729 results about "Mercaptan compound" patented technology

The invention discloses a super-hydrophobic and super-oleophylic oil-water separating mesh membrane and a preparation method thereof. The method comprises the following steps of: (1), cleaning a fabric mesh and drying the cleaned fabric mesh; (2), dissolving dopamine hydrochloride and trihytdroxy methyl-aminomethane to water to acquire a mixed solution, wherein the pH value of the mixed solution is 8.0-12.0; (3), soaking the dried fabric mesh in the mixed solution, and then getting out the soaked fabric mesh for drying; (4), dissolving mercaptan compound and sodium hydroxide in water to acquire mixed turbid liquid; (5), soaking the fabric mesh acquired in the step (3) in the mixed turbid liquid, reacting the mixture to acquire the oil-water separating mesh membrane. The oil-water separating mesh membrane disclosed by the invention has high bearing pressure to water so that oil can quickly pass, a separating effect is good, the speed is high, and the separating effect on normal hexane, petroleum ether, benzene, gasoline, diesel oil, animal and vegetable oil, crude oil and the like is good. The oil-water separating mesh membrane is non-toxic and harmless, environment-friendly, easy to clean and keep, can be reusable, and has good stability.

A composition described wherein bismuth is chelated by a complexing agent such as a pyrithione or certain other thiol compounds in the form a metal:complexing agent complex. Methods for using the composition as a bacteriocidal, bacteriostatic, antibiofilm, antifungal, and antiviral agent and as a disinfectant and preservative are also provided.

There is provided a lithium polymer secondary cell in which reduction of the film thickness of a solid electrolyte can be realized. The lithium ion secondary cell consists essentially of a composite electrode as a positive electrode having a positive electrode layer, containing a mercaptide compound and a conductive material, carried on a collector; the hydrogen atom of at least one mercapto group in the mercaptide compound being substituted with a lithium atom; a polyelectrolyte; and a lithium negative electrode.

Compounds represented by general formula (1) or salts thereof which have a matrix metalloprotease inhibitory activity and are useful as drugs, wherein the rings A and B represent each an optionally substituted homocycle or heterocycle, etc.; R1s are the same or different and each represents hydrogen, optionally substituted hydrocarbyl, acyl, etc.; X1 represents a bond, optionally substituted divalent aliphatic hydrocarbyl, etc.; X2 represents a bond, optionally substituted divalent aliphatic hydrocarbyl, -O-, etc.; Ys are the same or different represents hydrogen, optionally substituted hydrocarbyl, oxo, etc.; m is 0 or 1; n is an integer of 1 to 3; q1 is an integer of 1 to 2n+4; and q2 is an integer of 0 to 2n+3, provided that q1+q2 is 2n+4.

The present invention relates to (1) a photosensitive composition for color filter black matrix resists, containing (A) a binder resin having a carboxyl group, (B) a compound having an ethylenically unsaturated bond, (C) a photopolymerizing initiator, (D) a thiol compound having two or more mercapto-group-containing groups in which carbon atoms at the a-position and/or n-position with respect to the mercapto group have a substituent, and (E) an organic solvent, and having high sensitivity and excellent storage stability; and (2) color filterblack blackmatrix resist containing (1) the photosensitive composition for color filter black matrix resists and a black pigment (F).

Novel mercaptan compounds, particularly those including a photolabile protecting group, are described as well as methods of using the compounds for the prevention and treatment of ocular damage and disease.

The present invention provides novel glutathione-dependent formaldehyde dehydrogenase that makes possible quantitative measurement of formaldehyde by cycling reaction, and a determination method of formaldehyde and biological components, such as creatinine, creatine, homocysteine and the like, which produces formaldehyde as a reaction intermediate. In addition, the present invention provides a reagent kit for the above-mentioned determination method. The present invention provides a novel determination method of a homocysteine using transferase utilizing homocysteine and other compound as a pair of substrates. Particularly, the present invention provides a determination method of homocysteine which includes bringing betaine-homocysteine methyltransferase and dimethylglycine oxidase into contact with a sample and measuring produced hydrogen peroxide or formaldehyde. Moreover, the present invention provides novel dimethylglycine oxidase stable to thiol compound, which is suitably used for the measurement. The present invention provides a reagent kit used for any of the above-mentioned determination methods of homocysteines.

