Rohm and Haas Company

Other

William D Weir

Ernest D Weiler

Edward E Kilbourn

Harold E Aller

Michael Damian Bowe

Eric Karl Eisenhart

Christine McDade

David Gerald Speece, Jr

Martha Alice Harbaugh Wolfersberger

William Joseph Grieco

Donald Robert Weyler

Makarand D Phadke

An improved transesterification process is disclosed for forming certain (meth)acrylates by the transesterification of an alkyl (meth)acrylate with a hydroxyl alkyl imidazolidin-2-one using a transesterification catalyst in the presence of a polymerization inhibitor.

Transesterification process

A process is provided for preparing a low odor composition containing a dicyclopentenyl ester including the steps of preparing a distillation mixture containing the dicyclopentenyl ester and from 10 to 10,000 parts per million by weight based on weight of the dicyclopentenyl ester, of a suitable inhibitor; distilling the distillation mixture at a temperature in the range of 140&deg; C. to 250&deg; C.; collecting a first distillation fraction of the dicyclopentenyl ester; and then collecting a second distillation of the dicyclopentenyl ester; wherein the level of dicyclopentenyloxy(meth)acrylate in the second distillation fraction is in the range of 0 to 0.2 weight %, based on the weight of the dicyclopentenyl ester in the second distillation fraction. The second distillation fraction provides a low odor composition of the dicyclopentenyl ester which is useful as a reactive coalescent.

Low odor reactive coalescent

Compounds useful as reactive coalescents and methods of improving the stability of reactive coalescents are disclosed. A process for the preparation of low molecular weight polymers which are also useful as reactive coalescents is also disclosed.

Reactive coalescents

A process for reducing the amount of unwanted di(meth)acrylate produced during the distillation of hydroxyalkyl acrylates or hydroxyalkyl methacrylates.

Distillation process

Novel 3-pyridylmethyl N-(4-substituted-phenyl)thiocarbamates are disclosed. These compounds are useful as single-dose rodenticides, which have high bait acceptance.

3-Pyridylmethylthiocarbamates

This invention relates to novel phosphoramidates of the formula: ##STR1## wherein R.sup.1 is hydrogen, alkyl, cycloalkyl, or optionally substituted aralkyl, aryl, pyridyl, pyridylmethyl, pyridylethyl or pyrazinyl;

Nematocidal phosphoramidates

Novel 3-pyridylmethyl N-(4-substituted-phenyl)thiocarbamates are disclosed. These compounds are useful as single-dose rodenticides, which have high baitacceptance.

This invention relates to novel anthelmintic compositions containing as the essential active ingredient, a compound of the formula: ##STR1## wherein R.sup.1 is cylcoalkyl, or optionally substituted aralkyl, aryl, pyridyl, or pyrazinyl;

Anthelmintic phosphonamidate and phosphoramidate compositions and

This invention relates to novel phosphoramidates of the formula: ##STR1## wherein R.sup.1 is (C.sub.6 -C.sub.10) aryl optionally substituted with alkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, dialkylamino, haloalkyl, hydroxyalkyl, cyano, nitro, hydroxy, or halogen;

Growing community of inventors

Levittown, PA, United States of America

William D Weir