The use of a liquid for the preparation of a rigid polyurethane and/or polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a blowing agent characterised in that the liquid is an inert, insoluble, non-blowing liquid. CFC-free foams may be obtained showing good insulating properties.

E 36280S Manufacture Of Rigid Foams And Compositions Therefor The use of a liquid for the preparation of a rigid polyurethane and/or polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a blowing agent characterised in that the liquid is an inert, insoluble, non-blowing liquid. CFC-free foams may be obtained showing good insulating properties.

E 36280T Manufacture Of Cellular Polymers And Compositions Therefor A method for the preparation of a flexible foam, an integral skin foam or a microcellular elastomer by reacting an organic polyisocyanate and an isocyanate-reactive composition comprising at least one isocyanate-reactive compound of molecular weight of 1000 to 10000 and a functionality of 2 to 4 in the presence of a blowing agent,...

Solvents for salt-gradient anion-exchange separation of nucleic acids, especially double-stranded DNA and especially by liguid chromatography, are improved by replacing NaCl as the eluting salt with any of a wide range of alkyl ammonium salts and can be used to elute nucleic acids in strict order of increasing length, with reduced sensitivity to elution temperature and salt concentration. Anion-ex...

This disclosure relates to an impact attenuating device (10) such as a truck mounted attenuator includes at least two cartridges (14, 16), which are secured together by flanges (40) and angled backing elements (42) on adjacent portions of the upper and lower sheets (22, 24) of the cartridges. The outermost bay (60) of the impact attenuating device from the truck includes stiffening elements (68) o...

Metallic dispenser container including a neck with a diameter greater than 22 mm on which the valve mounting cup is seamed by external seaming. Between the inside of the neck and the part of the cup which penetrates the neck, a clearance greater than 1 mm is left. Method of manufacture of such a container.

Boîtier distributeur métallique comportant un col de diamètre supérieur à 22 mm sur lequel la coupelle de valve est sertie par sertissage externe. Entre l'intérieur du col et la partie de la coupelle qui pénètre dans le col, on laisse un jeu supérieur à 1 mm. Et un procédé de fabrication d'un tel boîtier.; Metallic dispenser container including a neck with a diameter greater than 22 mm on which th...

2107352 9217337 PCTABS00016 An ultraviolet curable blend composition comprising (exclusive of any solvent present): (a) about 35 % to about 65 % by weight of a first acrylated aliphatic urethane having a molecular weight of between about 500 and 2000 and formed by the reaction of (i) a first multifunctional acrylate with a molecular weight of between about 190 and 500 and containing at least three...

A chicken raising facility includes a building, linked belt conveyors installed in a horizontal fashion within the building, and a driving mechanism to move the linked belts. The upper surfaces of the linked belts form compartments to raise chickens directly on the linked belts. The linked belts have floor panels connected together to form belts that bend freely. Compartment walls are arranged on ...

This relates to a connecting device for high-pressure piping. There is a casing 1 in which a clamp 6 is positioned. This has an axially movable operating part 8 on which various locking elements 9 are provided. Between the locking elements 9 and the operating part 8 there are bending points 14 which enable the locking elements 9 to be orientated. Each locking element has a radially projecting oper...

This sachet, intended for packaging primary packaging products or other products, has an external envelope formed from two pieces of material cut out and disposed flatly one upon the other, at least one of the pieces of cut-out material being permeable to steam for the steam sterilisation of the product to he packaged which is in the sachet. The piece of cut-out material (3) allowing steam to pass...

The water system has a balloon (1) inside a cover (2) for the domestic hot water storage, and the space between the balloon and the cover forms a hot water jacket for the heating (3). A primary circuit (C1) comprising a flow (4) and return (5) is connected through the cover (2) to the hot water jacket (3), and an individual heating circuit (C2) is similarly connected with a flow and return (6,7). ...

A rotor 1 rotatably mounted in a housing 9 has a drive or driven shaft 2 projecting from the housing. A circumferential array of radial cylinders 3 contain free pistons 5. The pistons slidably engage an elliptical peripheral track 8 secured to the housing. Each piston 5 defines a variable-volume chamber 3a at the radially inner end of its associated cylinder 3, where the cylinder is provided with ...

A hydraulically operated rotary drive includes a housing which is closed in hydraulically tight manner by flat covers and can be connected to a source of pressure fluid, a rotatable shaft extending through the covers out of the housing and a belt which is arranged at least in part within the housing with the formation of movable pressure chambers and is operatively connected to the shaft. In order...

A belt-driven rotary drive having a belt closed upon itself which is connected, within a pressure fluid-tight housing over roller-shaped bodies with the formation of movable pressure chambers, to a rotatable shaft which is extended out of the housing and the movable pressure chambers can be acted on by pressure fluid. In order further to develop a belt-driven rotary drive of this type in such a ma...

An apparatus for the packaging of articles with pieces of sheet of heat-shrinking material includes three coplanar feed, wrapping and product delivery conveyors, a conveyor for delivering sheets of the wrapping material and wrapping device for wrapping the products to operate in a continuous operation, a device is provided for operating the machine continuously and the device for supplying the she...

A structure with removable cleaning body and brush obtained with said structure, addressed to the field of cleaning equipment for floors and other surfaces. It consists of a structure 5 - intended to be grasped or connected to a stick 11 or to the plate 10 of a brush- type structure - carrying a removable cleaning body 1 with several surfaces 2, having the same or different cleaning characteristic...

The Biocomplemento is a new biological tank of the "rotating biological drum" type suitable for removing any organic pollution present in effluents in the dissolved or suspended states, as occurs in the most well-known purification systems. This is proposed as an alternative to other existing solutions for the treatment of sewage and sludge. It can solve biological, chemical and physical problems ...

Conventional child seats on adult bicycles mean that the child has to remain totally motionless and, therefore, must not only check its natural desire to move about, but is also vulnerable to all the health risks resulting from its passive exposure to the external elements. With the aim of allowing the child to pedal at the same time as the adult, thereby actively participating in driving the mean...

The invention relates to an automatic spreader for knitted fabrics with an enlargening calender having a spreading table and a spreading carriage alternatively movable on said table and in which said spreading carriage (11) has an opening (13) in the middle which is transversal to the table, the sides of said opening having horizontal guides (14) transversal to the direction of the spreading of th...