177 results about "Dicyclopentadiene" patented technology

The invention provides dicyclopentadiene phenol resin and a preparation method thereof, dicyclopentadiene phenol epoxy resin and a preparation method and application thereof. Compared with common dicyclopentadiene phenol resin, the dicyclopentadiene phenol resin has unsaturated cycloolefin active functional groups at the tail ends of molecular chains, so that the reactivity of the resin can be improved, and the application field of the dicyclopentadiene phenol resin is expanded.

The invention discloses a packaging material as well as a preparation method and application thereof. The packaging material comprises the following components in parts by mass: 40-85 parts of matrix resin, 5-30 parts of phase change PCM particles, 3-20 parts of self-repairing microcapsules, 1-8 parts of an interface compatilizer and 10-20 parts of a heat-conducting network reinforcing material, the melting point of the phase change PCM particles is not more than 80 DEG C; a core layer of the self-repairing microcapsule comprises dicyclopentadiene and a ruthenium catalyst, and a shell layer of the self-repairing microcapsule comprises polyurea or polyurethane; the PCBA packaging material with the intelligent response function is formed by combining the low-melting-point phase-change PCM particles with the self-repairing microcapsule system, when the PCBA temperature is too high, the low-melting-point phase-change PCM particles are molten, junction temperature suddenly rising is restrained through melting heat absorption, meanwhile, the adjacent microcapsules are triggered to be broken through volume expansion, DCPD monomers are released and subjected to in-situ polymerization under the action of a catalyst, and the PCBA packaging material with the intelligent response function is obtained. Microcracks generated by thermal stress are rapidly repaired, and the heat dissipation stability and the electrical insulation reliability of the material in long-term thermal circulation are remarkably improved.

A method of rapidly forming an elastomer with tunable properties is described herein. The method includes preparing a monomer solution comprising a catalyst and one or more monomers including 1,5-cyclooctadiene (COD). The one or more monomers may further include dicyclopentadiene (DCPD), and each of the COD and the DCPD may be present in the monomer solution at a predetermined volume percentage. A region of the monomer solution is activated to initiate an exothermic polymerization reaction and generate a self-propagating polymerization front, which moves through the monomer solution and polymerizes the one or more monomers. Thus, an elastomer having predetermined properties is rapidly formed.

The invention relates to the technical field of electronic materials, in particular to a copper-clad plate resin composition with an ultralow-loss medium and a preparation method of the copper-clad plate resin composition. The composition comprises the following components: modified polyphenyl ether, dicyclopentadiene epoxy resin, trifunctional epoxy resin, active ester, cyanate ester, DMAP, spherical silicon dioxide and a POSS-silicon dioxide compound, the preparation method comprises the following steps: carrying out surface norbornenylation modification on bimodal spherical silicon dioxide, and carrying out click reaction on the bimodal spherical silicon dioxide and octa-aminophenyl polysilsesquioxane with tetrazinyl at the tail end to prepare a POSS-silicon dioxide compound, so as to construct an interface transition layer with gradient modulus. According to the invention, collaborative optimization of dielectric loss, thermal mechanical properties and interface bonding strength is realized, and the material has excellent properties of low dielectric loss, high thermal stability, high peel strength and the like, and is suitable for the fields of 5G communication, high-frequency electronic equipment and the like.

According to the modified water-based alkyd resin based on dicyclopentadiene and the preparation method of the modified water-based alkyd resin, the water-based alkyd resin is modified by combining diacrylic acid, cyclopentadiene modification and tung oil, and the rigidity of cyclopentadiene modification and the flexibility of tung oil achieve the modification effect of combining rigidity and softness; the problems of poor storage stability, low paint film hardness and insufficient water resistance of traditional water-based alkyd resin are successfully solved, the storage period of the water-based alkyd resin water-based paint is greatly prolonged, the formed paint film is high in drying speed and high in hardness and has good adhesive force, impact resistance, weather resistance and corrosion resistance, the production process is stable and controllable, and the production cost is low. Wide application prospects and economic values are realized.

