30 results about "Cyclodecane" patented technology

There are provided a novel compound having an 3,4-epoxytricyclo[5.2.1.02,6]decane skeleton and a polymerizable unsaturated bond, and a process for the preparation of the compound.There is also provided a copolymer including a monomeric unit (A) containing an alkali-soluble group, and a monomeric unit (B) corresponding to an epoxy-containing polymerizable unsaturated compound, or a copolymer including, in addition to the monomeric units (A) and (B), a monomeric unit (C) corresponding to an epoxy-free polymerizable unsaturated compound such as a N-substituted maleimide, in which the monomeric unit (B) occupies 40 to 90 percent by weight of total monomeric units, and 30 percent by weight or more of the monomeric unit (B) is a monomeric unit corresponding to a specific 3,4-epoxytricyclo[5.2.1.02,6]decane skeleton-containing compound. The copolymer can yield a film excellent typically in thermal stability, yield a resin composition having very high storage stability, and be easily synthetically prepared.

The invention relates to a method for synthesizing a tricyclic decane unsaturated monoaldehyde. According to the method, a dicylopentadiene is catalyzed under the action of a catalyst at the low temperature and pressure without using a solvent to synthesize a tricyclic unsaturated monoaldehyde, the catalyst is a metal phosphonic complex catalyst which is carried by a ferromagnetic oxide, and an impregnation method and a coprecipitation method are used to prepare the tricyclic decane unsaturated monoaldehyde. By means of the method, the conversion rate of the dicylopentadiene (DCPD) can reach to above 99%, and the selectivity of the tricyclic decane unsaturated monoaldehyde can reach to above 98%.

The present invention provides a cleanser composition which is used for removing fixing agents and protecting films used in processes for polishing optical articles such as lenses and has high cleansing powers against the fixing agents and the protecting films without using halogen-based solvents, fluorine-based solvents and aromatic solvents against which affections are feared. This cleanser composition is characterized by comprising 75 to 25 wt. % of an alkylene glycol alkyl ether such as dipropylene glycol monomethyl ether or dipropylene glycol dimethyl ether and 25 to 75 wt. % of a 10 to 15C cycloparaffin such as cyclodecane, cycloundecane or cyclododecane.

The invention discloses a preparation method of modified asphalt. The preparation method comprises the following steps: firstly mixing aromatic oil and asphalt raw materials to form matrix asphalt; secondly preparing a modified polymer by using star-type SBS rubber and polyethylene, adding diatomite to the modified polymer to form a compound modified polymer, adding the compound modified polymer to the matrix asphalt, and performing high-speed shear mixing at a high temperature, wherein the high temperature and low temperature resistances and the aging resistance of the asphalt are improved; after the initially modified asphalt is cooled, heating the initially modified asphalt, and simultaneously adding wood fibers or polyester fibers to the initially modified asphalt so as to improve the abrasion resistance of the asphalt; when the asphalt is gradually cooled, adding mica powder and calcium borate to the asphalt, stirring, cooling to 80-100 DEG C, and adding polybrominated cyclodecane, silicone resin and hydrated alumina to improve the flame retardancy and smoke suppression of the asphalt; finally adding a cationic emulsifier and an ammonium chloride stabilizer. Therefore, the surface property of the asphalt is improved, and the asphalt pavement and the later maintenance of the paveement are facilitated.

The invention belongs to the technical field of preparation of carboxylic acid by carbonylation reaction, and particularly relates to a preparation method of tricyclodecane dicarboxylic acid. The preparation method comprises the following steps: 1, with dicyclopentadiene as a raw material, phosphine ligand modified alpha-alumina supported cobalt-rhodium-manganese trimetal as a catalyst, preparingthe compound through reaction for 3-8 hours in the presence of an organic solvent, wherein the pressure of mixed gas of synthesis gas and air is 4-7 MPa, the reaction temperature is 150-170 DEG C, andthe reaction pressure is 7-9 MPa. By adopting the method, the conversion rate of dicyclopentadiene can reach 99% or above, and the selectivity of tricyclodecane dicarboxylic acid can reach 90% or above.

