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293 results about "Polyrotaxane" patented technology
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A polyrotaxane is a type of mechanically interlocked molecule consisting of strings and rings, in which multiple rings are threaded onto a molecular axle and prevented from dethreading by two bulky end groups. As oligomeric or polymeric species of rotaxanes, polyrotaxanes are also capable of converting energy input to molecular movements because the ring motions can be controlled by external stimulus. Polyrotaxanes have attracted much attention for decades, because they can help build functional molecular machines with complicated molecular structure.
Hard coat film, polarizing plate, and image display
ActiveUS20090214871A1Deterioration in brittlenessHigh surface hardnessMaterial nanotechnologyStarch dervative coatingsOrganic solventPolyrotaxane
A hard coat film includes a transparent plastic film substrate; and a hard coat layer, wherein the hard coat layer is formed of a composition for forming a hard coat layer, the composition containing the following component (A), component (B), and an organic solvent:Component (A): a polyrotaxane,Component (B): a monomer having two or more ethylenically unsaturated groups.
Owner:FUJIFILM CORP
Compound comprising crosslinked polyrotaxane
InactiveUS6828378B2High breaking strengthAvoid eliminationSkin implantsEye implantsPolyrotaxanePhotochemistry
A novel compound and novel gelatinous substance which have high absorbability, uniform expansion, and elasticity. Although conventional gels include chemical gels and physical gels, no novel gels or compounds have been realized which have fracture resistance, high entropic elasticity, and biodegradability. The present invention provides a novel compound and a novel gelatinous substance which each comprises a crosslinked polyrotaxane obtained by chemically bonding two or more polyrotaxane molecules through the cyclic molecules or rotators thereof.
Owner:TOUDAITLO LTD
Compound comprising crosslinked polyrotaxane
InactiveUS20030138398A1High breaking strengthBiocideCyclodextrin adhesivesPolyrotaxanePhotochemistry
A novel compound and novel gelatinous substance which have high absorbability, uniform expansion, and elasticity. Although conventional gels include chemical gels and physical gels, no novel gels or compounds have been realized which have fracture resistance, high entropic elasticity, and biodegradability. The present invention provides a novel compound and a novel gelatinous substance which each comprises a crosslinked polyrotaxane obtained by chemically bonding two or more polyrotaxane molecules through the cyclic molecules or rotators thereof.
Owner:TOUDAITLO LTD
Anode-Protecting Layer for a Lithium Metal Secondary Battery and Manufacturing Method
ActiveUS20190051905A1Improve lithium ion conductivityReduce thicknessSolid electrolytesCell electrodesTensile strainPolyrotaxane
Provided is a lithium secondary battery, comprising a cathode, an anode, and a porous separator or electrolyte disposed between the cathode and the anode, wherein the anode comprises: (a) an anode active layer containing a layer of lithium or lithium alloy, in a form of a foil, coating, or multiple particles aggregated together, as an anode active material; and (b) a thin layer of a high-elasticity polymer, disposed between the anode active layer and the porous separator or electrolyte; the polymer having a recoverable tensile strain from 2% to 1,500%, a lithium ion conductivity no less than 10−6 S / cm (typically up to 5×10−2 S / cm) at room temperature, and a thickness from 1 nm to 10 μm, wherein the high-elasticity polymer contains a polyrotaxane network having a rotaxane structure or a polyrotaxane structure at a crosslink point of the polyrotaxane network.
Owner:GLOBAL GRAPHENE GRP INC
Solvent-free crosslinked polyrotaxane material and process for production of same
A material comprising crosslinked polyrotaxanes which exhibits desired viscoelasticity, particularly stress-strain characteristics with a wide low-stress region, in spite of being free from solvent; and a process for production of the same. The material comprises a first polyrotaxane bearing first cyclic molecules and a second polyrotaxane bearing second cyclic molecules, and the first and second polyrotaxanes are crosslinked via the first and second cyclic molecules. The material is free from solvent and exhibits a stress of 2.0 MPa or below at 50% strain.
