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 7105615 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 12, 2006

Filed:

Nov. 03, 2003
Applicants:

Reinhard Linemann, Nassandres, FR;

Guillaume Le, Caen, FR;

Inventors:

Reinhard Linemann, Nassandres, FR;

Guillaume Le, Caen, FR;

Assignee:

Arkema France, Puteaux, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention concerns a cationic catalyst system comprising an initiator (I), a catalyst (K) and a cocatalyst (CoK). The cocatalyst (CoK) is an agent releasing the active polymerizing center of its counter anion generated by the reaction between the catalyst (K) and the initiator (I). Said cocatalyst is characterized by the existence of a double bond electron-depleted by an electroattractive group. It is selected, for example, from the group consisting of the following complexing agents including o-chloranyl (3,4,5,6-tetrachloro-1,2-benzoquinone), p-chloranyl (2,3,5,6-tetrachloro-1,4-benzoquinone), nitrobenzene, trinitrobenzene, or tetracyanoethylene.


Find Patent Forward Citations

Linemann, Reinhard. (2006). Synthesis method for polydimethylketene by friedel-craft cationic polymerization of dimethylketene (U.S. Patent No. 7105615). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7105615

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