The compound of the invention, having an average isocyanate functionality of greater than 2, results from the reaction of a (poly)isocyanate having an average functionality of greater than 2, with the compound X comprising a function B(H)n or B'(H)n' where n is equal to 1 or 2, n' is equal to 1, 2 or 3, H is a labile hydrogen and B denotes O, S, N, N being a primary or secondary nitrogen, -C(=O)-O, -C(=O)-N, or else the groups O=P(O)2; O=P(O)OR1; O=P(O)3; O=P(O)2 OR1; O=P(O)-OR1, R1 denoting an alkyl or aralkyl radical, and B' denotes -SiR2R3R4, R2, R3 and R4 representing oxygen, an alkyl radical bearing a function that is reacted with the (poly)isocyanate, or an aralkyl, aryl, -O-alkyl or -O-aralkyl radical, X being, in addition, a cycloaliphatic, aromatic or heterocyclic compound or a particle of a crosslinked polymer; and with the proviso that, when B denotes a secondary nitrogen and X is a cycloaliphatic compound, X is then a compound having at least two rings; the reaction being carried out with a compound X / [compound X + (poly)isocyanate] weight ratio of at most 50%. The invention also relates to a composition of the hardener type which comprises at least one compound of the above type. The compound or the composition of the invention can be used in the preparation of a coating of the paint or varnish type.

The invention provides a preparation method of tricyclodecane diol. The preparation method comprises the following steps: a, carrying out a hydration reaction on a substance dicyclopentadiene represented by a formula (1) under the action of a resin catalyst to obtain a substance hydroxydihydrodicyclopentadiene represented by a formula (II); and b, under the action of a catalyst, hydrogenating thesubstance represented by the formula (II) to obtain the tricyclodecane diol represented by a formula (III). According to the synthesis method of the novel tricyclodecane diol, cheap and easily-available dicyclopentadiene in chemical industry is used as a raw material, and a common rhodium catalyst is not used as the catalyst, so that the reaction has the cost advantage, and good industrial prospects are achieved.

The invention discloses a high-temperature-resistant photocuring 3D printing resin material which is prepared from the following components in parts by mass: 15 to 25 parts of active diluent monomer, 30 to 40 parts of high-temperature-resistant monomer, 40 to 55 parts of urethane acrylate oligomer and 1 to 3 parts of photoinitiator, the high temperature resistant monomer is one or more of tris (2-hydroxyethyl) isocyanuric acid triacrylate, tricyclodecane dimethyl alcohol diacrylate and isobornyl methacrylate; and the polyurethane acrylate oligomer is one or more of two-functionality aliphatic polyurethane acrylate, two-functionality aromatic polyurethane acrylate, six-functionality polyurethane acrylate, three-functionality polycarboacrylate and three-functionality novolac epoxy resin. The high-temperature-resistant light-cured 3D printing resin material disclosed by the invention is relatively low in viscosity, high in curing speed, excellent in temperature resistance and good in mechanical strength and flexibility. The invention further discloses a preparation method, a printing method and application of the high-temperature-resistant photocuring 3D printing resin material.

The invention discloses a method for preparing vitaletine, and belongs to the field of synthesizing of medicine intermediates. The method comprises the following steps of using 3-amino-1-amantadol andmonohydrated acetaldehyde acid as raw materials, and performing imidization reaction, so as to obtain (3-hdyroxyl amantadine)acetic acid; under the catalyzing function of tris(2,2,2-trifluoroethyl)borate, acylating and condensing with (S)-pyrrolidine-2-formonitrile, so as to obtain (2S)-1-[[(3-hydroxyl tricyclic[3.3.1.1[3,7]]decane-1-yl)imino]acetyl]pyrrolidine-2-formonitrile; reducing by palladium carbon / ammonium formate, so as to obtain the vitaletine. The method has the advantages that one-pot process is adopted, the operation is simple, fewer impurities are contained, the product is easyto purify, the purifying step is not needed, the cost is reduced, and the method is suitable for industrialized production.

