PURPOSE:To be able to fully recover a capacity by constant voltage charge in a short time by increasing the mole number of lead sulfate in a negative electrode plate 15% or more higher than the total mole numbers of a negative electrode active substance and increasing the mole number of lead sulfate in a positive electrode plate 12% or more higher than the total mole numbers of a positive electrod...

PURPOSE:To obtain a battery of which the capacity can be well recovered by a constant voltage charge even after the battery is left for a long time in a high temperature environment by sucking a definite volume of oxygen gas through a small tube stuck into a safety valve which consists of an elastic material. CONSTITUTION:By the sticking of a small tube like a needle of a syringe into a safety val...

Folding chair of the type in which the seat part 1 and the backrest 2 consist of a rigid tubular frame 3, 6, on which a cloth 5, 7 is stretched, and in which the rigid frame 6 of the seat part 1 can pivot on the rigid frame 3 of the backrest 2, characterised : - in that the pivoting tubular frame 6 of the seat part 1 is in the shape of a U, the arms of which are directed forwards and the connect...

The subject of the invention are planar, fibre-containing polyurethane composites having a thickness of 1 to 20 mm and a density of 0.1 to 1.6 g/cm<3>, having defined mechanical properties and consisting of a cellular polyurethane thermoset material, which contains 51 to 80% by weight, based on the total weight, of a fibre-containing planar structure embedded in it, and a process for the manufactu...

A method of producing a porous material having open pores comprises the steps of preparing an emulsion slurry by vigorously agitating a mixture comprising (i) a glycidyl type epoxy resin, (ii) a first hardener selected from the group consisting of modified polyamine hardeners each being prepared by modifying a polyamine hardener with a modifier, amine hardeners and mixtures thereof, (iii) a second...

A method of producing a porous material having open pores comprises the steps of preparing an emulsion slurry by vigorously agitating a mixture comprising (i) a glycidyl type epoxy resin, (ii) a first hardener selected from the group consisting of modified polyamine hardeners each being prepared by modifying a polyamine hardener with a modifier, amine hardeners and mixtures thereof, (iii) a second...

The polymerization of compositions containing styrene by an aqueous suspension process in which is used a suspending agents system constituted by a mineral agent and, an extending agent which is at least a rosin acid derivative (abietic acid, neoabietic acid, dextropimaric acid) or their salts of a metal belonging to Group IIa of the Periodic Classification of elements. The use of this extending a...

Dispositif de transmission de la puissance pour un véhicule à quatre roues motrices utilisant un freinage dynamique d'un moteur électrique.
Il comporte un mécanisme principal de transmission 41 vers des roues motrices principales 44, un mécanisme auxiliaire de transmission comprenant un arbre 42 vers des roues motrices auxiliaires 47, un moteur électrique 1 disposé dans le mécanisme auxil...

Procédé de préparation d'homo- et copolymères du chlorure de vinyle sous forme de poudre apte à donner des plastisols.
On réalise une opération de séchage par atomisation sur un latex d'homo- ou copolymère du chlorure de vinyle. On opère de manière que la température de mise en îoeuvre dudit latex à soumettre à l'opération de séchage par atomisation soit au moins égale à 40 degrés C et in...

Procédé de préparation d'une matière poreuse à pores ouverts.
On prépare une dispersion par agitation vigoureuse d'un mélange comprenant i une résine époxydique de type glycidylique, ii un premier durcisseur choisi dans le groupe consistant en les durcisseurs du type polyamine modifiée obtenus par action d'un agent modifiant sur un durcisseur du type polyamine, les durcisseurs du type ami...

The invention relates to a method for measuring the specific yield, in a well, as a function of time, of the various layers of an underground formation having several layers producing hydrocarbons. This method consists in lowering a flow meter 13 into the well, in passing it successively, in a repeated fashion, in front of each of the layers 1 to 5 of the formation and in noting the yield values w...

Process in which the fibres are impregnated with a polyamide before a pultrusion, characterised in that the fibres impregnated with a polyamide oligomer or prepolymer are treated while heated to cause the elongation of the polymer chain before the calibration by pultrusion.

The polymerization of compositions containing styrene by an aqueous suspension process in which is used a suspending agents system constituted by a mineral agent and, an extending agent which is at least a rosin acid derivative (abietic acid, neoabietic acid, dextropimaric acid) or their salts of a metal belonging to Group IIa of the Periodic Classification of elements. The use of this extending a...

The polymerization of compositions containing styrene by an aqueous suspension process in which is used a suspending agents system constituted by a mineral agent and, an extending agent which is at least a rosin acid derivative (abietic acid, neoabietic acid, dextropimaric acid) or their salts of a metal belonging to Group IIa of the Periodic Classification of elements. The use of this extending a...

Process in which the fibres are impregnated with a polyamide before a pultrusion, characterised in that the fibres impregnated with a polyamide oligomer or prepolymer are treated while heated to cause the elongation of the polymer chain before the calibration by pultrusion.

Mécanisme différentiel du type à répartition de couple et pignons hélicoïdaux ayant un couple biais inhérent de frottement comprenant un carter composé d'une pièce de bâti 102a ayant une chambre centrale et une pluralité de paires de cavités de pignon 108-110 s'étendant longitudinalement le long d'une circonférence autour de la chambre, ai une pièce de couvercle 102b connectée à ladite pièce de...

PURPOSE:To effectively obtain an answer to a question by estimating the purpose of the question even though the input question contents have omissions or conflicts. CONSTITUTION:The contents of each component are obtained for a selectively input question out of plural candidates of item contents which are shown at every question component item. Then the conflicts are checked among those contents e...