Patents by Inventor Pierre Lichti

Pierre Lichti 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).

  • Process and apparatus for treating viscous products
    Patent number: 8678641
    Abstract: In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader, especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader, the product in the mixing kneader shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 25, 2014
    Assignee: List Holding AG
    Inventors: Pierre-Alain Fleury, Pierre Lichti
  • PROCESS AND APPARATUS FOR TREATING VISCOUS PRODUCTS
    Publication number: 20120217330
    Abstract: In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader, especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader, the product in the mixing kneader shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: LIST HOLDING AG
    Inventors: Pierre-Alain Fleury, Pierre Lichti
  • Process and apparatus for treating viscous products
    Patent number: 8222355
    Abstract: In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader, especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader, the product in the mixing kneader shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: July 17, 2012
    Assignee: List Holding AG
    Inventors: Pierre-Alain Fleury, Pierre Lichti
  • METHOD AND SYSTEM FOR PRODUCING A SPINNING SOLUTION FOR PRODUCING A POLYMER FIBER
    Publication number: 20100160525
    Abstract: A method for producing a spinning solution for producing a polymer fiber, particularly a p-aramid fiber, the polymer being blended with a solvent, mixed, melted, homogenized, and degassed and then discharged, liquid sulfuric acid being used as the solvent and at least the mixing, homogenization, and degassing taking place in a preferably continuously operated single or double cell reactor (1).
    Type: Application
    Filed: May 14, 2008
    Publication date: June 24, 2010
    Applicant: LIST HOLDING AG
    Inventors: Reinhard Geisler, Pierre Lichti, Thomas Isenschmid
  • PROCESS AND APPARATUS FOR TREATING VISCOUS PRODUCTS
    Publication number: 20100152396
    Abstract: In a process for treating viscous products, especially for performing polymerization processes, especially for homo- or copolymerizing thermoplastics and elastomers, wherein monomer(s) and/or catalysts and/or initiators are added to a backmixed mixing kneader, especially with a length/diameter ratio of 0.5-3.5, heat is supplied to the product which is backmixed with already reacted product and the reacted product is removed from the mixing kneader, the product in the mixing kneader shall be heated up to its boiling temperature, portions of the product shall be evaporated and exothermicity of the product shall be absorbed by evaporative cooling.
    Type: Application
    Filed: March 28, 2008
    Publication date: June 17, 2010
    Applicant: LIST HOLDING AG
    Inventors: Pierre-Alain Fleury, Pierre Lichti