Patents by Inventor Manfred Hølzl

Manfred Hølzl 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).

  • Membranes based on polyvinyl alcohol
    Patent number: 9074032
    Abstract: The invention relates to the use of silane-modified polyvinyl alcohols for producing membranes, characterized in that the silane-modified polyvinyl alcohols can be obtained by a) radically initiated copolymerization of one or more vinyl esters from unbranched or branched carboxylic acids having 1 to 15 C-atoms and one or more ethylenically unsaturated silane compounds selected from the group comprising compounds of the general formulae CR2=CR—B—Si(OR?)3-n(R?)n (1), or CR2=CRC(?O)-D-B—Si(OR?)3-n(R?)n (2), wherein B is an aryl, heteroaryl or (CR2) m residue, wherein one or more non-neighboring CR2 groups can be replaced by heteroatoms as applicable, D is a heteroatom, R is a hydrogen atom, an alkyl or aryl residue or a heteroatom that is substituted as applicable by a hydrogen atom or an alkyl, aryl residue, OR is an alkoxy, alkylcarboxy or arylcarboxy residue, R? is an alkyl or aryl residue and n 0, 1 or 2 and in 0 to 15, and b) subsequent saponification of the silane-modified vinyl ester copolymerizate obtain
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 7, 2015
    Assignee: Wacker Chemie AG
    Inventors: Manfred Hölzl, Martin Bortenschlager, Susanne Hecher, Felicitas Schauer
  • Membranes based on polyvinyl alcohol
    Publication number: 20120031843
    Abstract: The invention relates to the use of silane-modified polyvinyl alcohols for producing membranes, characterized in that the silane-modified polyvinyl alcohols can be obtained by a) radically initiated copolymerization of one or more vinyl esters from unbranched or branched carboxylic acids having 1 to 15 C-atoms and one or more ethylenically unsaturated silane compounds selected from the group comprising compounds of the general formulae CR2?CR—B—Si(OR?)3-n(R?)n (1), or CR2?CRC (?0)-D-B—Si(OR?)3-n(R?)n (2), wherein B is an aryl, heteroaryl or (CR2)m residue, wherein one or more non-neighboring CR2 groups can be replaced by heteroatoms as applicable, D is a heteroatom, R is a hydrogen atom, an alkyl or aryl residue or a heteroatom that is substituted as applicable by a hydrogen atom or an alkyl, aryl residue, OR? is an alkoxy, alkylcarboxy or arylcarboxy residue, R? is an alkyl or aryl residue and n 0, 1 or 2 and in 0 to 15, and b) subsequent saponification of the silane-modified vinyl ester copolymerisate obtai
    Type: Application
    Filed: March 23, 2010
    Publication date: February 9, 2012
    Applicant: Wacker Chemie AG
    Inventors: Manfred Hølzl, Martin Bortenschlager, Susanne Hecher, Felicitas Schauer