Patents by Inventor Jean Victor Mallard de La Varende

Jean Victor Mallard de La Varende 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).

  • Method for increasing the advantages of strength aids in the production of paper and paperboard
    Patent number: 9388533
    Abstract: The invention relates to a method for manufacturing paper, paperboard or cardboard comprising the steps of (a) pulping an aqueous cellulosic material containing a starch; (b) preventing at least a portion of the starch from being microbially degraded by treating the aqueous cellulosic material containing the starch with one or more biocides; and (h) adding a dry and/or wet strength polymer to the cellulosic material.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: July 12, 2016
    Assignee: Solenis Technologies, L.P.
    Inventors: Ludwig Krapsch, Christopher John McGregor, Jean Victor Mallard de la Varende
  • METHOD FOR INCREASING THE ADVANTAGES OF STRENGTH AIDS IN THE PRODUCTION OF PAPER AND PAPERBOARD
    Publication number: 20140284011
    Abstract: The invention relates to a method for manufacturing paper, paperboard or cardboard comprising the steps of (a) pulping an aqueous cellulosic material containing a starch; (b) preventing at least a portion of the starch from being microbially degraded by treating the aqueous cellulosic material containing the starch with one or more biocides; and (h) adding a dry and/or wet strength polymer to the cellulosic material.
    Type: Application
    Filed: August 24, 2012
    Publication date: September 25, 2014
    Applicant: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC
    Inventors: Ludwig Krapsch, Christopher John McGregor, Jean Victor Mallard de La Varende
  • METHOD FOR INCREASING THE ADVANTAGES OF STARCH IN PULPED CELLULOSIC MATERIAL IN THE PRODUCTION OF PAPER AND PAPERBOARD
    Publication number: 20130186584
    Abstract: The invention relates to a method for increasing the benefit from starch in pulped, preferably repulped cellulosic material at paper or paperboard manufacturing comprising the steps of (a) pulping a cellulosic material containing a starch; (b) treating the cellulosic material containing the starch with one or more biocides, preferably in the thick stock area; and (h) adding an ionic polymer and preferably, an auxiliary ionic polymer to the cellulosic material; wherein the ionic polymer and the optionally added auxiliary ionic polymer preferably have a different average molecular weight and preferably a different ionicity, wherein the ionicity is the molar content of ionic monomer units relative to the total amount of monomer units.
    Type: Application
    Filed: August 25, 2011
    Publication date: July 25, 2013
    Applicant: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC
    Inventors: Ludwig Krapsch, Christopher John McGregor, Jean Victor Mallard de La Varende