Hoechst Aktiengesellschaft

Gunter Gerigk

Klaus-Dieter Hammer

Max Bytzek

Klaus-Jurgen Bittner

Armin Kostner

Wolfgang Klendauer

Horst Pietruck

Wolf-Rainer Neeff

Lorenz Heiss

Richard Lenhart

Klaus Fischer

Rudolf Stryk

Disclosed is a supporting sheath for a longitudinally shirred packaging tube, comprising a generally tubular shaped supporting sheath comprised of a thermoplastic synthetic resinous material and having an inside diameter slightly larger than the outside diameter of the shirred packaging tube and a length substantially greater than the length of the shirred packaging tube, so that when a shirred packaging tube is placed inside of the supporting sheath, two projecting ends of the supporting sheath remain; a pair of generally planar disk elements, each including a central aperture therein, each of the disk elements having an outer diameter which is approximately equal to the diameter of the supporting sheath; each of the disk elements being adapted to be slid with its aperture over one of the projecting ends of the supporting sheath and abutted against the end of the shirred packaging tube contained in the supporting sheath and being adapted to contact the supporting sheath at least along its planar surface facing away from the packaging tube and along its outer circumferential edge when the sheath is turned back 180.degree. upon itself; and wherein each of the turned-back projecting ends of the supporting sheath has a permanently form-stable configuration produced by heat forming. Also disclosed is a functional unit comprising the supporting sheath and a shirred packaging tube, as well as a method for producing the functional unit.

Supporting sheath for a longitudinally shirred packaging tube

A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition comprising a cellulose hydrate and a plasticity enhancing amount of at least one substantially water insoluble plasticizing ester of an aliphatic monocarboxylic acid containing from about 9 to about 24 carbon atoms and a polyalcohol comprising at least two hydroxy groups at least one of which is esterified with said aliphatic monocarboxylic acid, and water and/or a plasticizer. Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing ester, introducing the resulting mixture into a precipitating bath and drying the precipitated shaped body. Tube-shaped articles are especially suited as sausage casings.

Shaped article comprising a permanently plasticized cellulose hydrate

Disclosed is a packaging material, preferably a sausage casing, comprising a layer based on cellulose hydrate, having a coating on one surface, this coating comprising a mixture of chemically different compounds comprising, as the first major component thereof, a natural oil comprising a vegetable oil, a triglyceride mixture of saturated vegetable fatty acids having from about 4 to 14 carbon atoms in their carbon chain, or a mixture thereof, and as the second minor component thereof, a chemically modified starch, a partially saponified polyvinyl alcohol or a micro-crystalline cellulose. Also disclosed is a process for manufacturing such sausage casings.

Internally coated tubular casing and process for the manufacture thereof

Disclosed is a packaging material suitable for manufacturing synthetic sausage casings, comprised of a cellulose hydrate base layer and a layer of vinylidene chloride containing copolymer on the base layer, as well as several methods for preparing the packaging material.

Process for preparing packaging material suitable for sausage casings

Disclosed is a packaging material suitable for manufacturing synthetic sausage casings, comprised of a cellulose hydrate base layer, an optional adhesive layer and a layer of a vinylidene chloride-containing copolymer, as well as several methods for preparing the packaging material and sausage casings therefrom.

A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition of high mechanical strength which is obtained by reacting a plasticized cellulose composition obtained by treating cellulose hydrate with a plasticity-enhancing amount of at least one plasticizing alkyl derivative which comprises an alkyl containing from about 8 to about 24 carbon atoms and which is selected from the group consisting of alkylamido-bis-dimethylene-triazinone-tetramethylol, alkylamino-bis-dimethylene-triazinone-tetramethylol, a substantially water insoluble ester of an aliphatic monocarboxylic acid containing from about 9 to about 25 carbon atoms, and a polyalcohol, such as glycerol or polyethylene glycol with a cyclic dimethylolurea derivative, and water and/or a plasticizer. Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing alkyl derivative, introducing the resulting mixture into a precipitating bath, washing the precipitated shaped body in the gel state, treating it with an acidic solution of the cyclic urea compound and drying it in the heat. Tube-shaped articles are especially suited as sausage casings.

Shaped article comprising a permanently plasticized cellulose

A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition of high mechanical strength which is obtained by treating a plasticized cellulose composition obtained by treating cellulose hydrate with a plasticity-enhancing amount of at least one plasticizing alkyl-derivative which comprises an alkyl containing from about 8 to about 24 carbon atoms and which is selected from the group consisting of alkylamido-bis-dimethylene-triazinone-tetra-methylol, alkylamino-bis-dimethylene-triazinone-tetra-methylol and a substantially water insoluble ester of an aliphatic monocarboxylic acid containing from about 9 to about 25 carbon atoms and a polyalcohol, such as glycerol or polyethylene glycol, with a synthetic polymer containing recurring oxyalkylene units and at least one, preferably at least two, terminal N-methylolcarbamate groups, and water and/or plasticizer. Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing alkyl derivative, introducing the resulting mixture into a precipitating bath, washing the precipitated shaped body in the gel state, treating it with an acidic solution of the synthetic polymer and drying it in the heat. Tube shaped articles are especially suited as sausage casings.

Tubular packaging material

This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching end walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the end walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means. The invention also includes processes for the production of the sheathed hollow cylindrical stick.

Method of making sheathed tubular stick

Disclosed are fiber-reinforced articles made of chemically-modified protein, such as sausage casings, and a method of producing such articles characterized by the steps of reacting a solution of a protein such as casein with at least two types of chemical modifying agents.

Fiber reinforced chemically modified protein articles

A shaped article, especially a tube-shaped article, including a chemically modified cellulose hydrate and water which comprises:

Shaped article comprising cellulose hydrate which is chemically modified

This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching the front walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the front walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means. The invention also includes processes for the production of the sheathed hollow cylindrical stick.

Method of making sheathed stick

This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching the end walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the end walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means. The invention also includes processes for the production of the sheathed hollow cylindrical stick.

Sheathed tubular stick

A regenerated cellulose sausage casing having a fiber fleece embedded therein, for dry sausages. The improvement comprises an outer surface exhibiting at least part of the fibrous roughness of the fiber fleece embedded therein.

Growing community of inventors

Oberursel, Germany

Gunter Gerigk