- Preparation method for tetradecyl methylacrylate
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The invention relates to a lubricant, specifically to a preparation method for tetradecyl methylacrylate. The preparation method for the tetradecyl methylacrylate comprises the preparation step of weighing the following raw materials for subsequent usage: methacrylic acid, which is a product from the Tianjin Yongda chemical reagent development center; acrylamide and an analytical reagent, which are products from the Tianjin Fuchen chemical reagent plant; hydroquinone, N-N-dimethylformamide (DMF), absolute ethyl alcohol and an analytical reagent, which are products from the Beijing chemical plant; and p-toluenesulfonic acid, tetradecanol and an analytical reagent. The tetradecyl methylacrylate prepared by using the method provided by the invention has the following advantages: through addition of a pour point depressant AA, physical and chemical properties of three base oils are basically unchanged; and as mentioned in the specification, AA can significantly reduce the condensation point and the viscosity of the base oils, so the pour point depressant AA can effectively improve the low-temperature fluidity and the viscosity-temperature characteristic of the base oils, and has littleeffect on other properties of the base oils.
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Paragraph 0010; 0011; 0012; 0013
(2018/05/01)
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- Cosmetic emulsions containing acrylamide copolymer
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Water-in-oil emulsions wherein the emulsifier is a copolymer of 1 mol of acrylamide with 2 to 20 mols of at least one ethylenically unsaturated ester copolymerizable therewith selected from the group consisting of vinyl alkylcarboxylates, alkyl and cycloalkyl acrylates, and alkly and cycloalkyl methacrylates, wherein the alkyl and cycloalkyl groups contain 6 to 24 carbon atoms, and the continuous phase is a cosmetically acceptable oil, which can be prepared easily, safely and inexpensively. The emulsions are substantially odorless and are cosmetically acceptable for the care of the skin.
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