Rohm and Haas Company

Kellogg Brown + Root LLC

Ddp Specialty Electronic Materials Us, LLC

Ddp Specialty Electrons Materials US 8, LLC

Mark T Vandersall

Joy L Mendoza

Robert Michael Mason

Stephen Bass

Steven John Skoog

Stephen Gerard Maroldo

Andrew M Savo

Liu Yang

Theodor Robert Wilks

Klaus-Dieter Topp

Rudolf Alfred Weinand

William Frederick Rogers, Jr

Provided is a process for producing 2,2-bis(4-hydroxyphenyl)propane, comprising condensing phenol with acetone in the presence of an acid catalyst;

Method of catalysis for the production of bisphenol A

This invention relates to a method for inhibiting polymerization of (meth)acrylic acid and its esters using a polymerization inhibitor which comprises at least one reduced halide-content azine dye-based compound. A process for producing reduced halide-content azine dye-based compounds using ion exchange resin technology is also provided.

Method for inhibiting polymerization of (METH) acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor

Method for inhibiting polymerization of (meth)acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor

A method for preparing ketones in greater yield and selectivity compared to previous catalyzed reactions by acid-catalyzed condensation reaction using a metal-doped polysulfonated ion exchange resin catalyst is disclosed. For example, use of polysulfonated ion exchange resins having at least 5.0 milliequivalents sulfonic acid groups/gram catalyst and loaded with metal, such as palladium, provides enhanced yields of methyl isobutyl ketone from the condensation reaction of acetone compared to use of conventional monosulfonated ion exchange resin catalysts.

Metal-doped sulfonated ion exchange resin catalysts

Washed cleavage product (WCP) in a phenol manufacturing process is treated to remove sodium ions. The WCP is contacted with a cation exchange resin in hydrogen form, and then with anion exchange resin in free base or hydroxide form, to produce a WCP essentially free of sodium ions. The cation and anion exchange resins are regenerated with acid and caustic, respectively. The treatment improves productivity and product quality of new and existing phenol processes.

Low sodium cleavage product

A process for removing an oxidizable organic compound from an oxidizing gas stream which includes contacting the gas stream with a bed of carbonaceous adsorbent particles, wherein the adsorbent particles comprise porous pyrolyzed particles of a polysulfonated cross-linked synthetic copolymer, to adsorb the oxidizable organic compound on the adsorbent particles.

Carbonaceous adsorbents for prevention of carbon bed fires

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Jamison, PA, United States of America

Mark T Vandersall