The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1984
Filed:
Jul. 15, 1982
Agip Petroli S.p.A., Rome, IT;
Abstract
A novel process is disclosed for polymerizing and copolymerizing alpha olefins (ethylene included) also in the presence of conjugated diolephins, and more particularly for copolymerizing ethylene with 1,3-butadiene, based on the use of a plural-component catalyst system, one of said components being a novel complex which contains titanium and magnesium. The process gives, in yields higher than 200,000 grams of polymer per g of elemental Ti, ethylene-butadiene copolymers having a distribution of monomeric units characterized by a particular novel .sup.13 C-NMR spectrum, a high apparent specific gravity and such a grit size as to impart flowability to the dry product, and a distribution in the presence of sulphur and accelerators such as to acquire a gel content (fraction insoluble in boiling xylenes) over 50%.