Abstract: What is described here is an instrument for severing tissue, comprising an elongate instrument body adapted to be introduced into the human or animal body, an HF electrode array provided on the instrument body, to which an HF current may be applied, and an aspirator or vacuum means. In accordance with the invention the instrument body is provided with an aspirator element at a region coming into contact with the tissue, to which aspirator element a negative pressure is applied by means of the suction means in such a way that tissue is aspirated against the instrument body, and that at least one part of the electrode array is adapted for movement in parallel with the aspirator element such that the tissue aspirated against the instrument body will be removed between the aspirator element and the moved part of the electrode array.

Abstract: Composite polyester films, well adapted as either thick or thin film bases, e.g., for the graphic arts or for packaging, are comprised of a crystalline or semicrystalline polyester film substrate (A), said film substrate (A) having a coating, e.g., a coextrudate, of an oxysulfonylated copolyester adhesion primer on at least one of the face surfaces thereof, and said oxysulfonylated copolyester comprising admixture of (a) a crystalline or semicrystalline polyester, and (b) an oxysulfonylated copolyester wherein the number of oxysulfonylated recurring units, relative to 100 recurring units of like monomer, range from 3 to 20, and the respective amounts of the components (a) and (b) are such that the number of oxysulfonylated recurring units in the mixture relative to the total number of recurring units of like monomer, ranges from 2 to 15%.

Abstract: Composite, typically coextruded polyvinylidene chloride (PVDC)-coated polyester films, well adapted, e.g., as packaging materials, include a sulfonated copolyester interlayer which serves as a primer for improvedly adhering the PVDC topcoat to the polyester base.

Abstract: Thick, composite polyester films, well adapted as base films, e.g., for the graphic arts, are comprised of a crystalline or semicrystalline polyester film substrate (A) having a thickness of at least 40 micrometers, said film substrate (A) having a coating, e.g., a coextrudate, of a sulfonated copolyester adhesion primer on at least one of the face surfaces thereof, and said sulfonated copolyester comprising at least 80 mol % of terephthalate recurring units and from 3 to 10 mol % of oxysulfonylate recurring units.

Abstract: Oriented polyester film composites comprise, on at least one face surface of the polyester base, a primer coating adapted to enhance the adhesion of topcoats thereto, said adhesive primer coating comprising a modified copolymer produced by aqueous phase radical polymerization of at least one acrylic monomer in the presence of a water-soluble or water-dispersible copolyester containing a plurality of sulfonyloxy groups.

Abstract: Oriented composite polyester films, to which a wide variety of final application topcoatings are improvedly adherent, e.g., matte, photosensitive and magnetic topcoatings, comprise an oriented base film substrate (A) of a crystalline or semicrystalline polyester, the base film substrate (A) bearing an adhesion primer coating (B) on at least one of the face surfaces thereof, and the adhesion primer coating (B) comprising:(a) a crystalline, semicrystalline or crystallizable polyester;(b) a water-sensitive copolyster; and(c) an organic solvent-sensitive polyester or copolyester.

Abstract: Composite, typically coextruded polyvinylidene chloride (PVDC)-coated polyester films, well adapted, e.g., as packaging materials, include a sulfonated copolyester interlayer which serves as a primer for improvedly adhering the PVDC topcoat to the polyester base.

Abstract: Support with meshes, or elastic flexible openwork grid, used for producing pile textile articles by inserting pile textile elements into its meshes, in which the grid possesses an extensibility of at least 40%, a permanent deformation of less than 5% and an immediate deformation of less than 10%.Pile textile articles are produced by inserting pile textile elements into the meshes of a flexible grid, in which articles a flexible planar element, which can easily be perforated and comprises a design, is associated with the grid. The pile textile elements are inserted over at least part of the surface of the design. The articles have decorative value as wall or floor coverings, wall hangings or similar decorative articles.A tool for introducing pile textile elements into a flexible meshed grid is a hollow conical member which is optionally open along at least one generatrix.

Abstract: Support with meshes, or elastic flexible openwork grid, used for producing pile textile articles by inserting pile textile elements into its meshes, in which the grid possesses an extensibility of at least 40%, a permanent deformation of less than 5% and an immediate deformation of less than 10%.Pile textile articles are produced by inserting pile textile elements into the meshes of a flexible grid, in which articles a flexible planar element, which can easily be perforated and comprises a design, is associated with the grid. The pile textile elements are inserted over at least part of the surface of the design. The articles have decorative value as wall or floor coverings, wall hangings or similar decorative articles.A tool for introducing pile textile elements into a flexible meshed grid is a hollow conical member which is optionally open along at least one generatrix.

Abstract: A decorative textile element consisting of an assembly of parallel textile yarns arranged in bundles and held together at both ends of the bundle. This may be made by assembling at least filiform textile structures in parallel, surrounding the assembly with an envelope, and cutting the resulting product into elements, e.g. using a heated knife.The elements may be made up into decorative textile articles by threading at least one of the above elements onto a yarn.

Abstract: Cross-linked resins of good thermal stability useful inter alia for making multicellular materials, for bonding metals, and for making laminates and moulded articles are made by reacting, e.g. by heating together, an unsaturated bis-imide with a diprimary diamine in a ratio of 1.2:1 to 50:1.