Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
2000-12-08
2004-02-03
Mruk, Brian P (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
C510S356000, C510S360000, C510S413000, C510S421000, C510S535000
Reexamination Certificate
active
06686330
ABSTRACT:
TECHNICAL FIELD
The present invention relates to compositions containing low-foaming nonionic wetting agents.
BACKGROUND OF THE INVENTION
Due to the varied nature of different compositions, different wetting agents are better suited for some applications while being less suited or totally unsuitable for other applications. While some wetting agents provide the desired properties, such as dispersion or suspension of other ingredients, they are high foaming or not readily biodegradable. Conversely, a wetting agent may be suitably low foaming, but provide less that suitable dispersion or suspension of other ingredients.
Accordingly, the need remains for new wetting agents which are suitable for use in a variety of compositions and applications that can provide improve dissolution, improved rates of mixing with water, improved streaking and filming performance, good wetting, adequate dispersion and/or suspension, suds control and good biodegradability, while avoiding incompatibility with other components of the compositions.
SUMMARY OF THE INVENTION
In accordance with a first aspect of the present invention, a composition comprising an ether-capped poly(oxyalkylated) alcohol wetting agent is provided. The composition comprises:
(a) from about 0.01% to about 50%, preferably from about 0.1% to about 20%, more preferably from about 0.1% to about 10%, by weight of the composition of a wetting agent, wherein said wetting agent comprises an ether-capped poly(oxyalkylated) alcohol having the formula:
RO(R
1
O)
x
CH(CH
3
)OR
2
wherein R is selected from the group consisting of linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radicals having from about 1 to about 30 carbon atoms; R
1
may be the same or different, and is independently selected from the group consisting of branched or linear C
2
to C
7
alkylene in any given molecule; x is a number from 1 to about 30; and R
2
is selected from the group consisting of:
(i) a 4 to 8 membered substituted, or unsubstituted heterocyclic ring containing from 1 to 3 hetero atoms; and
(ii) linear or branched, saturated or unsaturated, substituted or unsubstituted, cyclic or acyclic, aliphatic or aromatic hydrocarbon radicals having from about 1 to about 30 carbon atoms;
provided that when R
2
is (ii) then either at least one of R
1
is other than C
2
to C
3
alkylene or R
2
has from 6 to 30 carbon atoms; and
(b) from about 0.1% to about 99% by weight of the composition of an adjunct ingredient.
These and other aspects, 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
Once again, the first aspect of the present invention is directed toward compositions comprising low-foaming nonionic wetting agents. The wetting agents of the present invention are of the formula:
RO(R
1
O)
x
CH(CH
3
)OR
2
In one aspect of the present invention, R is a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic hydrocarbon radical having from about 1 to about 20 carbon atoms. Even more preferably R is a linear or branched, saturated, aliphatic hydrocarbon radical having from about 4 to about 18, preferably from about 8 to about 16, carbon atoms.
In one aspect of the present invention R, R
1
and R
2
are selected such that the ether-capped poly(oxyalkylated) alcohol contains one or more chiral carbon atoms.
In one aspect of the present invention the ether-capped poly(oxyalkylated) alcohol is a mixture of ether-capped poly(oxyalkylated) alcohols. This mixture can be obtained in a variety of ways, for example, by mixing two ether-capped poly(oxyalkylated) alcohols together, or by forming the ether-capped poly(oxyalkylated) alcohols from a mixture of alcohols, in which the reaction used to produce the ether-capped poly(oxyalkylated) alcohols forms a racemic mixture, or by alkoxylating under conditions such that the ether-capped poly(oxyalkylated) alcohol produced is a mixture with a range of different alkoxy groups present on each ether-capped poly(oxyalkylated) alcohol. These example are intended to be illustrative, and in no way limiting in the scope of the invention.
