Patents by Inventor Marcel LEX

Marcel LEX 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: 20230220211
    Abstract: The present invention refers to Pickering emulsion comprising (i) water; (ii) 10 to 50 wt.-% oil, based on the total weight of the Pickering emulsion and (iii) 1 to 10 wt.-% of Pickering pigments, based on the total weight of the Pickering emulsion, wherein the Pickering pigments are calcium carbonate particles selected from surface-reacted calcium carbonate (SRCC) or mixtures of ground calcium carbonate (GCC) and surface-reacted calcium carbonate (SRCC) and wherein the calcium carbonate particles have a volume median particle size d50 value from 0.2 µm to 10 µm. Furthermore, the present invention refers to a composition comprising said Pickering emulsions and a method of preparing such Pickering emulsions. The present invention also refers to the use of calcium carbonate particles as Pickering pigments for stabilizing Pickering emulsions comprising water and 10 to 50 wt.
    Type: Application
    Filed: July 22, 2021
    Publication date: July 13, 2023
    Applicant: Omya International AG
    Inventors: Marcel LEX, Florentine HILTY-VANCURA, Laura DE MIGUEL, Sylvain MASSE
  • Publication number: 20230066368
    Abstract: The present invention refers to the use of a calcium carbonate-based composition as an anticaking agent, wherein the calcium carbonate-based composition comprises a first component being a natural ground calcium carbonate or a precipitated calcium carbonate, and a second component being a surface-reacted calcium carbonate, wherein the surface-reacted calcium carbonate is a reaction product of natural ground calcium carbonate or precipitated calcium carbonate with carbon dioxide and at least one H3O+ ion donor, wherein the carbon dioxide is formed in situ by the at least one H3O+ ion donor treatment and/or is supplied from an external source. Furthermore, the present invention refers to a particulate composition comprising such an anticaking agent, and to a method for producing such a particulate composition.
    Type: Application
    Filed: February 23, 2021
    Publication date: March 2, 2023
    Applicant: OMYA INTERNATIONAL AG
    Inventors: Lalit SHARMA, Marcel LEX, Renata NEGRINI, Tanja BUDDE, Stefan LANDER