Shell Oil Comapny

Resolution Performance Products LLC

Harry Frank

George C Blytas

Anne H Zuzich

Simon Ming-Kung Li

Rupert R Dominguez

Harold E De Le Mare

The present invention discloses a continuous process and the associated system for upstaging liquid epoxy resins to produce resins with higher molecular weight. The process comprises passing continuously (i) a liquid epoxy resin having a first molecular weight, (ii) a catalyst and (iii) a compound having at least one active hydrogen or reactive functional group capable of reacting with the liquid epoxy resin in the presence of the catalyst, flow through one or more reaction chambers and under conditions effective to produce a stream comprising an upstaged epoxy resin product having a second molecular weight. The second molecular weight is higher than the first molecular weight.

Integrated continuous process for upstaging epoxy resins

Method for preparing polyethercyclicpolyol by heating alkali and/or alkaline earth hydroxide optionally with polyol, its precursors or derivatives, admixing epoxy alcohol or epihalohydrin therewith to initiate an addition reaction, and thermally condensing the product of the addition reaction.

Polyethercyclipolyols from epihalohydrins, polyhydric alcohols, and

Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are copolymerized with epoxy resins to form higher molecular weight polyethercyclicpolyols.

Copolymerization of polyethercyclicpolyols with epoxy resins

Method for preparing polyethercyclicpolyol by heating a reaction mixture of an alkali or alkaline earth metal hydroxide with a polyol, adding epihalohydrin to initiate an addition reaction, and heating the mixture until the reaction is complete.

Polyethercyclicpolyols from epihalohydrins, polyhydric alcohols, and

Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the glycol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epoxy alcohols to form higher molecular weight polyethercyclicpolyols.

Polycondensation of epoxy alcohols with polyhydric alcohols and thermal

Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epoxy alcohols to form higher molecular weight polyethercyclicpolyols.

Polycondensation of epoxy alcohols with polyhdric alcohols and thermal

Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed with epihalohydrins to form higher molecular weight polyethercyclicpolyols.

Polycondensation of epihalohydrin and polyhydric alcohols and thermal

A method is disclosed for deactivating a hydrocarbyl phosphonium salt catalyst of an epoxy resin fusion reaction. The method involves contacting the hydrocarbyl phosphonium salt catalyst with a sulfonic acid, such as p-toluenesulfonic acid or methane sulfonic acid. The method is particularly suited for deactivation of moisture-resistant phosphonium salts such as methylene bis(triphenyl phosphonium halide)s.

Deactivation of phosphonium salt catalyst

Improved stabilized acrylate resins compositions comprise the acrylate resin and a precise amount of a stabilizing acid having a pK.sub.a less than 2.5 and having an anion having a nucleophilicity of less than 2.5. An improved method of preparing stabilized acrylate resins comprises reacting the acrylate acid, epoxide, nucleophilic catalyst and stabilizing acid simultaneously to give the stabilized acrylate resin.

Growing community of inventors

Houston, TX, United States of America

Harry Frank