The present disclosure relates to a polyethylene composition with improved swell ratio and mechanical properties for use in preparing blow-molded articles and having the following features: 1) a density from 0.945 to less than 0.952 g/cm.sup.3; 2) an MIF/MIP ratio from 15 to 30; 3) a Shear-Induced Crystallization Index (SIC) from 2.5 to 5.5.

A manufacturing method of a tank including a tubular body portion, and dome-shaped side end portions formed on both sides of the body portion, the manufacturing method includes forming a tubular compact serving as at least part of the body portion from one fiber reinforced resin sheet by winding the fiber reinforced resin sheet including reinforced fibers impregnated with thermoplastic resin is wound several times around a peripheral surface of a core from a direction perpendicular to an axial center of the core in a state where the thermoplastic resin is melted.

The present disclosure relates to a polyethylene composition with improved swell ratio and mechanical properties for use in preparing blow-moulded articles and having the following features: 1) a density from 0.945 to less than 0.952 g/cm.sup.3; 2) an MIF/MIP ratio from 15 to 30; 3) a Shear-Induced Crystallization Index (SIC) from 2.5 to 5.5.

A method for manufacturing packaging comprises the steps of: temperature conditioning one or more selected portions of at least one preform; and blowing and/or stretching the at least one temperature conditioned preform into a blow mold to form a container including an offset neck finish. Containers, packaging systems and packaging products are disclosed.

The present disclosure provides for composite tank assemblies and related methods of fabrication and use. More particularly, the present disclosure provides for linerless composite tank assemblies for aircraft or fuel or the like, and related modular manufacturing methods. The present disclosure uses a multi-section manufacturing method and carbon fiber or equivalent material with epoxy or the like to fabricate the linerless composite tank assemblies (e.g., thermosetting epoxy; thermoplastic).

The present disclosure relates to a polyethylene composition with improved swell ratio and mechanical properties for use in preparing blow-moulded articles and having the following features: 1) a density from 0.945 to less than 0.952 g/cm.sup.3; 2) an MIF/MIP ratio from 15 to 30; 3) a Shear-Induced Crystallization Index (SIC) from 2.5 to 5.5.

A storage tank for storing water, waste, or other material is provided where the storage tank has co-moulded external features for fittings. A method for manufacturing such a storage tank is also provided.

A method for producing a grinding liquid mixing tank and the structure thereof, the method includes: using a tank body made of PP or PVDF wherein a bottom thereof has a conical arc-shaped wall having at least one wall hole; using a rotor case made of PP or PVDF and including a bottom case wall, a side wall surrounding the bottom case wall, and a connecting wall connected to a top edge of the side wall; heating to soften the rotor case and placing it into the wall hole; using a jig to contact the rotor case, such that the connecting wall is deformed to be coupled to the wall hole; welding a joint between the connecting wall and the wall hole to form the tank body; and a magnetic levitation stirrer is then installed in the tank body to complete the structure of the grinding liquid mixing tank.

A composition comprising a high molecular weight, chromium catalyzed ethylene copolymer (also referred to as a polyethylene resin), a nucleating agent and zinc oxide.

A linerless composite tank for a waste or water system on board an aerospace vehicle includes a monolithic tank body having a first composite material co-cured with a second composite material. The first composite material includes a first resin and the second composite material includes a second resin that is different from the first resin. The first composite material forms an innermost surface of the monolithic tank body defining a tank chamber of the monolithic tank body. A method of manufacturing the linerless composite tank includes providing a mold having a desired interior shape of the monolithic tank, applying the first composite material to the mold, applying the second composite material to the mold, and co-curing the first composite material with the second composite material to form the monolithic composite tank.