Anionically copolymerized living random (meth)acrylic copolymers

Details Anionically copolymerized living random (meth)acrylic copolymers Anionically copolymerized living random (meth)acrylic copolymers

1998-06-17

1999-11-02

Zitomer, Fred

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253267, 525282, 526173, 526212, 526262, 5263285, C08F29702

Patent

active

059772611

ABSTRACT:
Living random (meth)acrylic copolymers, facilely converted into random co(meth)acrylates and block copolymers thereof, comprise the anionic copolymerizates of at least one comonomer A with at least one comonomer B selected from among the (meth)acrylates and maleimides, at least one of the comonomers A and B comprising a (meth)acrylate, in the presence of (i) at least one alkali or alkaline earth metal, mono- or difunctional initiator and (ii) at least one ligand, for example a nonnitrogenous macrocyclic complexant, e.g., a crown ether, or an alkali metal alcoholate.

REFERENCES:
patent: 5219945 (1993-06-01), Dicker et al.
patent: 5294674 (1994-03-01), Varshney et al.
patent: 5391628 (1995-02-01), Gaillard et al.

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