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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.degree. 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.degree. 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.

Inventors:
 [1];  [2];  [3]
  1. Mastic Beach, NY
  2. Port Jefferson, NY
  3. Bellport, NY
Issue Date:
Research Org.:
ASSOC UNIVERSITIES INC
OSTI Identifier:
866221
Patent Number(s):
4659395
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ductile; polyelectrolyte; macromolecule-complexed; zinc; phosphate; conversion; crystal; pre-coatings; topcoatings; embodying; laminate; relates; precoat; method; coatings; steel; non-ferrous; metals; comprises; applying; phosphating; coating; solution; modified; solid; selected; polyacrylic; acid; paa; polymethacrylic; pma; polyitaconic; pia; poly-l-glutamic; contacting; resin; period; 20; hours; 80; degree; 5-5; weight; total; composition; application; base; dried; 150; desiccate; formed; polyurethane; applied; elastomeric; topcoating; polyfuran; glassy; found; molecular; times; 10; improved; ductility; modulus; effect; polyacrylic acid; conversion crystal; zinc phosphate; molecular weight; comprises applying; acrylic acid; polyitaconic acid; phosphate conversion; furan resin; methacrylic acid; non-ferrous metal; /428/148/

Citation Formats

Sugama, Toshifumi, Kukacka, Lawrence E, and Carciello, Neal R. Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate. United States: N. p., 1987. Web.
Sugama, Toshifumi, Kukacka, Lawrence E, & Carciello, Neal R. Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate. United States.
Sugama, Toshifumi, Kukacka, Lawrence E, and Carciello, Neal R. Thu . "Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate". United States. https://www.osti.gov/servlets/purl/866221.
@article{osti_866221,
title = {Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate},
author = {Sugama, Toshifumi and Kukacka, Lawrence E and Carciello, Neal 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.degree. 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.degree. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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