Cleaning composition and its method of use
AssigneeThe Drackett Company
InventorsRichard S. Hutchings, Carey B. Bottom
Life of this patent
Estimating the term…
Abstract
Treatment of water-containing reservoirs with a cleaning composition including a water-dissipatable polyester polymer, the polyester polymer concentration in the reservoir being in an amount effective to capture heavy metal ions, thereby inhibiting staining. In a preferred embodiment, the polyester complexes a perfume, the perfume being released in dilute solution as in the reservoir, whereby a fragrance bloom is provided to the environment.
Claims18
A method of treating a water-containing reservoir, the water in the reservoir containing a staining concentration of heavy metal ions, the method comprising the step of administering to the reservoir a water-dissipatable polyester polymer which is the reaction product of (a) a difunctional dicarboxylic acid, (b) a difunctional sulfomonomer, and (c) a glycol or a glycol and diamine mixture, the polyester having an inherent viscosity of at least 0.1, the polyester in the reservoir being in a concentration effective to capture said heavy metal ions, whereby the staining of the reservoir is inhibited.
A method of treating a water-containing reservoir with a cleaning composition, the water in the reservoir containing a staining concentration of one or more heavy metal ions, the method comprising the step of administering to the reservoir a cleansing amount of said cleaning composition, as measured in the reservoir, the cleaning composition containing in aqueous dispersion from about 0.05 to about 8% by weight of a water-dissipatable polyester polymer which is the reaction product of (a) a difunctional dicarboxylic acid, (b) a difunctional sulfomonomer, and (c) a glycol or a glycol and diamine mixture, the polyester having an inherent viscosity of at least 0.1, the polyester in the reservoir being in a concentration effective to capture said heavy metal ions, whereby the staining of the reservoir is inhibited.
The method of claim 6 wherein the cleaning composition administered to the reservoir is in an amount effective to provide a polyester concentration in the reservoir of from about 40 ppb to about 100 ppm.
A method of treating a reservoir with a cleaning composition, the water in the reservoir containing a staining concentration of one or more heavy metal ions, the method comprising the step of administering to the reservoir a cleansing amount of said cleaning composition, as measured in the reservoir, the cleaning composition containing in aqueous dispersion a water-dissipatable polyester polymer which is the reaction product of (a) a difunctional dicarboxylic acid, (b) a difunctional sulfomonomer, and (c) a glycol or a glycol and diamine mixture, the polyester having an inherent viscosity of at least 0.1 and a molecular weight of from about 10,000 to about 25,000, said polyester sequestering a perfume in the cleaning composition, the polyester concentration in the reservoir being such that the perfume is released from the polyester, the polyester then being available at an effective concentration level to capture said heavy metal ions, whereby the staining of the reservoir is inhibited and whereby a portion of the perfume provides a fragrance to atmosphere.
Dependencies are inferred from the claim text.