Breathable, thermoplastic films, laminates, and methods of making films having a basis weight less than or equal to 15 gsm and a water vapor transmission rate of at least about 500 grams H.sub.2O/24-hour/m.sup.2, wherein the film has a ratio of the MD load at break to the CD load at break of less than about 10, and at least one of a machine-direction notched Elmendorf tear strength of at least about 5 g or a machine-direction notched trapezoidal tear strength of at least about 15 g.

The present invention is directed to an apparatus for forming a multi-layer web formed from at least two polymeric film tubes in intimate contact with each other but not bonded to each other. The apparatus and method includes the use of a blown film extrusion die that extrudes two separate blown film polymeric tubes via two separate annular die lips. A fluid cooling system applies cooling fluid across a plurality of surfaces of the two blown film tubes. One of the die lips may be at a different height from the other die lip. The frost line of one blown film tube may be at a different height from the other blown film tube.

The present invention discloses a method for laser welding of plastics, comprising the steps of providing a first plastic material to be welded comprising a compound capable of absorbing near-infrared light, positioning a second plastic material in intimate contact with the first plastic material, and activating a laser source emitting a wave length in the near-infrared spectrum to obtain attachments of the first and the second plastic material. The compound capable of absorbing near-infrared light is a dye derived from croconic acid.

The invention relates to a method for producing polyolefin recyclates, in particular HDPE recyclates. In a specified sequence, color-mixed polyolefin-containing groups are washed at a low temperature, washed at an increased temperature in an alkaline medium, flake-sorted, and treated at an increased temperature in order to remove migration materials. By virtue of the aforementioned method, polyolefin recyclates can be obtained with a substantially improved degree of purity compared to hitherto commercially available recyclates, said recyclates being usable in the production of novel consumer product packaging. Additionally, unpleasant odors connected to known polyolefin recyclates due to the decomposition products of migration materials formed during the extrusion process are largely prevented.

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product.

A method of manufacturing a protection film includes performing a first foaming of a first part of a base material on a substrate to form a bumper layer having first bubbles foamed with a first foaming ratio, and performing a second foaming of a second part of the base material to form a light blocking layer having second bubbles foamed with a second foaming ratio.

In one aspect, a wide microporous film comprises one or more layers comprising a polyolefin, wherein the microporous film has a width of at least 50 inches and comprises one or more non-porous regions. In some embodiments, the microporous film is at least 55 inches or at least 60 inches. Moreover, in some embodiments, the non-porous region is located along a creased region of the microporous film.

A method aspect of the present invention for preparing a continuous thermoplastic filament having a plurality of segments is provided. The method may comprise supplying thermoplastic filaments, and may comprise guiding the thermoplastic filaments alternatingly and sequentially into position to be cut, with respective filament guide components. The method may further comprise cutting each of the thermoplastic filaments into segments by a filament cutting component. Each of the segments may have a forward end and a trailing end. The method may yet further comprise guiding and aligning the forward end of one segment into contact with the trailing end of another segment. The method may also include heating and joining the forward end of the one segment to the trailing end of the other segment to form the continuous thermoplastic filament.

A foam twin-sheet formed air filled gasket is provided. The foam sheets need not be covered with one or more layers of air impermeable materials before, during or after the twin-sheet forming process. Methods for manufacturing the air filled gaskets are also disclosed.

Injection stretch blow molding process for preparing polyolefin containers, comprising the following steps: 1) preparing a preform by injection molding a polyolefin composition comprising a polymer (A) selected from ethylene polymers, propylene polymers and mixtures thereof, and a heat absorber (B); 2) supplying heat to reheat the preform prepared in step 1) and stretch blow molding said preform; wherein the heat absorber (B) is selected from phosphates, condensed phosphates, phosphites, and mixed hydroxide/phosphate oxanion compounds of Copper (Cu), Calcium (Ca), Tin (Sn) and/or Iron (Fe).