A quaternary ammonium compound represented by the following formula (1):
[(R1).sub.m(R2).sub.4-mN.sup.+].sub.nX.sup.n(1) wherein each R1 independently represents an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; an aryl group having 6 to 20 carbon atoms; an aralkyl group where an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms is substituted with at least one aryl group having 6 to 20 carbon atoms; or an alkylaryl group where an aryl group having 6 to 20 carbon atoms is substituted with at least one unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; each R2 independently represents a group having 2 to 60 carbon atoms and 2 to 30 oxygen atoms, the group represented by the following formula: (RO)k-H, wherein R represents a substituted or unsubstituted alkyl group and k represents a natural number of 2 or more.

A quaternary ammonium compound represented by the following formula (1):
[(R1).sub.m(R2).sub.4-mN.sup.+].sub.nX.sup.n(1) wherein each R1 independently represents an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; an aryl group having 6 to 20 carbon atoms; an aralkyl group where an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms is substituted with at least one aryl group having 6 to 20 carbon atoms; or an alkylaryl group where an aryl group having 6 to 20 carbon atoms is substituted with at least one unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; each R2 independently represents a group having 2 to 60 carbon atoms and 2 to 30 oxygen atoms, the group represented by the following formula: (RO)k-H, wherein R represents a substituted or unsubstituted alkyl group and k represents a natural number of 2 or more.

The present invention discloses a polyvalent metal ion compound salt of N,N-dimethylglycine and organic acid or a solvate thereof, and use thereof in preparing novel feed additives and feed; the present invention also discloses a composition comprising the polyvalent metal ion compound salt of N,N-dimethylglycine and organic acid or the solvate thereof. The polyvalent metal ion compound salt of N,N-dimethylglycine and organic acid or the solvate thereof provided by the present invention has improvement effect on animal product performance such as improving animal weight gain and reducing feed conversion ratio, showing effects similar to or higher than that of sodium N,N-dimethylglycinate.

The present invention relates to a method for preparing a glutamate-based surfactant. More specifically, the present invention provides a method for preparing a glutamate-based surfactant, the method being very economical and being capable of mass production of the glutamate-based surfactant.

Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc oxide and amino acid hydrochloride in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.

Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc oxide and amino acid hydrochloride in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.

Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc halide and amino acid free base in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.

Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc halide and amino acid free base in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.

The present disclosure generally relates to metal complex or metal chelate compositions comprising minimal nanoparticles wherein the compositions maintain flowability.

A quaternary ammonium compound represented by the following formula (1):

[(R1).sub.m(R2).sub.4-mN.sup.+].sub.nX.sup.n(1)

wherein each R1 independently represents an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; an aryl group having 6 to 20 carbon atoms; an aralkyl group where an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms is substituted with at least one aryl group having 6 to 20 carbon atoms; or an alkylaryl group where an aryl group having 6 to 20 carbon atoms is substituted with at least one unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms;

each R2 independently represents a group having 2 to 60 carbon atoms and 2 to 30 oxygen atoms, the group represented by the following formula:

(RO)k-H, wherein R represents a substituted or unsubstituted alkyl group and k represents a natural number of 2 or more.