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Non-chrome passivation of steel

Title: Non-chrome passivation of steel.
Abstract: Chromate free treatments and compositions for applying a conversion or passivation coating to metal surfaces. Preferred compositions comprise a film forming latex polymer, fluoacid, phosphoric acid, and a polyoxyethylene/oxypropylene block copolymer. The requisite metal surfaces are contacted by the compositions and dried. Rinsing is optional. ...
USPTO Applicaton #: #20060042726

Related Patent Categories: Metal Treatment, Process Of Modifying Or Maintaining Internal Physical Structure (i.e., Microstructure) Or Chemical Properties Of Metal, Process Of Reactive Coating Of Metal And Process Of Chemical-heat Removing (e.g., Flame-cutting, Etc.) Or Burning Of Metal, Processes Of Coating Utilizing A Reactive Composition Which Reacts With Metal Substrate Or Composition Therefore, Liquid Reactive Coating Composition Utilized, Contains Solid Synthetic Polymer
The Patent Description & Claims data below is from USPTO Patent Application 20060042726, Non-chrome passivation of steel.

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stats Patent Info
Application #
US 20060042726 A1
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File Date
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International Class

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