402 results about "Tert-butylbenzene" patented technology

Improvements in preventing heat- and moisture-shrink problems in specific polypropylene tape fibers are provided. Such fibers are basically manufactured through the initial production of polypropylene films or tubes which are then slit into very thin, though flat (and having very high cross sectional aspect ratios) tape fibers thereafter. Such fibers (and thus the initial films and/or tubes) require the presence of certain compounds that quickly and effectively provide rigidity to the target polypropylene tape fiber after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target polypropylene after exposure to sufficient heat to melt the initial pelletized polymer and upon allowing such a melt to cool. The compounds must nucleate polymer crystals at a higher temperature than the target polypropylene without the nucleating agent during cooling. In such a manner, the "rigidifying" nucleator compounds provide nucleation sites for polypropylene crystal growth. Upon slitting of the initial film and/or tube, the fiber is then exposed to sufficient heat to grow the crystalline network, thus holding the fiber in a desired position. The preferred "rigidifying" compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as sodium benzoate, certain sodium and lithium phosphate salts (such as sodium 2,2'-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11). Specific methods of manufacture of such inventive tape fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

Compatibilized blends of an isobutylene polymer and an unsaturated diene polymer are prepared by utilizing a compatibilizing agent comprising a block/graft copolymer containing polyisobutylene segments and C4 to C6 alkyl-substituted styrene polymer segments, such as poly(t-butylstyrene) segments.

The invention relates to a preparation and application method of a polyvinyl chloride (PVC) resin terminator, belonging to the technical field of chemical products. The invention particularly relates to a liquid antioxidant product, which mainly comprises 2,6-di-bert-butyl-4-(1-phenylethyl)phenol and is obtained by carrying out catalytic alkylation reaction on 2,6-di-bert-butyl phenol and styrene as raw materials. An organic solvent is added into the liquid antioxidant product which mainly comprises the 2,6-di-bert-butyl-4-(1-phenylethyl)phenol, and is sufficiently stirred to obtain the liquid antioxidant product HKY-10. The HKY-10 is compounded with a benzofuran ketone antioxidant and a phosphite ester antioxidant to obtain an oil-soluble compound liquid terminator product as a terminator for a general-purpose PVC resin product preparation process by a suspension method; and the liquid terminator is added in a polymerization reaction process to obtain a PVC resin product with stable properties, thereby enhancing the aging whiteness of the PVC resin product. The PVC resin terminator has the characteristics of no toxicity and environmental protection, and does not generate water pollutants.

The invention discloses a high-performance modified carboxylated nitrile rubber material. The material comprises the following raw materials by weight: 90 to 130 parts of modified carboxylated nitrile rubber, 15 to 30 parts of natural rubber, 20 to 40 parts of carbon black N-774, 5 to 10 parts of carbon black N-990, 5 to 10 parts of antimony trioxide, 3 to 5 parts of zinc oxide, 1 to 3 parts of stearic acid, 1 to 3 parts of sulfur, 0.5 to 3 parts of tetrabenzylthiuramdisulfide, 1 to 3 parts of N-tert-butyl-2-benzothiazole sulfonamide, 2 to 6 parts of dioctyl sebacate and 4 to 8 parts of an auxiliary. The modified carboxylated nitrile rubber blending material provided by the invention has higher comprehensive mechanical property, and heat and ageing resistant properties, high-temperature and oil resistant properties and low-compression and permanent-deformation properties.

The invention discloses a preparation method of a biphenyl triphosphane ligand and an application thereof in hydroformylation reaction. The prepared biphenyl triphosphane ligand has the structure shown as a formula (I) or formula (II) described in the specification. In the formula (I), aryl substituent Ar is benzene, p-methyl benzene, m-benzenyl trifluoride, p-benzenyl trifluoride, 3, 5-dibenzenyl trifluoride, 3, 5-difluorobenzene, 3, 5-dimethyl benzene, 3, 5-di-tert-butyl benzene, 3, 5-di-tert-butyl-4-metoxybenzene, p-metoxybenzene, p-dimethylamino benzene, 2-pyridine, p-fluorobenzene or 2, 3, 4, 5, 6-pentafluoro benzene; in the formula (II), R is in a cyclic phosphonate structure. The biphenyl triphosphane ligand disclosed by the invention can be used as a linear hydroformylation reaction catalyst, so that the selectivity and reaction rate of hydroformylation reaction can be remarkably improved. The biphenyl triphosphane ligand is low in cost and has a huge practical value.