The application belongs to the technical field of organic compound synthesis and the field of polymer preparation, and discloses a method for directly preparing a cycloolefin copolymer from dicyclopentadiene and ethylene based on a continuous flow reactor; the continuous flow reactor is used to efficiently prepare norbornene and derivatives thereof from ethylene and dicyclopentadiene, and then the norbornene and derivatives thereof are used to prepare a cycloolefin copolymer from excessive ethylene. The application uses dicyclopentadiene and ethylene as raw materials, realizes a continuous process from the synthesis of a cycloolefin monomer to the preparation of a cycloolefin copolymer, and the cycloolefin monomer does not need to be separated and stored and can directly participate in the polymerization reaction, so that the original complicated process is effectively simplified, energy consumption is reduced, the catalyst in the polymerization stage is not easy to be deactivated even at high temperature, the catalytic efficiency is high, and a high polymer yield can be obtained in a very short time.

The present application relates to the technical field of deep processing of petroleum chemical carbon five fraction oil, and particularly relates to a petroleum cracking carbon five fraction oil hydrofining method, wherein a polar competitive adsorbent is added into raw oil before the raw oil enters a main hydrogenation reaction, so that enrichment and deposition of cyclopentadiene (CPD) / dicyclopentadiene (DCPD) and chain double bond components in the catalyst are reduced; meanwhile, a low-acid hole-expanding Ni catalyst is used to reduce the polymerization deposition risk and maintain an effective hydrogenation rate, so that the problems of colloid deposition and pressure drop increase in the front section of the catalyst bed are relieved, and the problem that a Ni-based catalyst in the prior art cannot effectively inhibit the deposition of CPD components for a long time when hydrofining the CPD-containing carbon five fraction oil is solved.

The application relates to a weather-resistant color master batch for modified polypropylene cable protection pipes, which is composed of a carrier resin, a photo-thermal stable color powder, a filler and a grafting compatibility modifier; the photo-thermal stable color powder is composed of zinc dicyclopentadiene dimethylate, orange yellow, bright red, an antioxidant, an ultraviolet absorber and a dispersant; the dicyclopentadiene in the zinc dicyclopentadiene dimethylate has heat-reversible crosslinking properties, is disdimerized during heat processing, has good processing fluidity, is re-cyclized and addition-dimerized to be crosslinked after temperature reduction, so that the decomposition of the orange yellow and the bright red caused by cable heating is reduced; meanwhile, the antioxidant and the ultraviolet absorber have a compound synergistic effect, so that the weather resistance of the color master batch can be better improved; the modified polypropylene cable protection pipe prepared by using the color master batch has the advantages of color stability, reduced processing toxicity, good processing fluidity, low price and the like, and is more suitable for power cable protection pipe use.

The present invention provides a photocurable thermosetting resin composition, a dry film, a cured product, and an electronic component. Namely, a photocurable thermosetting resin composition having excellent printability, a dry film having a resin layer formed of the resin composition, which is excellent in crack resistance and adhesion, a cured product formed of the resin composition, which is excellent in crack resistance and adhesion, and an electronic component are provided. The photocurable thermosetting resin composition comprises a carboxyl group-containing resin, a photopolymerization initiator, an epoxy resin comprising an epoxy resin containing a dicyclopentadiene skeleton, a stress relaxing agent, and an inorganic filler, the stress relaxing agent being any one or more of an elastomer having two or more Tgs apart by 50°C or more at 200°C and a rubber particle having a shell layer and a core layer, the content of the stress relaxing agent being 1 to 13% by weight of the solid content of the composition, the inorganic filler comprising talc, the content of the inorganic filler being 5 to 20% by weight of the solid content of the composition.

The invention provides a production method and system of tetracyclododecene. The production method comprises the following steps: feeding a norbornene solution of dicyclopentadiene and gasified norbornene into a spray reactor, and reacting in the spray reactor to obtain a reaction product; the molar ratio of the norbornene to the dicyclopentadiene is (5-9): 1; buffering and depressurizing the reaction product to obtain reaction product liquid; and rectifying the reaction product liquid to respectively obtain norbornene and tetracyclododecene. The invention also provides a production system of tetracyclododecene. According to the production method, the spray reactor is used for reaction, so that the rate of converting the DCPD into the TCD can be remarkably improved, and the conversion rate of the DCPD and the selectivity of the TCD are improved.

