"The extrusion process removes air simultaneously as the catalyst enables the polyurethane to flow like a liquid," said Christopher Ellison, a University of Minnesota chemical engineering and ...

Polyurethane foam can be divided into two categories, such as open-cell and closed-cell foam. The former is a plastic with incomplete cell walls and include holes through which air and liquid can ...

EVANSTON, Ill. -- Researchers have developed a new method for upcycling polyurethane foams, the spongy material found in mattresses, insulation, furniture cushions and shoes. This process, developed ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Editor?s note: The author, Donald E. De Laney, a consultant in polymer process rheology, worked with GE for 17 years and has worked with Dynisco over the past eight years. The plastics compounding and ...

Extrusion is a process used for creating a product (an extrudate) by forcing a material through a die or an orifice to form a shape, or alternatively an extruder is used to produce semi-finished or ...

Megaweld thermoplastic polyurethane, trapezoidal and round belts are manufactured by a unique extrusion process. They are suitable for a wide range of applications and industries. Megaweld are used ...