Curable film-forming compositions containing lithium silicates as corrosion inhibitors and multilayer coated metal substrates
A technology for corrosion-inhibiting components, metal substrates, used in silicates, anti-corrosion coatings, alkali metal silicates, etc.
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Examples
Embodiment 1-4
[0189] Coating Examples 1-4 were prepared as follows:
[0190]For Part A of each example, all materials were weighed into a suitable container and mixed thoroughly using an air motor and mixing blade. For Part B of each example, all materials except Silquest A-187 were weighed and placed into glass jars. An amount of dispersion medium equal to about twice the total weight of the component materials was then added to each tank. The jars were sealed with lids and placed in a Lau dispersion apparatus for a 3 hour dispersion period. All final dispersions had a Hegman gauge reading greater than 7. After the pigment dispersion process is complete, add Silquest A-187 to the Part B mixture. The final Part B mixture is then mixed thoroughly. Prior to coating application, the respective proportions of each Total Component A and Total Component B shown in Table 2 were mixed together, mixed well, and given an induction time of 30 to 60 minutes prior to coating.
[0191] The coatings ...
Embodiment 7-9
[0243] Coating Examples 7-9 were prepared as follows:
[0244] For Part A of each example, all materials were weighed into a suitable container and mixed thoroughly using an air motor and mixing blade. For Part B of each example, all materials except Silquest A-187 were weighed and placed in glass jars. Dispersion medium was then added to each tank in an amount approximately equal to twice the total weight of the component materials. The jars were sealed with lids and placed in a Lau dispersion apparatus for 1.5 hours of dispersion. All final dispersions had a Hegman gauge reading greater than 7. After the pigment dispersion process was complete, Silquest A-187 was added to the Part B mixture. The final Part B mixture is then mixed thoroughly. Prior to coating application, each Total Component A and Total Component B were blended together in the respective ratios shown in Table 6, mixed thoroughly, and given an induction time of 30 to 60 minutes prior to coating.
[0245]...
Embodiment 10-11
[0254] Coating Examples 10-11 were prepared as follows:
[0255] For Part A of each example, all materials were weighed and placed in glass jars. Dispersion medium was then added to each tank in an amount equal to about half the total weight of the component materials. For Part B of each example, all materials except Silquest A-187 were weighed and placed in glass jars. Dispersion medium was then added to each tank in an amount approximately equal to twice the total weight of the component materials. The jars of each component were sealed with lids and placed in a Lau dispersing apparatus for a 3.0 hour dispersion period. All final dispersions had a Hegman gauge reading greater than 7. After the pigment dispersion process was complete, Silquest A-187 was added to the Part B mixture. The final Part B mixture is then mixed thoroughly. Prior to coating application, each Total Component A, each Total Component B, and each Diluent Component were blended together in the respect...
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Abstract
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