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Polyvinylidene chloride (PVDC) can be made directly from ethylene and chlorine or by the further chlorination of vinyl chloride with the subsequent removal of hydrogen chloride by alkali treatment. Vinylidene chloride is polymerized in suspension or emulsion processes, using free-radical initiators. Because of its low permeability to water vapor and gases, PVDC is ideal for food packaging. Copolymers of vinylidene chloride and other monomers are also marketed. Products & Services
Laboratory filters are used to remove particulates from samples in laboratory-scale applications. They consist of a filter medium and housing or holder that constrains and supports the filter media in the sample’s path.
Filtration media and elements are designed to remove suspended particles from a process stream. This product area includes bulk filter media, cartridges, housing-only products, and housing and filter assemblies.
Filtration media is material that actively separates solids from a solution and/or binds select materials in a solution.
Liquid filtration elements are used to remove impurities from liquids. They are used in water treatment systems and fluid processing applications.
Gas filtration elements are designed to remove particulates from a gaseous process stream. They are used in natural gas processing systems and gas extraction applications.
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Topics of Interest
The Material Compatibility Guide contains gas-related information about metals, plastics, and elastomers. The following data should serve as a guide in the selection of components for particular gas...
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Two independent high-flow bulk delivery systems were designed and built. These systems were employed to investigate the moisture and the temperature changes and to test the efficiency of the...
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Cartridge-style respirators are widely used to protect workers from exposure to potentially harmful gases and vapors in the workplace. Several types of cartridges are available, including units...
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The Plant Manager at Ulrich Chemical Inc. was experiencing corrosion, plugging and subsequent dust collection problems with their existing dry dust collector while packaging hygroscopic and corrosive...
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Abstract: this article briefs on testing principle of water vapor permeability testing of electrolytic analysis method and its application in the testing of medicine package materials.
Moisture is the...
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