Hoechst Aktiengesellschaft

Wolfgang Klendauer

Klaus-Dieter Hammer

Gunter Gerigk

Max Bytzek

Walter Busch

Martin Schroder

Horst Pietruck

Klaus Dieter Hammer

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.

Tubular packaging material

This invention relates to a process for coating the surface of a shaped article of cellulose hydrate with a layer of polymer material which comprises applying to the surface of a shaped article in the gel state and based on cellulose hydrate, a liquid layer of an aqueous solution of a chemically modified protein obtained by mixing an aqueous alkaline protein solution with an aqueous solution of N-methylolacrylamide or N-methylol-methacrylamide or of the alkoxy derivatives thereof of aliphatic alcohols with 1 to 8 carbon atoms, particularly of organic, tetrafunctional, doubly unsaturated compounds of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6 carbon atoms, and

Shaped article of cellulose hydrate with a coating of plastic material

This invention relates to a process for coating the surface of a shaped article of cellulose hydrate with a layer of polymer material which comprises applying to the surface of a shaped article in the gel state and based on cellulose hydrate, a liquid layer of an aqueous solution of a chemically modified protein obtained by mixing an aqueous alkaline protein solution with an aqueous solution of N-methylol-acrylamide or N-methylol-methacrylamide or of the alkoxy derivatives thereof of aliphatic alcohols with 1 to 8 carbon atoms, particularly of organic, tetrafunctional, doubly unsaturated compounds of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6 carbon atoms, and

This invention relates to a process for the production of a thermoplastic synthetic material of chemically modified protein, which comprises mixing an aqueous alkaline protein solution with an aqueous solution of a tetrafunctional, doubly unsaturated, organic compound of the general formula ##STR1## in which R.sub.1 is hydrogen or an alkyl group with 1 to 18 carbon atoms,

Process for the production of thermoplastic synthetic materials and

This invention relates to a process for the production of a shaped body from a cellulose derivative which comprises extruding a viscose solution through a shaping die into a precipitation bath and passing the shaped body thus formed through regenerating and washing baths, then treating the body with an acid aqueous solution of a secondary chemical plasticizer, drying it by heating, and finally moistening it with water after drying, said viscose solution being mixed with a liquid containing alkyl-trimethylol-urea of the following general formula ##STR1## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, and/or with a liquid containing alkyl-ethylene-urea of the following general formula ##STR2## wherein n is a whole number between 11 and 19, preferably between 15 and 18, and especially the number 17, or with a liquid containing alkylamine-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR3## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, or with a liquid containing alkylamide-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR4## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17.

Process for the production of a plasticized shaped body from a cellulose

This invention relates to a process for the production of a shaped article of a plastic material of chemically modified protein, which comprises mixing an alkaline aqueous protein solution with an aqueous solution of an organic tetrafunctional, unsaturated compound of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6 carbon atoms, and

Process for the production of shaped articles of plastic material

This invention relates to a process for the production of a thermoplastic synthetic material of chemically modified protein which comprises mixing an aqueous alkaline protein solution with an aqueous solution of a tetrafunctional, doubly unsaturated compound of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6, preferably 1 to 3, carbon atoms, and

Process for the production of thermoplastic synthetic materials of

This invention relates to a process for the preparation of a cellulose hydrate moulding which comprises (a) treating a cellulose hydrate moulding while in the gel state, for a period within the range of from 10 seconds to 20 minutes, with an aqueous liquid having dissolved therein at least one plasticizer, a chemical cross-linking agent comprising at least one cyclic urea compound having at least 2 N-methylol groups, and at least one cross-linking catalyst, (b) drying the moulding to a residual water content of from 8 to 12% by weight, and (c) heating the moulding at a temperature within the range of from 100.degree. to 150.degree.C for a period of from 30 seconds to 20 minutes. The invention also relates to a cellulose hydrate moulding prepared by the novel process.

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Wiesbaden, Germany

Wolfgang Klendauer