A calixresorcinarene compound represented by the following formula (1):

wherein eight Rs are n (n is an integer of 1 to 7) substituents that are one or more types of substituents selected from groups represented by the following formula (2), and m (m is an integer shown by 8-n) hydrogen atoms; and R's, which may be the same or different, are each a straight-chain aliphatic hydrocarbon group having 2 to 12 carbon atoms, a branched aliphatic hydrocarbon group having 3 to 12 carbon atoms, a phenyl group, a p-phenylphenyl group, a p-tert-butylphenyl group, and an aromatic group represented by the following formula (3), or a substituent formed by combining two or more of these substituents:

wherein R″ is a hydrogen atom or a substituent selected from the substituents represented by the formula (2).

The invention discloses a 90-degree special temperature selflimiting electric tracing band, which comprises a conductive core, and a PTC material layer, a polymer insulating inner protective sleeve, an aluminum-magnesium alloy shielding layer and a polymer insulating outer protective sleeve which are covered outside the conductive core in turn, wherein the PTC material is prepared by mixing and melting the following raw material components in part by weight: high-density polyethylene 86-87, carbon black 12-14, tribasic lead sulfate heat stabilizer 0.11-0.13, lead silicate 0.04-0.06, styrenated phenol antioxygen 0.05-0.15, p-tert-butylphenyl salicylate light stabilizer 0.12-0.14 and tribromophenol fire retardant 0.05-0.15. The highest temperature of the band is maintained at 90+/-5 DEG C, and the band can be used as solar electric tracing band in places with large temperature difference.

The invention belongs to the technical field of lithium ion secondary batteries, and particularly relates to electrolyte for flexible-package lithium ion secondary batteries. The electrolyte comprises organic solvent, lithium salt and additives. The additives include additive A, additive B and additive C. The additive A is tert-amylbenzene and/or tert-butylbenzene, and the weight percentage of the additives A in the electrolyte is 5-10%. The additive B is at least one of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelaic dinitrile and sebaconitrile, and the weight percentage of the additive B in the electrolyte is 1-8%. The additive C is fluoroethylene carbonate, and the weight percentage of the additive C in the electrolyte is 2-10%. Compared with the prior art, the electrolyte has the advantages that the additive A, the additive B and the additive C are combined in the high-voltage-design flexible-package lithium ion secondary batteries, good circulating performance and high temperature storage performance of the batteries are guaranteed, and meanwhile, the batteries are enabled to have good anti-overcharge performance.

The invention discloses a 2-oxobutyrate di-tert-butylbenzene carbonylhydrazone diphenyhin complex shown in the structural formula (I). R is a phenyl group. The invention further discloses a preparation method of the 2-oxobutyrate di-tert-butylbenzene carbonylhydrazone diphenyhin complex and application of the complex to preparing anti-cancer medicine.

The invention relates to a rust proofing packaging film, in particular to a gas phase rust proofing industrial composite packaging film and a preparation method thereof. The gas phase rust proofing industrial composite packaging film comprises the compositions by weight proportion: 0 to 0.53 of drewamine, 0.12 to 0.42 of cyclohexane, 0.13 to 0.4 of dicyclohexylamine, 0.09 to 0.28 of phenylformic acid, 0.22 to 0.55 of tert-Butyl benzoic acid, 0 to 0.12 of cinnamylate, 29.5 to 45.1 of low density polyethylente, 29.5 to 45.1 of linear low density polyethylene, 0 to 0.02 of oleamide or erucyl amide and 0 to 0.12 of a diffusing impurity EB-FF. The gas phase rust proofing film has good barrier property and high intensity, saves cost, is nonpoisonous and harmless, prevents the pollution, and can be reused. The preparation method is simple and convenient, the process is easy to control and the production cost is low.

In a process for reducing the level of tert-butylbenzene in a mixed butylbenzene feed comprising tert-butylbenzene and sec-butylbenzene, the feed is contacted under dealkylation conditions with a catalyst system comprising a dealkylation catalyst whereby the tert-butylbenzene is selectively dealkylated to produce an effluent stream which comprises benzene and which has a lower concentration of tert-butylbenzene than said feed.

A method of preparing a high-performance wood plastic composite by utilization of waste polystyrene is disclosed. The method includes a step of drying corn straw, smashing, sieving, dipping with an acid, and adding a silane coupling agent KH-550 and N,N-bis(2-hydroxyethyl) alkyl amine to obtain modified corn straw; a step of smashing waste polystyrene foam to obtain pretreated polystyrene; a step of fully mixing the modified corn straw, nanometer titanium dioxide, molybdenum disulfide, nanometer aluminium hydroxide, nanometer zinc stannate, a silane coupling agent KH-560, a silane coupling agent KH-570, a foaming agent, polytetrafluoroethylene, dicumyl peroxide and the pretreated polystyrene, maintaining the temperature at 140-155 DEG C for 2.5-5 min, and allowing the mixture to stand to obtain a preheated material; and a step of fully mixing the preheated material, nylon, polycarbonate, sulfonated polystyrene, benzotriazole, tris(2,4-ditert-butylphenyl) phosphite, pentaerythritol dioleate and butadiene styrene rubber, and performing hot press processing.

