A method for preparing a flexible polyurethane foam, wherein a polyether-polyol having an average molecular weight from 1000 to 8000 and an average functionality not larger than 4, is brought into reaction with organic polyisocyanates in the presence of a foam stabilizer, a catalyst and a blowing means comprising methylformate, wherein a cross-linker/extender and/or an amine catalyst with delayed ...

A system for handling a flexible thin wall tubular extrudate (17) and for cutting-off a predetermined length sleeve (18) of the extrudate (17) and delivering the sleeve (18) to a discharge station (23). A pair of grippers (7,8) is movably mounted on carriage assemblies (5,6) which move the grippers horizontally and transversely with respect to the axis of the extrudate (17). The leading gripper pr...

Rigid mould for moulding rubber tyres, constituted by a core 3 for defining the inner shape of the tyre, lateral portions 2 and a ring 1 of sectors. So as to be able to close such a mould, all the parts are designed to slide over each other during the final phase of their closing movement.

The manufacture of a reinforcement for a tire comprises the following steps: (a) a continuous cord is hooked to retention means disposed in two circles which are a distance apart which corresponds to the length of the path of a cord from one side of the reinforcement to the other so that the cord, disposed in this way, defines a cylinder by a plurality of passes back and forth from one retention m...

A method for preparing a flexible polyurethane foam, wherein a polyether-polyol having an average molecular weight from 1000 to 8000 and an average functionality not larger than 4, is brought into reaction with organic polyisocyanates in the presence of a foam stabilizer, a catalyst and a blowing means comprising methylformate, wherein a cross-linker/extender and/or an amine catalyst with delayed ...

La présente invention concerne une fixation de sécurité pour ski destinée à maintenir l'avant d'une chaussure de ski, comportant un socle 4 fixé au ski et dont est solidaire un pivot vertical 7, un corps 6 monté basculant, dans sa partie centrale, sur ce pivot 7, une mâchoire 11 de retenue de la chaussure montée mobile par rapport au corps 6 sur la partie postérieure de celui-ci et un mécanisme...

L'invention est relative à un abri repliable tel que parasol, abri de marché, abri de camping, ou similaire, destiné notamment à protéger des intempéries, soleil ou pluie, une surface au sol.

L'abri 1 est formé d'une toiture en toile soutenue par une armature rétractable 3 montée sur un mât 4 qui repose sur le sol par l'intermédiaire d'un pied 5.

Selon l'invention, le pied 5 présent...

A method for preparing a flexible polyurethane foam, wherein a polyether-polyol having an average molecular weight from 1000 to 8000 and an average functionality not larger than 4, is brought into reaction with organic polyisocyanates in the presence of a foam stabilizer, a catalyst and a blowing means comprising methylformate, wherein a cross-linker/extender and/or an amine catalyst with delayed ...

A method for preparing a flexible polyurethane foam, wherein a polyether-polyol having an average molecular weight from 1000 to 8000 and an average functionality not larger than 4, is brought into reaction with organic polyisocyanates in the presence of a foam stabilizer, a catalyst and a blowing means comprising methylformate, wherein a cross-linker/extender and/or an amine catalyst with delayed ...

The invention concerns a method for monitoring a processor system which is in an undefined operating state, in which the processor which has gone out of normal operation is reset by a reset pulse into a correct operating state, and in which the processor periodically polls a monitoring circuit (watchdog), which generates the reset pulse if the processor does not poll it within a preset time. The d...

1. Process for carrying out a combined gas turbine/steam turbine process in which the gas turbine process is carried out by means of a fuel gas which has been obtained from solid carbonaceous material and subsequently de-sulphurated, and the steam turbine process is carried out by means of the steam obtained upon combustion of the carbonaceous gasification residue, and in which the combustion of t...

It now has been found that uncured modified rubber compositions comprising mixtures of elastomers and a reinforcing filler can be prepared having improved properties. More particularly, such uncured modified rubber compositions can be prepared by a process which comprises the steps of (A) preparing a first mixture comprising an elastomer, at least one reinforcing filler and at least one chemical...

The invention relates to epoxy resins reinforced with aramid fibres, in which the adhesion between the fibres and the resin is improved by pretreatment of the fibres with organosilanes.

The invention relates to a drum brake with two shoes, each having a web (16) and a rim (18), of which the face confronting the drum receives a friction lining (20). The drum brake is arranged on a supporting plate (10) and also includes a mechanical control lever (34) comprising a body of considerable length and of small thickness in relation to its width, the body having, at a first end (36), an ...

A biodegradable shaped product comprising an expanded high amylose starch product having at least 45% by weight amylose content, said expanded product having a low density, closed cell structure with good resilience and compressibility. Another embodiment provides a biodegradable packaging material comprising an expanded, low density, closed cell starch product, the starch having at least 45% by w...

The film is prepared by (i) melting and forming a film of a paraphenylene sulfide block copolymer essentially composed of recurring units (A): and recurring units (B): the molar fraction of recurring units (A) being from 0.50 to 0.98, and having a melt viscosity (???*) of from 1,000 to 50,00 poses as measured at 310 DEG C and shear rate of 200 sec <1>; and (ii) after cooling, ...

A process and device making possible the guidance of the drilling tool through geological formations including an analytical device for directional geological analysis that carries out measurements as the drilling advances for guiding the drilling tool through the geological formation. The drilling column at its lower end includes the drilling tool (1) driven by a turbine (2) mounted on an elbow (...

L'invention concerne un procédé de fabrication de plaques en résine acrylique colorées qui présentent, sur une surface, des zones différenciées par la couleur, par polymérisation en masse avec utilisation de chambres de polymérisation et de moulage, procédé dans lequel on colore de façon homogène le progéniteur utilisé du polymère-matrice MP et on ajoute ensuite une résine acrylique également c...

Composition comprising, per 100 parts by weight of at least one polyolefin: a) from 0.001 to 0.02 parts by weight of iron in the form of at least one ionic salt of iron, b) from 0.001 to 0.1 part by weight of sulphur in the form of sulphur and/or of at least one dialkyl polysulphide, c) from 0.5 to 5 parts by weight of at least one iron oxide, and d) from 1 to 10 parts by weight of at least ...

a) Electromagnetic relay. b) Relay characterised in that the stud 14 is reduced at its end and the portion situated above has a peripheral zone whose diameter D is greater than that of the passage 16 and in that the support member 15 carrying the relay 10 is a printed-circuit board fitted with conductive paths 18, on which board the relay 10 is fixed through its shape, the stud 14 engaging in the ...