161 results about "Cycloparaffins" patented technology

The invention relates to the photoinitiator technical field, in particular to an oxime ester photoinitiator and a preparation method thereof. A carbazole oxime ester photoinitiator has a structural general formula as the right formula, R=formula (1), n=0-5, m=3 or 4, R radical is aliphatic ketone with cyclane, the cyclane is cycloaliphatic ring from cyclopropane to cyclooctane, branched-chain aliphatic hydrocarbon connects the cyclane and the ketone, and the chain usually has 0-6 carbon atoms. The carbazole oxime ester photoinitiator with the structure is a brand-new compound with good photoinitiator performance, and solves the problem of poor sensitivity, thermal stability and solubility of the existing carbazole oxime ester photoinitiators.

A process for manufacturing a lubricating base oil, comprising dewaxing a substantially paraffinic wax feed by hydroisomerization dewaxing using a shape selective intermediate pore size molecular sieve under hydroisomerization conditions including a hydrogen to feed ratio from about 712.4 to about 3562 liter H₂/liter oil, whereby a lubricating base oil is produced having a)a total weight percent of molecules with cycloparaffinic functionality greater than 10, and b) a ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality greater than 30. Also a method for producing a base oil having a high ratio of weight percent molecules with monocycloparaffinic functionality to weight percent molecules with multicycloparaffinic functionality by hydroisomerization dewaxing a selected Fischer-Tropsch wax under hydroisomerization conditions including a hydrogen to feed ratio from about 712.4 to about 3562 liter H₂/liter oil. Also a lubricating base oil manufacturing plant.

A multigrade engine oil meeting the specifications for SAE J300 revised June 2001 requirements and a process for preparing it, said engine oil comprising (a) between about 15 to about 94.5 wt % of a hydroisomerized distillate Fischer-Tropsch base oil characterized by (i) a kinematic viscosity between about 2.5 and about 8 cSt at 100° C., (ii) at least about 3 wt % of the molecules having cycloparaffin functionality, and (iii) a ratio of weight percent molecules with monocycloparaffin functionality to weight percent of molecules with multicycloparaffin functionality greater than about 15; (b) between about 0.5 to about 20 wt % of a pour point depressing base oil blending component prepared from an hydroisomerized bottoms material having an average degree of branching in the molecules between about 5 and 9 alkyl-branches per 100 carbon atoms and wherein not more than 10 wt % boils below about 900° F.; and (c) between about 5 to about 30 wt % of an additive package designed to meet the specifications for ILSAC GF-3.

To provide an image bearing member protecting agent that includes at least a hydrophobic organic compound and an amphiphile organic compound. Preferred embodiments are that the hydrophobic organic compound is a hydrocarbon wax, and the hydrocarbon wax is at least a wax selected from normal paraffins, isoparaffins, and cycloparaffins; and that the amphiphile organic compound is an polyalcohol esterified compound including a nonionic surface active surfactant, and the nonionic surface active surfactant is an alkyl carboxylic acid represented by a structural formula, C_nH_2n+1COOH.

A lubricating oil (made from Group III base oil having a sequential number of carbon atoms) having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. A lubricating oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an antioxidant additive concentrate and c) no VI improver. A process comprising: a) hydroisomerization dewaxing of a waxy feed, b) fractionating the produced base oil, c) selecting a fraction having a VI greater than 150, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an antioxidant additive concentrate. Also, a method of improving the oxidation stability of a lubricating oil.

Gear lubricant with a low Brookfield Ratio, comprising: a base oil having sequential carbon atoms, low aromatics, greater than 20 wt % molecules with cycloparaffins and a high ratio of monocycloparaffins to multicycloparaffins; less than 22 wt % of a second base oil having less than 40 wt % molecules with cycloparaffins and a lower ratio of monocycloparaffins to multicycloparaffins; a pour point depressant, an EP additive; and less than 10 wt % VI improver. Gear lubricant with a low Brookfield Ratio, comprising a first base oil having low aromatics and high VI; less than 22 wt % of a second base oil with a lower VI; a pour point depressant; and an EP additive. Gear lubricant having a low Brookfield Ratio comprising: an FT derived base oil; a pour point depressing base oil blending component; and an EP additive. Processes for making gear lubricants with low Brookfield Ratios. Method for reducing Brookfield Ratio.

A diesel fuel comprising a mixture of normal paraffins and branched paraffins. The normal paraffins present in the diesel fuel is less than about 99% by weight; and the aromatic content in the diesel fuel is less than about 10% by weight. The diesel fuel has a cetane number of at least 40 and a sulfur content of less than about 100 ppm. Optionally, the diesel fuel may further include cycloparaffins, i.e., naphthenes. To increase the lubricity of the diesel fuel, a lubricity additive, such as fatty acid methyl ester, can be added to the diesel fuel.

The invention belongs to the technical field of high polymer materials, and discloses high-transparent polysulfone resin and a preparation method thereof. The preparation method particularly comprises the steps of a salt-forming reaction, a polymerization reaction and post-treatment. A cycloparaffin bisphenol compound is added in the polymerization reaction, the regularity of a polymer chain is destroyed, the degree of crystallinity is decreased, the hydroxy end-capping high-transparent polysulfone resin is prepared, original excellent properties of polysulfone are reserved, the high-transparent advantage is achieved, and better application prospect and great market value are achieved. By controlling the solid content of a system and adopting specific solvent and high-pressure polymerization, the time of the polymerization reaction is greatly shortened, the energy consumption is reduced, a water separation agent does not need to be added, and the post-treatment processes are reduced.

