Oxea Bishop LLC

Oxea Corporation

Mapei Spa

Donald K Raff

Heinz Strutz

Guido D Frey

Kenneth Allen Windhorst

Norman Nowotny

Marcos L Schroeder

Fred Gaytan

Oakley T Cortez

William E Slinkard

Kurt Schalapski

Leif Johnen

Christoph Balzarek

Dirk Bermann

Howard W Brooks

Tracy Kevin Hunt

Tracy Kevin Hung

Michael J Stone

Antonietta Schiro

Tito Zanetta

Olivier Borgmeier

Norman Nowotney

A multistage tubular reaction system and method for preparing methylol derivatives of an aldehyde includes a tubular reaction system with a plurality of successive reactor stages comprising a plurality of jacketed reaction tubes provided with a cooling system adapted to control flow of a cooling medium through said jacketed reaction tubes. The cooling medium flow is controlled independently in different stages in response to temperature measurements in the reaction system to regulate temperature. In order to further reduce temperature spikes and byproduct generation, aldehyde is stepwise added to the production stream at a plurality of feed ports proximate to reaction tubes equipped with tube inserts to enhance mixing and heat transfer.

Manufacture of methylolalkanes with augmented heat transfer and improved temperature control

A multistage tubular reaction system and method for preparing methylol derivatives of an aldehyde includes a tubular reaction system with a plurality of successive reactor stages provided with a formaldehyde containing feed stream. The system includes multiple feed ports for the staged addition of Cor higher condensible aldehyde and/or base to the formaldehyde containing stream at a plurality of successive feed points to provide a production stream, which is progressively provided with additional reactants as the production stream advances through the successive reaction stages. Advantages include better temperature control and reduced byproduct formation.

Manufacture of methylolalkanes

The present invention relates to a copolymer composition comprising 5-95 pphwm of vinyl acetate and 95-5 pphwm of vinyl 3,5,5-trimethylhexanoate, wherein the corresponding 3,5,5-trimethylhexanoic acid has a content of the 3,5,5-trimethylhexanoic acid isomer of at least 88% by weight. Said copolymer is composed and synthesized so as to be useful in the formulation of binders for fibrous substrates such as woven or nonwoven products, paints, adhesives for porous or non-porous substrates, construction cementitious compositions, redispersible powders.

Vinyl acetate/vinyl 3,5,5-trimethylhexanoate copolymer binder resins

Process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane includes three stage distillation characterized in that second and third stages are configured as thin film evaporators with a column attachment with the second stage facilitating trimethylopropane recovery and the third stage facilitating ditrimethylolpropane recovery.

Method for recovering di-trimethylolpropane and trimethylolpropane-enriched product streams from the side streams of trimethylolpropane production

A method of reclaiming trimethylolpropane from purification residue includes hydrolyzing a purification residue with an aqueous medium in the presence of (i) an acid and (ii) an oxidizing agent. The method is particularly effective to reclaim trimethylolpropane from monolinear-bis-TMP-formal:

Recovery of trimethylolpropane from purification residue

A method of reclaiming alcohols from purification residue includes hydrolyzing a purification residue with an aqueous medium in the presence of (i) an acid and (ii) an oxidizing agent.

Recovery of alcohols from purification residue

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Waynesville, NC, United States of America

Donald K Raff