Abstract: A section of a tubular foodstuff casing closed at one end with an end with a flat transverse seam, wherein the casing comprises a heat-sealable polymer material, or has a layer or a coating thereof on an inner side thereof, or wherein the casing comprises (i) uncoated or coated textile material, (ii) knitted material and/or, (iii) nonwoven, or non-fiber-reinforced or fiber-reinforced cellulose, where said flat transverse seam comprises a jointing seam comprising a sealed seam and/or a adhesive seam.

Abstract: The invention concerns a biaxially stretched and thermoset tubular seamless single- or multi-layered foodstuff skin wherein the layer, or, a multi-layered skin wherein at least one of the layers, contains a block copolymer with “hard” aliphatic polyamide blocks and “soft” aliphatic polyether blocks, the block copolymer corresponding to one of formulae (I) to (III), Ea—(NH—[CH2]x—CO)m—Xa—(A—O)n—A Xa—(CO—[CH2]x—NH)m—Ea (I), (II), —[X—(CO—[CH2]x—NH)o—Y—X—(A—O)p—A]-(III). The invention is particularly suitable as a skin for a sausage which is to be boiled or heated in water, and does not form folds when the filling is introduced manually, with no or only slight pressure.

Abstract: The invention relates to edible molded bodies in the form of a flat or tubular film based on plastifiable biopolymers, the cleavage products or derivatives thereof and/or synthetic polymers from natural monomers, characterized in that they are produced according to a method comprising the following steps: a) the biopolymers, cleavage products or derivatives thereof and/or synthetic polymers are mixed with at least one edible plasticizer, at least one lubricating agent and at least one cross-linking agent, b) the mixture thus obtained is melted into a thermoplastic material, c) said material is extruded and d) the product obtained by extrusion is calendered and/or stretched or blown and deformed into the edible molded body. The molded bodies cited in the invention are suitable for use as food wrappers for sausages and boiled ham, and are particularly suitable for use as seamless sausage casings.

Abstract: A seamless, tubular food casing produced by extrusion or coextrusion, wherein at least one layer of the casing comprises a mixture of: a) thermoplastic starch and/or a thermoplastic starch derivative and b) at least one further polymer, in which the further polymer is a homopolymer or copolymer comprising at least one selected from the group consisting of hydroxycarboxylic acid units, a poly(ester urethane), a poly(ether urethane), a poly(ester ether urethane) and a poly(alkylene carbonate) of the formula —[CHR1—CHR2—O—CO—O—]n, where R1 and R2 independently of one another are a hydrogen atom or a (C1-C4)alkyl group and n is an integer from 10 to 5000, and wherein the casing carries internally at least one transferable coloring, aroma substance and/or flavoring.

Abstract: The invention relates to a smoke-permeable, seamless, tubular, polyamide-based food casing, comprising a mixture consisting of an aliphatic polyamide and/or an aliphatic copolyamide, an aliphatic and/or partially aromatic polyamide and/or an aliphatic and/or partially aromatic copolyamide, which is modified with glycol or polyglycol, and a bubbling agent. The casing contains bubbles or vacuoles which distinctively improve smoke permeability. Said casing is particularly suitable as artificial casing for smoked sausages.

Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.

Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.

Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.

Abstract: The invention concerns a biaxially stretched and thermofixed tubular seamless single- or multi-layered foodstuff skin wherein the layer, or, in the case of multi-layered skins at least one of the layers, contains a block copolymer with “hard” aliphatic polyamide blocks and “soft” aliphatic polyether blocks, the block copolymer corresponding to one of formulae (I) to (III), Ea-(NH-[CH2]x-CO)m-Xa-(A-O)n-A Xa-(CO-[CH2]x -NH)m-Ea (I), (II), -[X-(CO—[CH2]x-NH)o-Y-X-(A-O)p-A]-(III). The invention is particularly suitable as a skin for sausages which are to be boiled or heated in water, and does not form folds when the filling is introduced manually, that is with no or only slight pressure, i.e.

Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.

Abstract: An at least four-layer tubular biaxially oriented food casing having an outer layer which includes a mixture of at least one aliphatic and at least one partly aromatic (co)polyamide with or without pigments, and an inner layer which includes aliphatic (co)polyamide, wherein, between these layers, a layer of an ethylene/vinyl alcohol copolymer or a blend of the ethylene/vinyl alcohol copolymer with an aliphatic or partly aromatic (co)polyamide and/or with an olefinic (co)polymer and/or an ionomer resin and a layer of an olefinic (co)polymer with or without adhesion promoters, pigments, and/or UV absorbers are arranged. The casing has a high water-vapor and oxygen barrier. It is particularly suitable as synthetic sausage casing, and can also be used for packaging cheese or animal feed.

Abstract: A polyamide-based sausage casing of a polymer blend comprisinga) nylon 6,b) 5-50% by weight, based on the total weight of all polymers in the layer, of ab1) aliphatic copolyamide containing units of the formulae --NH--?CH.sub.2 !.sub.5 --CO-- and --NH--?CH.sub.2 !.sub.m --CO--where m is an integer from 7 to 11, orb2) an aliphatic copolyamide containing units of the formulae --NH--?CH.sub.2 !.sub.5 --CO--, --NH--?CH.sub.2 !.sub.n --NH-- and --CO--?CH.sub.2 !.sub.o --CO--, where n is an integer from 6 to 12 and o is an integer from 7 to 10, orboth b(1) and b(2); andc) 0-20% by weight of an amorphous copolyamide containing hexamethylenediamine, and at least one of terephthalic acid and isophthalic acid units; andd) 0-20% by weight of a polyolefin modified by carboxyl groups.

Abstract: A semipermeable, porous, asymmetric membrane containing a polyetheramide which contains at least one or more dicarboxylic acid derivatives and aromatic diamines having a portion. The membrane is suitable for applications where contamination by glycerol or other platicizers or pore fillers must not be tolerated, may be dried without using a pore filler such as glycerol, does not collapse upon drying, and are sufficiently hydrophobic to be wetted again after complete drying.

Abstract: A macroporous, asymmetric, hydrophilic membrane is described, which contains a copolyamide which has the following recurring structural units:(A) --OC--Ar.sup.1 --CO--and also three different structural units of those mentioned below:(B) --NH--Ar.sup.2 --NH--(C) --NH--Ar.sup.3 --NH--(D, E, F) --NH--Ar.sup.2 --Z--Ar.sup.3 --NH--where the symbols Ar.sup.1, Ar.sup.2, Ar.sup.3 and Z have the following meaning:Ar.sup.1 is a 1,4-phenylene or another bivalent C.sub.6 -C.sub.r aromatic or heteroaromatic radical in which radical the bonds are in para or comparable coaxial or antiparallel position, Ar.sup.2 and Ar.sup.3 are 1, 2 phenylene, 1,3-phenylene or 1, 4-phenylene radicals and Z is one of the following bivalent radicals --O--, --CH.sub.2 --, --C(CH.sub.3).sub.2, --C(CF.sub.3).sub.2 --, --SO.sub.2 --, --NHCO--, or --O--Ar.sup.2 --O--.

Abstract: This invention relates to new aromatic polyethers, preferably polyphenylene ethers, containing keto groups in side chains and their use.