The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1982
Filed:
Oct. 02, 1980
Applicant:
Inventor:
Nicholas T Castellucci, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ; C08J / ; C25D / ;
U.S. Cl.
CPC ...
428418 ; 2041 / ; 427386 ; 4273882 ; 4273883 ; 4273884 ; 428416 ; 4284258 ; 428458 ; 428460 ; 528106 ; 528107 ; 528121 ; 528220 ; 528226 ; 528229 ; 528250 ; 523402 ; 523414 ; 523451 ; 525153 ; 525523 ;
Abstract
Novel compositions of matter comprising the reaction product of beta-diketones and epoxy resins blended with monomeric or polymeric phosphonium salts are hereby provided. The beta-diketones useful herein are those which enolize in amounts that render them sufficiently acidic and reactable with epoxy groups of the resin. The novel reaction products can be dispersed in water to form pretreatment agents and they can be formulated with curing agents to form coating compositions. Ferrous metals treated with the compositions of this invention exhibit excellent corrosion resistance properties.