Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
2001-04-19
2004-10-26
Mruk, Brian P. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
C510S470000, C008S137000
Reexamination Certificate
active
06809074
ABSTRACT:
TECHNICAL FIELD
The present invention relates to compositions, in any form, preferably liquid or granular form, for use in laundry and/or fabric care applications, wherein the compositions comprise certain modified starch-based polymer and/or oligomer materials which impart appearance and integrity benefits to fabrics and textiles laundered in washing solutions formed from such compositions. The modified starch-based polymer and/or oligomer materials can be added to wash solutions by incorporating them into a laundry and/or fabric care composition, a fabric softener or by adding them separately to the washing solution. The modified starch-based polymer and/or oligomer materials are described herein primarily as liquid or granular detergent additives but the present invention is not meant to be so limited.
BACKGROUND OF THE INVENTION
It is, of course, well known that alternating cycles of using and laundering fabrics and textiles, such as articles of worn clothing and apparel, will inevitably adversely affect the appearance and integrity of the fabric and textile items so used and laundered. Fabrics and textiles simply wear out over time and with use. Laundering of fabrics and textiles is necessary to remove soils and stains which accumulate therein and thereon during ordinary use. However, the laundering operation itself, over many cycles, can accentuate and contribute to the deterioration of the integrity and the appearance of such fabrics and textiles.
Deterioration of fabric integrity and appearance can manifest itself in several ways. Short fibers are dislodged from woven and knit fabric/textile structures by the mechanical action of laundering. These dislodged fibers may form lint, fuzz or “pills” which are visible on the surface of fabrics and diminish the appearance of newness of the fabric. Also, dislodged fibers are more susceptible to damage which causes increased light scattering to decrease fabric color depth or strength. Further, repeated laundering of fabrics and textiles, especially with bleach-containing laundry products, can remove dye from fabrics and textiles and impart a faded, worn out appearance as a result of diminished color intensity, and in many cases, as a result of changes in hues or shades of color.
Given the foregoing, there is clearly an ongoing need to identify materials which could be added to laundry detergent products that would associate themselves with the fibers of the fabrics and textiles laundered using such detergent products and thereby reduce or minimize the tendency of the laundered fabric/textiles to deteriorate in appearance. Any such detergent product additive material should, of course, be able to benefit fabric appearance and integrity without unduly interfering with the ability of the laundry detergent to perform its fabric cleaning function. The present invention is directed to the use of modified starch-based polymer and/or oligomer materials in laundry and/or fabric care applications which perform in this desired manner.
SUMMARY OF THE INVENTION
Modified starch-based polymer and/or oligomer materials, preferably modified amylose (represented by Formula I below) and/or modified amylopectin (represented by Formula II below) both of which are described in Kirk-Othmer's
Encyclopedia of Chemical Technology
4
th
Edition, Vol. 22, pp. 701-703, starch, generally, is described at pp. 699-719, which are suitable for use in laundry and/or fabric care operations and provide the desired fabric appearance and integrity benefits can be characterized by the following general formulas, alone or in combination:
wherein each R is selected from the group consisting of R
2
, R
C
, and
wherein:
each R
2
is independently selected from the group consisting of H and C
1
-C
4
alkyl;
each R
c
is
wherein each Z is independently selected from the group consisting of M, R
2
, R
C
, and R
H
;
each R
H
is independently selected from the group consisting of C
5
-C
20
alkyl, C
5
-C
7
cycloalkyl, C
7
-C
20
alkylaryl, C
7
-C
20
arylalkyl, substituted alkyl, hydroxyalkyl, C
1
-C
20
alkoxy-2-hydroxyalkyl, C
7
-C
20
alkylaryloxy-2-hydroxyalkyl, (R
4
)
2
N-alkyl, (R
4
)
2
N-2-hydroxyalkyl, (R
4
)
3
N-alkyl, (R
4
)
3
N-2-hydroxyalkyl, C
6
-C
12
aryloxy-2-hydroxyalkyl,
each R
4
is independently selected from the group consisting of H, C
1
-C
20
alkyl, C
5
-C
7
cycloalkyl, C
7
-C
20
alkylaryl, C
7
-C
20
arylalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, piperidinoalkyl, morpholinoalkyl, cycloalkylaminoalkyl and hydroxyalkyl;
each R
5
is independently selected from the group consisting of H, C
1
-C
20
alkyl, C
5
-C
7
cycloalkyl, C
7
-C
20
alkylaryl, C
7
-C
20
arylalkyl, substituted alkyl, hydroxyalkyl, (R
4
)
2
N-alkyl, and (R
4
)
3
N-alkyl;
wherein:
M is a suitable cation selected from the group consisting of Na
+
, K
+
, ½Ca
2+
,½Mg
2+
, or
+
NH
j
R
k
wherein j and k are independently from 0 to 4 and wherein j+k is 4 and R in this formula is any moiety capable of forming a cation, preferably methyl and/or ethyl group or derivative;
each x is from 0 to about 5;
each y is from about 1 to about 5; and provided that:
the Degree of Substitution for group R
H
is between about 0.001 and about 0.1, more preferably between about 0.005 and about 0.05, and most preferably between about 0.01 and about 0.05;
the Degree of Substitution for group R
C
wherein Z is H or M is between about 0 and about 2.0, more preferably between about 0.05 and about 1.0, and most preferably between about 0.1 and about 0.5;
if any R
H
bears a positive charge, it is balanced by a suitable anion; and
two R
4
's on the same nitrogen can together form a ring structure selected from the group consisting of piperidine and morpholine.
The modified starch-based polymer and/or oligomer materials defined above can be used as a washing solution additive in either granular or liquid form. Alternatively, they can be admixed to granular detergents, dissolved/dispersed in liquid laundry and/or fabric care compositions or added to a fabric softening composition. The forgoing description of uses for the modified starch-based polymer and/or oligomer materials defined herein are intended to be exemplary and other uses will be apparent to those skilled in the art and are intended to be within the scope of the present invention.
The laundry and/or fabric care compositions herein comprise from about 0.1% to about 80%, more preferably from about 1% to about 50%, even more preferably from about 2% to about 30% by weight of the modified starch-based polymer and/or oligomer materials of the present invention and optionally, but preferably from about 1% to about 80% by weight of a detersive surfactant, from about 0.1% to about 80% by weight of an organic or inorganic detergency. The detersive surfactant and detergency builder materials can be any of those useful in conventional laundry detergent products.
Aqueous solutions of the modified starch-based polymer and/or oligomer materials of the subject invention comprise from about 0.5 ppm to about 1000 ppm, more preferably from about 0.875 ppm to about 700 ppm, most preferably from about 10 ppm to about 200 ppm of the modified starch-based polymer and/or oligomer materials dissolved in water.
In its method aspect, the present invention relates to the laundering or treating of fabrics and textiles in aqueous washing or treating solutions, especially in-home laundering and/or treating solutions and/or solutions used to treat and/or launder finished garments, formed from effective amounts of the laundry and/or fabric care compositions described herein, or formed from the individual components of such compositions. Laundering of fabrics and textiles in such washing solutions, followed by rinsing and drying, imparts fabric appearance benefits to the fabric and textile articles so treated. Such benefits can include improved overall appearance, pill/fuzz reduction, antifading, improved abrasion resistance, and/or enhanced softness.
All percentages, ratios and proportions herein are on a
Moe Jennifer Leupin
Spendel Wolfgang Ulrich
Cook C. Brant
Corstanje Brahm J.
Glazer Julia A.
Mruk Brian P.
The Procter & Gamble & Company
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