Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-03-12
2003-03-11
DelCotto, Gregory (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S329000, C510S330000, C510S340000, C510S499000, C510S500000, C510S503000, C510S504000
Reexamination Certificate
active
06531438
ABSTRACT:
FIELD OF THE INVENTION
The present application relates to rinse-added fabric care compositions which comprise one or more low molecular weight polyamines which provide enhanced fabric appearance benefits The low molecular weight polyamines of the present invention which mitigate fabric damage and improve fabric appearance are preferably modified polypropyleneimines having four backbone amino units.
BACKGROUND OF THE INVENTION
Formulators of rinse-added fabric care compositions include various ingredients. inter alia cationic softening actives, anti-static agents, dye transfer inhibitors, and bleach-damage mitigating agents, for the purpose of improving fabric appearance, fabric feel, fabric color and to extend the duration of fabric life. Ingredients which are added to these compositions must not only provide a benefit, but must be compatible with a variety of product forms, i.e. liquid dispersions, isotropic liquids including clear, colorless/translucent liquids which may include principal solvents inter alia 1,2-hexanediol, 2,2,4-trimethyl-1,3-pentanediol (TMPD).
Many adjunct ingredients which provide fabric enhancement benefits are highly fabric substantive and, therefore, once deposited on the fabric surface remain with the fabric thereby providing the intended benefit until chemically altered or until displaced by a more fabric substantive material. High molecular weight modified polyalkyleneimines have been used in rinse-added fabric care compositions to mitigate fabric damage. These highly fabric substantive ingredients are deposited onto fabric during the near neutral pH environment of the laundry rinse cycle. Once deposited they serve a variety of purposes depending upon the absolute structure of the polyalkyleneamine or polyalkyleneimine and whether the polymeric amine is modified (for example, ethoxylated).
Color integrity is an important aspect of fabric enhancement. When certain polyamines are deposited onto fabric they enhance color fidelity via various mechanisms. Other polyamines intercept peroxygen bleaching agents at the fabric surface.
Consumers use bleach-containing compositions when washing colored fabric as well as white fabric because the use of a bleaching material satisfies the consumers need to feel that the fabric has been “thoroughly cleaned”. Therefore, there is a long felt need to provide colored fabric with protection against the pejorative effects of laundry-added bleaching materials. In addition there is a need for materials which will be highly water soluble or water dispersible, while exhibiting a high degree of fabric substantivity. And there is also a need for a material which will provide a high level of fabric protection on an efficient per unit weight basis.
SUMMARY OF THE INVENTION
The present invention meets the aforementioned needs in that it has been surprisingly discovered that polyamines, preferably linear propyleneimines and 1,4-piperazines having at least one N-substituted 3-aminopropylene unit, and which have a backbone molecular weight, prior to any subsequent modification, of approximately 250 daltons, and which remain unmodified, or which are partially or fully modified, are suitable for use in rinse-added fabric care compositions to provide a wide array of fabric appearance benefits depending upon the type of substitution selected by the formulator inter alia mitigation of fabric damage via bleaching agents.
