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:
Mar. 23, 1999
Filed:
Jun. 17, 1996
Applicant:
Inventors:
Bruno Vuillemin, Pau, FR;
Stephane Nowe, Monein, FR;
Assignee:
Elf Atochem S.A., Puteaux, FR;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 64 ; 5263171 ; 526318 ; 5263184 ; 526319 ; 5263297 ;
Abstract
The process consists in mixing, for a period tm less than the period of polymerization, in a micromixer, a flow Fm of monomer(s) to be (co)polymerized and a flow Fa of an initiator system leading to a propagation constant kp(t) greater than or equal to 500 l mol.sup.-1 s.sup.-1 and in injecting, in a polymerization reactor, a flow Fr resulting from the mixing of the flows Fm and Fa, the concentration of monomer(s) in the flow Fr being at least 10% by weight.