The invention relates to the technical field of diene hydrogenation preparation, in particular to a preparation method of exo-tetrahydrodicyclopentadiene, which comprises the following steps of: performing catalytic hydrogenation on a dicyclopentadiene solution by using a circulating continuous flow bubbling hydrogenation reactor at the normal pressure and the temperature of 70-90 DEG C at the volume space velocity of 5h <-1 > and the hydrogen-oil volume ratio of 750-850 to obtain exo-tetrahydrodicyclopentadiene, automatically separating the hydrogenation catalyst at the tail end of the reactor to obtain a hydrogenation product, stirring and mixing an isomerization catalyst and the hydrogenation product at 90-110 DEG C, and carrying out catalytic isomerization to prepare exo-tetrahydrodicyclopentadiene; and rectifying and separating to obtain hanging tetrahydrodicyclopentadiene. According to the invention, the circulating continuous flow bubbling hydrogenation reactor is adopted for liquid phase hydrogenation, continuous production of exo-tetrahydrodicyclopentadiene is realized by a two-step method, the problem that catalytic hydrogenation and isomerization reaction are not matched is avoided, the conversion rate of exo-tetrahydrodicyclopentadiene is increased, and coking and impurity pollution of non-target products are reduced.

The invention relates to a synthesis method of 2, 5-norbornadiene and a cracking and addition reaction device of the 2, 5-norbornadiene, the device is characterized in that dicyclopentadiene is decomposed into cyclopentadiene at a high temperature, the cyclopentadiene is fully mixed in an acetone solvent and then fully contacted and reacted with diffused acetylene gas under the action of the addition reaction device, and the 2, 5-norbornadiene is obtained. Due to sufficient mixing and rapid reaction under a microscale, addition of dicyclopentadiene and cyclopentadiene, addition of dicyclopentadiene and acetylene and polymerization reaction of 2, 5-norbornadiene can be inhibited to a greater extent; unreacted cyclopentadiene is polymerized into dicyclopentadiene in a later process, so that recycling is facilitated; therefore, dangerous wastes are greatly reduced in the production process. A cracking device and an addition reaction device in the process are respectively formed by connecting four micro-channel assemblies and eight micro-channel assemblies in series. The method has the characteristics of high target product purity, high recovery rate, low reaction by-product content and the like.

The present invention addresses the problem of providing a method for producing TCD-DA having less impurities generated as by-products, by depositing materials in a reactor in a batch and performing a hydroformylation rection at a low pressure.　The method for producing tricyclodecane dialdehyde is characterized by depositing a catalyst, dicyclopentadiene, and a solvent in a reactor in a batch, increasing the pressure to 2.0-4.0 MPaG by means of a gas mixture of hydrogen and carbon monoxide, and performing a hydroformylation reaction in the gas mixture in which the molar ratio of hydrogen : carbon monoxide is 90:10 to 100:99.

The invention belongs to the technical field of electrochemical battery inactive part preparation raw materials, and particularly relates to a diaphragm, a diaphragm coating and application. The dicyclopentadiene phenol type epoxy resin matrix (the polymerization degree of more than 90% is 0, and the pore size adjusting filler is contained to form specific porosity and pore size) with special physical and chemical properties is adopted as the diaphragm coating and can be cooperatively matched with the ceramic synergistic filler, so that the tensile strength of the diaphragm is greatly improved; the air permeability and the hot shrinkage rate are further reduced. In addition, after the diaphragm coating is cured, the glass transition temperature can reach 200 DEG C or above and is superior to that of a traditional PE / PP diaphragm, and the high temperature resistance of the battery can be improved; and meanwhile, the cross-linked network structure of the dicyclopentadiene phenol epoxy resin also can inhibit the puncture of lithium dendrites.

