Abstract: A composite of a substrate having an application of superabsorbent polymer. The composite is made by applying, directly onto the substrate, an application of a polymer that will, upon being subjected to radiation, convert to a superabsorbent polymer. The substrate with applied polymer is subjected to radiation, such as being heated at a sufficient temperature for a sufficient time, to obtain the composite of substrate with superabsorbent polymer adhered to it.
Type:
Grant
Filed:
March 30, 1999
Date of Patent:
May 20, 2003
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Bernfried Messner, Whei-Neen Hsu, Robert Agne
Abstract: A composition for dyeing material of synthetic aromatic polyamide fibers, said composition containing a mixture of (a) a cationic dye and (b) a cyclohexenone as a dye assistant. Preferably, 2-cyclohexen-1-one,3,5,5-trimethyl is the dye assistant.
Type:
Grant
Filed:
February 2, 2001
Date of Patent:
April 22, 2003
Assignee:
BGB Stockhausen GmbH
Inventors:
Darrin McBane Guthrie, Harold Kenneth Greeson, Jr., Malcolm S. Haith
Abstract: The invention relates to a method for producing water-soluble or water-swellable polymerizates with a low residual monomer content from acrylic acid and/or acrylic acid derivatives. The method is characterized by the addition of a nitrogen compound to the monomer solution to be polymerized, an in that the polymerizate is subsequently heated at temperature of 120 to 240° C. The polymerizates produced according to the inventive method are suitable as flocculants, dispersants and absorbers.
Abstract: The invention relates to a process for producing water-soluble or water-swellable polymer products with low levels of residual monomers using acrylic acid and/or acrylic acid derivatives, which process is characterized by adding a nitrogen compound to the monomer solution to be polymerized and subsequent heating of the polymer product at temperatures of from 120 to 240° C. The polymers produced accordingly are suitable for use as flocculants, dispersants and absorbents.
Abstract: A superabsorbent polymer comprising a delayed absorption superabsorbent polymer having a free water absorbency property of absorbing less than about 3 grams of aqueous saline per gram of superabsorbent polymer in about 6 seconds, for a full particle size distribution of superabsorbent polymer ranging from about 40 micrometers to about 890 micrometers.
Type:
Grant
Filed:
June 26, 2000
Date of Patent:
February 4, 2003
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Fang Sun, Bernfried A. Messner, Heather S. Jones
Abstract: The invention relates to a process for dewatering sewage sludges using plate filters, wherein the flocculated sewage sludge treated by means of organic polymer flocculation aids and optionally other auxiliary agents is separated from the major amount of water of the flocculated sewage sludge on a plate filter by means of hydrostatic filtration, whereafter the partially dewatered sewage sludge is subjected to pressure filtration. The plate filters employed have filtrate outlet systems permitting filtrate discharge at a flow rate of 1.0 m/s at maximum. By conducting the process in this way, the dewatering capacity is substantially increased.
Type:
Grant
Filed:
October 27, 2000
Date of Patent:
February 4, 2003
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Josef Bartscherer, Hans Georg Hartan, Winfried Held, Fedor Ivanovitch Lobanov, Stanislav Vladimirovitch Chramenkov, Vladimir Alexandovich Sagorskij
Abstract: The present invention relates to an agent for cleansing the skin, containing a liquid natural and/or synthetic water-based latex emulsion excluding styrene-butadiene latices, exclusively at least one organic solvent which has a lower volatility than ethanol and a boiling point >78.32° C., and water.
Type:
Grant
Filed:
September 20, 2000
Date of Patent:
December 3, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Marcel Veeger, Andreas Klotz, Bernd Nauels
Abstract: The present invention relates to a load-bearing traverse, especially for conveying big bags. The present invention also relates to a method of conveying big bags.
Abstract: The invention relates to a storable and transportable and optionally utilizable mixture containing vegetable residues and at least one polymer product which absorbs water and/or aqueous liquids. The invention also relates to a process for producing said mixture and to the use thereof.
Abstract: The invention relates to an intermediate product for manufacturing polymers of lignin derivatives from the pulp industry, made by treating the lignin derivatives with phenol oxidizing enzymes in the presence of oxidation agents, characterized in that the lignin derivatives are (a) subjected to enzyme treatment for more than 3 hours in the presence of air, or (b) subjected to enzyme treatment for more than 10 minutes while air or oxygen is being passed through them, or (c) oxidized by treatment with chemical oxidation agents. The intermediate product is used in manufacturing polymers of lignin derivatives from the pulp industry, fiber-reinforced thermosetting composite materials from plant fibers, waterproof papers and cardboards, and thermosetting plastics from lignin derivatives.
Type:
Grant
Filed:
February 4, 2000
Date of Patent:
June 25, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Aloys Hüttermann, Andrzej Majcherczyk, Carsten Mai, Annette Braun-Lüllemann, Merle Fastenrath, Sonja Noetzold
Abstract: A process for producing water-soluble, cationic polyelectrolytes is described, wherein the polymerization of the water-soluble monomers is initiated at low temperatures using a combination of UV light, photoinitiator and a redox system, and is characterized in that the redox system is capable of initiating the polymerization only at temperatures higher than or equal to 20° C. The polymers have a high molecular weight and a low content of residual monomer.
