An article for forming a cable block or for enclosing a cable splice comprises a heat-recoverable driver sleeve 1 and a particulate heat- activatable adhesive 3, e.g. a hot-melt adhesive, temporarily restrained adjacent an inner surface of the sleeve, e.g. by a substantially non-cross-linked polyolefin net or mesh 2 which may be bonded to the sleeve 1 around its edges. The sleeve 1 may be coated o...

A spread foam is made by the no-gel method. In the process, a conventional no-gel foam latex composition, comprising the latex of an elastomeric polymer, is frothed and a thickener latex is added and mixed with the latex composition at the time of frothing; the thickened composition is then spread, for example, on a textile substrate, carpet back or as an unsupported foam, dried and, if desired, c...

To control transmission ratio of a continuously variable transmission connected to a combustion engine (e.g., for optimal fuel efficiency of a powered vehicle), effective diameter of pulleys is controlled in response to an electrical signal. A control signal suitable for comparison with hydrostatic pressure values is produced by a computing device based on input signals representing load, speed, a...

A crosslinked foam having an expansion ratio of 25 to 60 which comprises a composition containing 100 parts by weight of a resin component consisting of an ethylenevinyl acetate copolymer or a mixture thereof with a thermoplastic resin and 50 to 500 parts by weight of an inorganic powder material.

An improved foamable dielectric composition comprising a melt extrudable perfluorocarbon resin containing therein (i) a polytetrafluoroethylene (PTFE) nucleating agent and (ii) a volatile blowing agent, preferably a lower fluorocarbon blowing agent having only one or two carbon atoms; a process for forming such a composition; and, products produced therewith. More specifically, a foamed melt extru...

The invention comprises a hollow body, suitable for receiving diffusible substances and made of plastics material coated with varnish resins, the external surface of which has a roughness, measured in profile according to DIN 4768, Part I, of Rz=from 2 to 150 mu m and Rmax=from 5 to 250 mu m on which a coating, positively linked with that surface to provide a seal against diffusion of liquids an...

The closed cell content of a phenolic is significantly increased by the incorporation therein of a finely divided hydrated alumina.

The invention relates to a method of increasing the fire resistance of moulded foam cushioning, for example, latex foam rubber or polyurethane moulded foam. The invention comprises enclosing the cushioning with a thin layer of a filled non-gel rubber latex foam prepared from natural rubber latex, a synthetic rubber latex not containing halogen in the polymer chain or a blend of two or more of such...

A process is provided for producing a silica-synthetic polymer mixture by mixing silica, water and an alkyl trimethylammonium halide, adding this mixture to a latex of the synthetic polymer, coagulating the mixture and recovering the silica-polymer mixture. Such mixtures may be used for the production of rubbery vulcanizates such as shoe soles, light colored shaped articles and the like.

A method of facilitating the incorporation of hydroxypropyl methyl cellulose (HPMC) into a liquid formulation containing water which comprises forming a liquid premix of hydroxypropyl methyl cellulose dispersed in an aqueous-free organic liquid medium in which it does not swell or dissolve, selected from the group consisting of liquified nonionic surfactants, fatty acids, anionic surfactants and m...

A boring-injection device comprises a fluid supplying hollow rod, a fluid discharge portion at the lower end of the rod, and a packer element inflatable from the rod to seal a space between the rod and a borehole wall at a desired depth position. The rod is surrounded by a sheath so that the packer element and fluid discharge portion can be protruded out of and retracted within the sheath in a bod...

In a system for recovering data, both prerecorded (e.g. servo track) and user data, from a reflective optical data storage medium, with the further capability of distinguishing data from foreign particulate matter on a data disk 65, a pair of detectors 71, 77 measures the fraction of light 73 (e.g. infrared laser light) reflected from and the fraction of light 75 transmitted through the data disk ...

An infra-red transmission system in which messages in the form of pulse coded data signals are transmitted between transmitting-receiving units (6) each being provided with at least one or a plurality of infra-red light emitting elements and one or a plurality of infra-red light sensitive photo-element, in a house having such a formed, common outlet and inlet opening for the infra-red light, that ...

Low density, closed cell, soft foam products having dimensional stability are made from ethylenic resin blends having low stiffness by extrusion foaming, wherein the heat plastified gel comprises the ethylene polymer blend and at least one volatile blowing agent. The blends especially comprise a copolymer of ethylene and monoethylenically unsaturated carboxylic acid and a copolymer of ethylene and...

Disclosed is a composition for the improvement of the adhesion and adhesion retention between conventional rubber skim stock compositions, utilized in the manufacture of tires, conveyor belts, hoses and the like, and metallic reinforcement cords such as brassed steel. The invention composition is prepared by mixing an inorganic salt of cobalt or nickel and depolymerized scrap rubber (DSR) with the...

A film of a fluorocarbon copolymer of ethylene, and tetrafluoroethylene or chlorotrifluoroethylene, which upon heat shrinking in the longitudinal direction, does not expand in the transverse direction.

A membrane module is disclosed which comprises at least one elongated, planar membrane element which is composed of two membranes aligned opposite one another so as to define a closed cavity into which active surfaces of both membranes face. At both ends of the membrane element, separate conduits attached to the two membranes are in communication with the cavity, such that the feed flow from one c...

Ces particules pour la production d'articles moulés, en mousse rendus ignifuges, contiennent un agent gonflant, une petite quantité de bis de tétrabromobisphénol A et une petite quantité de pentabromomonochlorocylcohexane.; An expandable polymeric styrene particle is provided from which molded foamed articles can be produced exhibiting reduced flammability characteristics. The expandable polymeric...

Les particules expansibles de polymères styrénique contenant un agent gonflant contiennent aussi de petites quantités d'éthylène-bis-stéaramide et dibromoéthyldibromo-cyclohexane. Elles permettent de réduire le cycle de refroidissement du moule final utilisé pour la production d'articles en mousse.; An improved expandable polymeric styrene particle is provided containing a blowing agent and a mino...

PURPOSE:To increase the density of a semiconductor device by making at least one end of a low density layer of high specific resistance direct contact with a polycrystalline silicon layer diffused with impurity in high density connected to a diffused layer formed already with a driving transistor. CONSTITUTION:Source and drain diffused regions 22 and 23 extended from a main surface of a semiconduc...