Abstract: An article for use in manufacturing particle cassettes comprising one or more single pieces of membrane having a plurality of gas flow passages bonded thereto. The article allows convenient manufacture of particle cassettes. Two such articles may be employed to provide a finished particle cassette and a production line in which a plurality of gas flow passages are conveyed on a single membrane is disclosed.

Abstract: An article for use in manufacturing particle cassettes comprising one or more single pieces of membrane having a plurality of gas flow passages bonded thereto. The article allows convenient manufacture of particle cassettes. Two such articles may be employed to provide a finished particle cassette and a production line in which a plurality of gas flow passages are conveyed on a single membrane is disclosed.

Abstract: An article for use in manufacturing particle cassettes comprising one or more single pieces of membrane having a plurality of gas flow passages bonded thereto. The article allows convenient manufacture of particle cassettes. Two such articles may be employed to provide a finished particle cassette and a production line in which a plurality of gas flow passages are conveyed on a single membrane is disclosed.

Abstract: An article for use in manufacturing particle cassettes comprising one or more single pieces of membrane having a plurality of gas flow passages bonded thereto. The article allows convenient manufacture of particle cassettes. Two such articles may be employed to provide a finished particle cassette and a production line in which a plurality of gas flow passages are conveyed on a single membrane is disclosed.

Abstract: Low tortuosity porous polymer sheets (25 to 2000 pores per square millimeter) with metal plated in the pores so as to project beyond sheet surfaces provide uniaxial electrical interconnects. A first "flash" layer of metal is electrolessly plated in the pores and the "flash" coating of metal is then removed from the sheet surface to isolate the pores electrically from one another. Further plating is then applied only to the already plated pore surfaces to fill the pores and/or project beyond the sheet surface. Solder may fill the plated pores. Polymer layers may be removed from the sheets to expose the metal in the pores. The articles are useful in making electrical connections to the contact pads of microcircuits during testing and assembly into electronic devices.

Abstract: A dimensionally recoverable article, preferably a heat-recoverable article, for providing an electromagnetic shield as a shielding layer which comprises an electrically conductive fabric. The fabric may be a non-woven fabric formed from electrically conductive fabrics or it may be a fabric that has been coated, for example with a metal, after it has been formed in order to render it electrically conductive.

Abstract: Electrically conductive composite material comprises:(a) an open-celled cellular structure of polymeric material, preferably an open-celled foam, having electrically conductive material on at least its interior surface defining the cells, e.g. deposited metal; and(b) substantially solid, preferably non-conductive, material overlying and/or filling the cellular structure.The solid material (b) is preferably polymeric and may be formed in situ by polymerization of a monomer oligomer or may be introduced e.g. in molten form.The material is useful for electromagnetic shielding, e.g. for cable feedthrough glands or dimensionally recoverable articles.