A method and apparatus are provided for obtaining measurements from a wellbore during tripping operations. A drilling sub is attached to the drillstring adjacent to or as near as possible to the drillbit before commencing normal drilling operations. Prior to commencing tripping operations, a logging tool is engaged within the drilling sub. The engagement of the logging tool within the drilling sub...

PCT No. PCT/AT94/00105 Sec. 371 Date Apr. 19, 1995 Sec. 102(e) Date Apr. 19, 1995 PCT Filed Aug. 2, 1994 PCT Pub. No. WO95/05888 PCT Pub. Date Mar. 2, 1995.A process for the purification of aqueous solutions of amine-oxides, characterized in that said solutions are contacted with an aqueous purification solution of an alkali hydroxide and/or ion pair reagent by means of an anion active membrane. B...

In a tire mold (22) having a pair of mold parts separable about cooperating surfaces (62,64) of the respective mold parts which define a parting line region, each of the mold parts includes a surface defining at least a portion of a cavity for shaping a tire. The tire mold further includes a plurality of pockets (108,122) for defining a respective plurality of circumferentially arranged tread elem...

The present invention discloses a process for the production of cellular polyurethanes by reacting a) at least an organic polyisocyanate and/or a modified organic polyisocyanate, b) at least a relatively high molecular weight compound containing at least two reactive hydrogen atoms, if desired, c) extending agents having a low molecular weight chain and/or crosslinking agents, in presence of, d) b...

The present invention discloses a process for polyurethane plastic wastes glycolytic degradation wherein glycol and polyurethane plastic are treated, together with 2 to 20 times as much as the glycolizate amount, in a mixing and milling pump.; Se describe un procedimiento para la degradacion glicolítica de desechos plásticos de poliuretano en el que se tratan el glicol y el plástico de poliuretano...

This invention includes a process for preparing a solid state polymerized poly(ethylene naphthalate) or PEN polymer comprising: (1) preparing a molten PEN polymer with an intrinsic viscosity of from about 0.25 dl/g to about 0.55 dl/g, (2) dispersing an inert gas into the molten PEN polymer to form a foamed PEN polymer with a void fraction of from about 0.10 to about 0.50, (3) forming the foamed PE...

The present invention discloses a process to produce polyurethane stiff foams comprising reacting: a) organic polyisocyanates, b) relatively high molecular weight compounds, containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extending agents and/or crosslinking agents, in the presence of, d) blowing agents, e) catalysts, and, if desired, f) auxiliaries and ...

Cet agencement de parasol suspend est constitué:
d'au moins une monture repliable comportant une couverture pour un parasol (9),
d'un mât de support (3) disposé à côté de la monture,
tandis que, pour chaque parasol, un tirant principal (5) de la monture, qui est articulé à une branche associée de la monture, est prolongé, en traversant la couverture vers l'extérieur, sous forme d'un...

An adhesion system for a reinforcement material and rubbers or elastomers which combines the adhesion of resorcinol-formaldehyde-latex while overcoming the environmental, safety and stability problems thereof comprises an isocyanate compound and a polyunsaturated polymer with isocyanate-reactive groups wherein the molar ratio of isocyanate groups to isocyanate reactive groups is at least 2.5:1.; S...

The present invention discloses a process for the preparation of free flow powders for moulding comprising polytetrafluoroethylene, when a finely divided powder which is not of free flow from an optionally modified polytetrafluoroethylene is agglomerated in an aqueous media containing a trialkylamine oxide, and agglomerates are dried.; Polvos de flujo libre para moldeo que comprende politetrafluor...

In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat sp...

This present invention discloses a process for the recovery of polycarbonate moulded pieces, characterized in that it is applied over the surface of a moulded body comprising a diphenol-based polycarbendently hydrogen, halogen, preferably chloride or bromine, alkyl with 1 to 8 carbon atoms, cycloalkyl with 5 to 8 carbon atoms, aryl with 6 to 10 carbon atoms, preferably phenylalkyl with 1 to 4 carb...

An organopolysiloxane gum emulsion as afforded by the emulsification of organopolysiloxane gum such as in water. Said organopolysiloxane gum emulsion is useful as a cosmetic base, lustrant, lubricant, antifoam, fiber-treatment agent, paint additive, and so forth. The organopolysiloxane gum emulsion characteristically comprises: (A) 100 weight parts organopolysiloxane gum whose plasticity at 25 deg...

The invention discloses a process to prepare polyols containing isocyanurate groups by reacting PIR with compounds having hydroxyl, short chained, PIR reaction is carried out in the presence of carrying polyols having an OH number of at most 500 mg KOH/g and a molecular mass of at least 450 g/mol. Polyols having isocyanurate groups prepared by this process, can be used to produce PUR and PIR.; Un ...

Disclosed is a blown film or sheet material comprising a broad molecular weight distribution propylene polymer material having a molecular weight distribution Mw/Mn of about 40 to about 60, a melt flow rate of about 0.5 to about 50 dg/min, and xylene insolubles at 25 degree C of greater than or equal to 94 percent. A mixture of the broad molecular weight distribution propylene polymer material and...

A method of producing a porous material having open pores comprises stirring a mixture comprising (i) an epoxy compound having at least one epoxy ring in a molecule, (ii) a hardener capable of reacting with the epoxy compount to harden the epoxy compound, (iii) a filler and (iv) water to form an emulsion slurry having a low viscosity and containing the soluble salts uniformly dispersed therein, ca...

The invention relates to oriented films having the set of following properties: - F5 MD >/= 18 daN/mm<2> - F5 TD >/= 10 daN/mm<2> - EMD >/= 800 daN/mm<2> - ETD >/= 400 daN/mm<2> - EMD + ETD >/= 1200 daN/mm<2> - RMD 105

L'invention concerne un procédé de dépollution de sols et de déchets contenant des oxydes de fer fixant des métaux lourds. Il comprend les étapes de:
- mise en contact, dans un réacteur de solubilisation (1), des déchets et d'une source de carbone assimilable en maintenant des conditions d'anaérobiose pendant le temps nécessaire pour obtenir la solubilisation des oxydes de fer sous l'action...

On peut convertir des émulsions de silicone polymérisée en émulsion anionique, en émulsions cationiques en les traitant d'abord avec un agent tensioactif non ionique ayant un rapport hydro-lipophile supérieure à 9, puis en les traitant ensuite avec des agents tensioactifs cationique de type ammonium quaternaire.

Изобретението се отнася до състави за покритие, по-специално основни покрития, включващи най-малко един полиестер, който съдържа хидроксилна група и има средно тегловно молекулно тегло мw от 40,000 до 200,000 и полидисперсност мw/мn, по-висока от 8.Най-малко 50% спрямо теглото ароматни дикарбоксилови киселини или техни способни да се естерифицират производни се използват за получаването на полиест...