494 results about "Hydroxybenzoate" patented technology

Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof, and respective minor amounts of an over-based metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and at least 1 mass % of a hydrocarbyl-substituted carboxylic acid, anhydride, ester or amide thereof. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited.

Patients susceptible to or suffering from conditions and disorders, such as central nervous system disorders, are treated by administering to a patient in need thereof compositions that are hydroxybenzoate salts of E-metanicotine-type compounds. The formation of hydroxybenzoate salts of the E-metanicotine compounds is also useful in purifying the E-metanicotine compounds, as the hydroxybenzoate salts tend to crystallize out, leaving impurities such as Z-metanicotine compounds, and compounds where the double bond has migrated, in solution. If desired, the hydroxybenzoate salts can be converted to either the free base (the E-metanicotine) or to another pharmaceutically acceptable salt form.

The invention discloses a preparation method of 3,6-dichloro-2-hydroxybenzoic acid, which sequentially comprises the following steps: 1) salifying 2,5-dichlorophenol; 2) carboxylation: transferring the 2,5-dichlorophenate solution into a high-pressure reaction kettle, adding a cocatalyst, and introducing CO2 to carry out high-pressure carboxylation reaction to obtain the reaction product containing 3,6-dichloro-2-hydroxybenzoate, wherein the cocatalyst is composed of potassium carbonate and activated carbon; 3) refinement: after cooling the reaction product containing 3,6-dichloro-2-hydroxybenzoate obtained in the step 2) to room temperature, adding an alkali solution, regulating the pH value to 11-13, uniformly stirring, filtering to recover activated carbon, stratifying the filtrate, and taking the water phase; and adding an acid solution into the water phase, regulating the pH value to 1-3, carrying out vapor distillation to recover the 2,5-dichlorophenol, cooling to crystallize, carrying out vacuum filtration, and drying to obtain the 3,6-dichloro-2-hydroxybenzoic acid.

The invention relates to ultraviolet-proof polyester-cotton fabric and a preparation method thereof. The ultraviolet-proof polyester-cotton fabric is prepared by blending the following raw materials in parts by weight: 60-80 parts of polyester fiber, 40-60 parts of long-staple fiber, 5-15 parts of polyamide fiber, 5-15 parts of linen fiber, 5-15 parts of ramie fiber and 5-15 parts of apocynum fiber, and then treating by using an antibacterial ultraviolet-proof finishing solution, wherein the antibacterial ultraviolet-proof finishing solution contains 5-10 parts of chitosan, 5-10 parts of tea polyphenol, 0.5-3 parts of 2-hydroxy-4-methoxy diphenylketone, 0.5-3 parts of phenyl-o-hydroxybenzoate, 0.5-2 parts of sodium tripolyphosphate, 5-8 parts of myristyl trimethyl ammonium chloride, 5-10 parts of polyethylene glycol, 5-15 parts of nano-titanium dioxide, 3-8 parts of diethanolamide cocoate and 5-10 parts of water-based polyurethane. The ultraviolet-proof polyester-cotton fabric has a super-strong antimicrobial and ultraviolet-proof efficacy, is anti-pilling, breathable, good in moisture absorption, soft, comfortable and durable, and is very suitable for production of various kinds of overclothes, shirts, working clothes, curtains and the like.

A process for preparing the 4,4'-bihydroxybiphenyl methaneone includes mixing phenyl p-hydroxybenzoate with catalyst in organic solvent, heating while stirring, reaction, separating the resultant and recrystallizing.

The invention discloses a skin base solution and a preparation method thereof, belonging to the field of cosmetics. The skin base solution comprises deionized water, xanthan gum, 1,3-propanediol, 1,3-butanediol, sodium pyrrolidonecarboxylate, sodium hyaluronate, ethylene diamine tetraacetic acid, allantoin, methyl-p-hydroxybenzoate, polyoxyethylene (40) hydrogenated castor oil, phenylpropanol, apple stem cell essence, alpine rose stem cells, platinum matrix-EM, lipidure pmb, cactus stoste and rose damascus essential oil.. Active substance essences in the formulation can excite activity of a specific gene again, thereby promoting synthesis of repairing protein. After the skin base solution is used, people's skin becomes fine and smooth and is more uniform and is remarkably improved.

