Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
1998-12-11
2002-05-07
Kopec, Mark (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
C510S461000, C510S470000
Reexamination Certificate
active
06384011
ABSTRACT:
TECHNICAL FIELD
The present invention relates to compositions, in either liquid or granular form, for use in laundry applications, wherein the compositions comprise certain cellulosic based polymer or oligomer materials which impart appearance and integrity benefits to fabrics and textiles laundered in washing solutions formed from such compositions.
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. 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 cellulosic based polymer or oligomer materials in laundry applications which perform in this desired manner.
SUMMARY OF THE INVENTION
Cellulosic based polymer or oligomer materials which are suitable for use in laundry operations and provide the desired fabric appearance and integrity benefits can be characterized by the following general formula:
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
-
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, 1/2 Ca, and 1/2 Mg;
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 0.1, more preferably between about 0.005 and 0.05, and most preferably between about 0.01 and 0.05;
the Degree of Substitution for group R
C
wherein Z is H or M is between about 0.2 and 2.0, more preferably between about 0.3 and. 1.0, and most preferably between about 0.4 and 0.7;
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 cellulosic based polymer 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 in liquid detergent compositions or added to a fabric softening composition. The forgoing description of uses for the cellulosic based fabric treatment 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 detergent compositions herein comprise from about 1% to 80% by weight of a detersive surfactant, from about 0.1% to 80% by weight of an organic or inorganic detergency builder and from about 0.1% to 5% by weight of the cellulosic based fabric treatment materials of the present invention. The detersive surfactant and detergency builder materials can be any of those useful in conventional laundry detergent products.
Aqueous solutions of the cellulosic based polymer or oligomer materials of the subject invention comprise from about 0.1% to 80% by weight of the cellulosic based fabric treatment materials dissolved in water and other ingredients such as stabilizers and pH adjusters.
In its method aspect, the present invention relates to the laundering or treating of fabrics and textiles in aqueous washing or treating solutions formed from effective amounts of the detergent 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.
DETAILED DESCRIPTION OF THE INVENTION
As noted, when fabric or textiles are laundered in wash solutions which comprise the cellulosic based polymer or oligomer materials of the present invention fabric appearance and integrity are enhanced. The cellulosic based fabric treatment materials can be added to wash solutions by incorporating them into a detergent composition, a fabric softener or by adding them separately to the washing solution. The cellulosic based fabric treatment materials are described herein primarily as liquid or granular detergent additives but the present invention is not meant to be so limited. The cellulosic based fabric treatment materials, detergent composition components, optional ingredients for such compositions and methods of using such compositions, are described in detail below. All percentages are by weight unless other specified.
A) Cellulosic Based Polymer or Oligomer Materials
The essential component of the compositions of the present invention comprises one or more cellulosic based polymer or oligomer. Such materials have been found to impart a number of appearance benefits to fabrics and textiles laundered in aqueous washing solutions formed from detergent compositions which contain such cellulosic based fabric treatment materials. Such fabric appearance benefits can include, for example, improved overall appearance of the laundered fabrics, reduction of the formation of pills and fuzz, protection against color fading, improved abrasion resistance, etc. The cellulosic based fabric treatment materials used in the compositions and methods herein can provide such fabric appearance benefits with acceptably little or no loss in cleaning performance provided by the laund
Gosselink Eugene Paul
Leupin Jennifer Ann
Dressman Marianne
Kopec Mark
Miller Steven W.
Mruk Brian P.
The Procter & Gamble & Company
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