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:
Nov. 02, 1976
Filed:
Sep. 24, 1975
Applicant:
Inventors:
Arnaldo Roggero, San Donato ,o;amese, IT;
Alessandro Mazzei, San Donato ,o;amese, IT;
Antonio Proni, San Donato ,o;amese, IT;
Assignee:
Snam Progetti S.p.A., San Donato, Milanese, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
2524 / ; 2524 / ; 2524 / ;
Abstract
A new catalyst, useful in the homo-, co- and ter-polymerization of monomers of the episulphide, vinylic, lactonic, dimethylketene and aldehyde type, is prepared by reacting a metal selected from groups IA, IIA or IIIA of the periodic system, or a hydride, alkyl or amino derivative thereof (e.g. LiBut) with a compound (e.g. ##EQU1## containing at least two groups selected from SO and SO.sub.2 and constituted by one or more repeating units represented by the formula: