Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
2002-04-04
2004-08-03
Hardee, John R. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
Reexamination Certificate
active
06770617
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a softener composition.
PRIOR ART
A quaternary ammonium salt having a long-chain alkyl group or an acid salt of a tertiary amine is conventionally used for softeners. These softeners have a good softening effect on various fabrics even if they are used in a small amount. However, these softeners are known to make fabrics oily finish and therefore softeners improving the feeling of fabrics have been desired.
In order to dissolve this drawback, a method in which a combination of a dialkyl quaternary ammonium compound and an anionic surfactant is used is disclosed in JP-B No. 61-37387 and a softener composition comprising a combination of a softening component having two or more cationic ions in its molecule and an anionic surfactant is disclosed in JP-A No. 9-111660. However, these technologies cannot succeed in compatibility between the flexibility and the feeling of finished fabric.
Also, studies have been made as to a development of a softener composition made its outward appearance transparent in recent years from an aesthetic point of view. In JP-A No. 11-507095, technologies using a specified softener compound having an alkenyl group and a solvent having a specified Clog P value are disclosed. However, even if such technologies are used, only an insufficient effect of improving the feeling of fabric is obtained.
Meanwhile, it has been already known that a mono long-chain alkyl tertiary amine is used for a softener. In the publication of JP-A No. 7-268773, a softener composition using a mono long-chain alkyl tertiary amine having an ester group or an amide group and a specified ester compound. Also, in the publication of JP-A No. 5-132865, a softener composition is disclosed in which an amine compound and an anionic surfactant are carried on a substrate in the condition that the both are not mixed. However, oily feeling cannot be improved even in the compositions disclosed in these publications and no liquid softener composition of which outward appearance is transparent cannot be provided.
WO99/27050 shows a transparent softener, which comprises softening materials, a solvent having a log P of −2.0 to 2.6 and an electrolyte.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a transparent softener composition which has a high softening effect and imparts desirable feeling to clothes.
The invention provides a softener composition comprising (&agr;) an amino compound or a quaternary ammonium-having compound, (&bgr;) an anionic surfactant and water, (&agr;) and (&bgr;) being specified below as (I) or (II), at a mole ratio of (&agr;)/(&bgr;) ranging from 9/1 to 4/6, further comprising an organic solvent having a log P of 0.2 to 3.0 when (&agr;) and (&bgr;) are specified as (I):
(I) (a) a compound having one group selected from an amino group and a quaternary ammonium group and one hydrocarbon group having 8 to 36 carbon atoms in its molecule and (b) an anionic surfactant having a hydrocarbon group having 14 to 36 hydrocarbons and a —SO
3
M group and/or a —OSO
3
M group, M being a counter ion, in its molecule, or;
(II) (a″) a compound having one group selected from an amino group and a quaternary ammonium group and one hydrocarbon group having 8 to 36 carbon atoms in its molecule and (b″) an anionic surfactant having a hydrocarbon group having 8 to 36 carbon atoms and a —SO
3
M group and/or a —OSO
3
M group, M being a counter ion, in its molecule wherein at least one of (a″) and (b″) contains a hydrocarbon group selected from (1) a hydrocarbon group having one or more unsaturated bonds and 8 to 36 carbon atoms and (2) a branched alkyl group having 8 to 36 carbon atoms.
It is preferable that in the above shown composition (&agr;) and (&bgr;) may form a complex with each other.
The embodiment (I) of the present invention is, to say in other words, a softener composition comprising (a) a compound [hereinafter referred to as a component (a)] having one group selected from an amino group and a quaternary ammonium group and one hydrocarbon group having 8 to 36 carbon atoms in its molecule and (b) an anionic surfactant [hereinafter referred to as a component (b)] having a hydrocarbon group having 14 to 36 carbon atoms and a —SO
3
M group and/or a —OSO
3
M group [M: counter ion] in its molecule, (c) an organic solvent [hereinafter referred to as a component (c)] having a log P of 0.2 to 3.0 and water, wherein (a)/(b) is 9/1 to 4/6 in terms of molar ratio.
The hydrocarbon group of (b) may have 16 to 36 carbon atoms and (c) has a log P of 0.5 to 3.0.
The embodiment (II) of the present invention relates to a softener composition comprising (a″) a compound [hereinafter referred to as a component (a″) having one group selected from an amino group and a quaternary ammonium group and one hydrocarbon group having 8 to 36 carbon atoms in its molecule, (b″) an anionic surfactant [hereinafter referred to as a component (b″)] having a hydrocarbon group having 8 to 36 carbon atoms and a —SO
3
M group and/or a —OSO
3
M group (M: counter ion) in its molecule and water wherein the molar ratio of (a″)/(b″) is 9/1 to 4/6 and at least one of (a″) and (b″) contains at least one hydrocarbon group selected from (1) a hydrocarbon group having one or more unsaturated bonds and 8 to 36 carbon atoms and (2) a branched alkyl group having 8 to 36 carbon atoms.
As to the components (a″) and (b″) of the present invention, either both or any one of these components and preferably any one of these components are contained and most preferably the component (b″) contains at least one hydrocarbon group selected from (1) a hydrocarbon group (hereinafter referred to as a hydrocarbon group (1)) having one or more unsaturated bonds and 8 to 36 and preferably 14 to 26 carbon atoms and (2) a branched alkyl group (hereinafter referred to as a hydrocarbon group (2)) having 8 to 36 and preferably 12 to 26, more preferably 14 to 26 carbon atoms). Also in the case where the component (a″) and/or the component (b″) are used in plural, at least any one of the compounds may contain at least one hydrocarbon group selected from the hydrocarbon group (1) and the hydrocarbon group (2). The hydrocarbon group (1) may contain a branched chain.
As the hydrocarbon group (1), an oleyl group, elaidyl group, linol group, linolenyl group, erucyl group and brassidyl group are preferable. Also, as the hydrocarbon group (2), an isostearyl group, isooleyl group and Guerbet type alkyl group are preferable. An oleyl group and erucyl group as the hydrocarbon group (1) and an isostearyl group and Guerbet type alkyl group as the hydrocarbon group (2) are more preferable in view of feeling.
Also, these hydrocarbon groups (1) and (2) may be connected with a quaternary ammonium group and/or an amino group used as the component (a″) or an anionic group used as the component (b″) through an ester group, ether group or amide group. Concretely, a group represented by R′—[T—R″]
b
— [wherein R′ represents a hydrocarbon group selected from the hydrocarbon group (1) and the hydrocarbon group (2), T represents a group selected from —COO—, —OCO—, —CONH— and —NHCO, R″ represents an alkylene group having 1 to 5 carbon atoms and h denotes a number of 0 or 1] is preferable.
DETAILED DESCRIPTIONS OF THE INVENTION
<Component (a)>
As the component (a) according to the present invention, one or more types selected from a tertiary amine represented by the following formula (I) or its salt and a quaternary ammonium salt represented by the formula (2) are preferable.
wherein R
1
and R
5
independently represent an alkyl group or an alkenyl group having 8 to 36 carbon atoms, R
2
and R
6
independently represent an alkylene group having 1 to 6 carbon atoms, R
3
, R
4
, R
7
, R
8
and R
9
independently represent an alkyl group or a hydroxyalkyl group having 1 to
Ogura Nobuyuki
Tagata Shuji
Ushio Noriaki
Yamamoto Atsushi
Hardee John R.
Kao Corporation
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