Patents Assigned to Polymerlatex GmbH
  • Patent number: 8222362
    Abstract: The present invention refers to a polymer latex made by free-radical polymerization comprising polymer particles containing structural units derived from at least one conjugated diene monomer and at least one aromatic vinyl monomer, whereby no vinyl pyridine is used in the polymerization and the polymer latex is polymerized in the presence of at least one chain transfer agent having the general formula RSH, wherein R is a linear alkyl group having 3 to 20 carbon atoms and the dried latex polymer has a Mooney viscosity measured according to DIN 53 523 of 85 to 155, as well as to articles made there from.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: July 17, 2012
    Assignee: Polymerlatex GmbH
    Inventors: Christoph Scholten, Katja Siepen
  • Publication number: 20080039541
    Abstract: The present invention refers to a polymer latex made by free-radical polymerization comprising polymer particles containing structural units derived from at least one conjugated diene monomer and at least one aromatic vinyl monomer, whereby no vinyl pyridine is used in the polymerization and the polymer latex is polymerized in the presence of at least one chain transfer agent having the general formula RSH, wherein R is a linear alkyl group having 3 to 20 carbon atoms and the dried latex polymer has a Mooney viscosity measured according to DIN 53 523 of 85 to 155, as well as to articles made there from.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 14, 2008
    Applicant: POLYMERLATEX GMBH
    Inventors: Christoph Scholten, Katja Siepen
  • Patent number: 6841595
    Abstract: Process for the preparation of protective colloid-stabilized, emulsifier-free, aqueous dispersions based on at least two monomers selected from vinylaromatics, 1,3-dienes and/or (meth)acrylates, in the presence of assistants and, if required, further comonomers in an amount of from 0.1% by weight to 20% by weight, based on the total amount of monomers, wherein at least 10% by weight of the total amount of water are added to the reaction vessel only after the monomers have been added to the reaction vessel and the conversion is at least 40%, based on 100% of the monomers.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: January 11, 2005
    Assignee: PolymerLatex GmbH & Co. KG
    Inventors: Davide Brizzolara, Herbert Vorholt
  • Patent number: 6780918
    Abstract: Process for the preparation of protective colloid-stabilized aqueous dispersions.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: August 24, 2004
    Assignee: PolymerLatex GmbH & Co.KG.
    Inventor: Davide Brizzolara
  • Patent number: 6693146
    Abstract: Self crosslinking aqueous polymer dispersions containing hard and soft copolymers containing polymerized units of a conjugated diene, a vinyl aromatic compound, an organic carboxylic acid and/or anhydride, and at least one crosslinker may be included in consolidated nonwoven constructions. The consolidated nonwoven construction is useful as a base material such as a bituminized roofing mat.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: February 17, 2004
    Assignee: Polymerlatex GmbH & Co. KG.
    Inventors: Gunther Mueller, Helmut Daum, Willibald Scheda
  • Publication number: 20040010079
    Abstract: A polymer latex prepared in the presence of a halogen-free and sulfur-free chain transfer agent can be used for paper coating applications, in particular in the area of odor-sensitive applications, such as food packaging. The polymer latex contains in polymerized form: a) from 10% to 80% by weight of one or more monovinylaromatic monomers; b) from 0% to 70% by weight of one or more conjugated diene monomers; c) from 0% to 70% by weight of one or more acrylate monomers; and d) a remainder of one or more other copolymerizable comonomers, with the condition that a sum of the percentages by weight of components b) and c) is greater than zero.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 15, 2004
    Applicant: POLYMERLATEX GmbH & Co. KG
    Inventor: Uwe Schulze
  • Publication number: 20030100674
    Abstract: Self-crosslinking aqueous polymer dispersions which are suitable for consolidating nonwovens, which may be subsequently bituminized.
    Type: Application
    Filed: January 2, 2003
    Publication date: May 29, 2003
    Applicant: POLYMERLATEX GmbH & Co. KG
    Inventors: Gunther Mueller, Helmut Daum, Willibald Scheda
  • Publication number: 20030022976
    Abstract: Process for the preparation of protective colloid-stabilized, emulsifier-free, aqueous dispersions based on at least two monomers selected from vinylaromatics, 1,3-dienes and/or (meth)acrylates, in the presence of assistants and, if required, further comonomers in an amount of from 0.1% by weight to 20% by weight, based on the total amount of monomers, wherein at least 10% by weight of the total amount of water are added to the reaction vessel only after the monomers have been added to the reaction vessel and the conversion is at least 40%, based on 100% of the monomers.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 30, 2003
    Applicant: POLYMERLATEX GmbH & Co. KG
    Inventors: Davide Brizzolara, Herbert Vorholt
  • Publication number: 20010007891
    Abstract: Self-crosslinking aqueous polymer dispersions which are suitable for consolidating nonwovens, which may be subsequently bituminized.
    Type: Application
    Filed: January 4, 2001
    Publication date: July 12, 2001
    Applicant: Polymerlatex GmbH & Co. KG.
    Inventors: Gunther Mueller, Helmut Daum, Willibald Scheda