The invention relates to an article containing (A) a water-insoluble substrate and (B) containing an aqueous phase and N-(3-chloroallyl)hexaminium chloride. According to one preferred embodiment of the invention, the composition also contains at least one C1-C4 alkyl para hydroxybenzoate and/or at least one ethylenediamine-tetraacetic acid salt. The article may especially constitute a wipe for cleansing and/or removing makeup from the facial and/or body skin, and also for removing makeup from the eyes. The wipe may be in the form of a moist or dry wipe.

Disclosed is a topical skin care composition, and method for its use, that includes 55 to 65% by weight of water, 15 to 20% by weight of a combination of 3,3,5-Trimethylcyclohexyl 2-hydroxybenzoate (homosalate), 1-(4-Methoxyphenyl)-3-(4-tert-butylphenyl)propane-1,3 -dione (avobenzone), 2-ethylhexyl 2-hydroxybenzoate (octisalate), and 2-ethylhexyl 2-cyano-3,3-diphenyl-2-propenoate (octocrylene), 3 to 4% by weight of distearlydimonium chloride, and 1 to 3% by weight of a combination of euterpe oleracea fruit extract, punica granatum sterols, caprooyl tetrapeptide-3, tocopherol or tocopherol acetate, and niacinamide, wherein the composition has a sun protection factor of at least 15 or about 15 to 20.

The invention discloses artificial feed for Spodoptera frugiperda larvae and a preparation method and application thereof. The artificial feed for Spodoptera frugiperda larvae is made from, by weight,200-300 parts of corn meal, 80-120 parts of soybean meal, 10-30 parts of yeast powder, 10-20 parts of milk powder, 5-15 parts of vitamin complex, 6-9 parts of ascorbic acid, 2-6 parts of methyl 4-hydroxybenzoate, 2-5 parts of sorbic acid, 10-30 parts of agar powder, and 1500-2000 parts of sterile water. The invention also provides a method of feeding with the artificial feed. The artificial feedfor Spodoptera frugiperda larvae and the preparation method and application thereof have the advantages that materials are easy to attain, the cost is low, preparation is convenient, storage time is long, nutrition is complete, feeding effect is good, the artificial feed is very practical, and large-scale feeding of Spodoptera frugiperda larvae is benefited.

The invention discloses a preparation method and an application of a polyvinyl alcohol nonwoven fabric finishing agent. The finishing agent comprises, by weight, 10-20 parts of polyvinyl alcohol, 3-8parts of hydroxypropyl cellulose (HPC), 5-20 parts of amide modified polyol, 3-15 parts of alkyl glycosides, 5-10 parts of an inorganic filler, 1-5 parts of hydroxyethyl urea, 0.3-1.0 part of a penetrant, 0.3-1.0 part of imidazolidinyl urea, 0.1-0.3 part of p-hydroxybenzoate and 100 parts of water. The raw materials are mixed and heated to obtain the finishing agent. The finishing agent is suitable for the processes of padding finishing, sizing finishing, coating finishing and the like of a polyvinyl alcohol nonwoven fabric; and the polyvinyl alcohol nonwoven fabric is dipped in or coated withthe finishing agent, and then is dried, set and embossed. The nonwoven fabric finished with the finishing agent has improved heat-sealing performance and enhanced mechanical properties, so the hand feeling of the finished nonwoven fabric is also improved.

