100 results about "Reactive polymer" patented technology

In some aspects, the present disclosure pertains to systems for forming hydrogels that comprise (a) a radiopaque polyamino compound and (b) a reactive polymer comprising a plurality of hydrophilic polymer segments and a plurality of reactive moieties, wherein the reactive moieties are reactive with amino groups of the radiopaque polyamino compound, and wherein the radiopaque polyamino compound is produced by a method that comprises: (i) converting hydroxyl groups of a polyhydroxylated radiopaque compound to amino groups, (ii) converting vicinal diol groups (—CHOHCH2OH groups) of a polyhydroxylated radiopaque compound into hydroxyaminoethyl groups (—CHOHCH2NH2 groups), or (iii) converting vicinal diol groups of a polyhydroxylated radiopaque compound into aminomethyl groups (—CH2NH2 groups). In other aspects, the present disclosure pertains to hydrogels formed from such systems and to methods of treatment using such systems.

The present disclosure pertains to systems for forming hydrogel compositions that comprise a reactive polymer comprising a plurality of hydrophilic polymer segments and a plurality of first reactive moieties and gold nanoparticles, wherein the system is configured to deliver the reactive polymer and the gold nanoparticles under conditions such that covalent crosslinks are formed between the reactive polymer and the gold nanoparticles. The present disclosure also pertains to methods of treatment that comprise administering to a subject a mixture that comprises a reactive polymer comprising a plurality of hydrophilic polymer segments and a plurality of first reactive moieties and gold nanoparticles, under conditions such that the reactive polymer and the gold nanoparticles crosslink after administration, and to radiopaque crosslinked hydrogel compositions that comprise a crosslinked reaction product of a reactive polymer comprising a plurality of hydrophilic polymer segments and a plurality of first reactive moieties and gold nanoparticles.

Method of making a polydiene rubber comprising(i) polymerizing at least one aliphatic conjugated diene monomer, preferably having from 4 to 25 carbon atoms, to produce polymers having reactive polymer chain ends,(ii) reacting at least some of the reactive polymer chain ends with a coupling agent comprising from 2 to 20 unsaturated siloxane units, preferably from 3 to 15 units, more preferably from 3 to 10 units.Also provided are polydiene rubbers obtained by the method, curable compositions comprising the polydiene rubber and composition comprising the cured polydiene rubber.

The present invention relates to a tissue adhesive polymer blend comprising a bioresorbable carrier polymer and a bioresorbable synthetic tissue reactive polymer, and a tissue adhesive device for sealing the dura mater comprising the tissue adhesive polymer blend.

A process for producing a hybrid polymer material based on a reactive polymer resin and one or more Si compounds from the group comprising silanes, siloxanes, silazanes and silicone resins, wherein an inorganic solid and one or more other solids selected from the group comprising thermoplastics, thermosets, elastomers, recycled plastics, aramid fibers, carbon fibers, natural fibers and plant solids are first combined with the reactive polymer resin and the one or more Si compounds as well as additives to form a raw material, the raw material is compacted and subsequently reacted and cured, wherein the one or more other solids are used in a proportion of 30 wt.% to 75 wt.% of the raw material.

The invention relates to the technical field of surfactants, and particularly discloses a high-stability reactive high-molecular surfactant and a preparation method thereof. The surfactant is prepared from the following raw materials in parts by mass: 50 to 60 parts of allyl polyoxyethylene ether, 20 to 30 parts of dodecyl acrylate, 5 to 10 parts of trifluoroethyl methacrylate, 50 to 60 parts of SO3 compound, 0.5 to 1 part of chain transfer agent, 0.1 to 0.3 part of initiator, 0.2 to 0.5 part of synergist and 15 to 20 parts of deionized water. According to the invention, the reaction type high-molecular surfactant with the amphiphilic block structure is formed, so that the water molecule penetration is reduced, the water resistance of the emulsion is obviously improved, the water molecule penetration is reduced, and the water resistance of the emulsion is obviously improved. Moreover, the viscosity of the emulsion is kept stable under high shear force, so that the mechanical stability of the emulsion can be improved.

A process for coating a substrate with a coating having a gloss value at an angle of 60° of at most 40 gloss units, comprising applying a layer of liquid, solvent-free, radiation-curable coating composition at a dry film thickness and curing by electron-beam radiation, the coating composition comprising a radiation-curable resin system, a first matting agent, and optionally a second matting agent in a weight ratio of first to second matting agent of at least 1.0 and a combined amount of first and second matting agents of 8-25 wt.%, based on the weight of the radiation-curable resin system, wherein the first matting agent consists of spherical particles of non-reactive polymer with an average particle size Dv50 of 1.15-1.90 times the dry film thickness, wherein the second matting agent consists of particles with an average particle size Dv50 smaller than the dry film thickness.

