Anaerobic composition including a hydroxy (meth) acrylate...

Details Anaerobic composition including a hydroxy (meth) acrylate... Anaerobic composition including a hydroxy (meth) acrylate...

C - Chemistry, Metallurgy

08

L

400/5054

C08L 33/14 (2006.01) C08F 290/04 (2006.01) C09J 4/00 (2006.01)

Patent

CA 1182238

POLYMERIC ADDUCTS WITH PENDANT POLYMERIZABLE DOUBLE BONDS, THEIR PREPARATION AND USE AS REACTIVE THICKENERS IN IMPROVED ANAEROBIC COMPOSITIONS ABSTRACT OF THE DISCLOSURE Novel stable anaerobic compositions are prepared which contains as a novel reactive thickener, a polymerizable polymeric adduct having pendant double bonds which is dissolved in a polymerizable monomeric diluent. The anderobic compositions show improved performance proper- ties. The thickener is prepared by reacting an anhydride-containing polymer with an excess of a C2-C5 hydroxyalkyl acrylate or meth- acrylate (e.g. hydroxyethyl and hydroxypropyl methacrylate), optionally in the presence of (meth)acrylate monomers which are not reactive with the anhydride groups of the polymer and which act as an additional diluent. The polymer may be prepared by conventional free radical polymerization techniques using maleic, citraconic, and/or itaconic anhydride and an ethylenically unsaturated monomer (e.g. C1-C10 alkyl acrylates or methacrylates or styrene).

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