A first aspect of the present invention which relates to the issue of fabric color fidelity, are rinsed-added fabric enhancement compositions comprising:
a) from about 0.01%, preferably from about 0.75%, more preferably from 2%, to about 50%, preferably to about 35%, more preferably to about 20%, most preferably to about 15% by weight, of one or more modified polyamines, said polyamines selected from:
i) linear polyamines having the formula:
wherein each R is independently C
2
-C
6
linear alkylene, C
3
-C
6
branched alkylene, and mixtures thereof; R
1
is hydrogen, C
1
-C
12
alkyl, alkyleneoxy having the formula:
—(R
3
O)
m
—R
4
R
3
is C
2
-C
6
linear alkylene, C
3
-C
6
branched alkylene, or mixtures thereof, R
4
is hydrogen, C
1
-C
6
alkyl, or mixtures thereof, m is from 1 to 4; acyl having the formula:
wherein R
5
is C
1
-C
22
linear or branched alkyl, C
3
-C
22
linear or branched alkenyl, or mixtures thereof; hydroxy alkyl having the formula:
—(CH
2
)
y
(CHOH)
z
H
wherein y is from 1 to 5, z is from 1 to 3, provided y+z is less than or equal to 6; two R
1
units can be taken together to form a 5-7 member ring; and mixtures thereof; R
2
is hydrogen, R
1
, —RN(R
1
)
2
, and mixtures thereof; n is from 1 to 6;
ii) cyclic polyamines having the formula:
R—L—R
wherein L is a linking unit, said linking unit comprising a ring having at least 2 nitrogen atoms; R is hydrogen, —(CH
2
)
k
N(R
1
)
2
, and mixtures thereof, wherein each R
1
is hydrogen; C
1
-C
12
alkyl; alkyleneoxy having the formula:
—(R
3
O)
m
—R
4
R
3
is C
2
-C
6
linear alkylene, C
3
-C
6
branched alkylene, or mixtures thereof, R
4
is hydrogen, C
1
-C
6
alkyl, or mixtures thereof, m is from 1 to 4; acyl having the formula:
wherein R
5
is C
1
-C
22
linear or branched alkyl, C
3
-C
22
linear or branched alkenyl, or mixtures thereof; hydroxy alkyl having the formula:
—(CH
2
)
y
(CHOH)
z
H
wherein y is from 1 to 5, z is from 1 to 3, provided y+z is less than or equal to 6; two R
1
units can be taken together to form a 5-7 member ring;
k is from 3 to 12; and mixtures thereof;
iii) and mixtures thereof;
b) optionally from about 1%, preferably from about 10%, more preferably from about 20% to about 80%, preferably to about 60%, more preferably to about 45% by weight, of a fabric softening active;
c) optionally less than about 15% by weight, of a principal solvent, preferably said principal solvent has a C log P of from about 0.15 to about 1;
d) optionally from about 0.001% to about 90% by weight, of one or more dye fixing agents;
e) optionally from about 0.01% to about 50% by weight, of one or more cellulose reactive dye fixing agents;
f) optionally from about 0.01% to about 15% by weight, of a chlorine scavenger;
g) optionally about 0.005% to about 1% by weight, of one or more crystal growth inhibitors;
h) optionally from about 0.01% to about 20% by weight, of a fabric abrasion reducing polymer;
i) optionally from about 1% to about 12% by weight, of one or more liquid carriers;
j) optionally from about 0.001% to about 1% by weight, of an enzyme;
k) optionally from about 0.01% to about 8% by weight, of a polyolefin emulsion or suspension;
l) optionally from about 0.01% to about 0.2% by weight, of a stabilizer;
m) optionally from about 1% to about 80% by weight, of a fabric softening active;
n) optionally from about 0.5% to about 10% by weight, of a cationic nitrogen compound; and
o) the balance carrier and adjunct ingredients.
Another aspect of the present invention relates to clear, colorless or translucent isotropic liquids which are rinse-added fabric color fidelity enhanced compositions. These isotropic liquid embodiments typically comprise less than about 95%, preferably less than about 50%, more preferably less than about 25%, most preferably less than about 15% by weight of a principal solvent as defined herein below.
The present invention also relates to fabric enhancement compositions which comprise a fabric care composition which comprises both a linear polyamine and a cyclic polyamine.
A further aspect of the present invention relates to liquid dispersion forms of the rinse-added compositions which may comprise polyamines which provide, in addition to color fidelity benefits, metal chelation and chlorine scavenging properties which provide enhanced fabric softness, integrity, and appearance. These and other objects, features and advantages will become apparent to those of ordinary skill in the art from a reading of the following detailed description and the appended claims.
All percentages, ratios and proportions herein are by weight, unless otherwise specified. All temperat
Boeckh Dieter
Borzyk Oliver
Cauwberghs Serge Gabriel Pierre Roger
Ehle Michael
Gordon Neil James
DelCotto Gregory
McBride James F.
Miller Steven W.
The Procter & Gamble & Company
Zerby Kim W.
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