An ashless hydraulic fluid or paper machine oil having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. An ashless hydraulic fluid or paper machine oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an ashless antioxidant additive concentrate, and c) low amount of VI improver. A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an ashless antioxidant. Also, a method of improving the oxidation stability of an ashless hydraulic fluid or paper machine oil.

The invention discloses a catalytic reforming method for naphtha, which comprises a step that: naphtha is in contact with a reforming catalyst under the conditions that the pressure is 0.15-3.0MPa, the temperature is 300-540 DEG C and the hourly space velocity is 2.1-50/h so as to carry out shallow catalytic reforming reaction, so that the cycloparaffin conversion rate of the naphtha is greater than 85 mass%, and the ratio of converting paraffin into arene and C4-hydrocarbon is less than 30 mass%. According to the method, naphtha can largely produce paraffin while producing arene, so that the naphtha becomes a raw material which both can be used for producing arene and high-quality raw materials for ethylene cracking.

The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silicalite adsorbent and, as the desorbent, a C₅-C₈ linear paraffin, a C₅-C₈ cycloparaffin, a branched paraffin such as isooctane, or mixtures thereof. The effluent of the alkylation zone comprises paraffins that are recycled to the adsorptive separation step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

A process to produce an alkylate distillate blending component in one embodiment comprising: providing at least one olefinic C5+ product which was produced by conversion of synthesis gas in a Fischer Tropsch process; and alkylating the olefinic C5+ product in the presence of an acidic ionic liquid alkylation catalyst with hydrocarbons selected from the group consisting of isoparaffins, cycloparaffins, and their mixtures to form an alkylate distillate blending component is described.

The present invention relates to the method for preparing the elasticizer which includes purifying the petroleum distillate and separating the extractive by the selective solvent, the extractive is treated by dimethylsulfoxide with weight ratio 1 :( 2.0-4.0) at the temperature ranging from 30 to 120 degree, and the gained raffinate is used as elasticizer. The extractive is the remaining extractive or the mixture of the remaining and the distilled extractive. The extractive is diluted by the alkane-cycloparaffin solvent with weight ratio 1: (0.1-0.5). The elasticizer includes the following components: the aromatic hydrocarbons with the weight percentage from 60 to 90, wherein the polycyclic aromatic hydrocarbon provided with three or more rings is 1.5 to 2.9 percentages by weight; the rest is alkane-cycloparaffin and resin.

The invention discloses rat glue having attraction effects, a preparation method of the rat glue and a rat glue plate coated with the rat glue. The rat glue having attraction effects is prepared from 3 to 8 parts by weight of butyl rubber, 30 to 50 parts by weight of liquid polyisobutene, 30 to 50 parts by weight of cycloparaffin oil, 8 to 15 parts by weight of C5 petroleum resin, 1 to 6 parts by weight of polyethylene, 0.3 to 0.6 parts by weight of an antioxidant and 0.05 to 1.5 parts by weight of peanut essence. The rat glue having attraction effects has stable quality, can be used for a long time, does not need an additional attractant because of the attraction effects so that rat sticking failure is avoided because of falling-off or rolling-off of the attractant, has high trapping efficiency, and does not produce damage on the environment, people and livestock.

The invention discloses an aromatization catalyst and application thereof in the highly selective preparation of p-xylene. The aromatization catalyst consists of a carrier and active metal components, the carrier contains at least one type of mesoporous molecular sieve, antimony oxide and inorganic refractory oxide, the mesoporous molecular sieve contains lanthanum oxide, the active metal components are platinum, rhenium and a third component, and the third component is at least one of gallium, zinc, indium and tin. The aromatization catalyst is used in the reforming process of the highly selective preparation of p-xylene with paraffin, cycloparaffin, alkene, or naphtha andor the like as raw oil material, and has the advantages of high stability, high p-xylene selectivity and the like.

A montmorillonite-TiCl4 catalyst for preparing the nm-class composition of the olefine polymer or copolymer (polyethylene or polypropylene) contains laminated silicate clay montmorollonite, magnesiumcompound, alcohol compound for dissolving said magnesium compound, TiCl4 and electron providing reagent. Said nm-class composition is prepared by use of saturated paraffin or cycloparaffin as solvent. Its advantages are high teasion strength (32-50 MPa) and low cost.

A process for the production of aromatics through the reforming of a hydrocarbon stream is presented. The process utilizes the differences in properties of components within the hydrocarbon stream to increase the energy efficiency. The differences in the reactions of different hydrocarbon components in the conversion to aromatics allows for different treatments of the different components to reduce the energy used in reforming process.

The invention relates to an adhesive for a ceramic tile and a preparation method of the adhesive. The adhesive comprises the following components: a polyacrylate emulsion, phthalate, butyl rubber, quartz powder, cellulose ether, bentonite, lignin fibers, cycloparaffin petroleum, methylbenzene, calcium carbonate, dibutyl phthalate, phthalimide, diethanol amine, diethylenetriamine, polybutylene, a calcium-titanium pigment, a cobalt drying agent and a mildew inhibitor. The preparation method comprises the following steps: uniformly mixing the polyacrylate emulsion, phthalate, the butyl rubber, the lignin fibers, the cycloparaffin petroleum and methylbenzene, adding cellulose ether, dibutyl phthalate and phthalimide, insulating and mixing, adding the quartz powder, the bentonite, calcium carbonate, diethanol amine, diethylenetriamine and polybutylene, insulating and mixing, and adding the rest components to obtain the adhesive. The adhesive has the advantages of high whiteness and strong adhesion power; and pasting and jointing can be carried out at the same time, and the situations of interface separation, hollowing and dropping are not existent.