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Title: Metal treatment

Abstract

A process is described for increasing the corrosion resistance of a metal object bearing a preexisting protective conversion coating, said process comprising steps of: (A) contacting the pre-existing coating with a composition having a pH from about 5 to about 12 and consisting essentially of: (1) water, (2) from 25-5,000 ppm of triazole molecules selected from the group consisting of aryl triazoles containing from 6 to about 10 carbon atoms and alkyl triazoles containing from 1 to about 6 carbon atoms, and, optionally, (3) at least partially substituted poly(vinylphenol) polymer or copolymer including substituents on at least some of the phenol rings: wherein each of R[sub 5] through R[sub 12] is selected from hydrogen, an alkyl, an aryl, an aryl, a hydroxy-alkyl, an amino-alkyl, a mercapto-alkyl, or a phospho-alkyl moiety, except that R[sub 12] can also be [minus]O[sup [minus]1] or [minus]OH and that at least one of R[sub 9] and R[sub 10] must include a polyhydroxy functionality resulting from the condensation of an amine or ammonia with a ketose, aldose, or other polyhydroxyl compound having from about 3 to about 8 carbon atoms, followed by reduction from imino to amino, and, optionally, (4) polar organic solvents; and (B) drying themore » object completion of step (A).« less

Inventors:
; ;
Publication Date:
OSTI Identifier:
6210042
Patent Number(s):
US 5226976; A
Application Number:
PPN: US 7-685355
Assignee:
Henkel Corp., Plymouth, PA (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 15 Apr 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALS; CORROSION RESISTANCE; SURFACE TREATMENTS; ALKYL RADICALS; ARYL RADICALS; CARBON; DRYING; HYDROXIDES; ORGANIC SOLVENTS; PH VALUE; PHENOLS; POLYMERS; PROTECTIVE COATINGS; REDUCTION; TRIAZOLES; AROMATICS; AZOLES; CHEMICAL REACTIONS; COATINGS; ELEMENTS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; RADICALS; SOLVENTS; 360101* - Metals & Alloys- Preparation & Fabrication; 360105 - Metals & Alloys- Corrosion & Erosion

Citation Formats

Carlson, R, Johnson, P M, and Pierce, J R. Metal treatment. United States: N. p., 1993. Web.
Carlson, R, Johnson, P M, & Pierce, J R. Metal treatment. United States.
Carlson, R, Johnson, P M, and Pierce, J R. 1993. "Metal treatment". United States.
@article{osti_6210042,
title = {Metal treatment},
author = {Carlson, R and Johnson, P M and Pierce, J R},
abstractNote = {A process is described for increasing the corrosion resistance of a metal object bearing a preexisting protective conversion coating, said process comprising steps of: (A) contacting the pre-existing coating with a composition having a pH from about 5 to about 12 and consisting essentially of: (1) water, (2) from 25-5,000 ppm of triazole molecules selected from the group consisting of aryl triazoles containing from 6 to about 10 carbon atoms and alkyl triazoles containing from 1 to about 6 carbon atoms, and, optionally, (3) at least partially substituted poly(vinylphenol) polymer or copolymer including substituents on at least some of the phenol rings: wherein each of R[sub 5] through R[sub 12] is selected from hydrogen, an alkyl, an aryl, an aryl, a hydroxy-alkyl, an amino-alkyl, a mercapto-alkyl, or a phospho-alkyl moiety, except that R[sub 12] can also be [minus]O[sup [minus]1] or [minus]OH and that at least one of R[sub 9] and R[sub 10] must include a polyhydroxy functionality resulting from the condensation of an amine or ammonia with a ketose, aldose, or other polyhydroxyl compound having from about 3 to about 8 carbon atoms, followed by reduction from imino to amino, and, optionally, (4) polar organic solvents; and (B) drying the object completion of step (A).},
doi = {},
url = {https://www.osti.gov/biblio/6210042}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 13 00:00:00 EDT 1993},
month = {Tue Jul 13 00:00:00 EDT 1993}
}