A formulation using 5000 molecular weight methoxypolyethylene glycol is also included in Table XXXII for comparison purposes--see formulation MB-7. Note that the amount of 2,3-butanediol has been increased in this one formulation to provide for maximum lubricity characteristics with a methoxypolyethylene glycol type system, in order to allow the best possible comparisons. Overall, both the triethylene glycol and methoxypolyethylene glycol formulations, MB-5 and MB-7, showed essentially equivalent lubricity and oil removal test results. In addition, Table XXXII includes a commercially available Window Glass and Chrome Cleaner, WINDEX, which shows somewhat greater overall drag properties during the wiping from wet to dry and dry stages and shows considerably more residual oil contamination in comparison to the triethylene glycol and methoxypolyethylene glycol formulations MB-5 and MB-7.
Another important development relating to my copening application, Ser. No. 885,311 for water based window, glass and chrome cleaner composition has been made. This involves the use of triethylene glycol in place of the considerably higher molecular weight poly or methoxypolyethylene glycols of the prior work.
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|US3342740 *||Jun 7, 1965||Sep 19, 1967||Armour & Co||Window cleaner|
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|US3839234 *||Jan 26, 1973||Oct 1, 1974||Roscoe C||Multi-purpose cleaning concentrate|
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In my copending U.S. Patent Application, Ser. No. 885,311, now U.S. Pat. No. 4,213,873 of which this application is a continuation-in-part, the use of poly and/or methoxpolyethylene glycols have been shown to be of use as effective additives in water based window glass and chrome cleaner compositions. When employed in properly compounded formulations, these glycol additives have been found to provide specific advantages over competitive cleaners.
It has been found, for example, that the ammonium carbonate or ammonium bicarbonate can be added in small amounts to a variety of window, glass and chrome cleaners presently on the market and show a significant increase in the overall lubricity of such products.