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Gregory S. O'Brien, Downingtown US

Gregory S. O'Brien, Downingtown, PA US

Patent application numberDescriptionPublished
20080261050Multilayer Fluoropolymer Films - The invention relates to a multi-layer film having at least one fluoropolymer layer, useful for high-purity contact applications. Preferably the fluoropolymer layer(s) are polyvinylidene fluoride polymers and copolymers.10-23-2008
20090224421PROCESS FOR FORMING MULTI-LAYER MOLDED ARTICLES - The invention relates to a rotomolding process for forming a multi-layer article of two different polymers with different melting points in which an outer layer polymer powder is added to a rotational molder along with an inner layer polymer powder that is separated from the outer layer powder by a release film. The release film has a particular melting point that is greater than that of the outer layer polymer and preferably between the melting points of the inside layer and outside layer polymers. In one embodiment, the release layer forms an enclosure or bag in which the inner layer (higher melting point) powder is enclosed. In another embodiment the release film forms a barrier between an insulated cavity and the mold. The process provides a means for a “one-shot” rotomolding method.09-10-2009
20100003486BREATHABLE, DEET-RESISTANT POLYETHER BLOCK POLYAMIDE - The invention relates to a polyether block amide film, having both resistance to N,N-diethyl-3-methylbenzamide (DEET) insecticide according to MTL-DTL-31011B along with a high level of breathability (>700 g/m01-07-2010
20100004375IMPACT MODIFIED POLYPHENYLENE SULFIDE - The invention relates to a process for improving the impact resistance of polyphenylene sulfide (PPS) using a functional polyolefin and an elastomer, in which the functional polyolefin and elastomer are pre-compounded prior to combination with the PPS. The pre-compounding of the PPS additives prior to addition of the additives to the PPS provides a composition having vastly improved impact and strain at break properties. Especially useful functional polyolefins are LOTADER resins (Arkema Inc.) and especially useful elastomers are PEBAX resins (Arkema Inc.).01-07-2010
20100062201FLUID TRANSFER MULTI-LAYER TUBE BASED ON A POLYAMIDE AND AN ETHYL VINYL ALCOHOL OR POLYVINYL ALCOHOL - The present invention relates to a symmetrical multi-layer tube based on polyamide and ethyl vinyl alcohol (EVOH) or polyvinyl alcohol (PVOH) for transferring fluids. As examples of tubes for transferring fluids, mention may be made of fuel (gasoline, diesel fuel) pipes, in particular for carrying fuel from the tank to the engine of motor vehicles. Other examples of fluid transfer include, but are not limited to, the fluids used in fuel cells, CO03-11-2010
20100062669MULTI-COMPONENT FIBERS CONTAINING HIGH CHAIN-LENGTH POLYAMIDES - This invention relates to multi-component fibers made of at least 40 weight percent, and preferably over 50 weight percent of one or more high chain length polyamides. The fibers have both a high tear strength and good tensile strength. The fibers can be used to produce woven and non-woven articles having excellent toughness.03-11-2010
20100175742PHOTOVOLTAIC MODULES HAVING A POLYVINYLIDENE FLUORIDE BACKSHEET - The invention relates to a photovoltaic module for capturing and using solar radiation having as a backsheet a composition containing polyvinylidene fluoride. The polyvinylidene fluoride backsheet layer is exposed to the environment and provides chemical resistance, low water vapor transmission, electrical insulation, and UV light protection.07-15-2010
20100258162PHOTOVOLTAIC MODULE USING PVDF BASED FLEXIBLE GLAZING FILM - The invention relates to flexible photovoltaic (PV) modules, and in particular to those having a polyvinylidene fluoride (PVDF) glazing layer. The PVDF layer may be a monolayer or a multi-layer structure.10-14-2010
20100326517HIGH EFFICIENCY PHOTOVOLTAIC MODULES - The invention relates to high efficiency solar collection devices having a matte surface, a low refractive index surface, or both, that increases solar radiation transmission into the device. The matte surface is on a thermoplastic and may be provided in many ways, such as by a matting agent, by the use of a matte chill roll, embossing, or other techniques. The matte and/or low refractive index surface may be a coating, film (single or multi-layer) or sheet (single or multi-layer). The invention is especially useful in both rigid and flexible photovoltaic modules.12-30-2010

Patent applications by Gregory S. O'Brien, Downingtown, PA US