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Title: Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate

Abstract

This invention relates to a precoat, laminate, and method for ductile coatings on steel and non-ferrous metals which comprises applying a zinc phosphating coating solution modified by a solid polyelectrolyte selected from polyacrylic acid (PAA), polymethacrylic acid (PMA), polyitaconic acid (PIA), and poly-L-glutamic acid. The contacting of the resin with the phosphating solution is made for a period of up to 20 hours at about 80 C. The polyelectrolyte or the precoat is present in about 0.5--5.0% by weight of the total precoat composition and after application, the precoat base is dried for up to 5 hours at about 150 C to desiccate. Also, a laminate may be formed where polyurethane (PU) is applied as an elastomeric topcoating or polyfuran resin is applied as a glassy topcoating. It has been found that the use of PAA at a molecular weight of about 2 [times] 10[sup 5] gave improved ductility modulus effect. 5 figs.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7249373
Patent Number(s):
4659395
Application Number:
PPN: US 6-795141
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Patent File Date: 5 Nov 1985
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COATINGS; DUCTILITY; COMPOSITE MATERIALS; CHEMICAL COATING; METALS; STEELS; ZINC PHOSPHATES; POLYURETHANES; ALLOYS; DEPOSITION; ELEMENTS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; MECHANICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHOSPHATES; PHOSPHORUS COMPOUNDS; PLASTICS; POLYAMIDES; POLYMERS; SURFACE COATING; SYNTHETIC MATERIALS; TENSILE PROPERTIES; ZINC COMPOUNDS; 360101* - Metals & Alloys- Preparation & Fabrication; 360601 - Other Materials- Preparation & Manufacture

Citation Formats

Sugama, T, Kukacka, L E, and Carciello, N R. Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate. United States: N. p., 1987. Web.
Sugama, T, Kukacka, L E, & Carciello, N R. Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate. United States.
Sugama, T, Kukacka, L E, and Carciello, N R. Tue . "Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate". United States.
@article{osti_7249373,
title = {Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate},
author = {Sugama, T and Kukacka, L E and Carciello, N R},
abstractNote = {This invention relates to a precoat, laminate, and method for ductile coatings on steel and non-ferrous metals which comprises applying a zinc phosphating coating solution modified by a solid polyelectrolyte selected from polyacrylic acid (PAA), polymethacrylic acid (PMA), polyitaconic acid (PIA), and poly-L-glutamic acid. The contacting of the resin with the phosphating solution is made for a period of up to 20 hours at about 80 C. The polyelectrolyte or the precoat is present in about 0.5--5.0% by weight of the total precoat composition and after application, the precoat base is dried for up to 5 hours at about 150 C to desiccate. Also, a laminate may be formed where polyurethane (PU) is applied as an elastomeric topcoating or polyfuran resin is applied as a glassy topcoating. It has been found that the use of PAA at a molecular weight of about 2 [times] 10[sup 5] gave improved ductility modulus effect. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {4}
}