A method for producing a polydiene rubber, comprising (i) polymerizing at least one aliphatic conjugated diene monomer, preferably having 4 to 25 carbon atoms, to produce a polymer having reactive polymer chain ends, (ii) reacting at least a portion of the reactive polymer chain ends with a coupling agent comprising 2 to 20 unsaturated siloxane units, preferably 3 to 15 units, more preferably 3 to 10 units, and (iii) using at least one functionalizing agent to introduce at least one functional group into the polymer, the functional group preferably having at least one heteroatom selected from Si, S, N, O, or combinations thereof in addition to C and H atoms, where (iii) is performed before, after, or during step (ii). Also provided are polydiene rubbers obtained by this method, curable compositions comprising the polydiene rubber, and compositions comprising the cured polydiene rubber.

The present disclosure provides a composition in which a radical reaction-imparting substance and a polymer micelle that encapsulates a hydrophobic substance are uniformly mixed.

A thermally conductive curable composition includes a first part and a second part, wherein the first part comprises a catalyst, a ceramic filler mixture, a low volatile organic liquid, and water, and the second part comprises a silyl modified reactive polymer, a low volatile organic liquid, and the ceramic filler mixture, and the low volatile organic liquid is present in the composition in an amount greater than about 50 wt. % based on the total weight of the silyl modified reactive polymer.

An optical element manufacturing apparatus is disclosed. The optical element manufacturing apparatus may comprise: a light source for generating light; a light modulation device which is provided with the light from the light source, and polarizes and diffracts the light to modulate the light so as to make a spatial change in the intensity of the light; a photoreactive polymer composition which is irradiated with the light modulated by the light modulation device; and a substrate which supports the photoreactive polymer composition.

Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

In some aspects, the present disclosure pertains to systems for forming hydrogels that comprise (a) a radiopaque polyamino compound and (b) a reactive polymer comprising a plurality of hydrophilic polymer segments and a plurality of reactive moieties, wherein the reactive moieties are reactive with amino groups of the radiopaque polyamino compound, and wherein the radiopaque polyamino compound is produced by a method that comprises: (i) converting hydroxyl groups of a polyhydroxylated radiopaque compound to amino groups, (ii) converting vicinal diol groups (-CHOHCH2OH groups) of a polyhydroxylated radiopaque compound into hydroxyaminoethyl groups (-CHOHCH2NH2 groups), or (iii) converting vicinal diol groups of a polyhydroxylated radiopaque compound into aminomethyl groups (-CH2NH2 groups). In other aspects, the present disclosure pertains to hydrogels formed from such systems and to methods of treatment using such systems.

The present application relates to the field of biochip technology, and specifically to a highly active polymer, a biochip, and a preparation method and application thereof. The preparation method of the highly active polymer comprises: preparing pentafluorophenol acrylate with acrylic acid and pentafluorophenol; polymerizing pentafluorophenol acrylate under the action of an initiator to obtain polypentafluorophenol acrylate; subjecting polypentafluorophenol acrylate to an amidation reaction with compound A and compound B to obtain a highly active polymer; wherein compound A contains an azide group and an amino functional group, and compound B contains at least one of an amino group, a carboxyl group, an epoxy group or a cyano functional group. The present application prepares polypentafluorophenol acrylate by homopolymerizing pentafluorophenol acrylate, using polypentafluorophenol acrylate as a polymer platform, and introducing the functional group into the polymer structure through an amidation reaction with organic matter containing different functional groups. The synthesis process is simple and the preparation cost is low.

In some aspects, the present disclosure provides crosslinked reaction products of (a) a boronated multifunctional compound comprising a plurality of nucleophilic groups and (b) a reactive polymer comprising a plurality of electrophilic groups that react with the plurality of nucleophilic groups to form covalent linkages. In some aspects, the present disclosure pertains to a system for forming such crosslinked reaction products. In some aspects, the present disclosure pertains to methods of treatment comprising (a) applying or injecting such crosslinked reaction products or precursors thereof onto or into target tissue of a subject and (b) delivering neutron beam radiation to the target tissue, the crosslinked reaction product, or both.

