Abstract: The partition wall for commercial vehicles comprises at least one fixed plate (20) and a sliding door (10) able to slide with respect to said fixed wall (20), predisposed to separate the cockpit of the vehicle from the loading compartment. The sliding door (10) is provided, along the upper edge and along the bottom edge, with a plurality of sliding wheels (11, 12) predisposed to slide respectively on an upper guide (13) and on a lower guide (14) associated with the structure of the vehicle. The sliding wheels (11, 12) have a grooved profile predisposed to be coupled with a corresponding rail (19) of said guides (13, 14) having conjugated profile.

Abstract: Herein is described a plastic package for food or food products which are ready for consumption. The package includes a first container of larger size, for a main food component and a second container, of smaller size, able to separately contain a supplementary food component. The package is characterized by the fact that the first bottom and/or the first closure lid of the first container have a cavity open to the outside and conformed to constitute a housing compartment for the second container by at least partial insertion of said the second container in the cavity of the first container.

Abstract: A vacuum or modified atmosphere package for food products which are susceptible to release liquids and/or gases. The package has 1) a tray made of plastic material, having a bottom and sidewalls terminating with a jutting edge. The tray includes at least two layers, of which an inward-facing layer is a sheet of a substantially open-cell expanded thermoplastic material having holes or slots on at least part of its upper surface, and a lower outward-facing layer of a gas-barrier composite film. The tray further has a peripheral frame made of plastic material and having barrier properties with respect to the diffusion of gases, the peripheral frame coupled to the tray edge all around the perimeter thereof and having substantially listel-like sides with an angular cross-section comprising two flanges of which a first flange juts out as a prolongation of the tray edge and a second flange engages the tray edge from beneath.

Abstract: A method of producing a substantially open-cell, expanded polystyrene sheet, comprising the steps of: forming a mixture comprising from 30 to 95% of polystyrene incorporating an aliphatic hydrocarbon with 4-6 carbon atoms, from 0 to 65% of polystyrene, and from 0.2 to 10% of a nucleating agent, mixing the mixture obtained and melting it by heating inside an extruder, bringing the mixture to a temperature of 130-150° C. in the final portion of the extruder, extruding the mixture in a lower-pressure atmosphere to produce an expanded sheet, which has a low density and a high capacity to absorb aqueous liquids, particularly if a surfactant is added to the starting mixture, and which, when coupled with two films of plastics material gives rise to a laminate suitable for the production, by thermoforming, of trays for foods which may release aqueous liquids.

Abstract: A method of producing a substantially open-cell, expanded polystyrene sheet, comprising the steps of:forming a mixture comprising from 30 to 95% of polystyrene incorporating an aliphatic hydrocarbon with 4-6 carbon atoms, from 0 to 65% of polystyrene, and from 0.2 to 10% of a nucleating agent,mixing the mixture obtained and melting it by heating inside an extruder,bringing the mixture to a temperature of 130-150.degree. C. in the final portion of the extruder,extruding the mixture in a lower-pressure atmosphere to produce an expanded sheet, which has a low density and a high capacity to absorb aqueous liquids, particularly if a surfactant is added to the starting mixture, and which, when coupled with two films of plastics material gives rise to a laminate suitable for the production, by thermoforming, of trays for foods which may release aqueous liquids.

Abstract: A sheet of expanded plastics material with absorbent properties towards aqueous liquids has a structure with intercommunicating cells and comprises at least one surfactant and at least one lubricating agent. The invention also relates to a tray (1) of plastics material for foods which may release liquids, comprising a base (2) and side walls (3), wherein the base (2) has holes (4) of 0.1-1.5 mm diameter in the surface (4) which is intended to contact the food, and is produced from a sheet as described above. Methods of producing the sheet and the tray are also described.

Abstract: A tray of plastics material for foodstuffs which may release liquids including a base and side walls constituted by an upper layer and a lower layer, the layers forming the side walls being joined together while those forming the base are spaced apart to define an interspace, in which the upper layer is pierced by holes having a diameter of 0.2-1.5 mm and is of foamed plastics material including a surfactant and the surface of the upper layer facing the interspace is rough.

Abstract: The invention relates to a novel stable form of cephradine, processes for its production and intermediates used therein.

Abstract: The invention relates to activated aminothiazolyl-oximinoacetic acid derivatives, their production and their use in the production of e.g. amides, in particular cephalosporin antibiotics.

Abstract: A new compound called N,N'-carbonyl-bis-(4-ethyl-2,3-dioxo)-piperazine of Formula I ##STR1## A process for the preparation thereof based on the reaction of 4-ethyl-2,3-dioxo-piperazine or a trimethylsilyl derivative thereof with carbonyl chloride or a derivative thereof.The use of the compound of Formula I as an intermediate in the preparation of compounds of Formula II ##STR2## where R is a radical, substituted in alpha position, of a molecule of an acid selected from the group formed by phenylacetic acid, p-hydroxy phenylacetic acid, a 6-(phenylacetamido)-penicillanic acid and a 7-(phenylacetamido)-cephalosporanic acid.

