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Cationic compositions containing diol and/or diol alkoxylate
| Details |
Inventors: Keys, Robert O.;
Assignee: Witco Corporation (Greenwich, CT)
Primary Examiner: Lieberman; Paul
Assistant Examiner: Hardee; John R.
Attorney, Agent or Firm: Scully, Scott, Murphy & Presser
Homogeneous liquid cationic compositions are produced by combining one or more cationic agents with one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms or, if (x=y=0), R contains 7 to 12 carbon atoms. Compositions are easily dispersed in water, even at room temperature, at any concentration and can be made to form clear or translucent products having a desirable uniform appearance, by appropriate selection of components and their amounts. |
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DETAILED DESCRIPTION OF THE INVENTION The compounds of the aforementioned formula (1), sometimes referred to herein as diols and diol alkoxylates, contribute essentially to many of the advantageous properties of the compositions of the present invention.
In formula (1), the molecule can comprise one or two terminal poly(alkoxy) chains.
While, as defined above, each alkoxy unit can be ethoxy, propoxy, or butoxy, a mixture of types of alkoxy groups, or block copolymers composed of a chain of one type of repeating alkoxy unit attached to a chain of a different type of repeating alkoxy unit, are especially contemplated.
The alkylene residue R in formula (1) represents a saturated, straight-chain, branched-chain, or cyclic moiety containing 4 to 12 carbon atoms.
It is preferred that R is branched; the term "branched" is intended to encompass structures having one side alkyl chain, more than one side alkyl chain, or one or more side alkyl chains one or more of which is itself branched.
Branched structures include cyclic structures substituted with one or more alkyl groups which can be straight or branched.
Examples of suitable R groups include --CH.
sub.
2 CH.
sub.
2 CH.
sub.
2 --, --C(CH.
sub.
3)CH.
sub.
2 --, --CH.
sub.
2 CH(CH.
sub.
3)CH.
sub.
2 --, --CH.
sub.
2 C(CH.
sub.
3).
sub.
2 CH.
sub.
2 --, --CH.
sub.
2 CH(CH.
sub.
2 CH.
sub.
2 CH.
sub.
2 CH.
sub.
3)--, --(CH.
sub.
2).
sub.
6 --, ##STR1## --CH.
sub.
2 C(CH.
sub.
3).
sub.
2 CH(CH(CH.
sub.
3).
sub.
2)--, and --CH.
sub.
2 CH(CH.
sub.
2 CH.
sub.
3)CH.
sub.
2 CH.
sub.
2 CH.
sub.
2 CH.
sub.
2 --.
In the alkoxylated diols, the number of repeating units in each poly(alkoxy) chain can be up to 40 but it is preferred that each chain contains 1 to 10 repeating alkoxy units or more preferably 1 to 5 alkoxy units.
The preferred alkoxy chains are poly(ethoxy), or are composed of 1 to 2 ethoxy units capped with a chain of 1 to 5 propoxy units.
Compounds of the formula (1) defined above are in many instances commercially available.
Compounds of formula (1) can be prepared in straightforward manner familiar to those of ordinary skill in this art by obtaining or preparing the corresponding precursor diol of the formula HO--R--OH, and then alkoxylating the precursor diol with a stoichiometrically appropriate number of moles of the desired corresponding alkylene oxide, such as ethylene oxide, propylene oxide, and/or butylene oxide
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Molecular Biology 
