Vinyl-Lactam-Based Hydrogel Coatings

The invention relates to a material formed by a polymer substrate and a hydrogel based on vinyl-lactams and ionic methacrylates. The invention also relates to a method for producing this material and to the use thereof for cell culture and cell monolayer engineering, for preparing 3D scaffolds and manufacturing thermosensitive mechanical actuators.

AQUEOUS POLYOLEFIN DISPERSION

The invention relates to an aqueous polyolefin dispersion comprising from 50 to 100 wt. % of a aqueous dispersion A comprising the following ingredients: from 30 to 90 wt. % of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid, from 10 to 70 wt. % of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and from 0-15 wt. % of additive from 0 to 50 wt. % of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A wherein the wt. % of A and B is based on the solid content of the whole aqueous polyolefin dispersion and the wt % of the ingredients of dispersion A is based on the solid content of dispersion A, the sum of the wt. % of ingredients i to iii of dispersion A is 100%. 1. An aqueous polyolefin dispersion comprising a. from 30 to 90 wt. % of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid,', 'b. from 10 to 70 wt. % of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and', 'c. from 0-15 wt. % of additive,, 'a. from 50 to 100 wt. % of an aqueous dispersion A comprising the following ingredientsb. from 0 to 50 wt. % of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A, the wt. % of aqueous dispersion A and compound B is based on the solid content of the whole aqueous polyolefin dispersion,', 'the wt % of the ingredients of dispersion A is based on the solid content of dispersion A,', 'the sum of the wt. % of ingredients a.-c. of dispersion A is 100%, and', 'A2 comprises one or more of copolymers of ethylene and vinyl acetate (EVA), copolymers of ethylene and vinyl acetate (EVA) modified with maleic ...

POROUS MEMBRANES FOR HIGH PRESSURE FILTRATION

The present invention relates to a porous membrane suitable for use in high pressure filtration method. 115-. (canceled)16. A method for purifying a fluid containing at least one contaminant , said method comprising the steps of(I) providing a fluid containing at least one contaminant;(II) providing a membrane [membrane (PSP)] comprising at least one porous layer [layer (PSP)] comprising at least one aromatic sulfone polymer [polymer (SP)] and at least one polyphenylene polymer [polymer (PP)];(III) contacting said fluid containing at least one contaminant and said membrane (PSP) by applying a pressure higher than 1 bar to said fluid; and(IV) recovering the fluid free from said at least one contaminant.171. The method according to claim , wherein said membrane (PSP) comprises said layer (PSP) as the only layer or said membrane (PSP) is a multi-layered membrane.181. The method according to claim , wherein said polymer (SP) is a polymer comprising at least one group of formula —Ar—SO—Ar′— [recurring units (R)] , wherein Ar and Ar′ , equal to or different from each other , are aromatic groups , and wherein more than 50% by moles of the recurring units of said polymer (SP) are connected by ether linkages in the main chain.20. The method according to claim 18 , wherein said polymer (SP) is selected from poly(phenylene sulfone) polymers [polymers (PPSU)] claim 18 , poly(sulfone) polymers [polymers (PSU)] and poly(ether sulfone) polymers [polymers (PESU)].261. The method according to claim claim 18 , wherein said method is for purifying non-drinkable water claim 18 , said fluid is saline water or brackish water claim 18 , said contaminant is the salts content dissolved into said fluid claim 18 , and said membrane (PSP) is a multi-layered membrane comprising (I) a substrate layer claim 18 , (II) an outer layer consisting of aromatic polyamides and (III) the layer (PSP) claim 18 , said layer (PSP) being interposed between said substrate layer and said outer layer.271. The ...

HYDROPHILIZING AGENT, COMPOSITION CONTAINING HYDROPHILIZING AGENT, AND POROUS POLYMER FILM

The invention provides a hydrophilizing agent which is to be added to a polymer having a large contact angle to produce a porous polymer film that has a small contact angle and that can maintain this small contact angle even after 168-hour contact with an aqueous sodium hypochlorite solution. The hydrophilizing agent contains a fluoropolymer having a contact angle of 50° or smaller and a weight reduction rate of 7% or lower. 1. A hydrophilizing agent comprising a fluoropolymer having a contact angle of 50° or smaller and a weight reduction rate of 7% or lower.2. The hydrophilizing agent according to claim 1 ,wherein the fluoropolymer has a softening point of 70° C. to 200° C.3. The hydrophilizing agent according to claim 1 ,wherein the fluoropolymer is a copolymer of a fluoromonomer and an amide bond-containing polymerizable vinyl compound.4. The hydrophilizing agent according to claim 1 ,wherein the fluoropolymer has a fluorine content of 5 mass % or more.5. The hydrophilizing agent according to claim 1 , which is a hydrophilizing agent for a polymer other than the hydrophilizing agent.6. The hydrophilizing agent according to claim 1 , which is a hydrophilizing agent for a porous polymer film.7. A composition comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hydrophilizing agent according to ; and'}a polymer other than the hydrophilizing agent.8. The composition according to claim 7 ,wherein the polymer is polyvinylidene fluoride or a copolymer containing a vinylidene fluoride unit.9. A porous polymer film comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hydrophilizing agent according to ; and'}a polymer other than the hydrophilizing agent.10. The porous polymer film according to claim 9 ,wherein the polymer is polyvinylidene fluoride or a copolymer containing a vinylidene fluoride unit.11. The porous polymer film according to claim 9 , which has a contact angle of 55° or smaller.12. A hydrophilizing agent comprising a copolymer of ...

