30 results about "Methyl para-hydroxybenzoate" patented technology

The invention belongs to the technical field of gasoline additives, and particularly relates to an energy-saving emission reduction agent for gasoline and a preparation method thereof. The energy-saving emission reduction agent for gasoline comprises the following components: tetrahydrofuran, ethylene glycol monoethyl ether, tributyl phosphate, polyvinylpyrrolidone, carboxylic ester, dipentene, N, N-dimethylacetamide, 2-methylnaphthalene, and methyl 4-hydroxybenzoate. According to the energy-saving emission reduction agent, on the basis that the existing gasoline is taken as the raw material fuel oil, the chemical component of the gasoline is changed, the characteristics of the traditional gasoline are improved, so that the gasoline combusts completely, the compatibility and stability of methyl alcohol and ethyl alcohol with gasoline are improved, the power of an automobile is improved, engine abrasion is reduced to the maximum degree or prevented, the sealing performance of an air cylinder is improved and repaired automatically, and the functions of saving energy, reducing emission and prolonging service life of the engine are realized; the emission load of compounds such as CO, HC and NO is greatly reduced, and dual purposes of energy conservation and environment protection are achieved.

The invention provides a toothpaste containing various plant extracts, which is composed of cistanche extract, reed root extract, hop extract, apocynum extract, sorbitol, liquid flavor, methylparaben, paraben Propyl formate, polyethylene glycol-400, xanthan gum, titanium dioxide, silicon dioxide, sodium lauryl sulfate, and water, and a preparation method is also provided, adding cistanche extract, hops extract, and Robbie to water Hemp extract, add xanthan gum and stir after heating, add polyethylene glycol-400 and sorbitol and stir, add titanium dioxide, silicon dioxide, sodium lauryl sulfate and reed root extract and stir in vacuum, add methyl hydroxybenzoate The liquid essence solution of ester and propyl p-hydroxybenzoate is stirred in vacuum to obtain toothpaste containing various plant extracts. Compared with the currently used chemical fungicides with potential safety concerns, the natural plant extract used in the present invention has the active ingredient of a plant-derived natural product, which is safe to use, has no side effects and has obvious effects.

The invention provides a quick-acting hemostatic yarn for promoting wound healing and its preparation method and application. The raw materials for the preparation of the quick-acting hemostatic yarn include the following components: 35-60 parts by weight of sodium carboxymethyl cellulose, 30-60 parts by weight of polyurethane elastomer 50 parts by weight, 5-20 parts by weight of n-octyl α-cyanoacrylate, 10-30 parts by weight of chitosan, 10-20 parts by weight of methyl p-hydroxybenzoate, 15-25 parts by weight of propyl p-hydroxybenzoate , 5-10 parts by weight of xanthan gum; wherein said chitosan is the mixture of lauroyl sulfate deacetyl chitosan and carboxymethyl chitosan; the quick-acting hemostatic yarn prepared by the present invention has better hemostatic effect and The antibacterial rate, and can also provide a suitable moist recovery environment for the wound, without sensitization to the skin.

The invention discloses a solid preparation of cefuroxime axetil, which comprises an active ingredient of a drug, cefuroxime axetil, and an auxiliary material, wherein the auxiliary material includes a lubricant, and the lubricant is selected from glyceryl behenate, sodium stearyl fumarate, and talcum powder At least one of the preservative-free. The cefuroxime axetil product of the original research company is added with preservatives such as methyl p-hydroxybenzoate, propyl p-hydroxybenzoate, sodium benzoate, and hydrogenated vegetable oil. As people pay more and more attention to the safety of food and drugs, this The safety of several preservatives and hydrogenated vegetable oils is controversial. Therefore, in order to eliminate patients' concerns about preservatives and hydrogenated vegetable oils and reduce potential safety risks, the present invention avoids the use of preservatives through research, and adopts glyceryl behenate instead of hydrogenated vegetable oils, and obtains a patent with British kudzu Cefuroxime Axetil Tablets produced by LansuSmithKline Co., Ltd. has the same bioavailability as the drug, and the drug is suitable for commercial production.

The invention belongs to the field of cosmetics, in particular to a wine lees facial mask and a preparation method thereof: the following raw materials are included in parts by weight: dry powder: 35-45 parts of wine lees powder, 2-12 parts of sodium alginate, diatomaceous earth 40‑60 parts, 0.01‑0.3 parts of methylparaben; liquid reagent: 2‑15 parts of PEG‑40 hydrogenated castor oil, 1‑5 parts of glycerol, 2‑10 parts of 1,2‑propylene glycol, pure water 75‑90 servings. The present invention also provides a preparation method for the above-mentioned wine lees facial mask. Compared with the prior art, the present invention has simple assembly and simple preparation methods, and the simple assembly and preparation methods enable the efficacy of wine lees to be better exerted. And better play the active substances in the lees.