121 results about "Carbamate esters" patented technology

The present invention provides methods of treating skin disorders includes delivering to a mammal a composition containing a compound of formula I, or tautomers thereof, in a regimen, wherein formula I is:

and wherein R¹-R⁵ and Q¹ are defined as described herein. Specifically, methods for treating acne, hirsutism, and conditioning the skin are described. Also provided are novel PR modulators of formula II.

The invention provides eTEC linked glycoconjugates comprising a saccharide covalently conjugated to a carrier protein through a (2-((2-oxoethyl)thio)ethyl)carbamate (eTEC) spacer, immunogenic compositions comprising such glycoconjugates, and methods for the preparation and use of such glycoconjugates and immunogenic compositions.

The present invention discloses a silk-screen printing electrode sensor preparation method based on ionic liquid-multi-wall carbon nano-tube modification, and belongs to the technical field of biological sensors. According to the method, an ionic liquid-multi-wall carbon nano-tube nanometer material is prepared and then coats the surface of a silk-screen printing carbon electrode in a dropwise manner, and then acetylcholine esterase coats the surface of the ionic liquid-multi-wall carbon nano-tube nanometer material modified silk-screen printing work electrode in a dropwise manner so as to prepare the acetylcholine esterase biological sensor for detecting organic phosphorus and carbamate pesticides. According to the present invention, the prepared sensor has characteristics of simple process, easy operation, low cost, high detection sensitivity, strong electrical signal and simple electrode pretreatment, and is suitable for detection of pesticide residues, wherein the detection limit is 0.05 [mu]g/L.

The invention discloses a polyethylene/polybutylece terephthalate (PBT) coated coconut shell powder particle blending foam material. The material is prepared from the following materials in part by weight: 60 to 80 parts of LLDPE (Linear low density polyethylene), 20 to 40 parts of HDPE (high-density polyethylene), 30 to 40 parts of PBT, 10 to 15 parts of tourmaline, 15 to 20 parts of water glass, 5 to 10 parts of coconut shell powder, 1 to 2 parts of anilino-methyl-triethoxysilane, 5 to 8 parts of decabromodiphenyl oxide, 4 to 6 parts of di-butyl nylonic acid ester, 5 to 8 parts of epoxy octyl stearate, 3 to 5 parts of foaming agent, 1 to 2 parts of diperoxycarbamate, 1 to 2 parts of zinc oxide, 1 to 2 parts of calcium stearate, 0.5 to 1 part of dibasic lead phosphite, 2 to 3 parts of glycol tristearate, 3 to 5 parts of modified tree ash, and 1 to 2 parts of antioxidant 2461. The polyethylene/PBT coated coconut shell powder particle blending foam material is light in weight, flexible, high in strength, good in resilience, ideal in foaming effect, uniform in cell, compact, high in flame resistance, ageing resistant and durable.

The invention relates to a preparation method of an overall hydrophobic timber. The timber is dipped by using alkyl isocyanate and dimethylformamide mixed solution, so that alkyl is grafted to a cell wall of the timber through a carbamate key. The method uses a self micron/nanometer roughness structure of the timber as basis, and grafts the alkyl to the cell wall of the timber through the carbamate key to form a low-surface-energy substance; a surface water drop contact angle thereof is about 147-151 degrees; the timber is sawn off in the cross section direction; and a water drop contact angle on the internal surface is about 147 degrees. The overall hydrophobic timber has the performances of mechanical wear resistance and chemical corrosion resistance; and in addition, the related preparation method is simple in steps, excellent in controllability, short in preparation period and easy to realize reaction conditions.

The invention relates to a diesel engine oil composition and application thereof, and mainly solves the problems of insufficient anti-wear and extreme pressure performance of internal combustion engine oil in the prior art. The diesel engine oil composition comprises the following components by weight: a) 2-5 parts of a metal detergent, which is formed by compounding a sulfonate and sulfurized alkyl phenolate; b) 1-5 parts of a polyisobutylene succinimide ashless dispersant; c) 1-3 parts of an anti-wear preservative, which is formed by compounding long chain primary alcohol based zinc dialkyldithiophosphate and primary alcohol based zinc dialkyl dithiophosphate; d) 0.5-3 parts of a composite antioxidant, which is formed by compounding an amine type antioxidant and a phenolic ester antioxidant; e) 0.5-3 parts of an antiwear agent, which is one of or compounded by several of phosphorothioates, thiocarbamates and antimony thiocarbamate; and f) 85-105 parts of base oil. The technical scheme adopted by the invention well solves the problems, and can be used in a vehicle diesel engine system.

The invention provides a process method for separating talc and chalcopyrite through a three-step method and a collecting agent used in the process method. The method comprises the steps of carrying out ore grinding, carrying out first-step roughing, carrying out second-step concentration, and carrying out third-step table reselection and regrinding operation. The process method aims at separationof the talc and the chalcopyrite, the preferential copper separation technological process is adopted for the first time under the condition that a special-effect talc inhibitor is not added, and effective separation of the talc and the chalcopyrite is achieved. According to the process method, the collecting agent TB-1 formed by mixing isobutyl xanthate propionitrile ester, N-allyl-O-alkyl thiocarbamate and Spans type sorbitan ester is adopted to strengthen flotation of the chalcopyrite, the thickness of a foam layer is adjusted through the defoaming performance of the collecting agent TB-1,and the relative floating speed of the talc and the chalcopyrite is changed; and the flotation and reselection combined technological process is adopted, and effective separation of talc and chalcopyrite is achieved through three steps. The flotation reagent adopted in the process method has the characteristics of low toxicity or no toxicity, environment friendliness, good effect and the like, and an environment-friendly and high-efficiency process method for separating the talc and the chalcopyrite is provided.

The present invention provides novel acyl, sulfur, carbamate, thiocarbamate, and related compounds that inhibit cytokine-mediated inflammatory responses in cultured cells and improve bone tissue in animal models of arthritis disrupts, and lowers blood glucose levels in animal models of type 2 diabetes. The present invention discloses that the compound can be used in various treatments, including the treatment of diabetes, insulin resistance, inflammation, inflammatory diseases, immune diseases, and cancer.