 -C.sub.14 aryl,R.sub.2 means hydrogen, alkyl or aryl, if b is 1, or alkyl or aryl, if b is 2 or 3,R.sub.3 means alkyl or aryl,m means 3 to 6,q means 2 to 10 and,b means 1, 2 or 3,are suitable for coating plastics, mineral and metallic substrates and glass.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 24, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Mager, Markus Mechtel
  • Patent number: 6005131
    Abstract: The present invention relates to novel multi-functional, cyclic organosiloxanes, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: December 21, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jorg-Dietrich Jentsch, Michael Mager, Markus Mechtel
  • Patent number: 5948852
    Abstract: Process for preparing non-aqueous dispersions, wherein a liquid prepolymer is emulsified in a non-aqueous liquid, the droplet size of the emulsion is adjusted to 0.1 to 30 .mu.m and the droplet size distribution U.sub.90 is adjusted to less than 2 by means of a jet disperser, and the droplets are cured by a chemical reaction.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: September 7, 1999
    Assignee: GE Bayer Silicones GmbH & Co. KG
    Inventors: Eckhard Wendt, Robert Bloodworth, Markus Mechtel, Bernd Klinksiek, Olaf Halle
  • Patent number: 5880305
    Abstract: The present invention relates to a process for the preparation of SiOH-functional carbosilane dendrimers.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: March 9, 1999
    Assignee: Bayer AG
    Inventors: Harald Kraus, Markus Mechtel