A process is disclosed for creating an array of bumps to texture a brittle surface, such as a glass substrate 12 for data recording disks. The texturing process uses a laser 10 to provide pulses of proper energy fluence to the brittle glass surface to produce a plurality of raised bumps in the surface. The bump creation is accomplished without unwanted micro-cracking or ejection of surface materia...

Mixtures of isomeric decyl alcohols are obtained by oligomerisation of propylene in the presence of deactivated zeolites as catalysts, separation of the C9 olefins from the oligomer mixture, hydroformylation of the C9 olefins to give C10 aldehydes and hydrogenation of the C10 aldehydes. The mixtures afford, esterified with phthalic acid, a mixture of isomeric didecyl phthalates, which are used as ...

This invention is directed to a method and system for extracting a solute from a fluid or a dense gas using a porous membrane. The invention includes providing a porous membrane having opposite sides in a module under pressure, with the membrane serving as a barrier interface between a fluid and a dense gas. The dense gas is introduced into the module on one side of the membrane and the fluid is i...

The sliding belt (6) engaging in the rotary body (1,2) for transmission of forces associated with the torque. The tractive belt (4) and the sliding belt work in conjunction with one another with the aid of a bearing system (8). Devices are provided for limitation or prevention of the longitudinal movement of the sliding belt. The bearing system incorporates a pump for feed of lubricant between the...

The present invention relates to a method of preparing a polyester comprising polymerizing at least one beta -substituted- beta -propiolactone in the presence of an initiating amount of alkylzinc alkoxide in bulk or in solvent for a reaction time and temperature sufficient to produce said polyester.

This invention relates to liquid crystalline polymers (LCPs) derived from (I) hydroquinone and/or 4,4'-biphenol and/or bis(4-hydroxylphenyl) ether, (II) terephthalic acid, (lII) 2,6-naphthalene dicarboxylic acid and/or 4,4'-bibenzoic acid, (IV) 4-hydroxybenzoic acid, (V) 6-hydroxy-2-naphthoic acid, and optionally (VI) an aliphatic diol in specified ratios. In addition to forming exceptionally toug...

A method and device for recording signals on a record carrier with the aid of a radiation beam (15). The signals are recorded in the form of optically detectable marks in parallel tracks which have a substantially constant track pitch. The recording intensity of the radiation beam is set in such a way that with a "minimum" recording intensity information patterns are recorded with a low desired er...

A composite panel may be deep drawn into sanitary inserts (bath tubs, shower tubs, sinks, lavabos). A coating (3) of polymethyl metacrylate (PMMA, acrylic glass) is arranged on a substrate made in particular of acrylonitrile-butadiene-styrene (ABS). The acrylic glass coating consists of a mixture of impact-resistant modified PMMA and standard PMMA.

L'invention propose un procédé de fabrication d'un profilé, réalisé en caoutchouc ou en élastomère, vulcanisé et comportant une couche superficielle, destinée à réduire le coefficient de frottement entre le profilé et une surface vitrée, dont la formation est obtenue par immersion ou pulvérisation dans une solution dans laquelle est dispersée une poudre, notamment de graphite, caractérisé en ce...

L'invention propose une solution pour réaliser un revêtement sur un profilé, en caoutchouc ou en élastomère, du type comportant une poudre, notamment de graphite, dispersée dans une résine, caractérisée en ce qu'elle comporte un agent imperméabilisant.

Long life packaging container for a fruit and/or vegetable based beverage, made from a single layer of a methyl acrylate / acrylonitrile / butadiene terpolymer.

In treatment of waste waters, during periods of normal flow the waste water (11) is fed into a de-sanding vessel (2) where sand is allowed to settle out and is collected (22) and separated from the water stream (3), which is given further treatment. During periods of heavy flow the waste water stream is mixed with a coagulant agent (80) in a turbulent zone. It is then dosed with a coagulant agent ...

Organopolysiloxane compsn. comprises at least one poly-acryloxy-organopolysiloxane obtd. by functionalisation by a poly-acyloxy-siloxane, at least one reactive oil which is a hydroxylated polysiloxane for reacting in the presence of water to form the elastomer with the formation of acid of formula R'COOH in which R' = 1-15C hydrocarbon radical except unsaturated aliphatic, a phosphorus agent and o...

The support module is of cylindrical shape and has two circular ends (1,1') separated by two longitudinal removable half shell covers (3,3'). Each end part (1,1') has on its principal faces (4a) a longitudinal rib (5,5') perpendicular to the face, onto which the ends of the electronic circuit boards (15,15') are fixed. The half shell covers (3,3') include, on each of their longitudinal sides, a sc...

A composite molding comprising a silicone gel molding and a peelable film is decribed herein. This composite does not suffer from the problems of adhesion of dirt and dust, agglomeration to each other, or deformation of moldings. It also has improved handling characteristics. A method for manufacturing such a composite molding is also claimed.

The invention relates to a lubricating grease composition and to an advantageous use of such a lubricating grease composition. The lubricating grease according to the invention comprises at least one polyolefin component, at least one base or component and, in addition, at least one rubber component. The properties of the lubricating grease composition according to the invention, for example with ...

An electrically propelled vehicle such as a wheelchair including a frame; a drive assembly including an electric motor and at least one ground engaging wheel; interengaging formations associated with the drive assembly and frame and providing a releasable connection therebetween; and catch means for holding said formations in engagement with one another, there being releasable electrical connector...

A concrete product which uses 100% of the melt slugs and pulverizes the melt slugs into aggregates and fine powders, grinds the aggregates so that the percentage of absolute volume of the aggregates is over 60%, mixes the aggregates, fine powders, water and cement, and forms the mixture into the concrete product by vibration or press molding.

The razor has a grille (13) with slots (14) which allow hair to enter for cutting by translating or rotating cutters. The degree of skin protuberance through the slots may be continuously detected by treating it as a light barrier to light moving over the grille surface. Light from an electroluminescent diode (22) travels through fibre optics (21a) to the edge of a slot which it crosses to enter ...

The razor has a body (5) and a head (7) with slotted shaving grilles (13). The head is supported on springs and moves relative to the body according to the friction encountered. This movement is detected by an electro-optical system (20). Light is transmitted along a fibre optics (21) to a target (35) on the head. Reflected light returns along the same path and if this shows that target movement a...