Patents by Inventor Wilfried Rahse

Wilfried Rahse 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: 20070197418
    Abstract: Methods comprising contacting a fabric in an automatic washing machine with a microemulsion comprising an oil and an emulsifier system, wherein the emulsifier system comprises a hydrophilic emulsifier and a lipophilic emulsifier; and microemulsions comprising: an oil, an antioxidant, and an emulsifier system; wherein the emulsifier system comprises a hydrophilic emulsifier and a lipophilic emulsifier; and wherein the microemulsion has a droplet size d50 less than 500 nm, which are suitable for use as fabric treatment agents.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 23, 2007
    Applicant: Henkel KGaA
    Inventor: Wilfried Rahse
  • Publication number: 20070128232
    Abstract: A fragrance and perfume oil concentrate in the form of aqueous emulsion is comprised of at least 30% by weight of perfume oil(s), where the content of the two components water and perfume oil(s) exceeds a value of together 96% by weight. The perfume emulsion is not combustible or flammable and can, therefore, be handled without safety concerns during further processing.
    Type: Application
    Filed: May 18, 2006
    Publication date: June 7, 2007
    Inventor: Wilfried Rahse
  • Publication number: 20070111920
    Abstract: A method for production of solid granulates with improved storage stability and abrasion resistance, based on the addition of hygroscopic polyols. The solid granulates have improved storage stability and abrasion resistance and are, in particular, enzyme granulates, most particularly, those of admixture components for washing and cleaning agents and washing and cleaning agents comprising said granulates.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 17, 2007
    Inventors: Dieter Baur, Lars Kucka, Wilfried Rahse
  • Patent number: 7186677
    Abstract: Provided is a method for producing surfactant granulates, comprising (a) providing a mixture of anionic surfactant acids and builder acids having a weight ratio of 1:100 to 1:20 of builder acid to surfactant acid; and (b) contacting the mixture with at least one solid neutralizing agent. The builder acid is selected from citric acid, tartaric acid, succinic acid, malonic acid, adipic acid, maleic acid, fumaric acid, oxalic acid, gluconic acid, nitrilotriacetic acid, aspartic acid, ethylenediaminetetraacetic acid, aminotrimethylenephosphonic acid, hydroxyethanediphosphonic acid, polyaspartic acids, polyacrylic acids, polymethacrylic acids, or copolymers thereof and has a particle size below 200 ?m.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: March 6, 2007
    Assignee: Henkel Kommanditgesellschaft Auf Aktien (Henkel KGAA)
    Inventors: Wilfried Rähse, Bernhard Orlich, Henriette Weber
  • Publication number: 20070010407
    Abstract: The invention relates to scent composites comprising at least one perfume oil and at least one additive having a melting or flow point of 20° C.-100° C. Said composites are highly viscous or solid at temperatures of up to 18° C. and are converted into a liquid melt state, substantially without decomposition, at temperatures of not more than 110° C. The invention also relates to a method for the solidification of perfume oils and to a method for long-lasting perfuming of the surfaces of substrates. The invention further relates to the use of said composites and detergents, cleaning and textile post-treatment agents containing said scent composites.
    Type: Application
    Filed: June 9, 2006
    Publication date: January 11, 2007
    Inventors: Wilfried Rahse, Peter Victor
  • Publication number: 20050020469
    Abstract: The present invention describes easily soluble surfactant granulates containing builders, having a variable bulk weight and an excellent solubility profile, containing the neutralized from of an anionic surfactant acid and sodium carbonate and sodium hydrogencarbonate, produced by neutralization of mixtures of anionic surfactant acids and builder acids with solid neutralizing agents. The present invention provides a method for producing surfactant granulates, comprising providing a mixture of anionic surfactant acids and builder acids having a weight ratio of 1:500 to 50:1 of builder acid to surfactant acid and contacting the mixture with solid neutralizing agents.
    Type: Application
    Filed: June 21, 2004
    Publication date: January 27, 2005
    Inventors: Wilfried Rahse, Bernhard Orlich, Henriette Weber
  • Publication number: 20040259755
    Abstract: The present invention describes surfactant granulates and methods for producing surfactant granulates. In particular, it relates to methods which allow the production of readily soluble surfactant granulates and detergent and cleaner compositions in a cost-optimized manner. In one embodiment, the invention provides compositions comprising the neutralized form of an anionic surfactant acid, sodium carbonate, and sodium hydrogencarbonate, wherein the weight ratio of sodium carbonate to sodium hydrogencarbonate is from 5:1 to 2:1.
