Preparation process of acrylic acid ester polymer

Details Preparation process of acrylic acid ester polymer Preparation process of acrylic acid ester polymer

2005-04-12

2005-04-12

Zalukaeva, Tatyana (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S173000, C526S177000, C526S181000, C526S185000, C526S318000, C526S319000

Reexamination Certificate

active

06878789

ABSTRACT:
A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another (meth)acrylic monomer in the presence of an organolithium compound and an organoaluminum compound represented by the following formula (I):in-line-formulae description="In-line Formulae" end="lead"?AlR1R2R3  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R1represents an alkyl group having at least 3 carbon atoms, an alkoxy group having at least 3 carbon atoms or an aryloxy group, R2and R3each independently represent an aryloxy group or may be coupled together to form an arylenedioxy group. The process makes it possible to heighten the reaction rate and living properties upon polymerization and heighten the block formation efficiency upon block copolymerization.

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