A photocurable composition can comprise a polymerizable material, at least one non-reactive polymer, and a photoinitiator, wherein the non-reactive polymer can have a carbon content of at least 80% based on the total weight of the non-reactive polymer; a molecular weight of the at least one non-reactive polymer can be at least 750 g / mol and not greater than 20,000 g / mol; an amount of the non-reactive polymer may be at least 10 wt % and not greater than 30 wt %; and a viscosity of the photocurable composition may be not greater than 110 mPa·s. The photocurable composition may have a low linear shrinkage after curing, a high carbon content and high etch resistance and being suitable for AIP or NIL processing.

In some aspects, the present disclosure pertains to systems for forming hydrogels that comprise: (a) a reactive multi-functional compound comprising (i) a residue of a polyol that comprises two or more hydroxyl groups and (ii) a plurality of activated ester groups, each of which is linked to the polyol residue through a residue of a cyclic anhydride and (b) a reactive polymer comprising a plurality of nucleophilic groups that are reactive with the plurality of activated ester groups of the reactive multi-functional compound. In other aspects, the present disclosure provides methods of treatment comprising administering to a subject a mixture of the reactive multi-functional compound and the multi-arm polymer to a patient. In other aspects, the present disclosure provides crosslinked hydrogels that are formed from the reactive multi-functional compound and the multi-arm polymer.

A photocurable composition can comprise a polymerizable material, and a photoinitiator, wherein the polymerizable material can comprise at least one polymerizable monomer and at least one reactive polymer. The reactive polymer can have a carbon content of at least 75% based on the total weight of the reactive polymer; a molecular weight of the at least one reactive polymer can be at least 400 g / mol and not greater than 50,000 g / mol; an amount of the reactive polymer may be at least 5 wt %; and a viscosity of the photocurable composition may be not greater than 100 mPa s. The photocurable composition may have a low linear shrinkage after curing, a high carbon content and high etch resistance and being suitable for AIP or NIL processing.

The invention relates to the technical field of alkaline electrolytic water hydrogen production diaphragms, in particular to a modified polyphenylene sulfide fiber, a fiber fabric thereof, a preparation method and application. According to the modified polyphenylene sulfide fiber, hydrophilic inorganic nanoparticles and an amorphous reactive polymer containing an oxazolinyl group are adopted to modify linear polyphenylene sulfide. The polyphenylene sulfide fabric woven by the modified polyphenylene sulfide fiber has good hydrophilicity, and the diaphragm for hydrogen production by electrolysis of water has good conductivity and gas isolation effect.

In some aspects, the present disclosure pertains to systems that comprise (a) a reactive polymer comprising a plurality of first hydrophilic polymer segments and a plurality of first reactive moieties, (b) a reactive multifunctional compound comprising a plurality of second reactive moieties, and (c) gold nanoparticles that are functionalized with a plurality of second hydrophilic polymer segments. In other aspects, the present disclosure pertains to crosslinked reaction products formed from such systems. In further aspects, the present disclosure pertains to methods of treatment using systems and such crosslinked reaction products.

The photocurable composition may comprise a polymerizable material, at least one non-reactive polymer, and a photoinitiator, the non-reactive polymer may have a carbon content of at least 80% based on the total weight of the non-reactive polymer, the molecular weight of the at least one non-reactive polymer may be at least 750 g / mol and not more than 20,000 g / mol, the amount of the non-reactive polymer may be at least 10 wt% and not more than 30 wt%, and the viscosity of the photocurable composition may be not more than 110 mPa·s. The photocurable composition has low linear shrinkage, high carbon content, and high etch resistance after curing, making it suitable for IAP or NIL processes.

The application provides a composition for 3D inkjet printing support structure and a preparation method and application thereof. The first aspect of the application provides a composition for 3D inkjet printing support structure, which comprises water-soluble monofunctional photocuring monomer, non-reactive polymer, photoinitiator and aqueous solvent; the weight of the water-soluble monofunctional photocuring monomer is 30-50% of the total weight of the composition; the weight of the non-reactive polymer is 30-50% of the total weight of the composition; and the non-reactive polymer has the structure shown in formula 1. The composition provided by the application is helpful to improve the support strength and water solubility of the support structure.

Methods and compositions for treating traumatic brain injury. The methods and compositions utilize a multi-functional oxygen reactive polymer (ORP) that includes repeating units that include a reactive oxygen species (ROS) scavenging group and a polyalkylene oxide group. For theranostic applications, the oxygen reactive polymer further includes a diagnostic group.