The invention discloses a degradable polyester-polycarbonate copolymer with high gas barrier property as well as a preparation method and application thereof. The structural formula of the degradable polyester-polycarbonate copolymer with the high gas barrier property is shown in the description, wherein R1 is a structural unit of bio-based aromatic dibasic acid, R2, R3 and R4 are cyclic dihydric alcohol or a structural unit formed by combining aliphatic dihydric alcohol and cyclic dihydric alcohol, x, y and z are integers of 1-10, and m is an integer of 15-150; the bio-based aromatic binary acid comprises thiophenedicarboxylic acid; and the cyclic dihydric alcohol comprises any one or a combination of more than two of tricyclodecane dimethanol, tricyclodecane diol and tetracyclic diol. The degradable polyester-polycarbonate copolymer with the high gas barrier property has excellent gas barrier property, the ester bond density of a polymer molecular chain segment is improved, so that the degradation rate is improved. Meanwhile, dihydric alcohol is added to adjust the mechanical property, the heat resistance and the like, and the comprehensive performance of the copolymer is excellent.

The invention relates to a method for chemically regulating particle size of azobisformamide. In the process of producing azobisformamide by oxidizing biurea with an oxidizer, 1,3,5,7-tetraazatricyclo[3.3.1.1]decane is added to regulate the particle size of the azobisformamide product. The invention does not need to change the original technical process for producing azobisformamide, and the added chemical assistant is convenient to operate and low in cost. The invention improves the quality and added value of the azobisformamide product, and enhances the market competitiveness and economic benefit of the product.

A method of preparing thermoplastic polyester elastomer membrane with high binding strength includes the following steps: (a) Adding a reaction solvent to TPEE powder or granules to prepare a solvent mixture. (b) Adding a modifier to the solvent mixture, and mixing uniformly to prepare a first mixture, the modifier including at least one of o-xylylenediamine, m-xylylenediamine, alpha,alpha′-diamino-p-xylene, 2,3,5,6-Tetrachloro-p-xylene-alpha,alpha′-diamine, and 1,3,5,7-Tetraazatricyclodecane. (c) Adding an initiator to the first mixture, and mixing uniformly to prepare a second mixture. (d) Obtaining a finished product by passing the second mixture through an injection laminating process.

A method for producing adamantane by performing an isomerization reaction in two stages using endo-tetrahydrodicyclopentadiene and / or exo-tetrahydrodicyclopentadiene as a starting material, wherein in a first-stage isomerization reaction from endo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane) to exo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane), an HF catalyst alone or two catalysts of an HF catalyst and a BF3 catalyst are used in the absence of a solvent; and in a second-stage isomerization reaction from exo-tetrahydrodicyclopentadiene (tricyclo[5.2.1.02,6]decane) to adamantane (tricyclo[3.3.1.13,7]decane), an HF catalyst and a BF3 catalyst are used in the absence of a solvent.

A method of preparing 3(4),8(9)-bisformyltricyclo[5.2.1.02,6]decane is provided. According to the present invention, 3(4),8(9)-bisformyltricyclo[5.2.1.02,6]decane (TCDDA) may be prepared with a high conversion rate and purity without a separate catalyst recovery process.

The invention relates to the technical field of IPC C07C, in particular to a process for preparing tricyclodecane dimethylamine from dicyclopentadiene and application of the tricyclodecane dimethylamine. The process comprises the following steps: S1, adding dicyclopentadiene, a metal catalyst and a ligand into a reaction device, and reacting to obtain tricyclodecane dimethyl carbinol; s2, reacting the tricyclodecane dimethyl carbinol obtained in the step S1 with mixed gas under the action of a supported catalyst to obtain a tricyclodecane dimethylamine finished product, the mixed gas is a combination of hydrogen and ammonia gas. The method provided by the invention is simple in process route and high in raw material economy, material loss in the separation process is avoided, and the production cost is remarkably reduced.