Abstract: The present invention relates to a powdery, cross-linked polymer absorbing water and aqueous liquids formed of polymerized, unsaturated, acid groups-containing monomers that are present as salts neutralized to the extent of at least 50 mol-% and which optionally comprise further monomers which are copolymerizable with the acid groups-containing monomers as well as water-soluble polymers, the polymer being formed of acidic, polymerized monomers partially neutralized to the extent of 5-30 mol-%, relative to the acid groups-containing monomer portion. The polymer has a high retention, high liquid absorption under pressure, high swelling pressure, and a low content of soluble components.
Abstract: The invention relates to hydrophilic, highly swellable polymers for aqueous fluids, e.g. superabsorbants, which are coated with reactive, water-insoluble, film-forming, hydrophobic polymers and an additional reactive constituent which can react with carboxyl groups of carboxylate anions and form additional cross-links on the particle surface. The invention also relates to the production of superabsorber thus coated and their use in hygiene articles used to absorb body fluids. The products obtained by coating highly swellable, hydrophilic, insoluble polymers with reactive, water-insoluble, film-forming, hydrophobic polymers and an additional reactive component are characterized in that their absorption speed cam be adjusted in an controlled manner extended area according to the type and amount of reactive, water-insoluble, film-forming, hydrophobic polymers used in the coating and according to process engineering conditions chosen for said coating.
Type:
Grant
Filed:
October 21, 1999
Date of Patent:
May 28, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Gerd Jonas, Klaus Pflueger, Richard Mertens
Abstract: The invention relates to hydrous liquid paste or cream-like hand cleansing agents without organic solvents, especially a course hand cleanser with a rubbing agent. Said cleansing agents are characterized by a content of 10 to 30 wt. % of at least one vegetable oil from the group of triglycerides, saturated and/or unsaturated fatty acids, of 10 to 30 wt % of a tenside comprised of a fatty alcohol ethoxylate, at least one fatty alcohol ether sulfate and/or a salt of a sulfonated fatty acid, 10 to 65 wt. % water, each referring to the composition of the cleansing agent, and optionally 1 to 30 wt. % of at least one abrasive. In addition, the hand cleanser optionally contains at least one viscosity building agent and optional additional cosmetic auxiliary, accessory and/or active agents.
Type:
Grant
Filed:
May 1, 2000
Date of Patent:
April 23, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Volker Rosenberger, Andreas Klotz, Marcel Veeger, Beatrice Bruecher
Abstract: The invention relates to an absorbent insert for foodstuff packagings, the liquid-absorbing component of which is a superabsorbent polymer which, in a hitherto unrivaled fashion, persistently absorbs and retains large quantities of liquid even under high pressure load, protects the foodstuffs from bacterial decay, and prevents contamination of the packagingd goods by migrating soluble constituents of the polymer. This combination of properties of the superabsorbers used is expressed by the QSAP 0.3 quotient of retention according to the tea bag test+absorption against pressure (AAP) 0.3, divided by the amount of solubles (LA), which quotient is at least 20. Superabsorbers having such properties are obtained by using special combinations of crosslinkers. Furthermore, the invention relates to a process for producing said absorbent inserts and their use in foodstuff packagings, as ice substitute, and as leak-proofing means in transport packagings.
Type:
Application
Filed:
September 25, 2001
Publication date:
March 14, 2002
Applicant:
Stockhausen GmbH & Co. KG
Inventors:
Gerd Jonas, Helmut Klimmek, Frank Krause, Klaus Pfluger
Abstract: The invention relates to an absorbent insert for foodstuff packagings, the liquid-absorbing component of which is a superabsorbent polymer which, in a hitherto unrivaled fashion, persistently absorbs and retains large quantities of liquid even under high pressure load, protects the foodstuffs from bacterial decay, and prevents contamination of the packaging goods by migrating soluble constituents of the polymer. This combination of properties of the superabsorbers used is expressed by the QSAP 0.3 quotient of retention according to the tea bag test+absorption against pressure (AAP) 0.3, divided by the amount of solubles (LA), which quotient is at least 20. Superabsorbers having such properties are obtained by using special combinations of crosslinkers. Furthermore, the invention relates to a process for producing said absorbent inserts and their use in foodstuff packagings, as ice substitute, and as leak-proofing means in transport packagings.
Type:
Grant
Filed:
February 25, 1999
Date of Patent:
February 26, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Gerd Jonas, Helmut Klimmek, Frank Krause, Klaus Pflüger
Abstract: A process for producing fibrous materials for the manufacture of cellulose, paper or wood materials by using at least one dicarboxylic acid dialkyl ester and/or a copolymer of polyester-polyether and/or fatty acid polyol monopolyester, dipolyester, tripolyester and or higher polyester. Fibrous materials with an improved quality and higher yield are thus produced.
Type:
Grant
Filed:
August 30, 1999
Date of Patent:
February 5, 2002
Assignee:
Stockhausen GmbH & Co. KG
Inventors:
Ingo Von Medvey, Thomas Rajcsanyi, Peter Hänssle, Joachim Werres