The present application relates to the technical fields of organic metal compound synthesis, and discloses a production process method for synthesizing ferrocene based on one-pot method, which takes sodium, anhydrous ferrous chloride and dicyclopentadiene as raw materials, and completes the whole process of dicyclopentadiene depolymerization, sodium cyclopentadiene generation and ferrocene coordination synthesis in a non-protic solvent through gradient temperature control in one-pot method.The present application discards the disadvantages of multi-step reaction in traditional process, and does not need to prepare cyclopentadiene by pre-depolymerizing dicyclopentadiene, thus greatly simplifying the production process, reducing energy consumption and raw material loss, and achieving the product conversion rate of up to 85%, the purity of up to 99%, simple and controllable operation, adaptation to industrialized continuous production, and good economic and environmental benefits.

The invention relates to the technical field of shoe materials, in particular to shoe material sponge applied to shoes easy to wear and take off and a preparation method of the shoe material sponge. The shoe material sponge is prepared from the following raw materials in parts by weight: 70 to 80 parts of polyether polyol, 10 to 17 parts of polyester polyol, 3 to 8 parts of a chain extender, 5 to 12 parts of thiolated nano silicon dioxide, 0.3 to 0.8 part of a Grubbs catalyst, 3 to 10 parts of self-repairing microcapsules, 1 to 3 parts of an oxazolidine crosslinking agent, 1 to 2.5 parts of a foaming agent, 0.05 to 0.2 part of a catalyst, 1 to 2 parts of a foam stabilizer and 40 to 60 parts of isocyanate. The core material of the self-repairing microcapsule is dicyclopentadiene; the method has the advantage that the fatigue resistance of the sponge for the shoe material is improved.

The invention discloses a preparation method of high-purity cyclopentene, and belongs to the technical field of organic synthesis. The method comprises the following steps: firstly, depolymerizing dicyclopentadiene into cyclopentadiene; mixing the obtained gaseous cyclopentadiene with hydrogen according to a ratio, sequentially passing through a first-stage fixed bed reactor and a second-stage fixed bed reactor which are connected in series, and carrying out selective hydrogenation reaction under the action of a supported palladium catalyst to generate crude cyclopentene; and finally, carrying out dimerization reaction on the crude cyclopentene in an inert atmosphere to remove residual cyclopentadiene, carrying out normal-pressure distillation purification, and collecting fractions at 43-47 DEG C to obtain high-purity cyclopentene. The two-stage fixed bed continuous hydrogenation process is adopted, the operation is simple, the reaction condition is mild, the cyclopentadiene conversion rate is high, the cyclopentene selectivity is good, the product purity can reach 99.6% or above, and the method is suitable for industrial continuous production.

The present application relates to a kind of continuous synthesis of method of hanging tetrahydrodicyclopentadiene. Including: in fixed bed reactor, upper section is loaded with hydrogenation catalyst, middle is separated with inert material, lower section is loaded with isomerization catalyst, raw material dicyclopentadiene and reaction solvent are entered into fixed bed reactor from upper end, carry out hydrogenation and isomerization reaction, product flows out from lower end, obtain hanging tetrahydrodicyclopentadiene. This method can be realized in a fixed bed, namely dicyclopentadiene hydrogenation, isomerization reaction can be completed, so as to continuously prepare hanging tetrahydrodicyclopentadiene, simplify process flow, reduce the investment of device, while mild reaction condition, reaction product yield is higher, system can be long period stable operation.

Provided is a polyamide resin composition comprising a polyamide resin (A) and a phenolic compound (B), wherein the phenolic compound (B) is at least one compound selected from the group consisting of triphenolic compounds (B-1) represented by general formula (1) (wherein R1, R2, R3, R4, R5, and R6 are each independently a hydrogen atom, a halogen atom, a C1-C5 alkyl group, or a C1-C5 alkoxy group) and phenolic compounds (B-2) having a dicyclopentadiene-derived skeleton.