Owner:ASM
Polymer film, flexible light emitting element display device, and rollable display device
ActiveUS20150218323A1High elongationIncrease elasticitySynthetic resin layered productsSolid-state devicesPolymer sciencePolyrotaxane
The present invention relates to a polymer film containing a binder resin and polyrotaxane having a specific structure, and a flexible light emitting element display device and a rollable display device including the coating film.
Owner:LG CHEM LTD
Sizing agent-coated reinforcing fibers, method for producing sizing agent-coated reinforcing fibers, prepreg, and fiber-reinforced composite material
Sizing agent-coated reinforcing fibers include reinforcing fibers and a sizing agent containing a polyrotaxane, the reinforcing fibers being coated with the sizing agent. Provided are sizing agent-coated reinforcing fibers that provide a fiber-reinforced composite material with excellent mechanical properties, a method for producing the sizing agent-coated reinforcing fibers, a prepreg including the sizing agent-coated reinforcing fibers, and a fiber-reinforced composite material with excellent mechanical properties including the sizing agent-coated reinforcing fibers.
Owner:TORAY IND INC
Polyrotaxane, crosslinked structure comprising polyrotaxane and polymer, and processes for producing these
A process is provided by which a polyrotaxane including cyclic molecules having a relatively long graft chain is easily obtained. Also provided is a polyrotaxane which includes cyclic molecules having a radical polymerization initiation site and is for use as a raw material in the process. The polyrotaxane comprises: a pseudo-polyrotaxane comprising cyclic molecules clathrated with a linear molecule, the cavities of the cyclic molecules having been pierced by the linear molecule; and blocking groups disposed respectively at both ends of the pseudo-polyrotaxane so as not to release the cyclic molecules. The cyclic molecules in the polyrotaxane have a radical polymerization initiation site.
Owner:ADVANCED SOFTMATERIALS INC
Photosensitive hydrogel containing cyclodextrin and azobenzene and preparation method of photosensitive hydrogel
The invention discloses a preparation method of a photosensitive hydrogel containing a cyclodextrin and an azobenzene. The method comprises the following steps: mixing polyethylene glycol PEG10K with an Alpha-cyclodextrin so as to prepare a polyrotaxane hydrogel; then, adding water-soluble dendrimers Me-G2-Azo into the polyrotaxane hydrogel so as to convert the hydrogel into sol; and reassembling and decomposing the sol under the alternate irradiation of ultraviolet light and visible light so as to prepare the photosensitive hydrogel containing the cyclodextrin and the azobenzene. The photosensitive hydrogel disclosed by the invention is a ternary system hydrogel which contains the Alpha-cyclodextrin, the polyethylene glycol (PEG10K) and the second generation of dendrimers (Me-G2-Azo) modified by the azobenzene. The photosensitive hydrogel disclosed by the invention is good in biocompatibility and easy to prepared, and can be applied to the fields of preparation of photoswitches, optically-controlled motors, release of optically-controlled medicines and the like.
Owner:EAST CHINA NORMAL UNIV
Material having cross-linked polyrotaxane, and method for producing same
ActiveUS20120316278A1Increase flexibilityHigh dielectric constantPharmaceutical non-active ingredientsCross-linkPolyrotaxane
Disclosed are a material having high flexibility and a high dielectric constant, and a method for producing same: a material having a first polyrotaxane and a second polyrotaxane, wherein the first polyrotaxane comprises first blocking groups being disposed at both ends of a first pseudo-polyrotaxane—formed from the opening of a first circular molecule being enclathrated by being skewered by a first linear chain molecule—in a manner so that the first circular molecule does not detach; the second polyrotaxane comprises second blocking groups being disposed at both ends of a second pseudo-polyrotaxane—formed from the opening of a second circular molecule being enclathrated by being skewered by a second linear chain molecule—in a manner so that the second circular molecule does not detach; said first and second polyrotaxane are formed from crosslinking with the first and second circular molecules therebetween; said material is solvent free; and the material has a dielectric constant at 1 kHz of at least 6.0.
