Patents by Inventor Klaus-Dieter Hammer

Klaus-Dieter Hammer 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).

  • Patent number: 6235302
    Abstract: The present invention relates to a regenerated cellulose based sponge material with an inner viscose fiber reinforcement having a staple fiber length of 5-50 mm and impregnated with a biocide agent. Also disclosed is a regenerated cellulose based sponge material with an inner cotton fiber reinforcement having a staple fiber length of 5-50 mm and impregnated with a biocide agent. The coagulation and regeneration takes place in a bath that has a pH of 13 or higher and which includes Glauber's salt, NaOH and water.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: May 22, 2001
    Assignee: Kalle Nalo GmbH & Co. KG
    Inventors: Leo Mans, Klaus-Dieter Hammer
  • Patent number: 6048917
    Abstract: The invention relates to a bonded nonwoven fiber fabric and packaging films strengthened with such a fabric, especially sausage casings based on celluloses. The nonwoven fiber fabric itself can be used as teabag paper. Bonding is achieved through treatment of a solution comprising cellulose, N-methylmorpholime-N-oxide and water. Bonding can be strengthened by a polyamine polyamide epichlorohydrin resin added to the fibrous pulp.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: April 11, 2000
    Assignee: Kalle Nalo GmbH & Co. KG
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig
  • Patent number: 6033698
    Abstract: A fiber-reinforced, tubular food casing based on regenerated cellulose, which is produced using an amount of viscose solution which is decreased by 10 to 30% in comparison with the standard casing at a spinning speed increased by at least 25%.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 7, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Herbert Gord, Gerhard Grolig, Manfred Siebrecht
  • Patent number: 6033618
    Abstract: A seamless cellulose-based tubular film is produced by extrusion of an aqueous cellulose-N-methylmorpholine N-oxide solution.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: March 7, 2000
    Assignee: Kalle Nalo GmbH & Co. KG
    Inventors: Herbert Gord, Klaus-Dieter Hammer, Helmut Sattler
  • Patent number: 5928737
    Abstract: Sausage casings of starch which can be processed like a thermoplastic and to processes for the production and use thereof. The sausage casing comprises a thermoplastic starch which is comprised of natural starch which has been converted into an amorphous state.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 27, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig, Dieter Beissel
  • Patent number: 5928738
    Abstract: The invention relates to a biaxially stretch-oriented and heat-set, single-layer or multilayer shirred stick, polyamide-based packaging casing which has a shirring density of up to 1:200, at a length of the shirred stick of from 40 to 100 cm, and to a process for producing the packaging casing.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: July 27, 1999
    Assignee: Kalle Nalo GmbH
    Inventors: Christian Auf Der Heide, Dirk Auf Der Heide, Klaus-Dieter Hammer, Karl Stenger
  • Patent number: 5811162
    Abstract: A food casing based on cellulose hydrate, which is preferably used as a sausage casing, in addition to cellulose hydrate, includes a copolymer having units of methyl vinyl ether and maleic acid and/or alkali metal maleate. It can additionally contain further polymers.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: September 22, 1998
    Assignee: Kalle Nalo GmbH
    Inventors: Klaus-Dieter Hammer, Theo Krams, Martina Koenig
  • Patent number: 5736179
    Abstract: A cellulose-based tubular foodstuffs casing having a coating present on its inner and/or outer surfaces, the coating being composed of chitosan chemically linked to the cellulose.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: April 7, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Hermann Winter
  • Patent number: 5690977
    Abstract: A modified liquid smoke solution containing unmodified aqueous liquid smoke solution, an alkaline neutralizing agent, a synthetic and/or natural oil, a viscosity-increasing component, and one or more emulsifier(s) can be applied to the inner and/or outer surface of a cellulose food casing resulting in uniform smoke transfer to encased food.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: November 25, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Leo Mans, Manfred Siebrecht, Hermann Winter
  • Patent number: 5662971
    Abstract: A fiber-reinforced cellulose-based food casing which comprises alginic acid and/or alginate, and fats, fat-like compounds, and/or oils and a non-reinforced cellulose-based food casing which comprises a copolymer containing 80 to 20 mol % of units of the formula I and 20 to 80 mol % of units of the formula II or III ##STR1## in which R.sup.1 to R.sup.4 are identical or different and are hydrogen or (C.sub.1 -C.sub.6)alkyl,Z is O or N--R.sup.5,R.sup.5 is hydrogen or (C.sub.1 -C.sub.6)alkyl,X.sup.- is Cl.sup.-, Br.sup.-, I.sup.-, (C.sub.1 -C.sub.6)alkyl-SO.sub.2 --O.sup.-, (C.sub.1 -C.sub.6)alkyl-O--SO.sub.2 --O.sup.-, HSO.sub.4.sup.- or 1/2 SO.sub.4.sup.2-,n is an integer from 1 to 3 andm is an integer from 2 to 6, andfats, fat-like compounds, and/or oils useful as casings for sausages.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: September 2, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Theo Krams
