A process is disclosed for preparing a nonwoven web comprising melt-blowing a composition comprising a block copolymer, the block copolymer comprising: (a) recurring units formed from an amine-ended polyethylene oxide; and (b) recurring units formed from a polyamide.

MATALLIZED POLYPROPYLENE FILM AND PROCESS FOR MANUFACTURE This invention relates to a metallized polypropylene film made from polypropylene/acid terpolymer blends and the process for the manufacture thereof. The acid terpolymer is composed of an ester monomer, an acid monomer and ethylene.

Method and apparatus for control of a process for processing goods (2) with liquids (3). The transport of liquid to and from the goods being controlled by the physical state of the process goods, which is sensed by sensors (6). At a predetermined condition of the process goods sensed by the sensors, the transport of liquid is interrupted or changed by the valve means (4) and by the control unit (8...

Method and apparatus for control of a process for processing goods (2) with liquids (3). The transport of liquid to and from the goods being controlled by the physical state of the process goods, which is sensed by sensors (6). At a predetermined condition of the process goods sensed by the sensors, the transport of liquid is interrupted or changed by the valve means (4) and by the control unit (8...

The operation of a fluid-bed reactor in which the catalyst has a proclivity to stickiness deleterious to efficiently carrying out a reaction of the gaseous components fed to the reactor, is controlled by monitoring the fluctuations in temperature at various locations in the bed, and computing the standartd deviation of temperature at predetermined intervals of time. When the fluid-bed consists ess...

27841/MAPI-7 FIBRIN/COLLAGEN MEMBRANE MATERIAL FOR BIOMEDICAL USE Gel membranes are provided by gelling fibrinogen with thrombin by itself or in combination with gelation of collagen. After dehydration, the resulting membranes may be used as dressings, temporary skin grafts, or the like. The gels may be used without dehydration for drug delivery or tissue regeneration or growth inhibition. 2019592...

The invention provides reagents and methods for the synthesis of oligonucleotides having single or multiple reporter groups attached for use in detection assays, wherein the reporter groups may be precisely spaced with respect to one another. The invention further provides oligonucleotides having single or multiple reporter groups attached in a manner in which the spacing between the reporter grou...

A net shaped ceramic-reinforced aluminum matrix composite is formed by forming a permeable mass of ceramic material (10) with a defined surface boundary having a barrier, and contacting a molten aluminum-magnesium alloy (20) with the permeable mass of ceramic material (10) in the presence of a gas comprising from about 10 to 100 % nitrogen, by volume, balance nonoxidizing gas, e.g. hydrogen or arg...

This invention solves problems encountered in driving conveyor belts where mating belt drive engagement surfaces, sprocket drive surfaces, pivot rods and pivot rod surfaces all interact to cause wear and unreliability in belt operation. Pivot rods are removably confined to prevent linear movement out of the belt due to conditions encountered in operation with corresponding interference or failure....

13 SPINEL-CARBON REFRACTORY The problems associated with the low thermal shock resistance of conventional refractories utilized in continuous casting operations are overcome by a spinel-carbon refractory which provides improved thermal shock resistance. The spinel-carbon refractory of the present invention includes either a sintered spinel, a fused spinel, or a mixture of sintered and fused spinel...

A catalytic solid based on complexed TiCl3 is obtd. by heating, in presence of a halogenated activator, the liq. resulting from contacting TiCl4, pre-treated with an electrodonor, with a compsn. (C) of formula AlRp(Y)qX3-(p+q), where R = hydrocarbon gp.; Y = OR', SR' or NR'R''; R', R'' = hydrocarbon gp. of H; X = halogen; p, q = 0-3; p+q = 0-3.

Solide catalytique utilisable pour la polymérisation stéréospécifique des alpha-oléfines, procédé pour le préparer et procédé pour polymériser des alpha-oléfines en sa présence Solides catalytiques à base de trichlorure de titane complexé, utilisables pour la polymérisation stéréospécifique des alpha-oléfines obtenus par traitement thermique, en présence d'un agent d'activation halogéné, du matéri...

A waste gas from a chemical process is treated to remove undesirable substances, especially sulphur dioxide, by contacting said waste gas with acidic solution, e.g. industrial waste solution, at pH less than 2 to effect pre-cleaning, and then contacting said waste gas with alkaline solution e.g. seawater.

An apparatus for fractionating a cell suspension, which comprises a casing having a substantially columnar space in the interior, which is substantially closed to the space outside the casing, a liquid-treating chamber in the casing adapted to be filled with a cell suspension passing through this liquid-treating chamber, a separating membrane having a separating wall surface inside the casing and ...

A color sequential illumination system for a liquid crystal light valve is disclosed. The invention operates with no moving parts and provides for the sequential illumination of a light valve with at least two beams of different colors. The rate is fast enough that the colors fuse together and the viewer sees a composite color image. The system includes a prepolarizer and dichroics for providing a...

A first memory stores a divided three-dimensional binary image as image data j of p bits. A second memory, equal to the first memory in size, stores data k of q bits, representing the section number of a corresponding memory section of the first memory. A histogram computing circuit concatenates data j and data k and obtains a histogram for the concatenated data. A computing unit computes a margin...