Owner:TOYODA GOSEI CO LTD
Photocrosslinkable polyrotaxane, composition comprising the photocrosslinkable polyrotaxane, crosslinked body derived from the composition, and methods for producing same
Disclosed are: a photocrosslinkable polyrotaxane having a high scratch resistance, low hysteresis loss and so on; a composition comprising the photocrosslinkable polyrotaxane and so on; a crosslinked body obtained from the composition; and methods for producing the same. Specifically disclosed are: a photocrosslinkable polyrotaxane comprising a cyclic molecule of polyrotaxane, wherein pseudo-polyrotaxane is formed by piercing the opening of a cyclic molecule by a straight-chain molecule to form a clathrate therewith and blocking groups are positioned at both ends of the pseudo-polyrotaxane to prevent the withdrawal of the cyclic molecule, said cyclic molecule of polyrotaxane having a group represented by -M-Y (wherein M is represented by formula II; X represents a straight-chain alkylene group having 1-8 carbon atoms, etc.; n is 1-10 on average; and Y represents a group having a photopolymerizable group); a composition comprising the photocrosslinkable polyrotaxane and so on; a crosslinked body derived from the composition; and methods for producing the same.
Owner:株式会社ASM
Photochromic composition
ActiveUS20160222285A1Improved color developabilityIncrease speedSpectales/gogglesLayered productsMolecular compositionPolyrotaxane
A photochromic composition comprising (A) a polyrotaxane having a composite molecular structure composed of an axial molecule and a plurality of cyclic molecules clathrating the axial molecule and (B) a photochromic compound.
Owner:TOKUYAMA CORP
Material for curable solvent-based topcoating material, and coating material and coating film comprising or formed from the same
ActiveUS20090042034A1Improve scratch resistanceAvoid crackingSynthetic resin layered productsInksPolyrotaxaneSolvent based
[Object] To provide a coating material for a curable solvent-based topcoating material, having excellent marring resistance, chipping resistance, producing no crack and excellent in performances such as weatherability, stain resistance, adhesion and the like, and a curable solvent-type topcoating material using such a material.[Solving Means] A coating material is blended preferably in an amount of 60 to 90% by mass relative to paint film forming components thereby to form a curable solvent-based topcoating material. The coating material includes an oleophilic polyrotaxane which includes a cyclic molecule, a linear molecule including the cyclic molecule with piercing through the cyclic molecule, and blocking groups which are placed at both end terminals of the linear molecule to prevent the cyclic molecule from leaving from the linear molecule, at least one of the above-mentioned liner molecule and the cyclic molecule having hydrophobic modification group.
Owner:NISSAN MOTOR CO LTD +1
Hard coating film
ActiveUS20140079937A1Improve mechanical propertiesHigh strengthCosmetic preparationsToilet preparationsMethacrylatePolymer science
The present invention relates to a hard coating film including a hard coating layer comprising: a crosslinked product of (a) a polyrotaxane compound including a macrocycle to which a lactone-based compound is bonded, wherein a (meth)acrylate-based compound is introduced at the end of the lactone-based compound at a ratio of 40 mol % to 70 mol %, a linear molecule penetrating the macrocycle, and blocking groups arranged at both ends of the linear molecule and preventing the macrocycle from escaping; and (b) a binder resin.
Owner:LG CHEM LTD
Gel composition and method for producing same
InactiveUS20090030108A1Improve shock absorptionEasy to controlProsthesisOptical elementsPolyrotaxaneRefractive index
A gel composition is provided, which in addition to being able to expect that various properties attributable to polyrotaxane will be retained, easily ensures stability, has superior shock absorbability and facilitates control of refractive index. The present invention provides a gel composition comprising a material having a network structure containing a polyrotaxane and a non-aqueous solvent, applications of the gel composition, and a process for preparing the gel composition.
Owner:THE UNIV OF TOKYO
Hard coating film
ActiveCN104066778AHigh strengthCurl minimizedPolyurea/polyurethane coatingsCyclodextrin coatingsPolyrotaxaneCyclic compound
The present invention relates to a hard coating film including a hard coating layer comprising: a crosslinked product of (a) a polyrotaxane compound including a macrocycle to which a lactone-based compound is bonded, wherein a (meth)acrylate-based compound is introduced at the end of the lactone-based compound at a ratio of 40 mol % to 70 mol %, a linear molecule penetrating the macrocycle, and blocking groups arranged at both ends of the linear molecule and preventing the macrocycle from escaping; and (b) a binder resin.
