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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/sup 0/C. The polyelectrolyte or the precoat is present in about 0.5 to 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/sup 0/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 x 10/sup 5/ gave improved ductility modulus effect.

Inventors:
; ;
Issue Date:
Research Org.:
Brookhaven National Lab., Upton, NY (USA)
OSTI Identifier:
6738864
Application Number:
ON: DE87007263
Assignee:
Dept. of Energy
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Other Information: Paper copy only, copy does not permit microfiche production
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON STEELS; SURFACE COATING; COATINGS; DEPOSITION; DUCTILITY; METALS; ACRYLIC ACID; BONDING; COMPLEXES; FLEXURAL STRENGTH; MOLECULAR WEIGHT; PMMA; POLYMERS; POLYURETHANES; SOLID ELECTROLYTES; ZINC PHOSPHATES; ALLOYS; CARBOXYLIC ACIDS; ELECTROLYTES; ELEMENTS; ESTERS; FABRICATION; IRON ALLOYS; IRON BASE ALLOYS; JOINING; MATERIALS; MECHANICAL PROPERTIES; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHOSPHATES; PHOSPHORUS COMPOUNDS; PLASTICS; POLYACRYLATES; POLYAMIDES; POLYVINYLS; STEELS; SYNTHETIC MATERIALS; TENSILE PROPERTIES; ZINC COMPOUNDS; 360000* - Materials

Citation Formats

Sugama, Toshifumi, 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., 1985. Web.
Sugama, Toshifumi, Kukacka, L E, & Carciello, N R. Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate. United States.
Sugama, Toshifumi, 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_6738864,
title = {Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate},
author = {Sugama, Toshifumi 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/sup 0/C. The polyelectrolyte or the precoat is present in about 0.5 to 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/sup 0/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 x 10/sup 5/ gave improved ductility modulus effect.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {11}
}