In one aspect of the present invention, R is a hydrocarbon radical of the formula:
wherein R
4
, R
5
, and R
6
are each independently selected from hydrogen and C
1
-C
3
alkyl, more preferably hydrogen and C
1
-C
2
alkyl, even more preferably hydrogen and methyl, provided that R
4
, R
5
, and R
6
are not all hydrogen and, when t is 0, at least R
4
or R
5
is not hydrogen; q, r, s, and t are each independently integers from 0 to 13. In one more preferred form of this aspect R is selected from the formulas:
wherein n, m, j and k are each independently integers from 0 to 13.
In one aspect of the present invention R
2
is a hydrocarbon radical of the formula:
—C(CH
3
)
2
R
3
wherein R
3
is selected from the group consisting of linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radicals having from about 1 to about 30, more preferably 1 to 20, even more preferably 1 to 15, carbon atoms. In one embodiment of this aspect of the present invention, R
3
is —CH
2
CH
3
.
In the novel compounds of the present invention, when R
2
is (ii) then either at least one of R
1
is other than C
2
to C
3
alkylene or R
2
has from 6 to 30 carbon atoms. That is, when R
2
is (ii) R
2
is either a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 6 to about 30 carbon atoms or a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 1 to about 30 carbon atoms, with at least one of R
1
being other than C
2
to C
3
alkylene. For example, when R
2
is a hydrocarbon of the formula:
—(CH
2
)
y
—X
where y and X are described hereafter, or R
2
is a hydrocarbon radical of the formula:
C(CH
3
)
2
R
3
where R
3
is hereinbefore described, then at least one of R
1
is other than C
2
to C
3
alkylene. For example, if x is 5, and R
2
is (CH
2
)
y
—X, then the ether-capped poly(oxyalkylated) alcohol could have the formula:
RO(CH
2
CH(CH
2
CH
3
)O)
5
CH(CH
3
)O—(CH
2
)
y
—X
or
RO(CH
2
CH
2
O)
4
(CH
2
CH(CH
2
CH
3
)O)CH(CH
3
)O—(CH
2
)
y
—X
or
RO(CH
2
CHCH
3
O)(CH
2
CH(CH
2
CH
3
)O)
4
CH(CH
3
)O—(CH
2
)
y
—X
Similarly, for example if R
2
is —C(CH
3
)
2
R
3
and x is 7, then the ether-capped poly(oxyalkylated) alcohol could have the formula:
RO(CH
2
CH
2
O)
6
(CH
2
CH
2
(CH
2
CH
3
)O)CH(CH
3
)O—C(CH
3
)
2
R
3
or
RO(CH
2
CHCH
3
O)
4
(CH
2
CH(CH
2
CH
3
)O)
3
CH(CH
3
)O—C(CH
3
)
2
R
3
or
RO(CH
2
CH
2
O)
3
(CH
2
CHCH
3
O)
2
(CH
2
CH(CH
2
CH
3
)O)(CH
2
CH(CH
2
CH
2
CH
3
CH)O)CH(CH
3
)O—C(CH
3
)
2
R
3
These above examples are included merely for illustrative purposes and are not to be construed in any manner as limiting of the scope of the present invention.
In one aspect of the present invention R
2
is a 4 to 8 membered substituted or unsubstituted heterocyclic ring containing from 1 to 3 heteroatoms. In one embodiment of this aspect of the invention the heteroatoms are selected from the group comprising oxygen, nitrogen, sulfur and mixtures thereof. In one embodiment of this aspect of the invention R
2
is a 5 or 6 member heterocycle. In another embodiment of this aspect of the present invention R
2
is selected from the group consisting of:
wherein each R
7
is independently selected from the group consisting of hydrogen and linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic hydrocarbon or alkoxy radicals having from about 1 to about 10 carbon atoms, or R
7
is a saturated or unsaturated, substituted or
Jordan, IV Glenn Thomas
Kluesener Bernard William
McKenzie Kristen Lynne
Scheper William Michael
Sivik Mark Robert
Miller Steven W.
Mruk Brian P
The Procter & Gamble & Company
Zerby Kim W.
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