Owner:LG CHEM LTD
Charging member, electrophotographic process cartridge, and electrophotographic apparatus
InactiveUS20130223886A1High quality imagingAvoid leavingElectrographic process apparatusElectrographic processes using charge patternPolyrotaxaneEngineering
The present invention aims to achieve compatibility between high conductivity and durability against the application of a DC voltage in the charging member of an electrophotographic apparatus for maintaining the image quality of the electrophotographic apparatus in association with an increase in speed of the electrophotographic apparatus and more severe use conditions thereof in recent years. Provided is a charging member having a conductive support and a conductive elastic layer, in which: the elastic layer contains a polymer having an alkylene oxide chain in a molecule thereof, an ion conductive agent, and a polyrotaxane; and the polyrotaxane has a structure in which a linear molecule penetrates the inside of the ring of a cyclic molecule having an ionic group, the linear molecule has two block groups, and the block groups are placed at both terminals of the linear molecule to prevent the cyclic molecule from leaving the linear molecule.
Owner:CANON KK
Hydrophobic modified polyrotaxane and crosslinked polyrotaxane
[Object] To provide a hydrophobic modified polyrotaxane soluble in an organic solvent, and a crosslinked polyrotaxane using this.[Solving Means] A hydrophobic modified polyrotaxane has a cyclic molecule, a linear molecule including the cyclic molecule with piercing through the cyclic molecule, and blocking groups which are placed at both end terminals of the linear molecule to prevent the cyclic molecule from leaving from the linear molecule. The cyclic molecule is cyclodextrin, and each of all or a part of the hydroxyl groups in the cyclodextrin is modified with a hydrophobic modification group.A crosslinked polyrotaxane is formed by combining this hydrophobic modified polyrotaxane and a polymer through the cyclic molecule.
Owner:NISSAN MOTOR CO LTD +1
Polyrotaxanes and uses thereof
A polyrotaxane containing an affinity binding group has been designed and prepared. The polyrotaxane of the invention can be used for characterization and determination of the three-dimensional structures of biological molecules, such as proteins.
Owner:PURDUE RES FOUND INC
Silt hardening agent and preparation method and application method thereof
The invention relates to a silt hardening agent. The silt hardening agent is characterized by comprising, by weight, 1%-5% of sodium polyacrylate, 2%-8% of biomass activated carbon, 2%-7% of sodium lignin sulfonate, 1%-5% of polyrotaxane, 4%-25% of reduced graphene oxide, 15%-50% of cement, 5%-25% of quicklime and 10%-35% of coal ash. The hardening agent is non-toxic and harmless and can be used on a large scale; synergistic effect among the raw materials is achieved, moisture content of silt can be effectively reduced, and strength of the silt is improved to meet requirements of earthwork reclamation; heavy metals and organic substances in the silt can be effectively sealed, and risk of secondary exposure of pollutants is avoided.
Owner:宁波国科微藻科技有限公司 +2
Crosslinking composition having a polyrotaxane and a compound having two or more oxirane groups and/or oxetane groups
ActiveUS20160122605A1Improve toughnessMaintenance characteristicAdhesivesPolyester coatingsEpoxyEndcapping
The present invention provides a material of high toughness that could not have been provided by an epoxy resin alone. The present invention provides a crosslinking composition having (A) one or more polyrotaxanes in which end-capping groups which prevent dissociation of the linear group are situated at both ends of a pseudo-polyrotaxane formed by inclusion of a linear molecule in the opening of a cyclic molecule by being threaded therethrough, the polyrotaxane having on the cyclic molecule a functional group that is capable of reacting with the oxirane group and / or the oxetane group, the functional group being one or more selected from the group consisting of carboxylic acid groups, carboxylate groups, primary amine groups, secondary amino groups, tertiary amino groups, phenol groups, the oxirane group, and the oxetane group, and (B) a compound having two or more oxirane groups and / or oxetane groups; and a crosslinked product employing the composition.
