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:
Feb. 17, 1976
Filed:
Apr. 11, 1974
Gilbert Marie, Pau, FR;
Societe Nationale des Petroles d'Aquitaine, Courbevoie, FR;
Abstract
A process is described for the preparation of substantially linear, amorphous random copolymers of mono-olefins or mono-olefins and unconjugated dienes with N-unsaturated lactams. At least two mono-olefins containing 2 to 20 carbon atoms, and possibly an unconjugated diene, are placed in contact, in an inert liquid medium at a temperature of between -80.degree. and +150.degree.C, with at least one such N-unsaturated lactam in the form of a complex with a Lewis acid, in the presence of a co-ordination catalyst system, until a copolymer forms. The resulting copolymers can be vulcanized, and among other properties have improved adherence to metal surfaces.