Size selective catalysis with ion exchange resins

Details Size selective catalysis with ion exchange resins Size selective catalysis with ion exchange resins

2005-05-17

2010-12-21

Bernshteyn, Michael M (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

52, 52

Reexamination Certificate

active

07855262

ABSTRACT:
A method of preparing oligomeric compounds from polyfunctional reactants in the presence of heterogeneous catalysts that exhibit size selective characteristics, such that further reaction between first generation products or first generation products and reactants is less favored than between the starting reactants is disclosed. Preparation of oligomeric polyacrylate compounds in a liquid solution using these catalysts is also disclosed comprising reacting X—H acidic Michael donor compounds with unsaturated Michael acceptor compounds containing more than one unsaturated group.

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