Solvay (China) Co., Ltd.

Rhodia Operations

Rhodia (China) Co. Ltd.

Solvay Co., Ltd.

Zhaoqing Liu

Laurent Guy

Floryan De Campo

Philippe Jost

Daobing Lin

Qiaobo Li

David James Wilson

This invention relates to new monomers prepared from phosphorus-containing diene monomers and (meth)acrylonitrile via Ritter reactions, and the preparation method thereof. The polymer of these monomers can be utilized in various applications such as water treatment, rheology modifier, surface modification, etc. The monomers have the following structure (II), Wherein R, R, R, R, R, Rand Rrepresent, independently, hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, heterocycloalkyl, or alkenyl groups; Rand Rrepresents RO, and Rrespectively wherein Rand Rrepresents hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkenyl groups, or metals selected from the group consisting of Na, Li, Ca; Rrepresents H, or CH. 

N-substituted acrylamides, preparation method and use thereof

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 &#x3b1;, &#x3b2;- or &#x3b2;, &#x3b3;-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) 

Method for preparing conjugated diene phosphonate compounds

This invention relates to conjugated diene phosphinate compounds for making halogen free phosphinate-containing flame retardants, inimer and metal extractants, method for preparing said compounds from unsaturated ketones or aldehydes, and the 5 use thereof. The compounds of the present invention having the following formula (III), wherein R, R, R, R, Rand Rrepresent, independently, hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, heterocycloalkyl, or alkenyl groups; Rrepresents hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkenyl groups, or metals selected from the group consisting of Na, Li, Ca. 

Conjugated diene phosphinate compounds, preparation method and use thereof

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Shanghai, China

Zhaoqing Liu