Patents by Inventor Michael R. Buchmeiser

Michael R. Buchmeiser 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: 20210206788
    Abstract: A compound of formula (I) wherein: M is selected from Mo or W; X is selected from O or NR5; R1 and R2 are independently selected from H, C1-6 alkyl, and aryl; C1-6 alkyl and aryl optionally being substituted with one or more of C1-6 alkyl, C1-6 alkoxy, and O—C6H5; R3 is selected from a nitrogen-containing aromatic heterocycle being bound to M via said nitrogen; and from halogen; R4 is an aryl oxy group being bound to M via said oxygen of said aryl oxy group; wherein said aryl group Ar of said aryl oxy group is bound to a group Cat such to form a cationic ligand Cat+-Z—ArO—, wherein Z is either a covalent bond or a linker; R5 is alkyl or aryl, optionally substituted.
    Type: Application
    Filed: May 31, 2019
    Publication date: July 8, 2021
    Inventors: Levente Ondi, Roman Schowner, Michael R. Buchmeiser, Iris Elser, Florian Toth, Emmanuel Robe, Benedek Vakulya
  • Patent number: 10995429
    Abstract: The invention relates to a process for producing carbon fibers from cellulosic fibers, characterized in that cellulosic fibers, which contain a sulfonic acid salt of formula (I), wherein R1 represents a hydrocarbon group and K+ represents a cation, are converted into carbon fibers.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: May 4, 2021
    Assignee: DEUTSCHE INSTITUTE FURTEXTIL-UND FASERFORSCHUNG DENKENDORF
    Inventors: Falko Abels, Martin Merger, Tomasz Cwik, Klemens Massonne, Johanna Sporl, Frank Hermanutz, Michael R. Buchmeiser
  • Publication number: 20200407508
    Abstract: A method for producing films, fibers, and moldings of a polybenzazole polymer (P) by reacting at temperatures of 0 to 120° C. a mixture including (a) aromatic dicarboxylic compound(s) (I): wherein Ar1 is optionally substituted phenylene, naphthalenediyl, anthracenediyl, biphenyldiyl, diphenylmethanediyl, diphenyl ether diyl, diphenyl thio ether diyl, diphenyl sulfone diyl, benzophenonediyl, pyridinediyl, pyrimidinediyl, furandiyl, or thiophenediyl, substituents being —F, —Cl, —Br, —OR1, and —C1-C10-alkyl, R1 being —H or —C1-C10-alkyl; X1 and X2 are independently-OR2, —F, —Cl, or —Br, R2 being —H, —C1-C10-alkyl, —C1-C10-alkenyl or a repeating unit (a): wherein m is a natural number from 1 to 50, and R3 is —H, C1-C10-alkyl, or C1-C10-alkenyl; (b) aromatic diamino compound(s) of formula (IIa), (IIb), (IIc) and/or (IId); (c) at least one ionic liquid (IL), to obtain a product, processing the product at temperatures 0 to 100° C. and heating of the articles obtained at temperatures of 250 to 500° C.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 31, 2020
    Applicant: BASF SE
    Inventors: Marcel BRILL, Ines DEBEAUVAIS DE VASCONCELOS, Maik NOWAK, Olivier FLEISCHEL, Martin MERGER, Achim STAMMER, Joachim RUCH, Frank HERMANUTZ, Ronald BEYER, Michael R. BUCHMEISER
  • Publication number: 20190062954
    Abstract: The invention relates to a process for producing carbon fibers from cellulosic fibers, characterized in that cellulosic fibers, which contain a sulfonic acid salt of formula (I), wherein R1 represents a hydrocarbon group and K+ represents a cation, are converted into carbon fibers.
