PURPOSE:To obtain the titled foam having excellent physical properties and suitable as a sealing material and sound-proofing vibration-damping material, by introducing a foaming raw material for polyurethane foam into a stirring and mixing chamber of a foaming machine, supplying molten hot asphalt thereto and foaming the mixture. CONSTITUTION:A foaming raw material containing (A) a polyoxyalkylene...

In a heat sealable coating composition for application to a polymer film wherein the composition contains (a) a film-forming aqueous latex based on an interpolymer or blend one or more acrylate esters and, optionally, one or more alpha, beta ethylenically unsaturated carboxylic acids, (b) inorganic particulate hot slip agent and (c) wax-containing cold slip agent, the improvement wherein the avera...

PURPOSE:Polyphosphazene moldings, having excellent surface properties without impairing original characteristics and obtainable by treating polyphosphazene moldings with a specific compound in order to substitute side chains of polyphosphazene in the surface layer part thereof. CONSTITUTION:(A) Polyphosphazene moldings having 50,000 or more (especially 100,000 or more) weight-average molecular wei...

PURPOSE:To accomplish the titled curing using no curing catalyst, by heating under pressure, a composition comprising an alkenyl group-contg. organo polysiloxane, organohydrogenpolysiloxane and finely powdered silica. CONSTITUTION:The objective curing can be accomplished by heating under pressure, to >=150 deg.C (pref. to >=180 deg.C), a composition comprising (a) 100pts.wt. of an organopolysiloxa...

A brake actuator has a body (8) containing a pair of brake-applying members (l0, ll) which may be actuated hydraulically to separate the friction elements of a brake into engagement with a rotatable braking surface. The members (l0, ll) are interconnected by a mechanism in the form of a shaft (l2) of which respective end portions (l3, l4) are provided with reversible threaded portions of opposite ...

A spring applied force actuator for a brake comprises an output member 1 movable from a first retracted position to a second, output (brake engaged) position by rotation of a sleeve 17 which is threadedly engaged with the output member a first, compression spring 4 by which can be generated on the output member an output force when the member is in its second position, first power means by which t...

A curing composition for curing a polysulphide polymer, which composition comprises as the curing agent sodium birnessite, Na4Mn14O27.9H2O. A process for the preparation of sodium birnessite comprises the steps of adding an excess in the range of from 25% to 225% of a solution of sodium hydroxide to a solution of manganese (II) chloride or manganese (II) sulphate to form a slurry of manganese (II)...

A coated rubber cord comprising a core member coated with a woven cover material in the texture of which a single or a plurality of rubber strings are mixedly woven.

This device comprises a side wall (1) fixed to one of the elements and provided with a toothed ring (12) which is, at rest, engaged with a toothed ring (14) connected to a cup which is axially movable, under the action of a plate (26) carrying balls (46), along a control rod extending axially through the toothed ring (12) of the side wall. The cup (16) is extended by a gear pinion (18) engaged wit...