Owner:ASM
Muck foundation material and method for constructing roadbed by using foundation material
The invention provides a muck foundation material and a method for constructing a roadbed by using the foundation material. The foundation material comprises 50-70 parts of muck, 6-8 parts of a muck curing agent, 6-12 parts of pulverized coal ash, 6-12 parts of ground slag, 6-12 parts of cement, 0.8-1.5 parts of a secondary curing agent, 3-4 parts of emulsion powder, and 0.3-0.5 part of a stabilizing agent, wherein the muck curing agent comprises cinder, modified diatomite, attapulgite, silica fume, powdered activated carbon, peroxide, potassium permanganate, iron powder, polyrotaxane, sodiumpolyacrylate, an alkaline stimulating agent, a water reducing agent and a thickening agent. The muck foundation material is prepared through the following steps: first, curing the muck with the muck curing agent, then adding other raw materials, and performing secondary curing through the secondary curing agent, so that the muck foundation material is prepared. According to the muck foundation material disclosed by the invention, the curing course of the muck is simple, short in time and high in efficiency, the cured sludge and muck cannot generate secondary pollution, and the requirements ofthe foundation materials can be met.
Owner:湖北恒沁环保科技有限责任公司
Modified hydrophilic polyrotaxane and cross-linked polyrotaxane
To provide a modified hydrophilic polyrotaxane which is soluble in water or an aqueous solvent, a cross-linked polyrotaxane produced using the modified hydrophilic polyrotaxane, and a solvent for dissolving the modified hydrophilic polyrotaxane therein. A modified hydrophilic polyrotaxane having a cyclic molecule, a linear molecule which includes the cyclic molecule with piercing through the cyclic molecule, and capping groups which are placed at both end termini of the linear molecule and serve to prevent the cyclic molecule from leaving from the linear molecule. The cyclic molecule is cyclodextrin, and each of all or some of the hydroxyl groups in the cyclodextrin is modified with a hydrophilic modification group. A cross-linked polyrotaxane comprising the modified hydrophilic polyrotaxane and a polymer linked through a cyclic molecule. A solvate for dissolving the modified hydrophilic polyrotaxane therein comprising water, an aqueous solvent or a combination thereof.
Owner:NISSAN MOTOR CO LTD +1
Supramolecular self-assembly biological chip, and preparation method and application thereof
InactiveCN102539777ARich varietyReduce non-specific adsorptionMicrobiological testing/measurementAnalysis by material excitationPolyrotaxaneThree-dimensional space
The invention provides a supramolecular self-assembly biological chip. The supramolecular self-assembly biological chip comprises a substrate (1), first chain molecules (3) which are fixed on the surface of the substrate, and second chain molecules (4) which are fixed on the surface of the substrate, wherein the first chain molecules and the second chain molecules are fixed on the substrate at intervals; part of one end, which is far away from the substrate, of each first chain molecule is included by cyclodextrin (2); the cyclodextrin comprises a functional group which can be directly or indirectly bound with protein molecules; and each second chain molecule is not longer than each first chain molecule. Poly(pseudo)rotaxane which is formed by coating the cyclodextrin and the first chain molecules and the second chain molecules which are arranged uniformly at the intervals are arranged on a self-assembly layer on the surface of the biological chip, a three-dimensional space has a dense, controllable and changeable structure, and compared with a two-dimensional surface, the three-dimensional space can fix more detection molecules such as the protein molecules. Moreover, the invention also provides a preparation method and application of the biological chip.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
Modified hydrophilic polyrotaxane and cross-linked polyrotaxane
[Object] To provide a modified hydrophilic polyrotaxane which is soluble in water or a water-like solvent, a cross-linked polyrotaxane using this, and a solvent for dissolving the modified hydrophilic polyrotaxane.[Solving Means] A modified hydrophilic polyrotaxane has a cyclic molecule, a linear molecule including the cyclic molecule with piercing through the cyclic molecule, and blocking groups which are placed at both end terminals of the linear molecule to prevent the cyclic molecule from leaving from the linear molecule. The cyclic molecule is cyclodextrin, and each of all or a part of the hydroxyl groups in the cyclodextrin is modified with a hydrophilic modification group.A cross-linked polyrotaxane is formed by combining this modified hydrophilic polyrotaxane and a polymer through the cyclic molecule.A solvent for dissolving this modified hydrophilic polyrotaxane contains at least one of water and a water-like solvent.
Owner:NISSAN MOTOR CO LTD +1
Stereolithographic method and composition
InactiveCN107073816AImprove mechanical propertiesImprove performanceAdditive manufacturing apparatusImpression capsPolyrotaxaneOligomer
Owner:DWS SRL
Epoxy resin composition, resin cured product, fiber-reinforced composite material, and prepreg
There is provided a cured product of an epoxy resin composition, in which the compounding composition and the phase-separated structure of the epoxy resin composition are controlled so that the balance between rigidity and toughness of the cured product is superior compared with those of cured products of conventional epoxy resin compositions. A cured product of an epoxy resin composition, which has both superior rigidity and superior toughness compared with conventional materials can be produced by curing an epoxy resin composition comprising an epoxy resin, a polyrotaxane having graft-chain-modified cyclic molecules and a curing agent for the epoxy resin.
Owner:TORAY IND INC
Base material for tissue reconstruction, implantable material, and methods of preparing the same
InactiveUS20030124168A1Fast bondingPromote decompositionSurgical adhesivesArtificial cell constructsPolyrotaxaneTissue reconstruction
Base materials for tissue regeneration which enable the tissue regeneration, have mechanical properties needed in the tissue regeneration and can disappear via degradation in vivo after the completion of the tissue regeneration; and implantable materials with the use of the same. The above-described base materials for tissue regeneration comprise polyrotaxane, wherein biocompatible groups having bulky substituents have been introduced via hydrolyzable bond into both ends of a linear molecule penetrating plural cyclic molecules, or a polyrotaxane hydrogel having a network structure formed by crosslinking the cyclic molecules to each other, the biocompatible groups to each other, or the cyclic molecules to the biocompatible groups in each polyrotaxane molecule.
Owner:JAPAN TISSUE ENG +1
Lubricating strip for shaver
The invention relates to a lubricating strip for a shaver. The lubricating strip is at least composed of an elastomer and polyrotaxane. The polyrotaxane is prepared with, by weight, 100 parts of a linear polymer, 200-500 parts of cyclic molecule and 1-15 parts of capped macromolecule. The cyclic molecule is cyclodextrin. The linear polymer is one or more selected from PEG, PPG, PCL, PVA, PMMA, PA and PB. The capped macromolecule is capped on the two ends of the linear polymer. A mass ratio of the elastomer to polyrotaxane is 1:0.1-1. The lubricating strip also comprises a moisturizing agent which is one or more selected from olive oil, jojoba oil and glycerin. According to the invention, the elastomer and polyrotaxane are mixed; the mixture is heated and is subjected to a melting reaction under a temperature of 100-250 DEG C; the temperature is reduced to 90-110 DEG C, and the moisturizing agent is added; the mixture is mixed and stirred, and is subjected to granulation and shaping, such that the lubricating strip is obtained. The preparation method is simple. The lubricating strip has the advantage of good friction lubricating performance. The lubricating strip can be used multiple times, and is suitable for industrialized production.
Owner:上海天封科技有限公司
Alkali Metal-Sulfur Secondary Battery Containing a Protected Sulfur Cathode Material and Manufacturing Method
ActiveUS20190051902A1Sufficient structural integritySolid electrolytesCell electrodesParticulatesHigh energy
Provided is a rechargeable alkali metal-sulfur cell comprising an anode active material layer, an electrolyte, and a cathode active material layer containing multiple particulates of a sulfur-containing material and wherein at least one of the particulates is composed of one or a plurality of sulfur-containing material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer (containing a polyrotaxane network having a rotaxane structure or a polyrotaxane structure at a crosslink point of the polyrotaxane network) having a recoverable tensile strain from 2% to 1,500%, a lithium ion conductivity no less than 10−6 S / cm at room temperature, and a thickness from 0.5 nm to 10 μm. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, and long cycle life.
Owner:GLOBAL GRAPHENE GRP INC
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