| abstract |
THE INVENTION PROVIDES A POLYOLEFINIC PRODUCT THAT INCLUDES A RAMPED OLEFIN COPOLYMER WITH AN ISOTACTIC POLYPROPYLENE SKELETON, POLYETHYLENE RAMIFICATIONS AND ONE OR MORE COMMONOMEROS. THE TOTAL COMMONOMER CONTENT OF THE RAMIFIED OLEFIN COPOLIMERO IS INCLUDED BETWEEN 0 AND 20 MOL%. ALSO, THE MASS RELATIONSHIP OF ISOTACTIC POLYPROPYLENE TO POLYETHYLENE, WILL VARY BETWEEN 99.9: 0.1 AND 50:50. ADDITIONALLY, A PROCEDURE FOR THE PREPARATION OF A RAMIFIED OLEFINIC COPOLYMER IS PROVIDED THAT CONSISTS OF: A) ETHYLENE COPOLYMERIZE, OPTIONALLY WITH ONE OR MORE COPOLYMERIZABLE MONOMERES, IN A POLYMERIZATION REACTION UNDER SUFFICIENT COMPARTMENT COMPARTMENT FORMAT 40% CHAIN TERMINAL GROUPS; B) copolymerizing the product of a) with propylene and, optionally, one or more monomers copolymerizable IN A polymerization reactor under suitable polypropylene polymerization using a metal catalyst DETRANSICION stereorigid chiral CAPABLE OF PRODUCING isotactic polypropylene; AND C) RECOVER A RAMIFIED OLEFIN COPOLYMER. |