Laundry detergent compositions with certain cationically...

Details Laundry detergent compositions with certain cationically... Laundry detergent compositions with certain cationically...

2001-08-29

2004-05-11

Mruk, Brian P. (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

C510S360000, C510S361000, C510S434000, C510S475000, C510S476000, C510S477000, C510S480000, C510S490000, C510S500000, C510S504000

Reexamination Certificate

active

06733538

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to compositions, in either liquid or granular form, for use in laundry applications, wherein the compositions comprise certain dye maintenance polymers that have a net positive charge. Compositions comprising the dye maintenance polymers of this invention 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 products that would associate themselves with the fibers of the fabrics and textiles laundered using such 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 product to perform its intended function. The present invention is directed to the use of dye maintenance polymers in laundry applications that perform in this desired manner.
SUMMARY OF THE INVENTION
The present invention meets the aforementioned need in that it has been surprisingly discovered that fabric which is treated, and subsequently re-treated with the compositions of the present invention, will resist normal fading and color loss without regard to the circumstances, inter alia, due to mechanical wear and abrasion. In addition, fabric which has not been treated can have the loss of fabric dye attenuated by washing clothing with the laundry detergent compositions of the present invention. The compositions of the present invention can take any form, inter alia, heavy duty liquid (HDL), heavy duty granular (HDG), bars, pastes, thixotropic compositions.
The first aspect of the present invention relates to laundry detergent compositions providing dye protection benefits to fabric comprising:
a) from about 4% to about 70% by weight, of a surfactant selected from the group consisting of nonionic, anionic, cationic, amphoteric, zwitterionic surfactants and mixtures thereof, preferably at least one of said surfactants is an anionic surfactant;
b) from about 0.01%, preferably from about 0.1%, more preferably from about 0.5%, most preferably from about 0.8% to about 10%, preferably to about 8%, more preferably to about 6%, most preferably to about 5% by weight, of a dye maintenance polymer or oligomer, said polymer or copolymer comprising one or more units having the formula:
I) linear polymer units having the formula:
 wherein each R
1
is independently
a) hydrogen;
b) C
1
-C
4
alkyl;
c) substituted or unsubstituted phenyl;
d) substituted or unsubstituted benzyl;
e) carbocyclic;
f) heterocyclic;
g) and mixtures thereof;
each R
2
is independently
a) hydrogen;
b) halogen
c) C
1
-C
4
alkyl;
d) C
1
-C
4
alkoxy;
e) substituted or unsubstituted phenyl;
f) substituted or unsubstituted benzyl;
g) carbocyclic;
h) heterocyclic;
i) and mixtures thereof;
each Z is independently
a) hydrogen;
b) hydroxyl;
c) halogen;
d) —(CH
2
)
m
R;
wherein R is:
i) hydrogen;
ii) hydroxyl
iii) halogen;
iv) nitrilo;
v) —OR
3
;
vi) —O(CH
2
)
n
N(R
3
)
2
;
vii) —O(CH
2
)
n
N
+
(R
3
)
3
X
−
;
viii) —OCO(CH
2
)
n
N(R
3
)
2
;
ix) —OCO(CH
2
)
n
N
+
(R
3
)
3
X
−
;
x) —NHCO(CH
2
)
n
N(R
3
)
2
;
xi) —NHCO(CH
2
)
n
N
+
(R
3
)
3
X
−
;
xii) —(CH
2
)
n
N(R
3
)
2
;
xiii) —(CH
2
)
n
N
+
(R
3
)
3
X
−
;
xiv) carbocyclic;
xv) heterocyclic;
xvi) nitrogen heterocycle quaternary ammonium;
xvii) nitrogen heterocycle N-oxide;
xviii) aromatic N-heterocyclic quaternary ammonium;
xix) aromatic N-heterocyclic N-oxide;
xx) —NHCHO;
xxi) or mixtures thereof;
each R
3
is independently hydrogen, C
1
-C
8
alkyl, C
2
-C
8
hydroxyalkyl, and mixtures thereof; X is a water soluble anion; the index n is from 0 to 6
e) —(CH
2
)
m
COR′
wherein R′ is
i) —OR
3
;
ii) —O(CH
2
)
n
N(R
3
)
2
;
iii) —O(CH
2
)
n
N
+
(R
3
)
3
X
−
;
iv) —NR
3
(CH
2
)
n
N(R
3
)
2
;
v) —NR
3
(CH
2
)
n
N
+
(R
3
)
3
X
−
;
vi) —(CH
2
)
n
N(R
3
)
2
;
vii) —(CH
2
)
n
N
+
(R
3
)
3
X
−
;
viii) or mixtures thereof;
each R
3
is independently hydrogen, C
1
-C
8
alkyl, C
2
-C
8
hydroxyalkyl, and mixtures thereof; X is a water soluble anion; the index n is from 0 to 6;
f) and mixtures thereof; the index m is from 0 to 6;
II) cyclic units derived from cyclically polymerizing monomers having the formula:
 wherein each R
4
is independently an olefin comprising unit which is capable of propagating polymerization in addition to forming a cyclic residue with an adjacent R
4
unit; R
5
is C
1
-C
12
linear or branched alkyl, benzyl, substituted benzyl, and mixtures thereof; X is a water soluble anion; and
III) mixtures thereof; provided said polymer or co-polymer has a net cationic charge; and wherein said dye maintenance polymer is not an polyethyleneimine or alkoxylated derivative thereof; and
b) the balance carriers and other adjunct ingredients.
In addition to the surfactant and the dye maintenance polymer of this invention, the laundry detergent compositions herein comprise from about 0.01% to 80% by weight of an organic or inorganic detergency builder and other conventional laundry detergent products. In its method aspect, the present invention relates to the laundering or treating of fabrics and textiles in aqueous washing, rinsing, or treating solutions formed from effective amounts of any of the detergent compositions, fabric softener compositions, or aqueous solution treatments described herein, or formed from the individual components of such compositions. Laundering of fabrics and textiles in such washing, rinsing and/or treatment solutions, followed by drying, imparts fabric appearance benefits to the fabric and textile articles so treated. Such benefits can include improved overall appearance, pill/fuzz reduction, anti-fading, improved abrasion resistance, and/or enhanced softness. It has been surprisingly determined that the dye maintenance polymers of this invention impart fabric appearance and integrity benefits that are greater than the benefits achieved by a corresponding amount of either component by itself.
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 temperatures are in degrees Celsius (°C.) unless otherwise specified. All documents cited are in relevant part, incorporated herein by reference.
DETAILED DESCRIPTION OF THE INVENTION
As noted, when fabric or textiles are laundered in solutions which comprise the dye maintena

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