Attrition resistant, sorbent compositions for the removal of elemental sulfur and sulfur compounds, such as hydrogen sulfide and organic sulfides, from cracked-gasoline and diesel fuels are prepared by the impregnation of a sorbent support comprising zinc oxide, expanded perlite, and alumina with a promoter such as nickel, nickel oxide or a precursor of nickel oxide followed by reduction of the valence of the promoter metal in the resulting promoter metal sorbent support composition. Also disclosed is a composition comprising desulfurized, cracked-gasoline wherein the desulfurized cracked-gasoline comprises less than about 1 ppmw thiol compounds and less than about 1 ppmw tetrahydrothiophene compounds.

The present invention relates to a polyimide resin composition including an organic thiol compound and a thermoplastic polyimide resin, a polymeric film containing the polyimide resin, a laminate including the same, and a printed circuit board. By using the polyimide resin composition, it is possible to form an electroless plating film having high adhesive strength even under high-temperature, high-humidity conditions in spite of the fact that the surface roughness of the insulating layer is extremely low. Furthermore, by using the polymeric film and a laminate including the polymeric film and a metal layer, it is possible to obtain a printed circuit board capable of forming high-density circuit and having excellent adhesiveness, and excellent adhesion reliability in a high-temperature, high-humidity environment.

The invention provides a dye photosensitive resin composition featuring high harden sensitivity and excellent display and capable of forming dye harden film having excellent heat resistance and expected color tone, a pattern forming method employing the dye photosensitive resin composition, a method for making color filter, a color filter, and a display element having the color filter. The dye photosensitive resin composition at least comprises a colorant, bonding resin, polymerism composition, a photopolymerization starting agent shown in the general formula (I), multifunctional mercaptan composition, and a solvent. In the formula (I), R1 represents a univalent substituent group containing aromatic nucleus or heteromatic nucleus. X1, X2, X3, and X4 independently represent hydrogen atom, halogen atom, or alkyl respectively; Y represents single bond or carbonyl; and Z represents methyl or phenyl.

Disclosed is a process for producing a (poly)thiol compound for an optical material. The process comprises reacting an organic (poly)halogen compound or a (poly)alcohol compound with thiourea to produce an isothiuronium salt and hydrolyzing the isothiuronium salt to thereby produce the (poly)thiol compound, wherein the thiourea has a calcium content of not more than 1.0 wt %.

The invention relates to a solidification compound of aryl mercaptan-olefinic unsaturated double-bond polyether sulfone, belonging to the technical field of low-temperature solidifying materials. The compound comprises the components of an olefinic unsaturated double-bond polyether sulfone compound, an aryl mercaptan compound and a polymerization initiator, wherein the molar ratio of the aryl mercaptan compound to the olefinic unsaturated double-bond polyether sulfone compound is 1:99-1, and the polymerization initiator is used for photopolymerization to obtain a condensate during optical absorption and/or thermal absorption. Through the use of the specific aryl mercaptan and the specific polyether sulfone containing olefinic unsaturated double-bond, the invention can obtain the polyether sulfone material with high photoreaction activity, good heat resistance and high hardness; and with the obtained characteristics of solidification reactivity, alleviated solidification shrinkage, adherence with a base material, transparency and the like, the polyether sulfone material is suitable for optical materials, coating materials, inhibitors, UV (Ultraviolet) solidification coatings and the like.

Disclosed is a process for producing effectively a high performance optical material (e.g. a lens) made of a polyurethane resin, which is transparent and colorless without a strain. In this process, the optical material is produced without causing striation or clouding by polymerizing a polymerizable composition comprising a polythiol compound and a polyiso(thio)cyanate compound, and characterized in that a water content in the composition is 10 to 300 ppm.