The present invention relates to silane-modified polypropylene copolymers having a silicon content between 1% and 5% by weight, a melting enthalpy between 20 J / g and 35 J / g, and a melt viscosity at 170° C. between 500 mPas and 4500 mPas. The present invention also relates to processing-optimized reactive hot melt adhesive formulations containing these silane-modified polypropylene copolymers, and the use of these hot melt adhesive formulations for bonding various substrates. The present invention also relates to a process for preparing these silane-modified polypropylene copolymers.

In some aspects, the present disclosure provides reactive polymers that comprise one or more hydrophilic polymer segments having a plurality of hydrophilic polymer segment ends and a plurality of reactive moieties covalently linked to at least a portion of the hydrophilic polymer segment ends. The reactive moieties are 3,4-substituted-2,5-pyrrolidinedione moieties in which the 3-carbon and the 4-carbon form part of at least one ring in addition to the 2,5-pyrrolidinedione ring, and the 2,5-pyrrolidinedione ring nitrogen atom of each of the 3,4-substituted-2,5-pyrrolidinedione moieties is linked to one of the hydrophilic polymer segment ends. In other aspects, the present disclosure provides systems for forming hydrogel compositions and methods of treatment that employ such reactive polymers and methods of synthesizing such reactive polymers.

An ABA triblock polymer, in which an A block is a random polymer including a constituent unit derived from a reactive group-containing polymerizable monomer and a constituent unit derived from a reactive group-free polymerizable monomer, a B block contains a polyalkylene oxide chain or a divalent organopolysiloxane residue in a main chain, the constituent unit derived from a reactive group-free polymerizable monomer contains a constituent unit derived from a hydrophobic group-containing polymerizable monomer in a case in which the B block contains a polyalkylene oxide chain in a main chain, and the constituent unit derived from a reactive group-free polymerizable monomer contains a constituent unit derived from a hydrophilic group-containing polymerizable monomer in a case in which the B block contains a divalent organopolysiloxane residue in a main chain, as well as applications thereof. The details of the reactive group, the hydrophobic group, and hydrophilic group are omitted.

In some aspects, the present disclosure provides a system for forming a hydrogel composition that comprises (a) a first reservoir containing a reactive polymer that comprises a plurality of first reactive groups; (b) a second reservoir containing a multifunctional compound that comprises a plurality of second reactive groups, the second reactive groups reacting with the first reactive groups to form covalent bonds at a pH greater than 7.4; and (c) a third reservoir containing a biologically innocuous buffer having a pH in a range of 8 to 12. Other aspects of the present disclosure pertain methods of treatment using such systems.

Title: Hair coloring process comprising the application of a composition comprising a (poly)carbodiimide compound, a pigment functionalized by a phosphate additive, and a reactive polymer. The present invention relates to a hair coloring process comprising the application to the hair of at least one composition C comprising: (1) at least one (poly)carbodiimide compound; (2) at least one pigment functionalized by at least one particular additive of formula (I); and (3) at least one polymer comprising at least one reactive group selected from carboxylic acids.

In some aspects, the present disclosure relates to a radiopaque reactive polymer, the present invention relates to a hydrophilic polymer comprising one or more hydrophilic polymer segments having a plurality of hydrophilic polymer segment ends, a plurality of iodinated cyclic anhydride residues covalently linked to the plurality of hydrophilic polymer segment ends, and a plurality of reactive moieties covalently linked to the iodinated cyclic anhydride residues. In some aspects, the present disclosure relates to a system for forming a hydrogel composition comprising (a) a nucleophilic compound and (b) such a radiopaque reactive polymer. In some aspects, the disclosure relates to a method of treatment comprising administering to a subject a mixture comprising (a) a nucleophilic compound and (b) such a radiopaque reactive polymer under conditions such that the nucleophilic compound and the radiopaque reactive polymer cross-link after administration.

A process for producing a hybrid polymer material based on a reactive polymer resin and one or more Si compounds from the group comprising silanes, siloxanes, silazanes and silicone resins, wherein a mixture of various fibers selected from plant or animal fibers or mixtures thereof, in combination with the reactive polymer resin and the one or more Si compounds and additives, forms a raw material, wherein the raw material further contains at least one alkoxide of zirconium, aluminum or titanium, and wherein the raw material is compacted and subsequently reacted and cured, wherein the fibers are contained in the raw material in a proportion of 0.1 wt.% to 40 wt.% and the at least one alkoxide of zirconium, aluminum or titanium in a range of 6 wt.% to 30 wt.%.