The present invention provides a co-surfactant which, when used in combination with a surfactant, can reduce the size of the surfactant micelle and can enhance the functions of the surfactant, such as the expression of microemulsion formation performance. This co-surfactant contains at least one compound represented by chemical formula (1). ##STR00001##
(In the formula, R.sup.1 is a hydrogen atom or a C.sub.1-C.sub.33 aliphatic hydrocarbon group, R.sup.2 is a C.sub.1-C.sub.33 aliphatic hydrocarbon group, the total number of carbons of R.sup.1 and R.sup.2 is 6-34, X is a single bond or a C.sub.1-C.sub.5 aliphatic hydrocarbon group, and one of A.sup.1 and A.sup.2 is —OH and the other is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

The present invention provides a co-surfactant which, when used in combination with a surfactant, can reduce the size of the surfactant micelle and can enhance the functions of the surfactant, such as the expression of microemulsion formation performance. This co-surfactant contains at least one compound represented by chemical formula (1). ##STR00001##
(In the formula, R.sup.1 is a hydrogen atom or a C.sub.1-C.sub.33 aliphatic hydrocarbon group, R.sup.2 is a C.sub.1-C.sub.33 aliphatic hydrocarbon group, the total number of carbons of R.sup.1 and R.sup.2 is 6-34, X is a single bond or a C.sub.1-C.sub.5 aliphatic hydrocarbon group, and one of A.sup.1 and A.sup.2 is —OH and the other is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

A surfactant composition contains: a C12 compound of the following formula (1):

##STR00001##

where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 9; a C13 compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 10; a C14 compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 11; and a Y compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is at least one of 8 or less and 12 or more.

A surfactant composition contains: a C12 compound of the following formula (1):

##STR00001##

where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 9; a C13 compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 10; a C14 compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is 11; and a Y compound of the formula (1), where A is an alkylene group having 1 to 3 carbon atoms, x is 1 to 50, and m+n is at least one of 8 or less and 12 or more.

The present disclosure discloses a method for preparing a hybrid-type fluorine-based nonionic surfactant capable of producing a high purity material in a high yield. By preparing a hybrid-type fluorine-based nonionic surfactant according to the present disclosure, the surfactant is mass-produced in a high yield through controlling reaction conditions including a solvent.

A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.

A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.

The invention relates to a compound of following formula (I): ##STR00001##
a preparation process, uses thereof and compositions containing the same, wherein R.sub.1 and R.sub.2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R.sub.1 and R.sub.2 ranges from 2 to 7, and where R.sub.1 and R.sub.2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R.sub.1, R.sub.2 and the carbon atom to which R.sub.1 and R.sub.2 are attached has a degree of branching equal to 0, 1 or 2.

The invention relates to a compound of following formula (I): ##STR00001##
a preparation process, uses thereof and compositions containing the same, wherein R.sub.1 and R.sub.2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R.sub.1 and R.sub.2 ranges from 2 to 7, and where R.sub.1 and R.sub.2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R.sub.1, R.sub.2 and the carbon atom to which R.sub.1 and R.sub.2 are attached has a degree of branching equal to 0, 1 or 2.

The invention relates to a compound of following formula (I): ##STR00001##
a preparation process, uses thereof and compositions containing the same, wherein R.sub.1 and R.sub.2, represent, independently of one another, a linear, branched or cyclic, saturated or unsaturated hydrocarbon-based group comprising from 1 to 6 carbon atoms, where the sum of the carbon atoms of the groups R.sub.1 and R.sub.2 ranges from 2 to 7, and where R.sub.1 and R.sub.2 may also form, together and with the carbon atom bearing them, a 6-, 7-, or 8-membered ring; n is an integer of between 1 and 100, limits included; A represents a sequence of one or more units chosen from ethylene oxide, propylene oxide, butylene oxide units and mixtures thereof; the group formed by R.sub.1, R.sub.2 and the carbon atom to which R.sub.1 and R.sub.2 are attached has a degree of branching equal to 0, 1 or 2.