Provided herein is a polyester obtained by copolymerizing (a) a diacid or a diester, which is (a1) and (a2) or a combination thereof, and (b) a diol, wherein each R1 is H or a C1-10 alkyl group, the diol is (b1) hexanediol and (b2) 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol, 1, 4-cyclohexanedimethanol, tricyclo [5.2. 1.0 (2, 6)] decanedimethanol, or a combination thereof, and the molar ratio of the (b1) hexanediol and (b2) 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol, 1, 4-cyclohexanedimethanol, tricyclo [5.2. 1.0 (2, 6)] decanedimethanol, or the combination thereof is 75:25 to 92:8. The invention also provides a fiber which comprises the polyester.

The invention discloses a method for preparing vitaletine, and belongs to the field of synthesizing of medicine intermediates. The method comprises the following steps of using 3-amino-1-amantadol andmonohydrated acetaldehyde acid as raw materials, and performing imidization reaction, so as to obtain (3-hdyroxyl amantadine)acetic acid; under the catalyzing function of tris(2,2,2-trifluoroethyl)borate, acylating and condensing with (S)-pyrrolidine-2-formonitrile, so as to obtain (2S)-1-[[(3-hydroxyl tricyclic[3.3.1.1[3,7]]decane-1-yl)imino]acetyl]pyrrolidine-2-formonitrile; reducing by palladium carbon / ammonium formate, so as to obtain the vitaletine. The method has the advantages that one-pot process is adopted, the operation is simple, fewer impurities are contained, the product is easyto purify, the purifying step is not needed, the cost is reduced, and the method is suitable for industrialized production.

The present invention provides a cleanser composition which is used for removing fixing agents and protecting films used in processes for polishing optical articles such as lenses and has high cleansing powers against the fixing agents and the protecting films without using halogen-based solvents, fluorine-based solvents and aromatic solvents against which affections are feared. This cleanser composition is characterized by comprising 75 to 25 wt. % of an alkylene glycol alkyl ether such as dipropylene glycol monomethyl ether or dipropylene glycol dimethyl ether and 25 to 75 wt. % of a 10 to 15C cycloparaffin such as cyclodecane, cycloundecane or cyclododecane.

The invention discloses high-temperature-resistant halogen-free flame-retardant 3D printing photosensitive resin and a preparation method thereof. The high-temperature-resistant halogen-free flame-retardant 3D printing photosensitive resin comprises the following components in percentage by mass: a phosphate modified polyurethane acrylate oligomer, tri (2-ethoxyl) isocyanuric acid triacrylate; tricyclodecane dimethyl alcohol diacrylate; acryloyl morpholine; a flame retardant; a photoinitiator; a defoaming agent; a wetting leveling agent; an anti-settling agent; a polymerization inhibitor; and a UV absorber. The photosensitive resin has the beneficial effects that the temperature resistance and flame retardance of the photosensitive resin are greatly improved under the condition of ensuring printing forming.

A method for producing tricyclo[5.2.1.02,6]decane-2-carboxylate according to the present invention is a method for producing tricyclo[5.2.1.02,6]decane-2-carboxylate, containing reacting tricyclo[5.2.1.02,6]deca-3-ene in a dilute solution containing the tricyclo[5.2.1.02,6]deca-3-ene with carbon monoxide in the presence of an acid catalyst, followed by reaction with an alcohol, wherein the dilute solution contains 100 parts by mass or more of a tricyclo[5.2.1.02,6]decane isomer mixture based on 100 parts by mass of the tricyclo[5.2.1.02,6]deca-3-ene, the tricyclo[5.2.1.02,6]decane isomer mixture contains endo-tricyclo[5.2.1.02,6]decane (Endo form of TCD) and exo-tricyclo[5.2.1.02,6]decane (Exo form of TCD), and a constituent ratio thereof (Endo form of TCD / Exo form of TCD) is greater than 1.0.

