Hutchinson

Hutchinson, Sa

Hutchinson and Merip Oil Tools International

Andre Cheymol

Gerard Riess

Gilles Argy

Rene Guy Busnel

Pierre Hoerner

Victor Zarife

Francois C Gueuret

Alain Basse

Leo Orlianges

Hubert Hervet

Christian Bouteiller

Gilbert C Blu

Multilayer elastomer films (multilayer material) comprising at least one continuous layer, carrying an active chemical substance (such as corrosion inhibitors, lubricants or alternatively biocides for medical use), inserted between inert elastomer barrier layers, processes for the preparation and various applications of these films. The said multilayer polymeric material comprises at least one layer A composed of a gel which is reversible or non-reversible, as a function of the temperature, and which carries at least one active chemical substance x, and at least two barrier layers E comprising a synthetic elastomer e, the said layers being held together by a polymeric bonding agent y incorporated in at least one of the said layers A or E and/or by an independent bonding layer Z comprising a polymer z and/or by a chemical or physical treatment of at least one of the said layers A or E.

Multilayer material, process of preparation and applications

Elastomer films in which active chemical substances, such as corrosion inhibitors, lubricants or biocides for medical use are uniformly dispersed in the form of gel inclusions, processes for preparation and applications of these films. The elastomer film contains at least one active chemical substance in the form of a phase which is dispersed in the elastomer, wherein the disperse phase is in the form of a gel, reversible or irreversible, as a function of temperature, and filled with an active chemical substance.

Elastomer films containing at least one active chemical substance,

Elastomer film, process for its preparation and its applications

A process and device for revealing impact(s) received by a substrate make use of a film capable of being deposited onto said substrate and consisting of a matrix in which are embedded microcapsules intended to be broken during the impact and thus to release product(s) which they enclose and which is (are) endowed with different photoluminenscence properties according to whether it is (they are) encapsulated or released into the matrix.

Process and device for revealing impact(s) received by a substrate

The present invention relates to a glove, finger stall or the like comprised of a latex or other elastomeric material containing microcapsules. The glove or finger stall is characterized in that the concentration of microcapsules increases progressively from the outer surface, where the concentration equals 0, towards the inner surface of the glove contacting the skin of the user, where the concentration equals 90 to 95% of the microcapsules present.

Gloves, finger stalls and similar protective and operational articles,

The invention provides a method of separating at least two production zones in a well (P) using the following method and apparatus. The method is a method of making a sealing ring (18) in situ in an annular space (5) lying between a well (P) and casing (T) in the well, with the sealing ring being made adjacent to a production zone in the well, and with the method comprising the following stages:

Method of isolating production zones in a well, and apparatus for

An endless power transmission V belt is provided including a longitudinal reinforcement member formed by at least one member resistant to a tensile force such as a cable, made from a material chosen from metal, glass fibers or the like having a high tensile strength, transverse elements made from metal or another material having compression strength and an elastomer mass which integrally assembles the transverse elements together and with the longitudinal reinforcement member. The latter is blocked upright at least one transverse element by a nipping effect between said element or a part thereof and a piece cooperating therewith, such as a bar or the like, which is firmly secured thereto by appropriate means such as spot welding on the contact zones between said element and said piece, exclusively.

Power driving V belt and the method of manufacturing same

A trapezoidal cross section cog belt comprising a rubber body having longitudinally spaced inner cogs, a longitudinally extending tension resisting girdle and transversally extending reinforcement members in said cogs, said members having a bandular open shape adapted to undergo deformation in the longitudinal direction of the belt when the same is in use.

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Dange Saint Romain, France

Andre Cheymol