A decorated strip of coated, heat-shrinkable, plastic sheet material is placed on a mold comprising a cylindrical mold body, and attachment means, preferably in the form of two parallel pins extending toward the cylindrical mold body from a pin-supporting wall, and with their ends remote from the wall spaced a short distance from the cylindrical mold body. Holes adjacent the ends of the strip are engaged with the pins. Upon heating in an oven, the strip shrinks, forming a resiliently expansible finger ring, which can be removed from the mold by disengagement from the pins.

An object of the present invention is to provide a heat shrink tube excellent in peelability and transparency, and a method for producing the heat shrink tube. The present invention provides a peelable heat shrink tube comprising a composition containing a melt-processable fluororesin and PTFE, the PTFE lacking a heat history of its melting point or higher after polymerization and having a specific gravity, as measured according to ASTM D4894, of 2.20 or less. The content of the PTFE is 0.05 to 3.0 wt % based on the total weight of the melt-processable fluororesin and the PTFE. The present invention also provides a method for producing the tube which comprises melt-extruding the composition at a temperature lower than the melting point of the PTFE.

The present invention relates to a biaxially oriented polyolefin multilayer heat shrinkable film, which is a multilayer heat shrinkable film with at least three laminated layers, and has internal and external surface layers of a resin composition comprising 70-80 wt % of an ethylene-norbornene copolymer having a glass-transition temperature (Tg) of 138 C. and a norbornene content of 76 wt %, and 20-30 wt % of an ethylene-propylene random copolymer having a melting point (Tm) of 140 C.; and a core layer comprising 54 wt % of an ethylene-propylene random copolymer having Tm of 140 C., 8 wt % of an ethylene-butylene random copolymer having Tm of 66 C., 20 wt % of an ethylene-norbornene copolymer having Tg of 78 C. and norbornene content of 65 wt %, and 18 wt % of a hydrogenated petroleum resin having softening point (Ts) of 140 C. The present invention provides a polyolefin heat shrinkable film and a method for preparing the same, the film has good temperature resistance, high transversal heat shrinkage rate, solves the problem that labels among bottles are easy to adhere between each other during hot filling drink or the problem about adhesion between labels and PE heat-shrinkable film in bundle-shrink pack of a group of bottles using the PE heat-shrinkable film, and is suitably used as label substrate material for contoured bottles.

A decorated strip of coated, heat-shrinkable, plastic sheet material is placed in a spiral slot formed in a silicone rubber mold. The spiral slot is defined by a spiral wall having a uniform wall thickness. Upon heating in an oven, the material shrinks, forming a resiliently expansible arc-shaped band that can be worn as a bracelet or wristband.

A heat-shrinkable label film includes a foamed layer having polystyrene as a principal component, and a pair of non-foamed layers adhesively melted to either side of the foamed layer, wherein the foamed layer and the pair of the non-foamed layers are coextruded to provide a low specific gravity less than 1.0. The film is prepared by coextruding to form the several layers completing a non-drawn film; and drawing the non-drawn film in a transverse direction (TD) at a drawing ratio of 3.5 to 5.5. The foamed ratio of the foamed layer is in the range of 5 to 20%. The thickness of the foamed layer is 60 to 90% of the total thickness of the film; and the thickness of each non-foamed layer is 5 to 20% of the total thickness of the film. The heat-shrinkable label film has a thickness of 30 to 60 m.

The invention provides a heat-shrinkable polyester-based film comprising ethylene terephthalate units, constituent units derived from at least one monomer which forms an amorphous component, and constituent units derived from butanediol. The amount of the constituent units derived from at least one monomer which forms an amorphous component is 18 mol % or more, and the amount of the constituent units derived from butanediol is 1 to 25 mol % based on 100 mol % of all polyester resin components. The heat-shrinkable polyester-based film is characterized by particular values for the secondary shrinkage ratio of the film, the hot-water heat shrinkage ratio of the film, and the reversing heat capacity difference before and after the glass transition temperature of the film.

A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can be pre-formed by a stretch blow molding process then advanced over the cannula. The sleeve includes an inflatable balloon and an annular ring distal the inflatable balloon. The cannula includes an annular recess. The annular ring is sized to have an interference fit with the annular recess.

What is provided is a heat-shrinkable film and a heat-shrinkable label that, when applied to a container in which the difference between the diameter of the body portion and the diameter of the mouth portion is large, sufficiently shrink in the mouth portion and do not easily allow the generation of a wrinkle or a sink mark in the mouth portion. The heat-shrinkable film contains polyester, a dicarboxylic acid component that constitutes the polyester contains 95 mol % or more of terephthalic acid, and a diol component that constitutes the polyester contains 50 mol % or more of ethylene glycol and 15 mol % or more of cyclohexanedimethanol. The shrinkage rate in the primary shrinkage direction when the heat-shrinkable film is immersed in hot water at 70 C. for 30 seconds is 20% or less, the shrinkage rate in the primary shrinkage direction when the heat-shrinkable film is immersed in hot water at 80 C. for 30 seconds is 45% to 65%, and the shrinkage rate in the primary shrinkage direction when the heat-shrinkable film is immersed in hot water at 98 C. for 30 seconds is 65% or more.

A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can be pre-formed by a stretch blow molding process then advanced over the cannula. The sleeve includes an inflatable balloon and an annular ring distal the inflatable balloon. The cannula includes an annular recess. The annular ring is sized to have an interference fit with the annular recess.

An electrical insulator apparatus and method of manufacturing an electrical insulator apparatus includes a core strength member which is positioned at least partially within at least one end-fitting. A thermoplastic exterior body having a plurality of spaced fins is injection-molded over the core strength member and at least partially over the at least one end-fitting. The core strength member is attached to the at least one end-fitting without a mechanical compression to the at least one end-fitting and without an adhesive between the core strength member and the at least one end-fitting. One or more mechanical upset structures formed on the at least one end-fitting prevent movements of the injection molded thermoplastic exterior body relative to the at least one end-fitting.