Dow Agrosciences LLC

Ddp Specialty Electronic Materials US, LLC

Herbert Nathan Praay

Ronald B Leng

Eric W Otterbacher

William Gerald Stobby

James William Ringer

Jimmy J Tai

Nicole L Wagner

Megan Marie Thomas

Mark Victor Michael Emonds

A polymer foam system comprises a polyaldehyde, an inorganic powder, a polycarbamate, a blowing agent and an acid catalyst wherein the polyaldehyde is in an A-side of the polymer foam system and the polycarbamate is in a B-side of the polymer foam system wherein the inorganic powder is selected from a group consisting of Group II oxides and hydroxides, the polyaldehyde has an average functionality of more than one and three or less, the polycarbamate has an average functionality of 3.4 or more and 4.2 or less, the polycarbamate has an average equivalent weight of 200 grams per equivalent or more and 325 grams per equivalent or less, and the average particle size of the inorganic powder in micrometers divided by the ratio of concentration in millimoles of inorganic powder to acid catalyst is 2.5 or more an 9.3 or less.

System for dimensionally stable isocyanate-free polyurethane foam

Cyhalofop is prepared by coupling 2-(4-hydroxyphenoxy)propionic acid and 3,4-difluorobenzonitrile with base in a polar aprotic solvent in the presence of a phase-transfer catalyst.

Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid esters

Cyhalofop esters are prepared by coupling 2-(4-hydroxyphenoxy)-propionic acid with 3,4-difluorobenzonitrile with base in a polar aprotic solvent (optionally including a phase-transfer catalyst), alkylating with alkyl halide, removing the polar aprotic solvent (optionally using cyhalofop ester as a flux), removing salt by aqueous extraction of molten cyhalofop ester without a solvent, and removing residual water by heating under reduced pressure.

The present invention is a process for the purification of glyphosate (PMG) comprising:

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Midland, MI, United States of America

Herbert Nathan Praay