The invention discloses a synthesizing method of vildagliptin, and belongs to the field of medicine intermediate synthesis. The method includes the steps of conducting an imidization with 3-amino-1-adamantanol and monohydrated glyoxylic acid as the raw materials to obtain (3-hydroxyl adamantly imino)acetic acid, conducting acylation condensation on the (3-hydroxyl adamantly imino)acetic acid and (S)-pyrrolidine-2-formonitrile under the catalysis of electron-withdrawing phenylboric acid to obtain (2S)-1-[[(3-hydroxyl tricyclic[3,3,1,1[3,7]]decane-1-yl)imino]acetyl]pyrrolidine-2-formonitrile, and then conducting hydrazine hydrate reduction to obtain vildagliptin. A one-pot method is adopted, operation is simple, impurities are few, the product is easy to purify, the purifying steps are reduced, cost is reduced, and the method is suitable for industrial production.

The invention discloses a synthesizing method of vildagliptin, and belongs to the field of medicine intermediate synthesis. The method includes the steps of conducting an imidization with 3-amino-1-adamantanol and monohydrated glyoxylic acid as the raw materials to obtain (3-hydroxyl adamantly imino)acetic acid, conducting acylation condensation on the (3-hydroxyl adamantly imino)acetic acid and (S)-pyrrolidine-2-formonitrile under the catalysis of electron-withdrawing phenylboric acid to obtain (2S)-1-[[(3-hydroxyl tricyclic[3,3,1,1[3,7]]decane-1-yl)imino]acetyl]pyrrolidine-2-formonitrile, and then conducting hydrazine hydrate reduction to obtain vildagliptin. A one-pot method is adopted, operation is simple, impurities are few, the product is easy to purify, the purifying steps are reduced, cost is reduced, and the method is suitable for industrial production.

The invention belongs to the technical field of preparing carboxylic acid by carbonylation reaction, and in particular relates to a preparation method of tricyclodecane dicarboxylic acid. The preparation method comprises the following steps: using dicyclopentadiene as a raw material, using phosphine ligand-modified α-alumina-supported cobalt-rhodium-manganese trimetal as a catalyst, and controlling the mixing of synthesis gas and air in the presence of an organic solvent The gas pressure is 4-7MPa, the reaction temperature is 150-170°C, the reaction pressure is 7-9MPa, and the reaction is 3-8h. By adopting the method to prepare tricyclodecane dicarboxylic acid, the conversion rate of dicyclopentadiene can reach more than 99%, and the selectivity of tricyclodecane dicarboxylic acid can reach more than 90%.

A method for preparing a novel spiro compound substituted with an amino group, which is prepared by using a special reaction kettle, the reaction kettle has a glass body (1), the body is equipped with a kettle cover (11), a lower flange (12), a barrel Body (13), the reactor also includes inlet combination (2), gas outlet combination (3), fixture (4), stirring part (5); Methyl)bicyclo[2.2.2]decane-1-carboxylic acid is dissolved in THF, add NEt3, isobutyl chloroformate, obtain ((4-carbonamidobicyclo[2.2.2]decane-1-base) Methyl) benzyl carbonate, thus prepared ((4-cyano bicyclo [2.2.2] decane-1-yl) methyl) benzyl carbonate; add anhydrous methanol, nickel chloride hexahydrate, B ℃ acid anhydride to obtain ((4-((((benzyloxy)carbonyl)amino)methyl)bicyclo[2.2.2]decane-1-yl)methyl)benzyl carbonate; adding 1,4-dioxy In the hexacyclic solution and the dioxane hydrochloride solution, MTBE was added to obtain ((4-(aminomethyl)bicyclo[2.2.2]decyl-1-yl)methyl)benzyl carbonate.

The invention relates to a method for chemically regulating particle size of azobisformamide. In the process of producing azobisformamide by oxidizing biurea with an oxidizer, 1,3,5,7-tetraazatricyclo[3.3.1.1]decane is added to regulate the particle size of the azobisformamide product. The invention does not need to change the original technical process for producing azobisformamide, and the added chemical assistant is convenient to operate and low in cost. The invention improves the quality and added value of the azobisformamide product, and enhances the market competitiveness and economic benefit of the product.

A method for the synthesis of diazabicyclo[6.2.0]decane compounds is provided. The synthesis proceeds by stereoselective synthesis of a chiral lactone followed by azetidine formation via a series of chemoselective reactions. Bicyclization results with the formation of diazobicyclo[6.2.0]decane related compounds.