Abstract: A new compound called N,N'-carbonyl-bis-(4-ethyl-2,3-dioxo)-piperazine of Formula I ##STR1## A process for the preparation thereof based on the reaction of 4-ethyl-2,3-dioxo-piperazine or a trimethylsilyl derivative thereof with carbonyl chloride or a derivative thereof.The use of the compound of Formula I as an intermediate in the preparation of compounds of Formula II ##STR2## where R is a radical, substituted in alpha position, of a molecule of an acid selected from the group formed by phenylacetic acid, p-hydroxy phenylacetic acid, a 6-(phenylacetamido)-penicillanic acid and a 7-(phenylacetamido)-cephalosporanic acid.

Abstract: An improved process is disclosed for the preparation of 7-amino and 7-substituted amino-desacetoxycephalosporins in which the corresponding 6-substituted amino penicillin sulphoxide is heated in the presence of an acidic substance which causes expansion of the penam ring in the reactant to the .DELTA..sup.3 cephem ring in the product in the presence of a silicon containing compound. The process comprises adding sulphamide or a silylsulphamide or a silylsulphamoyl to the reaction or utilizing a silylsulphamide or silylsulphamoyl as the silicon containing compound.

Abstract: Amino-beta-lactamic acid salts, having the formula: ##STR1## wherein: (X-Y) may form a system having from 1 to 3 carbon atoms, with or without double bond, (a) closed, in which: X is an atom selected from among carbon, oxygen, nitrogen and sulphur; Y is methylene; Z is a carboxy, sulphonic or phosphonic group (b) open, which may comprise a double bond, in which: X is an atom of hydrogen or a methyl, hydroxymethyl or thiol group, Y is an acid radical chosen from the group formed by sulphonic, phosphonic and sulphoamidic acid; Z is missing. R is an atom or hydrogen, or a methoxyl or ethoxyl group. R.sub.1 is, when present, methyl, acetoxymethyl, acylthiomethyl, such as acetyl and benzoyl derivatives, methoxy, chlorine, carbamoyloxymethyl, azido, azidomethyl (alpha, beta)-thioethylamine or a thiomethyl-heterocyclic derivative of the thiazole, thiadiazole, triazole, tetrazole, oxazole, oxadiazole, pyrimidine and imidazole nuclei. R.sub.2 is an atom of hydrogen or a methyl, ethyl, benzyl or phenyl group.

Abstract: A 3-substituted 7-aminocephalosporanic acid of formula: ##STR1## where R.sub.1 is hydrogen, methyl of methoxy, Y is nitrogen, oxygen sulphur or a sulphoxide group, R.sub.2 is a group selected from among azide or from a radical having the formula R.sub.3 --S-- where R.sub.3 may be, among others, alkyl, aliphatic acyl, methyl and chlorine or methoxy substituted aromatic acyl, is prepared. A compound of formula ##STR2## (X being chlorine, carbamoyloxy or acetoxy) is added to a medium constituted by water, a compound which may be nitric acid or a compound of formula R.sub.3 --SH and a tertiary organic base. With a reaction isoelectric pH regulator, the mixture takes on a specific process pH analytical profile, the compounds of said mixture being reacted together at particular temperatures and with a specific process time.

Abstract: A process for the preparation of solutions of 7-aminocephalosporanic acids wherein there is obtained a salt of the general formula III: ##STR1## where R.sub.1 may be a group selected from among hydrogen, methyl, or a low molecular weight alkoxy, R.sub.2 is a group selected from among methyl, methoxy, azido, chlorine, carbamoylmethyl, acetoxy, thiomethyl, phenylthiomethyl and others, x means from 3 to 5 carbon atoms and y means from 2 to 4 carbon atoms is disclosed. The process is based on the reaction of a compound of formula I ##STR2## with a bicyclic amidine.

Abstract: There is described a process for the preparation of 7-(D(-)-alpha-amino-p-hydroxyphenylacetamido)desacetoxycephalosporanic acid in which a D(-)-p-hydroxy-N-(1-alcoxycarbonyl-2-propenyl)-alpha-aminophenylacetic acid salt is reacted with trimethylsilyl-2-oxazolidinone. The resulting reaction product is reacted in turn with an acyl chloride or an alkyl chloroformate to give a mixed anhydride which is reacted with a solution of 7-aminodesacetoxycephalosporanic acid prepared by silylation, in an anhydrous organic solvent, with trimethylsilyl-2-oxazolidinone.

Abstract: A method of producing a substantially open-cell, expanded polystyrene sheet, comprising the steps of: forming a mixture comprising from 30 to 95% of polystyrene incorporating an aliphatic hydrocarbon with 4-6 carbon atoms, from 0 to 65% of polystyrene, and from 0.2 to 10% of a nucleating agent, mixing the mixture obtained and melting it by heating inside an extruder, bringing the mixture to a temperature of 130-150° C. in the final portion of the extruder, extruding the mixture in a lower-pressure atmosphere to produce an expanded sheet, which has a low density and a high capacity to absorb aqueous liquids, particularly if a surfactant is added to the starting mixture, and which, when coupled with two films of plastics material gives rise to a laminate suitable for the production, by thermoforming, of trays of foods which may release aqueous liquids.