Patents by Inventor Magali Knipper

Magali Knipper 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).

  • Use of cellulose microfibrils in dry form in food formulations
    Patent number: 6485767
    Abstract: The invention concerns the use, in dry form, of a combination of substantially amorphous microfibrils with a crystallinity index not more than 50%, with at least a polyhydroxylated compound, as additive for food formulations, the content of this combination being more than 0% and less than 20% by weight relative to the total weight of the food formulation.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: November 26, 2002
    Assignee: Rhodia Chimie
    Inventors: Robert Cantiani, Magali Knipper, Sophie Vaslin
  • Chemically modified succinoglycans and industrial compositions comprised thereof
    Patent number: 5831042
    Abstract: Chemically modified succinoglycan polysaccharides, e.g., acidic or enzymatic hydrolysates, have a reduced content of pyruvic acid and succinic acid structural units relative to the unmodified such succinoglycans, and are well suited, whether in fibrous, powdery or gel state, for use, e.g., as thickening stabilizing or suspending agents, in foodstuff, cosmetic and a variety of other compositions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 3, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Magali Knipper, Michele Raffart, Alain Senechal
  • Chemically modified succinoglycans and industrial compositions comprised thereof
    Patent number: 5514792
    Abstract: Chemically modified succinoglycan polysaccharides, e.g., acidic or enzymatic hydrolysates, have a reduced content of pyruvic acid and succinic acid structural units relative to the unmodified such succinoglycans, and are well suited, whether in fibrous, powdery or gel state, for use, e.g., as thickening stabilizing or suspending agents, in foodstuff, cosmetic and a variety of other compositions.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: May 7, 1996
    Assignee: Rhone-Poulenc Chimie
    Inventors: Magali Knipper, Michele Raffart, Alain Senechal
  • Cationic compound/xanthan gum aqueous compositions
    Patent number: 5446014
    Abstract: Precipitate-free aqueous compositions, well adapted as agricultural chemicals, e.g., crop protectants, are comprised of at least one water soluble cationic organic compound, e.g., a pesticidally active quaternary ammonium compound, and a thickening amount of a xanthan gum having an intrinsic viscosity of less than 3,500 cm.sup.3 /g.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: August 29, 1995
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Luc Schuppiser, Magali Knipper
  • Mixed polysaccharide precipitating agents and insulating articles shaped therefrom
    Patent number: 5350524
    Abstract: Mixed polysaccharide compositions, well adopted for flocculating/precipitating solid particulates from liquid dispersions thereof and for the shaping of insulating articles therefrom, comprise (i) at least one succinoglycan polysaccharide, the basic recurring structural unit of which comprising glucose, galactose and succinyl moieties, and (ii) at least one natural polysaccharide or derivative thereof.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: September 27, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Marie-Madeleine Besnard, Claire David, Magali Knipper
  • Insulating shaped articles comprising inorganic fibrous matrices and xanthan gum/cationic starch binders
    Patent number: 5290350
    Abstract: Physically/mechanically improved insulating shaped articles such as panels or plates, adapted to withstand very elevated temperatures, comprise an inorganic fiber matrix, e.g., a matrix of ceramic fibers, such inorganic fiber matrix containing at least one inorganic filler material, e.g., a mineral wool and/or kaolin, and a consolidating of a binder therefor which comprises admixture of a xanthan gum and a cationic starch.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: March 1, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Marie-Madeleine Besnard, Fabrice Brenner, Magali Knipper
  • Mixed polysaccharide precipitating agents and insulating articles shaped therefrom
    Patent number: 5221790
    Abstract: Mixed polysaccharide compositions, well adopted for flocculating/precipitating solid particulates from liquid dispersions thereof and for the shaping of insulating articles therefrom, comprise (i) at least one polysaccharide prepared by microbial fermentation, the basic recurring structural unit of which comprising both glucose and rhamnose moieties, and (ii) at least one cationic natural polysaccharide or derivative thereof.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: June 22, 1993
    Assignee: Rhone-Poulenc Chimie
    Inventors: Marie-Madeleine Besnard, Claire David, Magali Knipper
  • Stable zeolite/succinoglycan suspensions
    Patent number: 5104566
    Abstract: Stable suspensions of zeolite particulates, in water, well adapted for detergency applications, include an effective stabilizing amount of a succinoglycan and, advantageously, a dispersing agent, e.g., a silicone resin or a siliconate and/or siliconate derivative.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: April 14, 1992
    Assignee: Rhone-Poulenc Chimie
    Inventors: Gilles Guerin, Magali Knipper
  • Catalyst supports and process for their preparation
    Patent number: 4891350
    Abstract: Monolithic catalyst substrates are more adherently coated with at least one oxide layer, by including in the coating composition a gum or biogum, preferably xanthan gum.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: January 2, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Thierry Chopin, Francois Garreau, Magali Knipper, Patrice Nortier, Jean-Luc Schuppiser