Thermoplastic packaging trays are provided that are filled with a product and wrapped in film, and methods of producing the tray with a peripheral edge region that avoids tearing of the overwrap film. In various embodiments, the tray has a beaded, a flat, or a combined beaded and flat peripheral edge.

High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.

A structure of case body selects a material of PET fibers or PET fibers with PP fibers to prepare a non-woven fabric layer block which is processed by baking and cold molding to form a case body. The case body is formed by combining a left shell and a right shell which are manufactured separately, and then combined into a case body with an accommodation space inside. The left shell is divided into a left top wall, a left sidewall and a left bottom wall which are continuously extended and molded. The right shell is divided into a right top wall, a right sidewall and a right bottom wall which are continuously extended and molded. The left and right top walls and the left and right bottom walls have a weight per unit area of 1200-2000 g/m.sup.2. The left and right sidewalls have a weight per unit area of 600-1200 g/m.sup.2.

A process for making a shrink pouch having strong shrink tension in the pouch transverse direction and minimal or no shrink tension in the pouch longitudinal direction is provided. The process includes the steps of reinflating and cold-stretch orienting a previously collapsed blown film and feeding the cold-stretch oriented blown film in a flattened configuration into a side-fed pouch making machine, whereupon the longitudinal direction of the blown film becomes the transverse direction of the pouches thus formed, and vice versa. A shrink pouch having strong transverse shrink tension and little or no longitudinal shrink tension is also provided.

An apparatus including a plurality of first and second pressing elements arranged in crown symmetrically around an axis of symmetry (B) so that a first end of a first pressing element cooperates in contact with a second end of a second pressing element; wherein the first and second pressing elements are supported slidingly and passing through by, respectively, a first and a second plate coupled and bound to each other, in respective second and first slits angularly spaced apart; the first pressing elements being provided with hammerheads circumferentially wider than the second slits and which cooperate circumferentially without play in contact with each other, and the second pressing elements being provided with engraving heads circumferentially wider than the first slits, which cooperate circumferentially without play in contact with each other.

Thermoplastic packaging trays are provided that are filled with a product and wrapped in film, and methods of producing the tray with a peripheral edge region that avoids tearing of the overwrap film. In various embodiments, the tray has a beaded, a flat, or a combined beaded and flat peripheral edge.

High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.

Thermoplastic packaging trays are provided that are filled with a product and wrapped in film, and methods of producing the tray with a peripheral edge region that avoids tearing of the overwrap film. In various embodiments, the tray has a beaded, a flat, or a combined beaded and flat peripheral edge.

A displacement device for moving a truncated cone at a base of a container from an as-blown position to a displaced position. The base includes a deep base ring between a standing surface and the truncated cone. The displacement device includes a collar sized and shaped to be received within the deep base ring. A plunger includes a head at an end of a shaft extending through the collar. The head is sized and shaped to be received within the receptacle of the collar. The plunger is movable from a retracted position, at which the head is seated within the receptacle, to an extended position at which the head extends out from within the receptacle to allow the head to contact the truncated cone and move the truncated cone from the as-blown position to the displaced position.

An apparatus including a plurality of first and second pressing elements arranged in crown symmetrically around an axis of symmetry (B) so that a first end of a first pressing element cooperates in contact with a second end of a second pressing element; wherein the first and second pressing elements are supported slidingly and passing through by, respectively, a first and a second plate coupled and bound to each other, in respective second and first slits angularly spaced apart; the first pressing elements being provided with hammerheads circumferentially wider than the second slits and which cooperate circumferentially without play in contact with each other, and the second pressing elements being provided with engraving heads circumferentially wider than the first slits, which cooperate circumferentially without play in contact with each other.