Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2005-02-15
2005-02-15
Griffin, Steven P. (Department: 1731)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S158000, C162S164600, C162S168100, C162S168200, C162S181200, C162S183000, C162S185000, C162S109000, C162S204000, C162S207000
Reexamination Certificate
active
06855229
ABSTRACT:
Disclosed is a composition for softening a wet laid cellulosic structure. A particularly preferred structure is an absorbent tissue. Further disclosed are tissue structures softened using the composition. The composition includes an effective amount of a softening active ingredient; a vehicle in which the softening active ingredient is dispersed; an electrolyte dissolved in the vehicle; and a bilayer disrupter. The electrolyte and the bilayer disrupter cooperate to cause the viscosity of the composition to be less than the viscosity of a dispersion of the softening active ingredient in the vehicle alone. Preferably, the softening active ingredient is a quaternary ammonium compound with the formula:in-line-formulae description="In-line Formulae" end="lead"?(R1)4-m—N+—[(CH2)n—Y—R3]mX−in-line-formulae description="In-line Formulae" end="tail"?the vehicle is water, the electrolyte is calcium chloride, and the bilayer disrupter is a nonionic surfactant. Also disclosed is a method of using the compound by adding it at a use concentration to the wet end of a papermaking process.
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Frankenbach Gayle Marie
Hamilton Amy Jo
McFarland James Robert
McKay David D.
Rice John Ernest
Griffin Steven P.
Hug Eric
Murphy Stephen T.
Patel Ken K.
The Procter & Gamble & Company
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