Patents Assigned to Nouvel Laboratory, Ltd.
  • Patent number: 5248332
    Abstract: There is disclosed a method for producing a pastel containing a pearl pigment therein by extrusion molding. The method comprises preparing a molding material composed of a mixture comprising a pearl pigment in an amount of 30-93% by weight, a coloring pigment in an amount of 0-16% by weight, a first extender selected from bentonite and montmorillonite in an amount of 7-47% by weight, and a second extender other than the first in an amount of 0-13% by weight, and water in an amount sufficient to render the molding material plastic and moldable, and extrusion-molding and drying the material.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: September 28, 1993
    Assignee: Nouvel Laboratory, Ltd.
    Inventor: Manabu Kamegawa
  • Patent number: 5185038
    Abstract: There is disclosed a method for producing a pastel containing a fluorescent pigment therein by extrusion molding. The method comprises preparing a molding material composed of a mixture comprising a fluorescent pigment in an amount of 20-60% by weight, montmorillonite group minerals or clay mainly composed of montmorillonite group minerals as a first extender in an amount of 5-17% by weight, a second extender other than the first in an amount of 35-70% by weight, and a wetting agent in an amount of 0-6% by weight, based on the mixture, and water in an amount sufficient to render the molding material plastic and moldable, and extrusion-molding and drying the material.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: February 9, 1993
    Assignee: Nouvel Laboratory, Ltd.
    Inventor: Manabu Kamegawa