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.:

US 7045581 B1

PDF
Full Text
Expired
Date of Patent:
May. 16, 2006

Filed:

May. 08, 2002
Applicant:

Pierre-alain Fleury, Ramlinsburg, CH;

Inventor:

Pierre-Alain Fleury, Ramlinsburg, CH;

Assignee:

List AG, Arisdorf, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for carrying out homogenous polymerization reactions in a reactor, wherein monomers and/or prepolymers are fed (apportioned). In a first step, an initiator is optionally admixed with the monomer and/or prepolymer. In a second step, once viscosity is substantially higher, a solvent is added thereto and/or the monomer itself is partially evaporated, it is condensed externally and/or internally and fed back into the reactor.


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