Cleaning compositions for solid surfaces – auxiliary compositions – Auxiliary compositions for cleaning – or processes of preparing – Textile softening or antistatic composition
Patent
1999-03-18
2000-07-04
Hardee, John R.
Cleaning compositions for solid surfaces, auxiliary compositions
Auxiliary compositions for cleaning, or processes of preparing
Textile softening or antistatic composition
510504, 510521, C11D 1645
Patent
active
06083899&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to fabric softener compositions wherein the performance of the fabric softener active is enhanced by the presence of a cationic charge booster. The present invention also relates to methods for providing enhanced fabric conditioning benefits to fabric by contacting said fabric with a composition comprising a quaternary ammonium fabric softener active and one or more cationic charge boosting compounds.
BACKGROUND OF THE INVENTION
Consumers have come to expect clean, freshened, static-free, cling-free fabric after the laundry cycle. Fabric softeners, whether added at the laundry rinse stage or at the automatic dryer stage, have become a means for providing fabric, especially clothing, with direct enhancement of these properties. One important class of fabric softener actives comprises Diester and Diamide Quaternary Ammonium (DEQA) compounds which typically can comprise mono-, di-, or tri-functional amines (e.g. diethanol amine) which are converted to the corresponding esters or amides then fully or partially quaternized. Manipulation of the acyl moiety combined with the mono-, di-, or tri-functional amines have led to DEQA's which are effective fabric softener active suitable for use in dryer added or rinse added fabric softener compositions. However, some cationic fabric softening actives perform in some ways less well than others.
Accordingly, there remains a need in the art for cationic fabric softener compositions which have an increased or "boosted" fabric softening capacity. In addition, fabric softener compositions which comprise fabric softener actives having suitable properties other than sufficient cationic charge density, need a means to boost the overall charge density thereby providing to the consumer a better fabric care benefit.
BACKGROUND ART
The following relate to fabric softening and fabric enhancement. U.S. Pat. No. 3,915,867, Kang et al., issued Oct. 28, 1975; U.S. Pat. No. 3,904,533, Neiditch et al. issued Sep. 9, 1975; U.S. Pat. No. 4,401,578, Verbruggen, issued Aug. 30, 1983; U.S. Pat. No. 4,767,547, Straathof et al., issued Aug. 30, 1988; U.S. Pat. No. 4,808,321, Walley, issued Feb. 28, 1989; U.S. Pat. No. 5,066,414, Chang, issued Nov. 19, 1991; Japanese Patent Application 63-194316, filed Nov. 21, 1988; Japanese Laid Open Publication 1,249,129, filed Oct. 4, 1989; Japanese Patent Application 4-333,667, published Nov. 20, 1992; EP 243,735; EP 336,267-A with a priority of Apr. 2, 1988; European Patent Application 243,735, Nusslein et al., published Nov. 4, 1987; European Patent Application 409,502, Tandela et al., published Jan. 23, 1991; European Patent Application 240,727, Nusslein et al., priority date of Mar. 12, 1986; and WO 89/11522-A (DE 3,818,061-A; EP-346,634-A), with a priority of May 27, 1988.
SUMMARY OF THE INVENTION
It has now been surprisingly discovered that the addition of certain cationic charge enhancing agents will sufficiently increase the performance of cationic fabric softener actives having diminished or insufficient charge density, to a level which allows the low charge density active to be used in fabric softening formulations. In addition, it has been surprisingly found that when cationic charge boosters are used in conjunction with Diester or Diamide Quaternary Ammonium (DEQA) compounds, these preferred fabric softening actives are enhanced even further.
The cationic charge enhancing agents of the present invention have the effect of increasing the net cationic charge concentration independent of the intrinsic properties of the softener active. Therefore, the formulator may combine fabric softener actives having low cationic charge capacity, but which have other desirable properties inter alia good dispensability, low melting point, with cationic charge boosters thereby obtaining a composition which overcomes the lack of cationic charge density of the fabric softener active.
The first aspect of the present invention relates to fabric softener compositions comprising: 5% to about 60%, more prefera
REFERENCES:
patent: 3904533 (1975-09-01), Neiditch et al.
patent: 3915867 (1975-10-01), Kang et al.
patent: 4399045 (1983-08-01), Burns
patent: 4401578 (1983-08-01), Verbruggen
patent: 4767547 (1988-08-01), Straathof et al.
patent: 4772404 (1988-09-01), Fox et al.
patent: 4808321 (1989-02-01), Walley
patent: 5066414 (1991-11-01), Chang
patent: 5460736 (1995-10-01), Trinh et al.
patent: 5674832 (1997-10-01), Keys
patent: 5958858 (1999-09-01), Bettiol et al.
Baker Ellen Schmidt
Hartman Frederick Anthony
Sivik Mark Robert
Taylor Lucille Florence
Wahl Errol Hoffman
Echler, Sr. Richard S.
Hardee John R.
Rasser Jacobus C.
The Procter & Gamble & Company
Zerby Kim W.
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