Process and apparatus for the production of filled thermoplastic polymers
AssigneeMagma Trade Di Mauro Magni & C. SAS
InventorsMauro Magni, Giuseppe Delzotto
Life of this patent
Estimating the term…
Abstract
To produce filled thermoplastic polymers starting from a waste thermoplastic base material, the base thermoplastic material is fed into a container (1) provided with a device for mixing and stirring (2,3) in which the base thermoplastic material is softened, the required filler is fed into said device and stirring is continued to thoroughly blend filler and softened material, subsequently collecting the softened and filled material from said container and subjecting it to an extrusion or other densification step.
Claims25
A process for producing thermoplastic material containing a filler, said process comprising:
- feeding a base thermoplastic material to a container (1) provided with a mixer and stirrer (2, 3);
- increasing the temperature of the base thermoplastic material until said material has reached a softened condition;
- mixing a filler with said softened thermoplastic material within said container (1);
- collecting said material filled with said filler from said container;
- and carrying out a densification step of said softened and filled material.
An apparatus for producing filled thermoplastic material, said apparatus comprising a container (1) having an inner ring facing inward and tilting downwardly, the container being provided with a stirring element (2) fitted rotatably on the base of the container and provided with a plurality of blades (3) for stirring and disintegrating the thermoplastic material and bringing the thermoplastic material to a softened condition, a filler feeder (7,10) for feeding a filler into said thermoplastic material within said container, said filler feeder (7, 10) being located in the lower portion of the container where the thermoplastic material is in a softened condition, and a liquid feeder in the form of nozzles (14 and 15) for feeding water and oil into the container (1).
An apparatus for producing filled thermoplastic material, said apparatus comprising a container (1) having a base (1a) and a wall (1b) providing a disintegrator having a plurality of blades (3, 3a) at a lower portion of the container (1) for disintegrating said thermoplastic material, the blades (3) being rotatably mounted on the base (1a) of the container (1) to provide a stifling element (2) for bringing the thermoplastic material to a softened condition and the blades (3a) being stationary and mounted on the wall (1b) of the container (1) of the stirring element (2) to disintegrate the thermoplastic material;
- a filler into the thermoplastic material, the filler feeder (7, 10) being located in the lower portion of the container (1) where the thermoplastic material is in a softened condition.
An apparatus for producing filled thermoplastic material, said apparatus comprising a container (1) having a mixture and stirrer (2, 3) for bringing said thermoplastic polymeric material to a softened condition, a filler feeder (7, 10) for feeding a filler into said thermoplastic material within said container, said filler feeder (7, 10) being located in the lower portion of the container where the thermoplastic material is in a softened condition;
- said filler feeder further comprising a gravimetric metering arrangement (7) which is separate from said container (1), and said filler feeder (10) is a feed screw, wherein said gravimetric metering arrangement (7) comprises an inverted hopper (11) and a screw (11a), said inverter hopper (11) being positioned above the feed screw, whereby filler is removed from metering device via said screw (11a) and introduced into inverted hopper (11), from where it falls into feed screw (10);
- a disintegrator (3, 3a) disposed in the container for disintegrating said thermoplastic material, and
- a collector (5) for collecting the softened and filled material from said container (1), and a densifier (5,6) for subjecting said filled material to at least one densification step.
An apparatus for producing filled thermoplastic material, said apparatus comprising a container (1) having a mixer and stirrer (2, 3) bringing said thermoplastic polymeric material to a softened condition, a filler feeder (7, 10) for feeding a filler into said thermoplastic material within said container, said filler feeder (7, 10) being located in the lower portion of the container where the thermoplastic material is in a softened condition;
- said container (1) further comprising an inner ring facing inward and tilting downward;
- a liquid feeder (14 and/or 15) to feed water and/or oil to said container (1), the liquid feeder comprising nozzles;
- a collector (5) for collecting the softened and filled material from said container (1), and
- a densifier (5,6) for subjecting said filled material to at least one densification step.
A process for producing thermoplastic material containing a filler, said process comprising:
- feeding a base thermoplastic material to a container wherein the container is an apparatus for producing filled thermoplastic material, said apparatus comprising the container (1) having a mixer and stirrer (2, 3) for bringing said thermoplastic polymeric material to a softened condition, a filler feeder (7, 10) for feeding a filler into said thermoplastic material within said container, said filler feeder (7, 10) being located in the lower portion of the container where the thermoplastic material is in a softened condition;
- the apparatus further including a collector (5) for collecting the softened and filled material from said container (1), and densifier (5,6) for subjecting said filled material to at least one densification step,
- said process further comprising increasing the temperature of the base thermoplastic material until said material has reached a softened condition;
- mixing a filler with said softened thermoplastic material within said container (1);
- collecting said material filled with said filler from said container and carrying out a densification step of said softened and filled material.
Dependencies are inferred from the claim text.