The present disclosure is concerned with a method of forming a seal with a polyethylene based film structure. The polyethylene based film structure has at least one layer formed with an oriented polyethylene having a predetermined melting temperature (T.sub.m). A conductive heat sealing device provides heat to form the seal, where a first sealing bar of the conductive heat sealing device operates at a first operating temperature of at least 10 degrees Celsius (° C.) below the T.sub.m of the oriented polyethylene in the polyethylene based film structure and a second sealing bar of the conductive heat sealing device operates at a second operating temperature of at least 15° C. higher than the operating temperature of the first sealing bar. The seal formed with the polyethylene based film structure retains at least 99 percent of its original surface area prior to forming the seal.

A polymer film assembly includes a stack of two or more polymer films. At least one of the polymer films includes directionally oriented molecules. The stack includes a first polymer film and a second polymer film layered with the first polymer film. A contracted bond assembly couples the first and second polymer films of the stack. The contracted bond assembly includes heated and contracted configurations. In the heated configuration the contracted bond assembly includes a bond fusion zone and a film interface having directionally disoriented molecules and an interface width between the bond fusion zone and the remainder of the first and second polymer films. In the contracted configuration the film interface is a contracted film interface having a contracted interface width less than the interface width and a contracted thickness greater than one or more of film thicknesses of the first or second polymer films.

The present disclosure provides a port. In an embodiment, a port is provided and includes (i) an optional top portion, (ii) a base, and a channel extending through the optional top portion and the base for passage of a flowable material, and (iii) a septum extending across the channel. The septum comprises an ethylene/-olefin multi-block copolymer.

A bonding method utilizing carbon nanotubes provides first and second objects to be bonded and a carbon nanotube structure. The carbon nanotube structure comprises a super-aligned carbon nanotube film comprising carbon nanotubes, the carbon nanotubes extending substantially along a same direction. The carbon nanotube structure is laid on surface of first object and surface of second object is pressed onto the carbon nanotube structure. Pressure being applied to the first object and the second object bonds the two together.

An extruded strap is produced of a material containing renewable raw materials and the ends of which strap can be welded together. A method for producing the extruded strap and a method for strapping an article using the extruded strap are also provided.

A process for sealing a machine direction oriented polypropylene or polyethylene film to a substrate comprising bringing said film and said substrate into contact and subjecting at least a part of the contact area to ultrasound so as to form a seal between said film and said substrate.

The present disclosure is concerned with a method of forming a seal with a polyethylene based film structure. The polyethylene based film structure has at least one layer formed with an oriented polyethylene having a predetermined melting temperature (T.sub.m). A conductive heat sealing device provides heat to form the seal, where a first sealing bar of the conductive heat sealing device operates at a first operating temperature of at least 10 degrees Celsius (? C.) below the T.sub.m of the oriented polyethylene in the polyethylene based film structure and a second sealing bar of the conductive heat sealing device operates at a second operating temperature of at least 15? C. higher than the operating temperature of the first sealing bar. The seal formed with the polyethylene based film structure retains at least 99 percent of its original surface area prior to forming the seal.

A bonding method utilizing carbon nanotubes provides first and second objects to be bonded and a carbon nanotube structure. The carbon nanotube structure comprises a super-aligned carbon nanotube film comprising carbon nanotubes, the carbon nanotubes extending substantially along a same direction. The carbon nanotube structure is laid on surface of first object and surface of second object is pressed onto the carbon nanotube structure. Pressure being applied to the first object and the second object bonds the two together.

The present invention relates to a method for packaging a compressible product in a compressed state, comprising the step of sealing at least two parts of a polymeric machine direction oriented (MDO) film which encloses at least part of the compressible product in the compressed state, characterized in that the seal has a seal elongation at failure of about 20% to about 100%, as measured in accordance with ASTM F88/F88M-09. The present invention also relates to a compressible product in a compressed state packaged in a polymeric MDO film which encloses at least part of the compressible product, wherein at least two parts of the MDO film are sealed and characterized in that the seal has a seal elongation at failure of about 20% to about 100%, as measured in accordance with ASTM F88/F88M-09.

The present disclosure provides a port. In an embodiment, a port is provided and includes (i) an optional top portion, (ii) a base, and a channel extending through the optional top portion and the base for passage of a flowable material, and (iii) a septum extending across the channel. The septum comprises an ethylene/?-olefin multi-block copolymer.