Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1993-11-08
1995-03-14
Lieberman, Paul
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2214, 134 3, 134 40, 134 41, 252146, B08B 902, C23G 106
Patent
active
053973984
ABSTRACT:
The present invention relates to a composition and method for opening clogged drains. Specifically, the liquid drain opener composition of the present invention comprises about 70%-93% by weight sulfuric acid; about 1%-23% by weight water; about 0.01%-5% by weight of at least one corrosion inhibiting agent; and, about 0.01%-28.99% by weight of at least one surfactant. The drain opener composition may also contain mineral oil and inert filler materials, such as salt. The present invention is also directed to a method of opening clogged drains comprising the steps of contacting a clogged drain with the liquid drain opener composition of the present invention; the composition applying a protective coating to metal surfaces of the drain to substantially prevent corrosion of the metal; the composition applying a protective coating to concrete surfaces of the drain to substantially prevent erosion of the concrete; and, flushing the dissolved clog with water.
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Manolas John A.
Van Vlahakis Eftichios
Douyon Lorna M.
Lieberman Paul
Van Vlahakis Eftichios
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