Abraxis, Inc.

Tnemec Company Inc.

Inemec Company, Inc.

Perry Kilpatrick

Henry Lomasney

Shirish Pandit

Fernando Manuel Rubio

Melissa Tuchscherer

Richard Slawecki

The present invention provides a kit and a method of testing for carbamates in amine cured epoxies. The method and kit are based on the use of an enzyme that is inhibited by carbamates. A specific embodiment of the kit includes acetylthiocholine (ATC), dithio-bis (2-nitrobenzoic acid) (DTNB), and acetyl-cholinesterase (ACh-E). In the corresponding method embodiment, the method comprises the steps of collecting carbamates from the epoxy, adding the collected carbamates to a solution, adding acetyl-cholinesterase (ACh-E) to the solution, adding acetylthiocholine (ATC) to the solution, adding dithio-bis (2-nitrobenzoic acid) (DTNB) to the solution, and ultimately measuring the intensity of the yellow color of the solution.

Method and kit for testing carbamates in amine-cured epoxy materials

A method for controlling uniformity of applied film thickness of clear protective coatings by means of a color-dissipatable dye additive which dissipates within a reasonable timeframe, generally from hours to a few days, leaving the applied film with no evidence of its use during the application phase. The color additives temporarily impart color to an otherwise clear coating, and subsequently dissipate over a short period of time. An embodiment of this technology includes the addition of a compatibilizer carrier solution to increase the ease of measuring the dye for addition to the clear coating.

Method for controlling wet film thickness of clear coatings by means of color-dissipating dye

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Kansas City, MO, United States of America

Perry Kilpatrick