The invention discloses a self-repairing foam material and a preparation method thereof, and the method comprises the following steps: dispersing self-repairing microcapsules and a catalyst in a polymerization raw material solution, carrying out a polymerization reaction under certain conditions to form a polymer, and carrying out high temperature foaming on the polymer to obtain the self-repairing foam material, and dicyclopentadiene is contained in the self-repairing microcapsule. The method is adaptive to a PMI material preparation process, the problem that damage is difficult to self-repair when PMI is used as a thermosetting material can be solved, and the service life of PMI is prolonged.

This invention belongs to the field of polymer materials and relates to a method for preparing a multifunctional emulsion antioxidant and its application, specifically to an emulsion antioxidant that also absorbs ultraviolet light and its application. A multifunctional emulsion-type antioxidant comprises the following components: a phenolic primary antioxidant, wherein the phenolic primary antioxidant comprises a mixture of p-cresol and dicyclopentadiene copolymer (TH-CPL) and triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] (antioxidant 245); a thioester secondary antioxidant; a UV absorber; a light stabilizer; a nonionic surfactant; and deionized water; wherein the UV absorber is N-(ethoxycarbonylphenyl)-N'-methyl-N'-phenylformamidinium (UV-1), and the light stabilizer is a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidine) sebacate and 1-methyl-8-(1,2,2,6,6-pentamethyl-4-piperidine) sebacate (292).

Rubber composition for tires, the rubber composition comprising: 100 parts by mass of a diene rubber containing a styrene-butadiene copolymer rubber having a styrene content of 30% by mass or more; 50 to 200 parts by mass of carbon black having a nitrogen adsorption surface area N2SA of 100 to 500 m2 / g and N2SA / IA, which is a ratio of the nitrogen adsorption surface area N2SA (unit: m2 / g) to an iodine adsorption number IA (unit: mg / g), of 0.90 to 1.03; 5 to 50 parts by mass of a styrolated phenol compound represented by the structural formula (1); and 20 to 90 parts by mass of a sticky resin; wherein a mixed quantity of the styrofoamed phenol compound represents 15% by mass or more based on a quantity of the sticky resin: wherein n is 2 or 3;wherein the sticky resin is one or more types selected from the group consisting of a C9 petroleum resin, a phenolic resin, a coumaron indene resin, a terpene resin, a styrene resin, an acrylic resin, a rosin resin and a dicyclopentadiene resin.

The invention provides a high-frequency and high-speed resin composition and application thereof, and relates to the technical field of electronic materials. The high-frequency and high-speed resin composition provided by the invention comprises the following components in parts by mass: 10-100 parts of polyphenyl ether resin and 5-70 parts of a cross-linking agent, the cross-linking agent is a mixture of bis (vinyl benzyl) fluorene and bis (vinyl benzyl) dicyclopentadiene in a mass ratio of (0.1-100): 1. The resin composition containing bis (vinyl benzyl) fluorene, bis (vinyl benzyl) dicyclopentadiene and alkenyl-terminated modified polyphenyl ether resin can be obtained by adopting the raw materials, and a cured product of the resin composition has low dielectric constant, ultralow dielectric loss tangent, higher glass-transition temperature and high peel strength; the resin composition has a good application prospect in bonding sheets, copper-clad plates, insulating substrates, resin-clad metal foils, insulating films, electronic circuit substrates and electronic devices.

The invention provides a production method and system of norbornene. The method comprises the following steps: feeding a dicyclopentadiene solution and ethylene into a spray reactor, and reacting in the spray reactor to obtain a reaction product; wherein the molar ratio of the ethylene to the dicyclopentadiene is (20-40): 1; carrying out gas-liquid separation on the reaction product to obtain a gas phase and a liquid phase; carrying out first rectification on a liquid phase obtained by gas-liquid separation to obtain a light fraction containing norbornene and cyclopentadiene; and carrying out second rectification on the light fraction to obtain the norbornene. The invention also provides a production system capable of realizing the method. According to the method, the rate of converting the dicyclopentadiene into the norbornene, the conversion rate of the dicyclopentadiene and the selectivity of the norbornene can be improved, the reaction air pressure is relatively low, and meanwhile, the retention time can be greatly shortened.

