Nippon Mektron Limited

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The Central Synthetic Rubbers Research Institute

Sergei Vasil'evich Sokolov

Haruyoshi Tatsu

Satoru Saito

Sergei Rafailovich Sterlin

Olga Viktorinovna Blagodatova

Yurii Vilovich Zeifman

Sergei Anatol'evich Postovoi

Alexandre N Kollar

Jenq-Tain Lin

Lin-chiu Chiang

Lev Moiseevich Kogan

Vladislav D Chekmasov

Anatoli Stepanovich Skornyakov

Vladimir P Znamensky

Tat'yana Borisovna Zapevalova

An adhesive composition comprising a fluorinated elastomer having dicyclopropane rings formed by reaction of chloroform with unsaturated bonds introduced into the molecule of fluorinated elastomer by an alkali treatment, as an adhesive component has a good room temperature adhesiveness and very distinguished electric characteristics perse such as a high insulation resistance, a low dielectric constant, a low dielectric loss tangent, etc. and is effectively applied to adhesion of electronic materials in printed substrates, etc.

Adhesive composition

A fluorine-containing elastomer composition comprising a fluorine-containing elastomer having a cyano group as a cross-linkable group and a bisamidrazone compound represented by the following general formula as a vulcanizing agent: ##STR1## wherein Rf is one of the following groups:

Fluorine-containing elastomer composition

A method and apparatus for producing a thrust force from an annular axial stream of gaseous products fed to a nozzle with a supercritical pressure drop and acceleration to subsonic speed. In the nozzle, the direction of the subsonic annular stream is changed from axial to radial and the radial stream is divided into a plurality of opposing jets which collide in a braking zone and change direction back to axial for discharge into the ambient atmosphere. A change in thrust intensity (modulus) is effected by changing the flow rate of the radial jets and/or the flow rate of the axial stream discharged into the ambient atmosphere. Adjustment of the angle of the thrust vector is effected by changing the angle of discharge of the axial stream into the ambient atmosphere. The nozzle comprises a housing, a central body with a flat base in the housing, and a casing surrounding the central body and having an end face with profiled outlet edges forming together with the flat base of the central body a radial channel with a critical cross section and an axial outlet. The casing is axially adjustable and the central body is angularly movable to adjust the flat base from a position perpendicular to the longitudinal axis of the nozzle to an angular position relative thereto.

Method and nozzle for producing thrust

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Saint Petersburg, Russia

Sergei Vasil'evich Sokolov