Method for removing polymer films in the manufacture of aqueous compositions containing anionic amphiphilic polymers
AssigneeThe Procter & Gamble Company
InventorStanley Pohl
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Abstract
This invention relates to a method to facilitate the removal of adherent polymeric films from a hard surface occasioned by the evaporation of solvent from compositions containing an anionic amphiphilic polymer, the method comprising incorporating a phosphate ester surfactant into the compositions, and washing the film from the surface to which it adheres.
Claims24
A method of cleaning a surface on to which a polymeric film of an anionic amphiphilic polymer has formed upon evaporation of solvent from an aqueous composition containing said polymer, the method comprising:
- (a) incorporating a phosphate ester surfactant in said compositions during its preparation, and
- (b) washing the hard surface with a cleaning composition to substantially remove said polymeric film.
A method of cleaning a stainless surface used in the manufacture, transfer and storage of aqueous acidic compositions containing an anionic amphiphilic polymer and an oxidizing agent and to which surface said polymer has formed an adherent film, the method comprising
- (a) incorporating a phosphate ester surfactant of the formula I
- 3
- wherein R, R1 and R2 may be hydrogen, an alkyl of from 1 to about 22 carbons, or an alkoxylated alkyl of from 1 to about 22 carbons, and having from about 1 to about 25 moles ethylene oxide, with the proviso that at least one of R, R1 and R2 is an alkyl or alkoxylated alkyl as previously defined but having at least 6 alkyl carbons in said alkyl or alkoxylated alkyl group, and
- (b) washing the metal surface with a cleaning composition to substantially remove said film.
A developer composition comprising on a weight basis by weight of the composition:
- (a) from about 1 to about 15% of a hydrogen peroxide oxidizing agent;
- (b) from about 0.1 to 15% by weight of a phosphate ester surfactant, (c) from about 0.1 to about 10% of an anionic amphiphilic polymer;
- and
- (c) water, said composition having an acidic pH, whereby polymeric films formed upon evaporation of said composition are more easily removed from a surface to which the film adheres.
Dependencies are inferred from the claim text.