37 results about "Norbornane" patented technology

This resin composition for an optical waveguide contains an epoxy compound (A). The epoxy compound (A) contains a first epoxy compound (a1) having a norbornane structure and a second epoxy compound (a2) having a silicon structure having 1 to 6 Si. The content of the second epoxy compound (a2) is 5 to 60 parts by mass per 100 parts by mass of the first epoxy compound (a1).

The invention relates to the technical field of flexible display materials, in particular to a semi-aromatic CPI film and a preparation method thereof. The invention relates to a semi-aromatic CPI film. The semi-aromatic CPI film is prepared by carrying out polymerization reaction on alicyclic dianhydride and diamine, the diamine comprises a diamine containing trifluoromethyl, a diamine containing benzimidazole and a diamine containing vinyl phenoxy; the alicyclic dianhydride comprises one or two of norbornane-2-spiro-alpha-cyclopentanone-alpha '-spiro-2'-norbornane-5, 5 ', 6, 6'-tetracarboxylic dianhydride and cyclobutane tetracarboxylic dianhydride, and the alicyclic dianhydride comprises one or two of norbornane-2-spiro-alpha-cyclopentanone-alpha '-spiro-2'-norbornane-5, 5 ', 6, in order to solve the problem that application of an existing polyimide film in a flexible substrate is limited due to the fact that optical properties, high temperature resistance, mechanical properties and dimensional thermal stability of the existing polyimide film are difficult to consider, the temperature resistance, the dimensional stability and the mechanical properties are enhanced while the optical properties of colorless transparent polyimide are kept, and the application prospect is wide. And the application of the flexible display substrate in the field of flexible display substrates is widened.

The present application relates to bicyclo[2.2.1]hept-5-en-2-ol and related compounds, methods of making them, and methods of using them as flavor and fragrance ingredients in food, cosmetic, pharmaceutical, consumer, and other compositions and products.

This invention relates to the field of functional textile materials technology, and discloses a fluorine-free waterproof fabric and its preparation process. The fluorine-free waterproof fabric is composed of a host-guest inclusion crosslinking type organosilicon synergistic film-forming agent, an organic small molecule film-forming component, a crosslinking promoter, a dispersant stabilizer, a softening agent, and a solvent. The host-guest inclusion crosslinking type organosilicon synergistic film-forming agent is prepared by forming a host-guest inclusion structure with β-cyclodextrin and adamantane carboxylic acid, followed by reactive modification with 3-isocyanate propyltriethoxysilane. The organic small molecule film-forming component is norbornene-2-carboxylic acid. Through host-guest inclusion, crosslinking, and organic small molecule synergistic film formation, a stable and dense fluorine-free waterproof functional layer is formed on the fabric surface. This invention significantly improves waterproof performance and its washability and abrasion resistance without using fluorine-containing compounds, while also maintaining the soft hand feel of the fabric, demonstrating good environmental friendliness and application prospects.

The invention relates to the technical field of materials, and discloses a polypropylene material with high strength and strong anti-pressure ability and a preparation method, the polypropylene material is prepared by taking polypropylene as a base material and a linen fiber modified additive and the like as auxiliary materials through mixing and extrusion processes, the linen fiber modified additive is prepared by modifying macromolecular substances with norbornane-erythritol alternate connection structures on the surfaces of linen fibers, and the macromolecular substances can react with anhydride groups of maleic anhydride grafted polypropylene in the subsequent melt extrusion process, so that interlocking can be formed between the linen fibers and a polypropylene matrix; according to the present invention, the macromolecular substance structure contains the high bond energy silicon-oxygen bond and the rigid ring structure, such that the stability of the polypropylene can be improved so as to further enhance the impact resistance and other mechanical properties of the polypropylene.

A resin composition capable of forming a cured resin product having a relative dielectric constant of 2.5 or less at 10 GHz and a dielectric loss tangent of 0.005 or less at 10 GHz by thermal curing, the resin composition comprising (A) a polymer having a silicon phenylene skeleton, an isocyanuric acid skeleton containing an epoxy group, and a norbornane skeleton in the main chain, and (B) an epoxy curing accelerator.

The application discloses a binary amine containing cyclohexane and norbornane structure, a preparation method and application in preparing transparent nylon. The application synthesizes a binary amine monomer containing cyclohexane and norbornane structure, and copolymerizes the binary amine monomer with aliphatic binary acid or norbornane-containing binary acid, aliphatic binary amine or norbornane-containing binary amine, to synthesize a transparent nylon containing norbornane structure. The cyclic structure with norbornane on the molecular chain can cause the regularity of the molecular chain to be destroyed, the crystallization ability to be reduced, the transparency of the nylon to be effectively improved, the processability of the nylon to be effectively improved due to the fact that a large number of cyclic structures are contained in the polymer chain and the polymer chain is a straight chain structure, the nylon has excellent thermal performance and mechanical performance, and the nylon has good solvent resistance and low dielectric constant.

This invention discloses a polydicyclopentadiene material, prepared from dicyclopentadiene monomers and phenolic or amine compounds containing norbornene or norbornene structures under the catalysis of a main catalyst and a co-catalyst. The phenolic or amine compounds containing norbornene or norbornene structures not only possess antioxidant capabilities but can also undergo cross-linking reactions with dicyclopentadiene under the action of the dicyclopentadiene ring-opening metathesis polymerization system and the catalyst, forming a fully interpenetrating polymer network with dicyclopentadiene. This simultaneously achieves the purposes of reinforcement, toughening, and anti-aging, resulting in a polydicyclopentadiene material with high strength, toughness, and anti-aging properties, as well as good dielectric properties.

The present application relates to bicyclo[2.2.1]heptane and bicyclo[2.2.1]heptene derivatives, methods of making them, and methods of using them as flavor and fragrance ingredients in food, cosmetic, pharmaceutical, consumer, and other compositions and products.

A polyimide resin comprising a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from a diamine, the structural unit A comprising a structural unit (A1) derived from a tetracarboxylic dianhydride having 2 norbornane skeletons in the molecule, and the structural unit B comprising a structural unit (B1) derived from a compound represented by the following formula (b1).

The invention relates to the technical field of polymer catalysts, and particularly discloses a metallocene catalyst for synthesizing transparent polypropylene and a preparation method of the metallocene catalyst. According to the present invention, the prepared dihalogen double norbornene alkyl zirconocene is adopted as the main catalyst, the MAO and the carrier are added to obtain the supported metallocene catalyst, and the metallocene ring is connected with the rotatable bridged ring compound with the unique steric hindrance in the form of the carbon-carbon single bond, such that the polymerization reaction of the propylene can be easily performed while the polymerization reaction of the propylene is catalyzed so as to achieve the good polymerization effect; a 1-hexene monomer can be well inserted, polypropylene randon copolymer is obtained, the polypropylene randon copolymer is used for catalyzing copolymerization of 1-hexene and propylene, branched chains with four carbons can be irregularly introduced to a polypropylene long chain, and the branched chains reduce the crystallinity of polypropylene and improve the transparency and softness of polypropylene.

The invention relates to laser welding of objects, to a laser transmission welding method, and to a laser transparent polymer composition used therein, comprising at least a combination of: (A) a polybutylene terephthalate resin (PBT resin); and (B) a dialkali metal salt of norbornane-2,3-dicarboxylic acid, or a substituted derivative thereof; and / or a polyester copolymer comprising repeating units derived from the dialkali metal salt or substituted derivative thereof incorporated into the PBT resin (referred to as A / B copolymer).

The invention designs a brand-new synthesis route and preparation method of norbornane diisocyanate (a compound shown as a formula VI, NBDI), the whole process uses bulk and cheap cyclopentadiene and acrylonitrile as starting raw materials, and uses extremely low catalyst dosage (carbonyl chloride bis (triphenylphosphine) rhodium (I)), so that the preparation method is suitable for industrial production. 0.00005), so as to achieve the purposes of higher efficiency (the yield of the whole route reaches 50%), higher safety and lower cost in preparation of norbornane diisocyanate. The method has the potential of being suitable for large-scale industrial production and has wide industrial application prospects.

The invention relates to a cyclopropyl norbornane compound, a preparation method and application, and belongs to the technical field of chemical engineering, the structural formula of the cyclopropyl norbornane compound is as follows: cyclopropyl and norbornane alkyl are introduced into the structure of the cyclopropyl norbornane compound, and the cyclopropyl and norbornane alkyl have higher tension, so that the mass calorific value is increased.

The present disclosure relates to a norbornene derivative and a pharmaceutical use thereof. Specifically, the present disclosure relates to a compound represented by formula I or a pharmaceutically acceptable salt thereof, and a use thereof in the preparation of a drug for treating cardiovascular and cerebrovascular diseases.

The present application relates to bicyclo[2.2.1]heptane and bicyclo[2.2.1]heptene derivatives, methods of making them, and methods of using them as flavor and fragrance ingredients in food, cosmetic, pharmaceutical, consumer, and other compositions and products.

Provided is a novel fumaric acid ester resin that has an excellent storage modulus at high temperatures and a film that includes the fumaric acid ester resin. A fumaric acid ester resin according to the present invention includes a residue unit represented by formula (1) and a residue unit represented by formula (2).　In formula (1), R1 and R2 each independently represent an alkyl group that has a norbornane skeleton.　In formula (2), R3 and R4 each independently represent a C1–12 straight-chain alkyl group, a C3–12 branched alkyl group, or a C3–6 cyclic alkyl group.

A method for makeup including (A) applying to skin a composition X including components (A1) and (A2). (A1) includes a polymer containing a norbornane moiety and / or a silicone-modified Pullulan and (A2) includes a volatile oil. The method further includes (B) applying to the skin a composition Y including a component (B1), other than the composition X, where (B1) includes one or more selected from the group consisting of polyols and liquid oils.

A production method for producing a target compound represented by the following formula (1), the production method including: a step (A) of subjecting a mixed liquid containing a starting compound represented by the following formula (2) and a solvent to a hydrogenation reduction in the presence of a catalyst having hydrogenation ability, wherein, in the step (A), water is removed from the reaction system: wherein R represents H, CH3, or C2H5, wherein R represents H, CH3, or C2H5, and R1 represents CH3, C2H5, C3H7, or C4H9.

A polyimide resin comprising a structural unit A derived from tetracarboxylic dianhydride and a structural unit B derived from a diamine, wherein the structural unit A comprises a structural unit (A1) derived from tetracarboxylic dianhydride having two norbornane skeletons in the molecule, and the structural unit B comprises a structural unit (B1) derived from a compound represented by the following formula (b1), wherein the ratio of the structural unit (B1) in the structural unit B is 35 mol% or more and 95 mol% or less.

The present application relates to bicyclo[2.2.1]hept-5-en-2-ol and related compounds, methods of making them, and methods of using them as flavor and fragrance ingredients in food, cosmetic, pharmaceutical, consumer, and other compositions and products.

The invention relates to the technical field of materials, and discloses a polymer composite material for manufacturing a plastic shell of an electric appliance, the polymer composite material is prepared by taking PET as a base material and taking an elastomer, modified quartz fiber and the like as auxiliary materials through melt extrusion granulation, the modified quartz fiber is prepared by modifying a macromolecular substance on the surface of the quartz fiber, and the modified quartz fiber is prepared by a melt extrusion granulation method. The macromolecular substance contains carboxyl substituent groups in an L-lysine structure, and the carboxyl substituent groups can participate in a chain extension process of PET, so that strong interlacing is generated between the macromolecular substance and a PET molecular chain, and a cross-linked network taking quartz fiber as a cross-linked core point is formed, thereby efficiently utilizing the potential of the quartz fiber, and improving the crosslinking property of the PET. And the surface of the composite material has excellent mechanical properties. Besides, the macromolecular substance structure contains a rigid benzo norbornane heterocyclic structure, and the rigid heterocyclic structure can greatly improve the stability of a PET molecular chain, so that the composite material can show excellent high-temperature resistance.

A method for producing a target compound represented by the following formula (1), wherein a mixed solution containing a raw material compound represented by the following formula (2) and a solvent is supplied to a hydrogenation reduction in the presence of a catalyst having hydrogenation ability in a process (A), and water is removed from the reaction system in the process (A), in the formula (1), R represents H, CH3, or C2H5, and in the formula (2), R represents H, CH3, or C2H5, and R1 represents CH3, C2H5, C3H7, or C4H9.

The objective of the present invention is to provide a novel bifunctional compound having a norbornane skeleton in the molecule and having a bulky substituent at a C2 asymmetric position.　The above problem is solved by the following bifunctional compound. More specifically, the bifunctional compound according to the present invention is represented by formula (1). In formula (1), Cy represents a cyclohexyl group, and n represents 0 or 1.

Disclosed is a thermoplastic resin composition, a method for producing the same, and a use thereof. The thermoplastic resin composition contains a structural unit derived from a compound represented by general formula (A), wherein Z1 ring represents a cycloalkyl group having 6 to 8 carbon atoms, a bicycloalkyl group having 6 to 10 carbon atoms, or a bridged cycloalkyl group having 10 to 12 carbon atoms, wherein the number of carbon atoms includes 2 carbon atoms common to a norbornane ring; X represents an alkylene group having 1 to 4 carbon atoms; and R1 and R2 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 4 carbon atoms. The thermoplastic resin composition further contains an optional structural unit derived from a compound represented by general formula (B). The thermoplastic resin composition has advantages such as a high Abbe number, a high refractive index, a high glass transition temperature, and a high light transmittance.

The invention relates to a norbornane inserted Suzuki polymerization method, which comprises the following steps: carrying out a multi-component C-C coupling reaction on diiodo aromatic hydrocarbon, diaryl boron ester and a norbornene derivative under the catalysis of a palladium chloride (pi-cinnamyl) dipolymer ([(Cinnamyl) PdCl] 2) to prepare a linear alternating aromatic ring-norbornane polymeric membrane material. Most monomers are commercial products; the reaction conditions are mild; the substrate compatibility is high; and through multi-component reaction, the monomers can be flexibly combined.

This invention provides a novel compound that can effectively prevent the proliferation of drug-resistant hepatitis B viruses. [Solution] A hydrophobic tag and morphothiazine, which is an allosteric modulator of the hepatitis B virus core protein, are linked by a linker. The ring-type carbocyclic is any of the following: adamantane ring, norbornene ring, norbornane ring, perhydroindene ring, decalin ring, perhydrofluorene ring, perhydroanthracene ring, perhydrophenanthrene ring, tricyclodecane ring, tricycloundecane ring, tetracyclododecane ring, perhydroacenaphthene ring, or perhydrophenalene ring. The novel compound according to the present invention can effectively suppress the proliferation of drug-resistant HBV.