The invention relates to a method for preparing an organic starch ester. The method comprises mixing a starch material with an ionic liquid solvent to dissolve the starch, and then treating the dissolved starch with an organic esterifying agent to form an organic starch ester, and subsequently separating the organic starch ester from the solution. Microwave irradiation and/or pressure can be appli...

La présente invention est relative à des dispersions aqueuses d'au moins un polymère biodégradable comprenant une phase organique dispersée dans une phase aqueuse dispersante et dépourvues de composés organiques volatils, caractérisées par le fait que ladite phase organique comprend au moins un agent réducteur de viscosité présentant un paramètre de solubilité compris entre 15 et 28 (J.cm-3)0,5, d...

Emballage pour aliments comprenant un récipient 1 contenant des aliments et muni d'une ouverture supérieure 8 permettant l'accès aux aliments, et des premiers moyens de fermeture amovibles 13 de ladite ouverture supérieure, une paroi de fond comprenant au moins une zone percée munie de trous 7 adaptés pour empêcher le passage d'aliments tout en permettant le passage de vapeur d'eau, l'emballage co...

A radiation transmitting or sensing element is placed in a generally elongat ed holder of resilient material so that, if it is distorted by an accidental impact or otherwise, it will automatically re-orient itself when the intruding force i s released. The invention is especially useful in safety accessories for automatic overhead doors, garages, and the like.

L'invention concerne un actionneur comportant un corps ayant une cavité cylindrique, et une tige s'étendant au travers d'une extrémité de la cavité en étant solidaire d'un piston monté à coulissement axial dans la cavité de façon à délimiter dans celle-ci deux chambres hydrauliques, l'actionneur comportant des moyens additionnels de sortie de la tige qui comportent. .cndot. un moyen d'antirotation...

There are provided herein a method and an apparatus for deposition of films of coating materials on a substrate, of particular use in obtaining superconductive composite tapes for deposition of films of superconductive oxides and/or buffer layers. A step of deposition of the film on the substrate is associated to a step of gas treatment in situ, in which a flow of gas is sent towards a working sur...

Provided herein are a method and an apparatus (1) for making a layer (2) of coating material (3) on a tape substrate (4), in particular for making superconductive tapes. A precursor (12) of the coating material (3) evaporation area (13), and through the evaporation area evaporated coating material (13) to enable deposition of the (3) on one face (17) of the is evaporated so as to the substrate (4)...

There are provided herein a superconductive composite tape and a method of fabrication thereof: a tape having a layer made of superconductive material positioned on a substrate is etched, for example by using laser equipment, in order to obtain a plurality of grooves through the superconductive material layer and delimit a plurality of superconductive filaments, which are substantially parallel to...

It is provided a method for making biaxially textured layers on non-textured substrates, in particular for making intermediate buffer layers in superconductive composite tapes. A non-textured substrate is provided with a surface having a roughness of less than approximately 10 nm and preferably less than approximately 5 nm. This is followed by a deposition step, in which a deposition material is d...

Device (10) and method to automatically change the thread in a sewing needle on textile machines, comprising two or more feed reels (14) feeding two or more relative threads (11a, 11b) having a different characteristic from each other. The device (10) comprises a thread-change assembly arranged in substantial correspondence with a relative needle (12); each thread-change assembly includes cutting ...

A mobile treatment surface ( 1 ) for battery formation comprising: a bearing surface ( 11 ) for the batteries; a delivery conduit ( 3 ) for the acid to the batteries to be formed; a collecting conduit ( 4 ) for the acid outgoing from said batteries to be formed; acid circulation means ( 9 ) and means for delivering direct current ( 50 ) to the forming batteries. The delivery conduit ( 3 ) comprise...

A distributor (1) for acid circulation during the battery formation treatment (3) in a forming installation (5), composed by: a bearing surface (4) for the batteries (3); a delivery conduit (14) for the acid incoming in the batteries (3) under formation; a collecting conduit (15) for the acid outgoing from the batteries (3) under formation; means for delivering direct current to the batteries unde...

The invention concerns a so-called fold-away bed, to be used in the fields of camping, seamanship, furnishing of bedsits and in all other dwellings where there is a lack of space, for which reason the components of the furniture must take up a minimum amount of space. Such a bed is characterised in that, in rest state, it is lifted until it comes into contact with the ceiling of the room in which ...

The invention concerns a device for adjusting the inclination and, consequently, the height of the arms ( 2 ) with respect to the plane of the seat of a chair. Such a device is suitable for being applied in particular to office chairs and is characterized in that it consists of a gas spring ( 5 ), coupled with a lever arm ( 6 ), so as to form a link mechanism fitted between the arm and the back.

Articles (2) advancing along a predetermined feed path (3) are diverted by a device (1) equipped with a supporting structure (4) and, actively associated with the structure, a plurality of single diverter elements (9) capable of movement between a first position, in which the advancing articles (2) can pass in succession along the feed path (3), and a second position in which the diverter elements...