Aqueous silicone dispersion, coating film and cosmetic
A silicone and dispersion technology, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve the problem of no elongation of the film
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Embodiment 1
[0147] The kinematic viscosity represented by the following formula (A-1') is 130mm 2 / s, 271 g of dimethylpolysiloxane containing vinyl groups at both ends of the molecular chain with a vinyl group content of 0.035 mol / 100 g, represented by the following formula (A-2'), and a kinematic viscosity of 430 mm 2 / s, 137 g of hydrosilyl group-containing methylhydrogen polysiloxane having a hydrosilyl group weight of 0.040 mol / 100 g and a kinematic viscosity of 35 mm represented by the following formula (A-3') 2 92 g of straight-chain dimethylhydrogen polysiloxane containing hydrosilyl groups at both ends of the molecular chain with a hydrosilyl group weight of 0.066 mol / 100 g is packed into a glass beaker with a capacity of 1 liter. The phase mixer was stirred at 2000 rpm to dissolve. Among them, with respect to one vinyl group of the vinyl group-containing dimethylpolysiloxane of the following formula (A-1'), the hydrosilyl group-containing methyl hydrogen of the following formul...
Embodiment 2
[0156] To the aqueous silicone dispersion obtained in the same manner as in Example 1, 53 g of a colloidal silica aqueous dispersion (trade name: COSMO S-40, manufactured by Nikki Catalyst Chemicals Co., Ltd.) with a concentration of 40% was added (relative to organic 100 parts by mass of the silicone elastomer and 5.3 parts by mass of the colloidal silica) were stirred for 10 minutes to obtain an aqueous silicone dispersion. The amount of water in the aqueous silicone dispersion was 96.9 parts by mass relative to 100 parts by mass of the total of the above-mentioned component (A) and colloidal silica.
[0157] The resulting aqueous silicone dispersion was dried by the method described above, resulting in a sticky sheet. Asker C rubber has a hardness of 26, an elongation at break of 130%, and a tensile strength of 0.15 MPa at break.
[0158] About 0.02 g of the obtained aqueous silicone dispersion was dropped on the nail using a glass pipette, and spread to a size of about 2 ...
Embodiment 3
[0160] To the aqueous silicone dispersion obtained in the same manner as in Example 1, 111 g of a colloidal silica aqueous dispersion (trade name: COSOMP S-40, manufactured by Nikki Catalyst Chemicals Co., Ltd.) with a concentration of 40% was added (relative to organic 100 parts by mass of the silicone elastomer and 11.1 parts by mass of the colloidal silicon dioxide were stirred for 10 minutes to obtain an aqueous silicone dispersion. The amount of water in the aqueous silicone dispersion was 100.8 parts by mass relative to 100 parts by mass of the total of the above-mentioned component (A) and colloidal silica.
[0161] The resulting aqueous silicone dispersion was dried by the method described above, resulting in a sticky sheet. The rubber hardness of A-type durometer is 16, the elongation at break is 230%, and the tensile strength at break is 0.36MPa.
[0162] About 0.02 g of the obtained aqueous silicone dispersion was dropped on the nail using a glass pipette, and spre...
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