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Nontoxic Solvent for Coating Composition

IP.com Disclosure Number: IPCOM000078447D
Original Publication Date: 1973-Jan-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Adams, GM: AUTHOR [+5]

Abstract

A nontoxic solvent for use with synthetic resin material, particularly epoxy-phenolic resins, utilizes ethylene glycol monoethylether acetate as a base. This acetate may be modified in one embodiment by gamma-butyrolactone, in the range of about four parts by volume acetate and one part by volume gamma-butyrolactone. A still further modification utilizes a nontoxic substituted glycol, ethylene glycol monohexyl-ether, in a ratio of 70-80% acetate, 15-25% gamma-butyrolactone and up to 10%, preferably 5% of the glycol.

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Nontoxic Solvent for Coating Composition

A nontoxic solvent for use with synthetic resin material, particularly epoxy- phenolic resins, utilizes ethylene glycol monoethylether acetate as a base. This acetate may be modified in one embodiment by gamma-butyrolactone, in the range of about four parts by volume acetate and one part by volume gamma- butyrolactone. A still further modification utilizes a nontoxic substituted glycol, ethylene glycol monohexyl-ether, in a ratio of 70-80% acetate, 15-25% gamma- butyrolactone and up to 10%, preferably 5% of the glycol.

A further modification utilizes a combination of ethylene glycol monoether acetate in a volume percent of 15-75%, xlyene between 0-35%, and up to 80 percent of a high boiling point aromatic solvent, with a boiling range between 300-420 degrees F, a mixed analine point (ASTMD611) between 13.5 and 18.5 and kauri-butanol value (ASTMD1133) 87-93, or narrower boiling fractions possessing these characteristics. A preferred embodiment utilizes approximately 40% acetate, 10% xylene, and 50% aromatic solvent.

Toluene or ethyl benzene can be substituted for the xylene. Various coloring, hardening, and/or magnetic pigments may be added to the basic synthetic resin base, as desired.

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