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Title: Coating composition for inhibiting corrosion of metal substrates

Abstract

The corrosion-inhibiting coating composition for application to a metal substrate is described comprising: (a) from about 55% to about 78.5%, by weight of nonvolatile material, of an epoxy resin having a molecular weight of about 15,000 to about 80,000; (b) from about 20% to about 40%, by weight of nonvolatile material, of a phenolic resin; (c) from about 1.5% to about 5%, by weight of nonvolatile material, of an organic corrosion inhibitor having the structural formula: wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino, and carbamoyl, and wherein R[sub 1], R[sub 2], R[sub 3] and R[sub 4] are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R[sub 1], R[sub 2], R[sub 3] and R[sub 4] groups is a carboxyl group; and (d) a sufficient amount of a nonaqueous carrier such that the corrosion-inhibiting composition includes from about 20% to about 40%, by weight of the total composition, of nonvolatile material.

Inventors:
Publication Date:
OSTI Identifier:
6347754
Patent Number(s):
US 5223025; A
Application Number:
PPN: US 7-753930
Assignee:
Dexter Corp., Windsor Locks, CT (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 3 Sep 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALS; CORROSION PROTECTION; PROTECTIVE COATINGS; CHEMICAL COMPOSITION; CORROSION INHIBITORS; EPOXIDES; MOLECULAR WEIGHT; RESINS; COATINGS; ELEMENTS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS; 360105* - Metals & Alloys- Corrosion & Erosion

Citation Formats

Seibel, L P. Coating composition for inhibiting corrosion of metal substrates. United States: N. p., 1993. Web.
Seibel, L P. Coating composition for inhibiting corrosion of metal substrates. United States.
Seibel, L P. Tue . "Coating composition for inhibiting corrosion of metal substrates". United States.
@article{osti_6347754,
title = {Coating composition for inhibiting corrosion of metal substrates},
author = {Seibel, L P},
abstractNote = {The corrosion-inhibiting coating composition for application to a metal substrate is described comprising: (a) from about 55% to about 78.5%, by weight of nonvolatile material, of an epoxy resin having a molecular weight of about 15,000 to about 80,000; (b) from about 20% to about 40%, by weight of nonvolatile material, of a phenolic resin; (c) from about 1.5% to about 5%, by weight of nonvolatile material, of an organic corrosion inhibitor having the structural formula: wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino, and carbamoyl, and wherein R[sub 1], R[sub 2], R[sub 3] and R[sub 4] are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R[sub 1], R[sub 2], R[sub 3] and R[sub 4] groups is a carboxyl group; and (d) a sufficient amount of a nonaqueous carrier such that the corrosion-inhibiting composition includes from about 20% to about 40%, by weight of the total composition, of nonvolatile material.},
doi = {},
url = {https://www.osti.gov/biblio/6347754}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {6}
}