This invention relates to a method of coating a metal surface by applying a solution containing an alkanethiol compound and a solvent to a metal surface, allowing the formation of a self-assembled monolayer, which presents as a robust barrier to corrosion. The alkanethiol compounds have a general formula, R(CH₂)_nSH, where R represents methyl, carboxyl, hydroxyl, formyl, or amide; n is in the range of 7 to 21, preferably in the range of 12 to 18.

The invention relates to a composition used for anoptical material and an optical material employing the same. Provided is a composition for an optical material, and the composition helps to predict, before the stage of polymerized solidification, changes of yellow, determine the good and the bad, and contains sulfuric polyester. A sulfuric polyester compound containing iron, chrome and nickle with the total amount of below 5.0ppm and the composition of a polyiso-(sulfur)-cyanate ester compound for the optical material are introduced to solve the problem of the invention. A compound of sulfuric polyester and episulfide for the optical material, containing iron, chrome and nickle with the total amount of below 5.0ppm is also introduced.

The invention relates to an ultraviolet curing adhesive with high elongation and low elastic modulus and a preparation method thereof. The ultraviolet curing adhesive comprises the following raw materials by weight percent: 25-70% of polyurethane-acrylate oligomer, 20-70% of propyleneesters active diluent, 2-7% of photoinitiator and 1-5% of mercaptan compound. The preparation method of the ultraviolet curing adhesive comprises the following steps: weighting the raw materials by weight percent, adding into a stirrer, vacuumizing until the vacuum degree is -0.08MPa to -0.05Mpa, stirring uniformly at the speed of 500-1,000r/min for 0.5-2h, and airing at normal temperature to obtain the ultraviolet curing adhesive. The ultraviolet curing adhesive with high elongation and low elastic modulus overcomes the defects of low elongation and high elastic modulus of the conventional ultraviolet curing adhesive and has excellent performance, high adhesion reliability and a wide range of application.

A curable composition containing an inorganic compound A having sulfur atom and/or selenium atom, a compound B represented by the following formula 1:

wherein m is an integer from 0 to 4, and n is an integer from 0 to 2,

and a compound C selected from the group consisting of thiol compounds having one SH group and disulfide compounds which are other than the compound B and have one or more disulfide linkages. The inorganic compound A is contained in an amount from 1 to 50 parts by weight and the compound B is contained in an amount from 50 to 99 parts by weight when a total of the inorganic compound A and the compound B is taken as 100 parts by weight. The compound C is contained in an amount from 1 to 20 parts by weight based on 100 parts by weight in total of the inorganic compound A and the compound B. The curable composition causes little increase in the viscosity even when subjected to prepolymerization and deaeration, thereby facilitating the operation of cast polymerization for producing optical materials, etc.

The polymerizable composition for an optical material of the present invention comprises a phenylene diisocyanate, at least one polythiol compound selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane, 1,1,2,2-tetrakis(mercaptomethylthio)ethane 3-mercaptomethyl-1,5-dimercapto-2,4-dithiapentane and tris(mercaptomethylthio)methane.

A circuit board having high adhessiveness contact between electrically insulating layers and having a low interlayer electric resistance is provided. A circuit board is provided with a first conductive layer formed on a core (1) and a first electrically insulating layer formed thereon. In the circuit board, a first conductor layer has a surface roughness Ra of 0.1 nm or more but less than 100 nm, and a first primer layer having a thiol compound as a main material is provided between the first conductive layer and the first electrically insulating layer. Thus, the circuit board which has excellent adhesiveness between the first conductor layer and the first electrically insulating layer and is also applicable to high frequency signal is provided.

By resolving objections in the prior art, provided are a novel copolymer suitable as a coating polymers which is excellent in adhesion to a substrate and can be used suitably as the polymer for the coating film having durability against pattern collapse in the finer pattern formation for progressed lithography technology and a method for producing the copolymer, as well as a novel thiol compound useful as a chain transfer agent in the production of the copolymer. The novel thiol compound of the present invention has the structure represented by the formula (1);

wherein R¹ is a bivalent substituent selected from linear, branched or cyclic saturated hydrocarbon having 1 to 15 carbon atoms.