The invention relates to liquid crystal epoxide resin wit branch chain, its (1) is shown at the right: R is alkyl containing 1-16 carbon atom, m=1-10, also it relates to the method to prepare the compound, the combination and its application. The invention has the characteristic that the product etherealized and then esterified of methyl p-hydroxybenzoate and alkenyl alkyl halide has reaction with the product of 2,5-dihydroxy-benzoic acid and alkyl alcohol or alkyl halide, the compound generated then reacts with peroxiding agent, making the liquid crystal epoxide resin with branch chain, and the productivity is as high as 70-85%, much higher than the conventional dirct esterification method. The invention has the performance of liquid crystal, and lower melt point than that without branch chain, can be solified by many curing agent in lower temperature for producing electronic enclosing material and shape-mambering material with outstanding performance.

The invention relates to a process for preparing nano rare earth m-hydroxy benzoic acid 8-hydroxyquinoline antibacterial agent which comprises, mixing 0.01 mol of sodium m-hydroxybenzoate with 0.02 mol of 8-hydroxyquinoline with a magnetic stirrer to obtain mixed ligand solution, instilling the mixed ligand solution into 0.01 mol REC136 H2O at 40-70 deg. C, adjusting pH to above 6, reacting 2-6 hrs, ageing 0.5-4 hrs, filtering by suction, removing chloride ions (Cl-) through secondary distilled water washing, vacuum drying 4-10 hours.

The invention discloses organic infant moisturizing cream and a preparation method thereof. The organic infant moisturizing cream is prepared from the following raw materials: hydrogenated polyisobutene, glycerol, butanediol, a matricaria chamomilla extract, a calendula extract, butyrospermum parki fruit grease, olea europaea fruit oil, caprylic/capric triglyceride, polydimethylsiloxane, cetearylalcohol, cetyl alcohol, glyceryl stearate, PEG-75 stearate, tocopheryl acetate, panthenol, sodium hyaluronate, ceteth-20, steareth-20, Sepigel EG, EDTA disodium, xanthan gum, methylparaben, propyl 4-hydroxybenzoate, phenoxyethanol and deionized water. According to the organic infant moisturizing cream and the preparation method thereof disclosed by the invention, the organic infant moisturizing cream is added with the natural organic components, the formula is reasonable, properties are mild and non-irritating, the organic infant moisturizing cream has a good moisturizing and moisture-preserving effect, and the obtained organic infant moisturizing cream is suitable for the tender skin of infants.

The invention discloses a whitening and moisturizing freckle removal lotion and a preparation method thereof. The whitening and moisturizing freckle removal lotion comprises the following substances: wheat germ oil, grape seed oil, olive oil, rose corn oil, horse oil, snow lotus herb sunflower seed oil, synthetic silk oil, cucumber extract liquid, a bletilla striata extracting solution, a myosotis extracting solution, a white silkworm extracting solution, a centella extracting solution, a rosemary extracting solution, pearl powder, a cell activator, rose essential oil, distilled water, sodium alginate, propylene glycol, methyl 4-hydroxybenzoate and ethyl hydroxybenzoate. The whitening and moisturizing freckle removal lotion is good in effect and high in security; as the extracting solutions of various herbs are adopted, the whitening and moisturizing freckle removal lotion is mild in nature, good in stability, moist and nourished, and fragrant in smell, can supply nutrient substances for the face skin, remove freckles and yellow, deeply nourish the skin and make the skin moist and elastic; and meanwhile, the prepared whitening and moisturizing freckle removal lotion is milk-white, appropriate in viscosity, fine, smooth and uniform, and favorable in ductility property, and feels cool and comfortable.

