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:
Nov. 25, 2014
Filed:
Oct. 30, 2009
Applicants:
Zhaoqing Liu, Shanghai, CN;
Floryan DE Campo, Shanghai, CN;
Inventors:
Zhaoqing Liu, Shanghai, CN;
Floryan De Campo, Shanghai, CN;
Assignee:
Rhodia Operations, Aubervilliers, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/40 (2006.01); C08F 30/00 (2006.01); C07F 9/02 (2006.01); C07F 9/38 (2006.01);
U.S. Cl.
CPC ...
C07F 9/3826 (2013.01);
Abstract
It is provided a method for preparing conjugated diene phosphonate compounds with high reactivity, which can be used to prepare a variety of phosphonate-bearing conjugated dienes. Some of those dienes will become reactive monomers to make polymers and co-polymers. The said method comprises the step of reacting α, β- or β, γ-unsaturated ketones or aldehydes with phosphorus acid or its derivates optionally in a mixture of acetic anhydride and/or acetic acid, to obtain a conjugated diene phosphonate compound having the formula (III)