  • Patent number: 5595796
    Abstract: The invention relates to an optionally fiber-reinforced foodstuff casing based on cellulose hydrate, which is impregnated on the inside with a mixture containing 40 to 200 mg/m.sup.2 of an adhesive component and 20 to 2000 mg/m.sup.2 of a non-stick component. The ratio by weight of adhesive to non-stick component is between 4:1 and 1:4. The foodstuff casing is used as sausage casing, in particular for keeping sausage, which has a second packaging in the form of a film or is provided with a dip coating. The casing shows improved peelability.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: January 21, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Theo Krams
  • Patent number: 5501886
    Abstract: A cellulose hydrate-based flat or tubular film which is useful as a food casing, particularly preferably as a sausage casing.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: March 26, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Leo Mans, Theo Krams, Hermann Winter
  • Patent number: 5480691
    Abstract: The invention relates to a tubular food casing, in particular a sausage casing, based on cellulose, which has a coated inner side for improved peelability which is achieved by the presence of polytetrafluoroethylene in the coating solution.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: January 2, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Leo Mans, Manfred Siebrecht
  • Patent number: 5370914
    Abstract: A tubular food casing, particularly sausage casing, wherein the inner surface of a sausage casing based on cellulose, is provided with a coating comprising alginates, alginic acid, chitosans, or a combination of these active substances, is distinguished by improved peelability.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: December 6, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Hermann Winter
  • Patent number: 5358784
    Abstract: A tubular food casing based on cellulose, which on its inner surface has a coating which comprises lecithin and at least one of alginate, chitosans, and casein, has improved peelability from its contents.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: October 25, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Hermann Winter
  • Patent number: 5316809
    Abstract: A tubular packaging casing, in particular sausage casing, including a cellulose base layer and a barrier layer against steam and atmospheric oxygen, which is free from chlorine. The barrier layer includes random copolymer based on copolymerized vinyl monomers. The vinyl monomers correspond to the general formula CH.sub.2 .dbd.CR.sup.1 --X, whereinR.sup.1 denotes a methyl group or hydrogen, andX denotes a (--OCOR.sup.2) group or a (--CO.sub.2 R.sup.2) group, with R.sup.2 denoting an alkyl group having 1 to 20, preferably 1 to 10, and in particular 1 to 5 carbon atoms.In a further embodiment, the copolymer also includes copolymerized vinyl monomers of the above formula except that X denotes a (CO.sub.2 H) group or a (CN) group.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: May 31, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht
  • Patent number: 5262211
    Abstract: A tubular foodstuff casing, in particular synthetic sausage casing, based on cellulose contains a di-n-didecyl-dimethylammonium compound as a fungicidal agent, which is optionally used in admixture with salts of sorbic acid, fungicidal heterocyclic compounds, such as an isothiazolone compound, or glycerol monolaurate. The coating prevents mold attack on the casing.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: November 16, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Hermann Winter
  • Patent number: 5143584
    Abstract: A paper for fiber reinforcement in a base layer of a cellulose-based packaging film, in particular a tubular artificial sausage casing, or for tea-bags, wherein the paper includes alginic acid and/or an alginate which is substantially insoluble in water. A process for producing the paper which includes adding a water-soluble alginate to an aqueous suspension of cellulose fibers and precipitating the water-soluble alginate so as to form a substantially water-insoluble alginic acid or alginate.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 1, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Hermann Winter
  • Patent number: 5096754
    Abstract: A film, preferably used as a tubular artificial sausage casing, having a base layer of a material which may be fiber-reinforced, wherein the material includes a mixture of cellulose hydrate and alginic acid and/or alginate. The alginate may be the calcium salt of alginic acid. In addition, a process for producing the film by the viscose process is also described, wherein a mixture of alkaline viscose solution and a soluble salt of alginic acid is coagulated by means of an acidic precipitating fluid.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: March 17, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Hermann Winter
  • Patent number: 5043194
    Abstract: The tubular packaging casing, in particular artificial sausage casing, based on cellulose contains a textile sheet-shaped structure which is surrounded by cellulose and gives the outside of the casing a sturdy texture.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: August 27, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Siebrecht, Klaus-Dieter Hammer