Wet wipes containing a mono alkyl phosphate
AssigneeKimberly-Clark Worldwide, Inc.
InventorsDouglas Bryan Cole, Katherine Denise Stahl
Life of this patent
Estimating the term…
Abstract
Wet wipes impregnated with a solution which includes a mono alkyl phosphate are described. In particular, the solution in the wet wipes includes a phosphate ester surfactant which includes a mono alkyl phosphate having the following structural formula: wherein R represents a saturated or unsaturated hydrocarbon group having an average of from 8 to 22 carbon atoms, x represents a number of 0 to 20, and each of Y and Z represents hydrogen, an alkali metal, ammonium or an alkanol amine. Such wet wipes have improved tactile properties and cleaning efficacy without excessive skin irritation or foaming when compared to conventional wet wipes.
Claims53
A wet wipe comprising a fibrous sheet material and a non-oily aqueous-based solution which includes from about 0.01 to about 10 weight percent based on a total weight of said solution of a phosphate ester surfactant which comprises:
- a) a mono alkyl phosphate having the following structural formula:
- and
- b) a dialkyl phosphate having the following structural formula:
- wherein R represents a saturated or unsaturated hydrocarbon group having an average of from 8 to 22 carbon atoms, x represents a number of 0 to 20, and each of Y and Z represents hydrogen, an alkali metal, ammonium or an alkanol amine and wherein a ratio of the mono alkyl phosphate to the dialkyl phosphate is between about 50:50 and about 99:1.
A wet wipe comprising a fibrous sheet material and a non-oily aqueous-based solution which includes from about 0.01 to about 10 weight percent based on a total weight of said solution of a phosphate ester surfactant which comprises:
- a) a mono alkyl phosphate having the following structural formula:
- and
- b) a dialkyl phosphate having the following structural formula:
- wherein R represents a saturated or unsaturated hydrocarbon group having an average of from 8 to 22 carbon atoms, x represents a number of 1 to 20, and each of Y and Z represents hydrogen, an alkali metal, ammonium or an alkanol amine and wherein a ratio of the mono alkyl phosphate to the dialkyl phosphate is between about 50:50 to about 99:1.
A wet wipe comprising a fibrous sheet material and an aqueous-based solution which includes from about 0.01 to about 10 weight percent based on a total weight of said solution of a phosphate ester surfactant which comprises:
- a) a mono alkyl phosphate having the following structural formula:
- and
- b) a dialkyl phosphate having the following structural formula:
- wherein R represents a saturated or unsaturated hydrocarbon group having an average of from 8 to 22 carbon atoms, x represents a number of 1 to 4, and each of Y and Z represents hydrogen, an alkali metal, ammonium or an alkanol amine and wherein a ratio of the mono alkyl phosphate to the dialkyl phosphate is between about 50:50 and about 99:1.
Dependencies are inferred from the claim text.