Acrylic-basd coplymer compositions for cosmetic and presonal care
A hair care composition, composition technology, applied in skin care preparations, cosmetics, cosmetics, etc., which can solve the problems of undisclosed use, undisclosed aqueous carrier solvent or excipient components, etc.
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Embodiment 1 to 8
[0068] Examples 1 to 8, Comparative Examples A to D
[0069] Preparation of Copolymers by Batch Emulsion Polymerization
[0070] In 1 liter of Mortonized cracking resin flask (split resin flask), add 100 grams of monomers (the details are listed in the following table I, the amount of all monomers listed are grams), 80 milligrams of carbon tetrabromide, 124.7 grams deionized water, 200 mg potassium persulfate, 64 mg sodium metabisulfite, 1 gram sodium dodecylbenzene sulfonate, and 2.5 grams Mazon SAM 211 alkylene polyalkoxy ammonium sulfate copolymerizable Surfactant (available from PPG Industries, Pittsburgh, PA). The flask was topped and attached with thermocouple, nitrogen gas inlet and mechanical stirrer. The headroom of the flask was purged with nitrogen at a rate of 1 liter per minute while the contents were heated to about 30° C. with an infrared lamp and stirred at a rate of 250 revolutions per minute (rpm). About 1 g of a solution of 28 mg of ferrous sulfate heptah...
Embodiment 9
[0084] Tetrapolymers prepared by semi-continuous emulsion polymerization
[0085] A solution of 1.0 g carbon tetrabromide was prepared in a mixture of 275 g 2-EHA, 200 g IBOA, 12.5 g MAA and 12.5 g AA to obtain 500 g containing 55 / 40 / 2.5 / 2.5 parts 2-EHA / IOBA / MAA / AA monomer solution. Of the total monomer solution, 50 grams of this was added to a 2 liter cracked resin flask along with 390 grams of deionized water and 0.5 grams of sodium dodecylbenzenesulfonate. The flask was topped and attached with thermocouple, nitrogen gas inlet and mechanical stirrer. The contents were heated to about 60°C with an infrared lamp and stirred at a rate of 350 revolutions per minute (rpm). A solution of 1.25 grams of potassium persulfate in 20 grams of deionized water was added, the flask was sealed and evacuated four times, interrupted each time with nitrogen. The temperature of the flask was kept at 60°C for 20 minutes, and then heated to 80°C over 10 minutes to obtain a seed polymer. A p...
Embodiment 10 and 11
[0087] Preparation of Terpolymers by Semicontinuous Solution Polymerization
[0088] According to the procedure of Example 9, polymerize a monomer solution of 300 grams of 2-EHS, 175 grams of IBOA, 25 grams of MAA and 1 gram of carbon tetrabromide (Example 10) or 250 grams of 2-EHA, 225 grams of IBOA, 25 grams of Monomer solution of AA and 1 g of carbon tetrabromide (Example 11). The monomer solution of Example 10 contained 60 / 35 / 5 parts 2-EHA / IBOA / MAA. The monomer solution of Example 11 contained 50 / 45 / 5 parts 2-EHA / IBOA / AA.
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