The invention discloses a synthesis method of bis (2, 4-dibutylbenzene) pentaerythritol diphosphite, which comprises 1, synthesizing dichloropentaerythritol diphosphite: using xylene as solvent, adding pentaerythritol and catalyst, feeding nitrogen gas, adding phosphorous trichloride and absorbing generated hydrogen chloride gas via sodium hydroxide solution, and purifying reaction product to obtain the dichloropentaerythritol diphosphite, 2, synthesizing bis (2, 4-dibutylbenzene) pentaerythritol diphosphite: adding 2, 4-bis-tert-butylphenol into the reaction product of step 1, feeding nitrogen gas and mixing, absorbing generated hydrogen chloride gas via sodium hydroxide solution, and purifying the reaction product to obtain final product. The invention uses 2, 4-bis-tert-butylphenol, pentaerythritol and phosphorous trichloride as main materials, with low cost, easily processed reaction and high reaction yield.

The invention discloses triphenylamine compound with a full-bridge rigid structure and the application of the triphenylamine compound serving as hole transport layer material in electroluminescent device. The general structure of the compound is right formula; wherein, R is hydrogen atoms, phenyl, 4-triphenylamine or 3-(N-p-tert-butyl phenyl) which are same with each other. The triphenylamine compound has high thermal stability, and a synthetic method thereof is simple to be carried out. The compound can be used for preparing the electroluminescent device by a spin coating process, has low cost and extensive use. The electroluminescent device manufactured by triphenylamine compound serving as cavity transport layer material has electroluminescent performances of high efficiency and high brightness and can be widely applied to the organic electroluminescent field.

The invention relates to a preparation method of 1,4-double(2,4-diamino phenoxy)-2,5-d-tert-butylbenzene, comprising the steps as following, after being put into the solvent system of the solution of palladium or carbon hydrazine hydrate and saturated fatty alcohol for reaction for 1 to 5 hours with the temperature of 70 to 85 DEG C, the 1,4-double(2,4-dinitro phenoxy)-2,5-d-tert-butylbenzene is filtered when being hot, mother liquor is cooled off, pure water is dripped in, crystal products are precipitated, filtered, and dried in vacuum, and crystals of the 1,4-double(2,4-diamino phenoxy)-2,5-d-tert-butylbenzene are gained. The method has the simple operation, needs no subsequent refining and purifying technique, takes little time, has the products with the high yield and the purity of more than 99 percent, and is suitable for industrial production.

The invention belongs to the field of fine chemical engineering, and relates to an improved method for preparing N-tert-butylbenzothiazolesulfenamide. 2-benzothiazolethiol and tertbutylamine are taken as raw materials, and undergo oxidation reaction by using sodium hypochlorite as an oxidant in the presence of an ionic or nonionic surfactant, and after the reaction is finished, a proper amount of reducing agent is added to remove unreacted sodium hypochlorite so as to improve the stability in the process of drying the product. In the method, sulfuric acid and sodium hydroxide are not needed, so that wastewater amount is small, the product yield is over 95 percent, the smelting point is 105DEG C, and the insoluble matter content in methanol is stabilized in a range of 0.28 to 0.68 percent and reaches the national standard. The consumption of main raw materials is low, and the method is suitable for industrial production.

The invention discloses a high pressure hydrogenation naphthenic lubricating oil light stabilizer composition. The composition comprises, by mass, 80-90% of an ultraviolet light absorbent and a hindered amine light stabilizer 3,5-bis(1,1-dimethylethyl)-4-octadecyl hydroxybenzene phenylpropionate, and 10-20% of a tri[2,4-di-t-butylphenyl]phenyl phosphite chelating agent. The light stability of high pressure hydrogenation naphthenic lubricating oil can be obviously improved by adding 0.5-1% of the high pressure hydrogenation naphthenic lubricating oil light stabilizer composition to base oil ofa high pressure hydrogenation naphthenic lubricating oil composition.

