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:
Jun. 13, 1978
Filed:
Nov. 14, 1975
Applicant:
Inventors:
Cecile Baudin, Kremlin-Bicetre, FR;
Mihajlo Miskovic, Paris, FR;
Alain Polton, Paris, FR;
Pierre Sigwalt, St Michel-sur-Orge, FR;
Assignee:
Societe Chimique des Charbonnages, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
C08E / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 2608 / ; 2608 / ;
Abstract
This invention relates to copolymers of a macromolecular compound having a non-halogenated and double-bonded chain and of a vinylaromatic monomer and the process for obtaining same. The reaction between the macromolecular compound and the vinylaromatic monomer takes place at a temperature of between -80.degree. C and +40.degree. C in the presence of 5.10.sup.-4 to 5.10.sup.-2 mol/l of a Lewis acid initiator and possibly in the presence of a co-initiator. These copolymers obtained by cationic grafting are thermoplastics elastomers.