Colormatrix Holdings, Inc.

The Standard Oil Company

Whatman Gmbh

Ronald James Valus

Mark Rule

James C Davis

Steven Burgess Tattum

Christine Leeming

Andrew Stuart Overend

Adrian John Carmichael

Jonathan N Lipsky

Randall W Nichols

Curtis E Uebele

Reza Eshraghi

Marc W Blackman

Andrew Stuart Ovenrend

Alexander E Velikoff

Alex E Velikoff

A containerincludes a shellmade from a polymer, for example PET, and incorporating a catalyst, for example a palladium catalyst. A closureincorporates a plug which includes a source of hydrogen, for example a hydride. In use, with containerincluding a beverage and closurein position, the headspace in the container will be saturated with water vapor. This vapor contacts the hydride associated with plugand as a result the hydride produces molecular hydrogen which migrates into the polymer matrix of shelland combines with oxygen which may have entered the container through its permeable walls. A reaction between the hydrogen and oxygen takes place, catalyzed by the catalyst, and water is produced. Thus, oxygen which may ingress the container is scavenged and the contents of the container are protected from oxidation.

Scavenging oxygen

A closurefor a container body includes a linerwhich incorporates a hydrogen generating device comprising a hydride which generates hydrogen on contact with moisture. The liner may be an interference fit within the body. The linerand other liners described may include control means for controlling passage of moisture to the hydrogen generating means and/or sealing means for sealing the closure to a container. In use, with the closure secured to a container, water vapor passes into linerand contacts the hydride which generates hydrogen. A reaction between hydrogen and oxygen which has passed into the container takes place, catalysed by a catalyst, and water is produced. Thus, oxygen is scavenged.

A closure () includes a body () with a threaded portion () for engaging the closure with a container. Inwards of portion () is a liner () comprising a hydrogen generating device, wherein the liner includes one layer () which incorporates a hydride dispersed in a polymeric matrix and, on opposite sides of layer () are arranged PET layers (). Layer () acts as a control layer to control the rate of passage of water vapour from the beverage in the container to the hydride containing layer () and thereby control generation of hydrogen by the hydrogen generating device. In use, water vapour passes through layer () and contacts the hydride associated with layer () which results in production of molecular hydrogen which combines with oxygen. Thereafter, a reaction between the hydrogen and oxygen takes place, catalysed by a catalyst associated with the container thereby to scavenge the oxygen.

A container () includes a shell () made from a polymer, for example PET, and incorporating a catalyst, for example a palladium catalyst. A closure () incorporates a plug which includes a source of hydrogen, for example a hydride. In use, with container () including a beverage and closure () in position, the headspace in the container will be saturated with water vapor. This vapor contacts the hydride associated with plug () and as a result the hydride produces molecular hydrogen which migrates into the polymer matrix of shell () and combines with oxygen which may have entered the container through its permeable walls. A reaction between the hydrogen and oxygen takes place, catalyzed by the catalyst, and water is produced. Thus, oxygen which may ingress the container is scavenged and the contents of the container are protected from oxidation.

A closure () for a container incorporates calcium hydride and a matrix material as a hydrogen-generating composition. In use, hydrogen is generated which reacts with oxygen permeating a container associated with the closure and a catalyst associated with the container catalyses reaction of the hydrogen and oxygen to produce water, thereby scavenging the oxygen. The composition of calcium hydride and matrix is also claimed.

The invention relates to a gas dehydration membrane comprising a membrane having pores communicating between a first and an opposing second surface of the membrane and further having an average pore diameter on the first surface of the membrane which is about 10 to 1000 times smaller than that on the opposing second surface of the membrane. The invention further relates to a process for dehydrating a gaseous feedstock comprising passing the gaseous feedstock over a membrane characterized by high surface porosity wherein pore openings on a first surface thereof are at least 10 to 1000 times smaller than pore openings on an opposing surface thereof and wherein from about 2% to about 30% of the pore volume is occupied by a humectant.

Gas dehydration membrane with low oxygen and nitrogen permeability

A sealing member for a multi-well microfiltration plate comprises a flexible sealing material which, in response to the application of differential pressure, will flex or collapse in the direction of the filtration along the contour of each individual well. A process maintains a differential pressure substantially constant over a multi-well microfiltration plate comprising placing said flexible sealing member over that surface of the plate having well openings, stretching the flexible sealing member so as to seal the perimeter of each individual well, creating a differential pressure around said plate covered with said seal and filtering a media from each occupied well at a rate independent of the filtration rate of any other well while maintaining a substantially constant differential pressure around the plate until filtration in the last well containing media is complete.

Thin pliable polymeric film for sealing microplates

Process for sealing microplates utilizing a thin polymeric film

The subject invention relates to a membrane for the selective separation of at least one component of a gaseous feed stream comprising a porous membrane, having pores of from about 10 Angstroms to about 200 Angstroms, the pores containing a facilitator liquid having an affinity for the at least one component to be selectively separated, the membrane being capable of operating at a transmembrane pressure of about 100 psig to about 1000 psig, and the membrane comprising a polymer, a solvent, an alcohol non-solvent, and a viscosity enhancer and pore former.

High pressure facilitated membranes for selective separation and process

The subject invention relates to a process for the selective separation of at least one component of a gaseous feedstream comprising passing the feedstream containing the component through a separation unit, the separation unit containing a porous membrane having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms, and having disposed in the pores of the porous membrane a facilitator liquid comprising a carrier dissolved in a suitable solvent, including:

Separating phenylalanine from its admixture with phenylalanine ethyl ester by preferential permeation through a sulfonated polystyrene cation exchange resin membrane.

Separation of phenylalanine from phenylalanine ethyl ester

The process for copolymerization of styrene and acrylonitrile in the presence of a diolefin elastomer in high conversion to polymers having superior impact resistance and other excellent physical properties by the careful control of the percent unrealized total solids during the early stages of the copolymerization is described.

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Valley View, OH, United States of America

Ronald James Valus