    Type: Application
    Filed: June 7, 2004
    Publication date: December 23, 2004
    Inventors: Bernhard Orlich, Hans-Friedrich Kruse, Wilfried Rahse, Gerhard Blasey
  • Patent number: 5846798
    Abstract: Enzyme granules having an average particle size of from about 1 to about 2.2 mm are disclosed. The enzyme granules comprise an extruded particulate first enzyme component containing at least one enzyme and organic and/or inorganic carrier material and a second particulate enzyme component containing at least one particulate enzyme different from the one enzyme in the said first enzyme component, wherein the second particulate enzyme component is agglomerated onto the particulate first enzyme component, and wherein the average particle size of the particulate first enzyme component is in the range of from about 1.1 to about 3 times the average particle size of the second particulate enzyme component. Furthermore, a process for the preparation of the enzyme granules is disclosed.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: December 8, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Kathleen Paatz, Wilfried Rahse, Werner Pichler, Horst Upadek, Norbert Kuhne
  • Patent number: 4415124
    Abstract: A method for the production of micropowders from cellulose ethers or cellulose comprising(a) subjecting a cellulose ether or a cellulose having a fine-fiber, cottony or woolly structure to a consolidation or embrittlement sufficient whereby in one mill pass through a jet mill under standard conditions 98% by weight of the consolidated or embrittled material charged is recovered as a powder of less than 100.mu., and(b) subjecting the consolidated or embrittled material to a grinding step producing a size reduction sufficient that a grain size distribution with at least 90% by weight of less than 125.mu. is attained.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: November 15, 1983
    Assignee: Henkel Kommanditgesellschaft Auf Aktien
    Inventors: Franz-Josef Carduck, Wilfried Rahse, Willi Wust, Hans Pabel
  • Patent number: 4341892
    Abstract: This invention is directed to the preparation of alkali cellulose. More particularly, this invention is directed to a process for the preparation of alkali cellulose having a low water content, wherein finely divided cellulose suspended in a typical inert organic solvent is presteeped and the cellulose suspension is contacted with an alkali metal hydroxide/alcohol mixture and at least one aqueous alkalization solution of different concentration.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: July 27, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Norbert Kuhne, Hasso Leischner, Wilfried Rahse, Willi Wust
  • Patent number: 4339574
    Abstract: This invention is directed to a method for the continuous production of alkyl cellulose by reacting alkali cellulose with alkylating agents in the presence of inert liquids, wherein:(a) powdered cellulose is reacted with aqueous-alcoholic alkali metal hydroxide solution at temperatures of from about 20.degree. to 80.degree. C. to form alkali cellulose;(b) oxygen is completely removed from the alkali cellulose reaction mixture of step (a) and the water content is reduced to about 2.5 to 6.0 moles per anhydroglucose unit; and(c) the reaction mixture from step (b) is reacted with at least a stoichiometric amount, but not more than with a molar excess of up to about 50%, based on the alkali metal hydroxide, of an alkylating agent in an inert liquid boiling at a temperature of from about 80.degree. to 160.degree. C., the reaction being carried out continuously in stirred tanks-in-series with 2 to 10 units.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Willi Wust, Hasso Leischner, Wilfried Rahse, Franz-Josef Carduck, Norbert Kuhne
  • Patent number: 4339573
    Abstract: This invention relates to an improved process for preparing cellulose derivatives by alkalizing cellulose to form alkali cellulose, alkylating the alkali cellulose to form alkylated alkali cellulose, and recovering the alkylated alkali cellulose. According to the process of the invention, finely-divided, preferably powdered, cellulose is reacted with an aqueous-alcoholic alkali metal hydroxide solution at a temperature of from about 20.degree. to 120.degree. C., to form alkali cellulose, oxygen is removed, and the water content is reduced to from about 2.5 to 6.0 moles per anhydroglucose unit, prior to alkylization.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Willi Wust, Hasso Leischner, Wilfried Rahse, Franz-Josef Carduck, Norbert Kuhne