TH49570EX - Structures with small holes, karma A better way to make structures With small holes and compression die For use in this - Google Patents

Abstract

Cavity structures that have one or more smaller holes in the structure. The above structure consists of, for example, Polymer mixture in which the above structure has a small slit base. And have at least two small hole walls extending from the said base to the length of the already mentioned base in the direction of The axis is at least about 0.2 cm. The above wall has a base and a tip. The far side, where the bases and walls are said, make up the holes mentioned; And the above structure has a minimum specific niche volume of approximately 1.2 cm3 / g, a minimum specific pore surface area of approximately 500 cm2 / g, and the compressive strength (dry) at least approximately 13,800 dine. This structure can be in The shape of fibers or sheets The fibers have a minimum specific small hole volume of approximately 2.0 cm3 / g and a minimum specific hole surface area of approximately 2,000 cm2 / g, providing a better process and extrusion die for use in that process. In which the compression die has an opening which is A ring whose wall opening extends radius exits the ring opening. That too:

Claims (1)

1. The injection molding process for structures in which there are mainly parallel holes, the above method consists of, for example, the following steps: (a) feed the molten polymer mixtures that flow. Through the extrusion die, in which the compression die has a ring-shaped opening of the base Which has many small holes in the walls that expand along the radius From the opening of this ring-shaped base, a type that renders the polymer mixture as it exits the injection die, compresses the It includes, for example, a hollow annular base and a wall of holes: