US 5,457,172 A · (Meth)acrylic compounds, process for their preparation and their application to the synthesis of new polymers

Abstract

These compounds are denoted by the following formula (I): ##STR1## in which: Z denotes H or a linear or branched alkyl radical, X denotes O or S, each of A and B independently denotes an alkylene radical, it being possible for this radical to be substituted, R denotes H or an alkali metal, or else a linear or branched alkyl radical, x has the value of 0 or 1, and y has the value of 0, 1 or 2, the radical A not existing if x and y are both equal to 0, X being incapable of denoting O when R=alkyl and when R=H with x=y=0, and B being incapable of denoting optionally substituted methylene when X=S, x=y=0 and R=alkyl. According to the invention, different simple and efficient processes are proposed for preparing these new compounds, which can be applied to the preparation of new polymers and copolymers.

Claims46

Dependent claims

An acrylic compound of formula (I):

##STR22## wherein:
Z is H or a linear or branched alkyl radical,
X is O or S,
each of A and B independently is an unsubstituted or substituted alkylene radical,
R is H, an alkali metal, or a linear or branched alkyl radical,
x has the value of 0 or 1, and
y has the value of 0, 1 or 2, but is 0 when x=0, with the following provisos:
(a) the radical A does not exist if x and y are both equal to 0;
(b) X is S when R=alkyl with x=y=0, or with x=1 and y=0, or with x=1 and y=2;
or when R=H or alkali metal with x=y=0;
(c) B is not substituted methylene when X=S, x=y=0 and R=alkyl;
(d) R is H, when X=S with Z=alkyl and x=y=0;
(e) --A--S.sub.x (O).sub.y --B-- is other than methylene when X=S and when Z=H with R=H, or Z=H with R=alkyl, or Z=alkyl with R=alkyl;
and
(f) B is not substituted ethylene when X=S, x=y=0, Z=H, and R=H.

12 more elements

Dependencies are inferred from the claim text.

(Meth)acrylic compounds, process for their preparation and their application to the synthesis of new polymers

Life of this patent

(Meth)acrylic compounds, process for their preparation and their application to the synthesis of new polymers

Life of this patent

Abstract

Claims46