Patent ID: 7534369

Claim:
A method of producing a liquid crystal emulsion composition, comprising the steps of: (i) admixing 3 to 6 parts by weight of a hydrophilic surfactant A having an HLB of 10 to 20 which is selected from polyoxyethylene polyoxypropylene alkyl ethers of general formula HO(C 2 H 4 O) n —(C 3 H 6 O) m R, wherein n is 15 to 50, m is 4 to 16, and R is an alkyl group having 12 to 24 carbon atoms, with 3 to 6 parts by weight of at least one kind of hydrophilic surfactant B having an HLB of 13 or more which is selected from polyoxyethylene fatty acid derivatives comprising a polyoxyethylene group (C 2 H 4 O) n , wherein n is 15 to 50, and an alkyl group, wherein the number of carbon atoms is 5 to 24; (ii) admixing the resulting admixture obtained in step (i) with 2 to 5 parts by weight of a lipophilic surfactant C; (iii) admixing 8 to 17 parts by weight of the resulting mixture obtained from step (ii) with 5 to 26 parts of an oil component D; (iv) admixing the resulting admixture obtained from step (iii) with a mixture obtained by mixing 40 to 80 parts by weight of a water-soluble polyvalent alcohol E and 8 to 40 parts by weight of water F; (v) heating and homogeneously mixing the resulting admixture obtained from step (iv); and (vi) cooling the resulting product obtained in step (v).