This invention provides a high-reliability UV adhesive for polarizing films, composed of the following raw materials by weight percentage: 25-55% alicyclic epoxy resin, 3-15% dicyclopentadiene acrylate monomer, 10-30% acrylic acid-modified castor oil epoxy resin, 10-30% glycidyl ether type epoxy compound, 1-10% adhesion promoter, 0.3-3% sensitizer, and 0.5-8% photoacid generator. The UV adhesive of this invention exhibits high adhesion strength to COP films, maintains adhesion over time, and is resistant to yellowing, overcoming the shortcomings of conventional UV adhesives, such as low adhesion and degradation over time.

The invention relates to the technical field of catalysts and dicyclopentadiene dioxide synthesis, and discloses an environment-friendly selective layered catalyst and a preparation method and application thereof, and the preparation method of the layered catalyst comprises the following steps: (A) providing a hydrotalcite precursor; (B) providing a peroxy titanic acid complex; and (C) carrying out second contact on the hydrotalcite precursor provided in the step (A) and the peroxy titanic acid complex provided in the step (B) in an inactive atmosphere, and then recovering a solid product. When the layered catalyst provided by the invention is used for preparing dicyclopentadiene dioxide through oxidation of dicyclopentadiene, the conversion rate of dicyclopentadiene and the selectivity of dicyclopentadiene dioxide can be remarkably improved.

The application discloses a kind of halogen-free high-frequency copper-clad plate and its manufacturing method, belong to copper-clad plate preparation technical field, manufacturing method is as follows: fluorine-containing mercaptan grafting polybutadiene, styrene-butadiene-styrene copolymer, dicyclopentadiene phenol epoxy resin, toluene, butanone, propylene glycol monomethyl ether are added into mixing machine, after stirring and mixing, initiator, active ester curing agent, diamond-based flame-retardant filler are added, stirring and mixing 2-4h, obtain resin glue liquid;Glass cloth is placed in resin glue liquid and immersed after taking out, baking, obtain prepreg;Prepreg is laminated, the copper-clad plate obtained by the application has lower dielectric constant, better flame-retardant property, higher heat dissipation performance, lower water absorption and good mechanical processing, etc.Advantages, in the field of communication, vehicle-mounted millimeter wave radar, internet of things, automobile electronics and other fields of high multilayer high-frequency circuit board have broad application prospect.

The present application relates to the technical field of dicyclopentadiene polymerization, and particularly relates to an environment-friendly dicyclopentadiene polymer material, which is prepared from the following raw materials in parts by weight: dicyclopentadiene 80-90 parts, catalyst 0.003-0.05 parts, activator 1-3.5 parts, adjusting agent 20-30 parts and modified lignin 8-12 parts. In the preparation process of the DCPD polymer, the modified lignin, which is a raw material prepared on the basis of natural biomass, is added to improve the environmental performance of the DCPD polymer. After the lignin on the modified lignin and aluminum hydroxide are subjected to microwave treatment, the lignin is partially carbonized, the aluminum hydroxide is partially decomposed to generate aluminum oxide, and the surface of the modified lignin generates rich pores. These pores can absorb free DCPD in the DCPD polymer to reduce the release probability of DCPD, thereby reducing the peculiar smell of the product and further improving the environmental performance of the product.

The invention relates to the technical field of phenolic resin synthesis, in particular to cardanol type dicyclopentadiene phenolic resin as well as a preparation method and application thereof. The cardanol type dicyclopentadiene phenolic resin has a molecular structure as shown in a formula 1, and in the formula 1, an R1 group is at least one of H,-CH3,-CH2CH3 and the like; the polymerization degree n1 is 0 to 13. According to the cardanol type dicyclopentadiene phenolic resin, the high-performance electronic base resin with heat resistance, mechanical property and dielectric property is successfully prepared on the premise of being green and environment-friendly through a combination strategy of natural raw material replacement, structure and function integrated design, multi-performance synergistic realization, simple process and wide application; and a new way is provided for sustainable development of electronic materials.