Process and apparatus for the production of polyolefine granulates

Claim 1

AN APPARATUS FOR THE PRODUCTION OF GRANULATES OF HIGH PRESSURE POLYETHYLENE WHICH COMPRISES MEANS DEFINING A GRANULATING FLOW CONDUIT HAVING A FIRST INLET FOR RECEIVING MATERIAL CAPABLE OF FLOWING IN MELT FORM, A SECOND INLET FOR RECEIVING AN ADDITIVE AGENT TO BE MIXED WITH SAID MATERIAL AND AT LEAST ONE OUTLET OPENING, MEANS FOR PASSING SAID MATERIAL CAPABLE OF FLOWING IN MELT FORM ALONG SAID CONDUIT TO SAID OUTLET, AND MEANS FOR COMMINUTING THE MATERIAL UPON EMERGENCE FROM SAID OUTLET, SAID MEANS FOR PASSING SAID MATERIAL IN MELT FORM ALONG SAID CONDUIT INCLUDING A PAIR OF ROTATABLE WORM MEANS, EACH WORM MEANS BEING FIXEDLY LPROVIDED ALONG AN INTERMEDIATE PORTION THEREOF WITH AT LEAST TWO ADJACENT KNEADING DISCS OF SUBSTANTIALLY LPOLYGONAL SHAPE YET WITH EACH POLYGONAL FACE BETWEEN ADJACENT APEXES HAVING AN ARCUATE CONFIGURATION, THE TWO DISCS OF EACH WORM MEANS HAVING THEIR APEXES PERIPHERIALLY OFFSET WITH RESPECT TO ONE ANOTHER, THE DISCS OF ONE OF THE WORM MEANS BEING AXIALLY ADJACENT AND IN SLIDING ABUTTING COOPERATION WITH THE CORRESPONDING DISCS OF THE OTHER WORM MEANS ALONG A CONSTANTLY CHANGING PERIPHERAL PORTION THEREOF DURING ROTATION THEREOF TOGETHER WITH THE CORRESPONDING WORM MEANS AND EACH DISC BEING IN SLIDING ABUTMENT WITH THE ADJACENT PORTION OF SAID CONDUIT THEREAT.

Claim 2

AN APPARATUS FOR THE PRODUCTION OF GRANULATES OF HIGH PRESSURE POLYETHYLENE WHICH COMPRISES MEANS DEFINING A GRANULATING FLOW CONDUIT HAVING A FIRST INLET FOR RECEIVING MATERIAL CAPABLE OF FLOWING IN MELT FORM, A SECOND INLET FOR RECEIVING AN ADDITIVE AGENT TO BE MIXED WITH SAID MATERIAL AND AT LEAST ONE OUTLET OPENING, MEANS FOR PASSING SAID MATERIAL CAPABLE OF FLOWING IN MELT FORM ALONG SAID CONDUIT TO SAID OUTLET, AND MEANS FOR COMMINUTING THE MATERIAL UPON EMERGENCE FROM SAID OUTLET, SAID MEANS FOR PASSING SAID MATERIAL IN MELT FORM ALONG SAID CONDUIT INCLUDING A PAIR OF ROTATABLE WORM MEANS, EACH WORM MEANS BEING FIXEDLY LPROVIDED ALONG AN INTERMEDIATE PORTION THEREOF WITH AT LEAST TWO ADJACENT KNEADING DISCS OF SUBSTANTIALLY LPOLYGONAL SHAPE YET WITH EACH POLYGONAL FACE BETWEEN ADJACENT APEXES HAVING AN ARCUATE CONFIGURATION, THE TWO DISCS OF EACH WORM MEANS HAVING THEIR APEXES PERIPHERIALLY OFFSET WITH RESPECT TO ONE ANOTHER, THE DISCS OF ONE OF THE WORM MEANS BEING AXIALLY ADJACENT AND IN SLIDING ABUTTING COOPERATION WITH THE CORRESPONDING DISCS OF THE OTHER WORM MEANS ALONG A CONSTANTLY CHANGING PERIPHERAL PORTION THEREOF DURING ROTATION THEREOF TOGETHER WITH THE CORRESPONDING WORM MEANS AND EACH DISC BEING IN SLIDING ABUTMENT WITH THE ADJACENT PORTION OF SAID CONDUIT THEREAT.