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. 12, 2002
Filed:
Sep. 18, 2000
Applicant:
Inventors:
Ralf Krüger, Beaumont, TX (US);
Gerhard Heilig, Bergisch Gladbach, DE;
Claus Dieter Sommerfeld, Overath, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/38 ; C08F 1/418 ; C08F 2/06 ;
U.S. Cl.
CPC ...
C08F 2/38 ; C08F 1/418 ; C08F 2/06 ;
Abstract
The present invention relates to a process for the production of partially fluorinated fluoropolymers, in accordance with which fluoromonomers are free-radically polymerized in the presence of polyfluoropropanes or polyfluorobutanes of the formulae CF —CH —CF H, CF —CHF—CF —H, CF —CH —CF , CHF —CF —CH F, CF —CH —CF —CH AND CF —CHF—CF —CH and optionally a chain-transfer agent.