Microemulsions are described which comprise: (a) water; (b) a fluoropolyoxyalkylene having hydrogenated end groups and/or hydrogenated repetitive units; c) an hydrocarbon C1-C20, preferably C1-C12, of aliphatic, aromatic, or mixed type, optionally containing halogens, preferably chlorine and/or bromine; (d) a fluorinated surfactant. Such microemulsions can be used in radical (co)polymerization pro...

Underground storage tank consisting of an internal metal structure (1), a static external facing (2) in contact with the surrounding soil (3) and a filler (5) located between the metal structure (1) and the static facing (2), the filler (5) being stabilized by a netting (6) secured onto the metal structure (1) by joint plates (7), while the netting is embedded in the filler (5) which is thickened ...

There is provided a novel series of O-carboxymethylated .alpha.- and .beta.-glycolipid compounds of the formula wherein R is an acyl residue of a fatty acid; R1 is-(CH=CH)m-(CH2)n-CH3; R2, R3, R4 R5 and R6 each are independently hydrogen, unsubstituted or substituted alkanoyl, arylalkyl or arylcarbonyl wherein said substituent is selected from halogen, C1-4 alkyl, trifluoromethyl, hydroxy an...

A refrigeration working fluid composition which is miscible or partially miscible at temperatures of less than 120.degree.C and which is immiscible at temperatures of at least about 120-180.degree.C, the refrigeration working fluid comprising: (i) about 65 to 95 weight % of a refrigerant, based on the total weight of the working fluid composition, the refrigerant comprising a blend of pentafluoroe...

Method of manufacture according to which the footwear is initially produced at an industrial level in the form of a semi-finished article without soles and with the upper incompletely bonded at the front part of the foot so that the patient can be fitted and the shape can be modified by reconstructing the exact shape of the foot and completing only after finishing of the shoe on the basis of the m...

A connection block 10 for pipes 14, made of aluminum or another suitable material, is provided, on one or more faces, with a conical seat 12 having a definitely flaring mouthpiece 18 and bounded by a bendable lip 20 for the coupling of said pipe 14, on which is produced an upsetting 16. The seat 12 extends into the mouthpiece 10 in an opening 26 of lesser diameter, in which is inserted the end 14'...

Microemulsions are described which comprise: (a) water; (b) a fluoropolyoxyalkylene having hydrogenated end groups and/or hydrogenated repetitive units; (c) an hydrocarbon C1-C20, preferably C1-C12, of aliphatic, aromatic, or mixed type, optionally containing halogens, preferably chlorine and/or bromine; (d) a fluorinated surfactant. Such microemulsions can be used in radical (co)polymerizat...

Thickening compositions consisting of: a) 45-98% by weight of polymers or copolymers, optionally cross-linked, of an unsaturated carboxylic acid constituting at least 70% by weight of the copolymer; b) 55-2% by weight of polyvinylpyrrolidone and/or of polyglycols of formula (I) c) 0-5% by weight of an inorganic or sulfonic acid and/or the salts thereof; wherein the compounds are as defi...

A joint with fast engagement and release, for coupling to the heald frames (2) of looms the end connecting rods (6) of the control linkage (3) for said frames, comprises: tailpieces (8) with a C-shaped seat (11) projecting from the bottom of the frames (2); levers (9) with a hook end (12) apt to engage into said seat (11) and the other end of which is pivoted onto the big end of said connecting ro...

A method for the preservation of grain in storage silos includes the steps of: compressing air taken from the environment and adjusting its flow rate, cooling said air and increasing its carbon dioxide content through sublimation of solid carbon dioxide and/or evaporation of liquid carbon dioxide, feeding said gaseous mixture into the storage silos, and controlling the temperature of the mixture f...

A screw cap for tight closure of a mouth of a container able to hold an effervescent or sparkling beverage; said mouth having, at the outer surface of a wall or neck of the container bounding the mouth itself, a counterthreading able to engage with the threading 5 of said cap. This comprises: a first screw element 1 having said threading 5 and able to connect the cap to said mouth, and a second se...

The invention concerns a dispensing cap which can be placed on the stem of a pump or a dispensing valve for a pressurised fluid, the cap having a head and a ring nut, able to move relative to each other and provided with elements co-operating with each other and selectively selectable to limit the travel of the head relative to the ring nut so as to place the cap itself in one of a plurality of ge...

Support structure resting on the ground floor for bathtub bodies in plastic of similar according to which the perimetrical edge 111 of the casing 11 of the tub 1 is supported by vertical uprights 4 and, on the bottom 112, by internal supports 5 built respectively by tubular metal elements 411-511 of which those 411 of the vertical uprights 11 are appropriately longer than those 511 of the internal...

A flexible heat-sealable web (w) is shaped continuously into a tubular cross-sectional shape, eg. as an intermediate stage in the production of infusion bags comprising severed and sealed lengths of the tubular-shaped web. The web is drawn along a shaped shoe (2) and side margins of the web are folded over opposite sides of the shoe by rollers (34) and fingers (36,38) to place the opposite side ed...

Identical Bragg reflection gratings (4) are formed by periodic variations of the refractive index of the core of an optical fibre (1) over a length of e.g. 1 to 2 mm. The gratings are spaced e.g. 1 m apart and addressed by optical pulses (7) emitted from a laser source (5) into one end (1A) of the fibre via a coupler (6). The reflections are delivered to a receiver (8) linked to an oscilloscope (9...

The packaging comprises at least one first wall (1), preferably a bottom. At the opposite edges of this wall, are joined other walls (2,3). At least one flap (5) connects the opposing walls. The flap is folded outwards when the packaging is set up forming a support component. - (Dwg.2/2)