    Type: Application
    Filed: February 1, 2017
    Publication date: February 28, 2019
    Inventors: Falko Abels, Martin Merger, Tomasz Cwik, Klemens Massonne, Johana Sporl, Frank Hermanutz, Michael R. Buchmeiser
  • Patent number: 10072036
    Abstract: The invention relates to an N-heterocyclic carbene complex of general formulas I to IV (I) (II) (III) (IV), according to which A1 stands for NR2 or PR2, A2 stands for CR2 R2?, NR2, PR2, 0 or S, A3 stands for N or P, and C stands for a carbene carbon atom, ring B is an unsubstituted or a mono or poly-substituted 5 to 7-membered ring, substituents R2 and R2? stand, inter alia, for a linear or branched C1-Cw-alkyl group and, if N and N each stand for NR2 or PR2, are the same or different, M in formulas I, II, III or IV stands for Cr, Mo or W, X 1 or X2 in formulas I to IV are the same or different and represent, inter alia, C1-C1s carboxylates and C1-C1s-alkoxides, Y is inter alia oxygen or sulphur, Z is inter alia a linear or branched C1-Cw-alkylenoxy group, and R 1 and R1? in formulas I to IV are, inter alia, an aliphatic or aromatic group.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: September 11, 2018
    Assignee: UNIVERSITÄT STUTTGART
    Inventors: Michael R. Buchmeiser, Suman Sen, Roman Schowner
  • Publication number: 20170081787
    Abstract: A method of producing carbon fibers from cellulose fibers comprises bringing cellulose fibers having a water content of more than 20 parts by weight of water per 100 parts by weight of cellulose fiber into contact with a solution of additives and thereafter converting the additized cellulose fibers comprising not less than 1 part by weight of additives per 100 parts by weight of cellulose into carbon fibers.
    Type: Application
    Filed: May 12, 2015
    Publication date: March 23, 2017
    Applicant: BASF SE
    Inventors: Sunghee SON, Klemens MASSONNE, Frank HERMANUTZ, Johanna SPOERL, Michael R. BUCHMEISER, Ronald BEYER
  • Publication number: 20170050994
    Abstract: The invention relates to an N-heterocyclic carbene complex of general formulas I to IV (I) (II) (III) (IV), according to which A1 stands for NR2 or PR2, A2 stands for CR2 R2?, NR2, PR2, 0 or S, A3 stands for N or P, and C stands for a carbene carbon atom, ring B is an unsubstituted or a mono or poly-substituted 5 to 7-membered ring, substituents R2 and R2? stand, inter alia, for a linear or branched C1-Cw-alkyl group and, if N and N each stand for NR2 or PR2, are the same or different, M in formulas I, II, III or IV stands for Cr, Mo or W, X 1 or X2 in formulas I to IV are the same or different and represent, inter alia, C1-C1s carboxylates and C1-C1s-alkoxides, Y is inter alia oxygen or sulphur, Z is inter alia a linear or branched C1-Cw-alkylenoxy group, and R 1 and R1? in formulas I to IV are, inter alia, an aliphatic or aromatic group.
    Type: Application
    Filed: April 24, 2015
    Publication date: February 23, 2017
    Applicant: UNIVERSITÄT STUTTGART
    Inventors: Michael R. Buchmeiser, Suman Sen, Roman Schowner
  • Patent number: 8288449
    Abstract: Latent photoactivatable precatalysts are provided for metathesis polymerization and has the general formula (Ru(NHC)n(X1)m(L)0p+((X2)?)p. Wherein NHC is an N-heterocyclic carbene, n=1 or 2; X1 is a C1-C18 mono or polyhalogenized carbolic acid or trifluoromethane sulfate; X2 is a C1-C18 mono or polyhalogenized carbolic acid, trifluoromethane sulfate, tetrafluoroborate, hexafluorophosphate, or hexafluoroantimonate; m=0, 1, or 2 and L=a C4-C18 carbolic acid nitrile or a C4-C18 carbolic acid di or trinitrile; o=6?n?m or 5?n?m and p=2?m.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 16, 2012
    Assignee: Deutsche Institute fuer Textil- und Faserforschung Denkendorf
    Inventors: Michael R. Buchmeiser, Dongren Wang