A resist underlayer film-forming composition has high solubility in a solvent used at a lithography process for exhibiting good coating film forming properties and able to decrease a sublime generated during formation of a film. A resist underlayer film-forming composition having a novolac resin having a structure group (C) obtained by a reaction of an aromatic ring structure of an aromatic ring-containing compound (A) with a vinyl group of an aromatic vinyl compound (B). The aromatic vinyl compound (B) is represented by Formula (1), and is specifically styrene, 2-vinylnaphthalene, 4-tert-butylstyrene, or 4-tert-butoxystyrene.

The structure group (C) is represented by Formula (2).

The aromatic ring-containing compound (A) is an aromatic amine compound or a phenolic hydroxy group-containing compound. The novolac resin is a resin produced by a reaction of the aromatic amine compound or the phenolic hydroxy group-containing compound with aldehyde or ketone.

The invention discloses tert-butyl B'B2-containing triamine monomer with unequal activation functional groups, hyperbranched polyimide of the tert-butyl B' B2-containing triamine monomer and a preparation method. The triamine monomer is prepared by carrying out three-step reaction including nitrating, substituting and reducing on tert-butylaniline. Based on difference of activities of three amines of the monomer, the monomer and various commercial dianhydride monomers can be used for preparing the hyperbranched polyimide by a 'two-step method', and gel is avoided. The prepared hyperbranched polyimide has good thermal stability and solubility, and has wide application prospect in the fields of gas film separation, high-temperature-resistant polymer processing and the like.

The invention discloses a high-rigidity high-transparency polypropylene composite material, and belongs to the technical field of high polymer alloy materials. The high-rigidity high-transparency polypropylene composite material is compounded by 2-4wt% of nanoscale barium sulfate master batch, 0.1-0.3wt% p-tertiary butyl hydroxyl aluminum benzoate and 0.1-0.3wt% sorbitol acetal as a nucleating agent of polypropylene. According to the high-rigidity high-transparency polypropylene composite material, the nanoscale barium sulfate master batch is added to achieve a certain compatible effect on two nucleating agents, so that the two nucleating agents are prevented from resisting against each other; and meanwhile, the effects of nucleating heterogeneously, promoting the polypropylene to quicken crystallization and refining spherocrystal effects are achieved, so that the rigidity and the transparency of a PP (polypropylene) product are further improved.

The invention discloses serial compounds with triptycene as a framework and in bridge connection with metalloporphyrin through pyrene tetrone and a preparation method therefor, and belongs to the photoelectric conversion material field. The compound molecular formula is C320H348N24M3. The structural formula is shown in the specification. Triptycene is subjected to nitration by utilization of concentrated nitric acid, and 2,6,14-trinitro-triptycene; after reduction, a reaction with propionic anhydride, p-toluenesulfonic acid and potassium nitrate is carried out, then sodium hydroxide is added, hydrolysis is carried out, and 2,6,14-triamino-3,7,15-trinitro-triptycene is prepared; after reduction of stannous chloride, ethanol and concentrated hydrochloric acid, 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride. 3,5-bis-tert-butyl benzaldehyde and pyrrole are reacted and porphyrin is prepared; porphyrin is reacted with cupric acetate and cupric nitrate solutions and nitro copper porphyrin is prepared; 4-amino-1,2,4-triazole is added, a reaction is carried out, and an amino substituted nitro copper porphyrin is prepared; after reduction, diamino copper porphyrin is prepared. 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride and 2,7-bis-tert-butyl pyrene-4,5,9,10- tetrone are reacted, and a compound 1 is prepared; the compound 1 is reacted with the diamino copper porphyrin, and a compound 2 is prepared; after metal removal, a reaction with a methanol solution of corresponding metal acetate is carried out, and the compound is prepared.

The invention discloses a blue fluorescent compound comprising double fluorescence groups. The blue fluorescent compound is 2-(9-anthryl)-1-(4-tert-butylphenyl) 1H-phenanthro [9,10-d] imidazole; 2-(1-pyrenyl)-1-(4-tert-butylphenyl) 1H-phenanthro [9,10-d] imidazole. The maximum emission peak of an electroluminescent device (D1) based on dye B1 is located at 460 nm, the chromaticity coordinate is (CIE, x=0.16, and y=0.17), the light is blue light, and the device maximum luminance, the current efficiency and the external quantum efficiency are 5168.4 cd/m<2>, 1.15 cd/A and 0.83% respectively. The maximum emission peak of an electroluminescent device (D2) based on dye B2 is located at 448 nm, the chromaticity coordinate is (CIE, x=0.15, and y=0.12), the light is blue light, and the device maximum luminance, the current efficiency and the external quantum efficiency are 5188.0 cd/m<2>, 0.90 cd/A and 0.85% respectively. The luminous efficiency of the device is reduced remarkably with the increasing of the luminance, which shows weak efficiency roll-off.