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Epoxy Novalac Opaque Coating

IP.com Disclosure Number: IPCOM000095067D
Original Publication Date: 1965-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Preiss, DM: AUTHOR [+3]

Abstract

The formulation given below is for a coating material possessing the following qualities. High bond strength to metal and glue silver emulsions, freedom from bloom experienced with previous coating materials, high opacity, good wetting characteristics on glue silver emulsions and glass, and excellent ablation resistance at high temperatures are realized. FORMULATION Part A Material % Composition by Weight Epoxy Novolac DEN 438 (Dow Chemical) 34.3 Black Iron Oxide (Fisher #1-119) 34.3 Methyl Ethyl Ketone 14.2 Methyl Isobutyl Ketone 17.2 100.0.

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Epoxy Novalac Opaque Coating

The formulation given below is for a coating material possessing the following qualities. High bond strength to metal and glue silver emulsions, freedom from bloom experienced with previous coating materials, high opacity, good wetting characteristics on glue silver emulsions and glass, and excellent ablation resistance at high temperatures are realized.

FORMULATION Part A
Material % Composition by Weight Epoxy Novolac DEN 438 (Dow Chemical) 34.3 Black Iron Oxide (Fisher #1-119) 34.3 Methyl Ethyl Ketone 14.2
Methyl Isobutyl Ketone 17.2 100.0.

The ingredients are mixed in a ball mill for 48 hours at 120 rpm and stored in a sealed container until used. Part B Triethylene Tetramine

Mix 20 grams of A with 1.17 grams of B. The material can be brushed or sprayed on a pattern. After applying, allow to dry one hour at room temperature followed by one hour at 150 degrees F, then four hours at 330 degrees F.

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