Clear or translucent aqueous polyquaternary ammonium fabric softener compositions containing low solvent

• US 7,018,974 B2
• Filed: 09/16/2004
• Issued: 03/28/2006
• Est. Priority Date: 07/06/1999
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Frankenbach, Gayle Marie, Sivik, Mark Robert, Declercq, Marc Johan, Demeyere, Hugo Jean Marie, Trinh, Toan, Wahl, Errol Hoffman, Baker, Ellen Schmidt, Murphy, Ruth Anne
• Primary Examiner(s): Hardee, John R.
• Application Number:
  US10/942,592
• Publication Number:
  US 20050032669A1
• Time in Patent Office: 558 Days
• Field of Search: 510/522, 510/527
• US Class Current: 510/504
• CPC Class Codes: C11D 1/525 Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain two or more hydroxy groups per alkyl group, e.g. R3 being a reducing sugar rest
• CPC Class Codes: C11D 1/526 Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 are polyalkoxylated
• CPC Class Codes: C11D 1/662 Carbohydrates or derivatives
• CPC Class Codes: C11D 1/667 Neutral esters, e.g. sorbitan esters
• CPC Class Codes: C11D 1/835 Mixtures of non-ionic with cationic compounds
• CPC Class Codes: C11D 17/0026 Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
• CPC Class Codes: C11D 3/0015 liquid
• CPC Class Codes: C11D 3/3723 Polyamines or polyalkyleneimines
• CPC Class Codes: C11D 3/43 Solvents

Abstract

Clear/translucent formulations comprise polyquaternary ammonium actives with lower, or no, solvent levels except the solvent which is normally present in the polyquaternary raw material stocks by choosing highly efficient principal solvents within a specific Clog P range, employing higher levels of polyquaternary ammonium actives, and/or augmenting the bilayer with surfactants and/or polar oils. Compositions with lowered solvent levels have at or below about 5% by volume of secondary dispersed phases, preferably below about 3% by volume of secondary dispersed phases, and more preferably below about 1% by volume of secondary dispersed phases. The most preferred compositions are essentially free of secondary dispersed phases. High-speed centrifugation easily and quickly reveals the % volume of secondary phase(s).

Claims

1. A clear or translucent liquid fabric softener composition comprising:

A. from about 1% to about 80% by weight of the composition, of a polyquaternary ammonium fabric softener active which either has a phase transition temperature in the presence of less than about 5% organic solvent or water of less than about 50°

C. or which has no significant endothermic phase transition in the region −

50°

C. to 100°

C., said active being in a bilayer;

B. a bilayer modifier comprising a nonionic surfactant containing from about 6 to about 22 carbon atoms in a hydrophobic chain ethoxylated with from about 2 to about ≦

50 ethoxy groups.

C. an additional softener active, wherein said additional softener active has a single quaternary moiety and two long hydrophobic moieties.

2. The composition of claim 1, wherein there is less than about 3% by volume of a secondary dispersed phase.

3. The composition of claim 1, wherein there is less than about 1% by volume of a secondary dispersed phase.

4. The composition of claim 1, wherein said composition is essentially free of a secondary dispersed phase.

5. The composition of claim 1, wherein said polyquaternary ammonium fabric softener active has a phase transition temperature in the presence of less than about 5% organic solvent or water of less than about 35°

C. and is present at a level of from about 5% to about 75% by weight of the composition; and

further comprising a principal solvent having a ClogP of from about −

2.0 to about 2.6 at a level of at least about 0.25% and less than about 13.5% by weight of the composition.

6. The composition of claim 1, wherein said polyquaternary ammonium salt has a phase transition temperature in the presence of less than about 5% organic solvent or water of less than about 20°

C. and is present at a level of from about 15% to about 70% by weight of the composition; and

further comprising a principal solvent having a ClogP of from about −

1.7 to about 1.6 at a level of at least about 025% by weight of the composition and less than about 10% by weight of the composition.

7. The composition of claim 1, wherein said polyquaternary ammonium salt has a phase transition temperature in the presence of less than about 5% organic solvent or water of less than about 10°

C. and is present at a level of from about 19% to about 65% by weight of the composition; and

further comprising a principal solvent having a ClogP at from about −

1.0 to about 1.0 at a level of at least about 0.5% by weight of the composition and less than about 7.5% by weight of the composition.