The invention provides a preparation method of mythyl p-hydroxybenzoate molecular imprinting composite membrane and application thereof. A molecular imprinting composite preparation method and an application of mythyl p hydroxybenzoate in separation of methyl salicylate belong to the fields of material preparation technology and separating technology. polyvinylidene fluoride micro filter membrane is used as a substrate, and mythyl p-hydroxybenzoate (MP) which is impurity in methyl salicylate is used as a template molecule, and methacrylic acid (MAA) is used as a functional monomer, and N, N'-methylene bisacrylamide (MPAA) is used as a cross-linking agent, and azodiisobutyronitrile (AIBN) is used as an initiator; preparation of mythyl p-hydroxybenzoate molecular blotting membrane (MIMMP), static adsorption experiment and selective penetration experiment are used for researching selective identification property of the preparative molecular imprinting membrane. The result shows that, according to the invention, the obtained mythyl p-hydroxybenzoate molecular imprinting composite membrane has super mythyl p-hydroxybenzoate molecule identification performance.

Disclosed is a method for asymmetrical hydrogen transfer of alpha-imino keton for synthesizing chirality salbutamol which comprises, using 5-acetyl methyl salicylate as raw material, oxidizing with oxidation agent into 5-(1,1-)dihydroxy)-acetyl-2-hydroxybenzoate, then reacting with tert-butylamine, obtaining alpha-imine ketone compound. Then using (S,S)-Ru-TsDPEN or (R,R)-Ru-TsDPEN as catalyst, subjecting the alpha-imine ketone compound to asymmetrical hydrogen migration in formylic acid, triethylamine and inert organic solvent system, thus obtaining the optically pure product of (R) or (S)-5-[2-[(1,1-dimethylethyl)amino]-1-ethoxyl]-2-hydroxybenzoate, finally deoxidizing the (R) or (S)-5-[2[(1,1-dimethylethyl)amino]-1-ethoxyl]-2-hydroxybenzoate to obtain the optically pure (R) or (S) chiral salbutamol.

The present invention is directed to a lubricating oil additive containing a vicinal diol and a particular detergent blend typically is low viscosity base oils whereby exhibiting improved fuel economy. In this respect, disclosed is a lubricating oil composition comprising: a major amount of base oil of lubricating viscosity; a friction modifier which is selected from the group consisting of C10-C30 alkane 1,2-diols and C10-C30 alkene 1,2-diols; an overbased alkyl alkaline earth metal hydroxybenzoate detergent having a metal ratio less than 3.0; and an overbased alkyl calcium sulfonate or an overbased alkyl calcium hydroxybenzoate having a metal ratio of 3.5 or greater.

The invention discloses a jelly-like foundation makeup and a preparation method of same. The foundation makeup includes the following components: titanium dioxide, iron oxide yellow, iron oxide red, iron oxide black, pearl powder, zinc oxide, boron nitride, silica, isononyl isononanoate, hydrogenated polyisobutene, polydimethylsiloxane, decamethylcyclopentasiloxane, Jojoba seed oil, sorbitan sesquioleate, tocopheryl acetate, glycerol, butanediol, allantoin, sodium hyaluronate, acrylate/C10-30 alkanol acrylate crosslinked polymer, triethanolamine, PEG-240/HDI compolymer bis-decyl tetradecanol polyether-20 ether, methyl 4-hydroxybenzoate, propyl 4-hydroxybenzoate, phenoxyethanol, essences, and the balanced being deionized water. The jelly-like foundation makeup, through dual-emulsification technology, has long-lasting makeup effects, is water-proofing and oil-proofing, has no greasy sense and integrates moisturizing, concealing, isolating and sun-screening and the like functions. The preparation method can achieve large-scale mass production.

Polyolefin photovoltaic (PV) backsheets comprise a polypropylene layer stabilized with (A) at least one hindered amine with 2,2,6,6-tetraalkylpiperdine or 2,2,6,6-tetraakylpiperazinone, either or both in combination with a triazine moiety, (B) a thioester, and, optionally, (C) at least one hindered hydroxybenzoate, and/or (D) an ortho hydroxyl triazine compound. These PV backsheets exhibit a low flame spread index of <100 without the use of FR agents, and the polypropylene layer exhibits good weatherability while providing the required long term heat aging performance necessary for PV modules.