RESIN COMPOSITION

A resin composition for insulating coating material, comprises: a polyimide resin and/or a precursor thereof; and a polymer having a heterocyclic ring at a side chain, wherein the content of the polymer having a heterocyclic ring at a side chain is 0.1 to 7 parts by weight relative to 100 parts by weight of the polyimide resin and/or the precursor thereof. By adding a prescribed amount of the polymer having a heterocyclic ring at a side chain, there can be obtained a resin composition for insulating coating material still maintaining heat resistance and together having excellent bending resistance. 1. A resin composition for insulating coating material , comprising: a polyimide resin and/or a precursor thereof; and a polymer having a heterocyclic ring at a side chain , wherein the content of the polymer having a heterocyclic ring at a side chain is 0.1 to 7 parts by weight relative to 100 parts by weight of the polyimide resin and/or the precursor thereof.2. The resin composition for insulating coating material according to claim 1 , wherein the polymer having a heterocyclic ring at a side chain is one or two or more selected from the group consisting of polyvinylpyrrolidone claim 1 , polyvinylpyridine claim 1 , and copolymers containing at least one of vinylpyrrolidone and vinylpyridine as a copolymerization component.3. The resin composition for insulating coating material according to claim 1 , wherein the glass transition temperature (Tg) of the polyimide resin and/or the precursor thereof is 250 to 400° C.7. The resin composition for insulating coating material according to claim 6 , wherein the polyimide resin and/or the precursor thereof contains the repeating unit containing a structure represented by the following formula (5) and the repeating unit containing a —C(O)NH— structure.8. The resin composition for insulating coating material according to claim 7 , wherein the —C(O)NH— structure is a structure derived from 4 claim 7 ,4′-diaminobenzanilide.9. The ...

Manufacturing method of porous polymer film using vanadium oxide nanowire, and porous polymer film prepared therefrom

This patent is provided a method for producing a porous polymer film using vanadium oxide nanowires, and a porous polymer film obtained from the method. The method allows control of a uniform pore size and density through a simple process including the steps of: adding an ion exchanger to deionized water to perform acidification and adding a vanadate compound thereto to grow vanadium oxide nanowires by a sol-gel process; mixing the resultant solution of grown nanowires with a polymer solution to provide a mixed solution of nanowires; pouring the mixed solution of nanowires to a mold, followed by drying and curing, to form a film; and etching the resultant film with an etching solution to remove the vanadium oxide nanowires.

RESIN COMPOSITION, MEMBRANE-FORMING STOCK SOLUTION, POROUS MEMBRANE, AND HOLLOW FIBER MEMBRANE, WATER TREATMENT DEVICE, ELECTROLYTE SUPPORT, AND SEPARATOR USING POROUS MEMBRANE

The present invention pertains to a resin composition which includes component: a membrane-forming polymer, component: a polymer obtained by polymerizing a monomer composition which includes a (meth)acrylic ester macromonomer represented by general formula and another monomer, and component: a polymer including a vinylpyrrolidone unit, a membrane-forming stock solution which includes the resin composition, a porous membrane obtained by forming with the membrane-forming stock solution, and a hollow fiber membrane, a water treatment device, an electrolyte support, and a separator which use the porous membrane. According to the present invention, it is possible to provide a porous membrane which has pores with high uniformity wherein the formation of large pores with a diameter of 1 μm or higher is suppressed and which has excellent fractionation performance and high water permeability, and a hollow fiber membrane, water treatment device, electrolyte support, and separator which use the porous membrane. 2. The resin composition according to claim 1 , wherein the component (A) is a polymer containing a fluorine atom or a chlorine atom in the molecule.3. The resin composition according to claim 2 , wherein the polymer containing a fluorine atom in the molecule is at least one polymer selected from the group consisting of polyvinylidene fluoride claim 2 , a polyvinylidene fluoride-hexafluoropropylene copolymer claim 2 , an ethylene-chlorotrifluoroethylene copolymer claim 2 , and polytetrafluoroethylene.4. The resin composition according to claim 2 , wherein the polymer containing a chlorine atom in the molecule is at least one polymer selected from the group consisting of polyvinyl chloride and chlorinated polyvinyl chloride.5. The resin composition according to claim 1 , wherein the component (A) is at least one polymer selected from the group consisting of a polyolefin claim 1 , a polysulfone claim 1 , polyether sulfone claim 1 , cellulose claim 1 , and any derivative ...

SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY

Methods are provided for surface-modifying a rubber vulcanizate or a thermoplastic elastomer. The methods allow these rubber vulcanizate or thermoplastic elastomer objects to have a lubricating surface layer chemically fixed thereon, instead of having a resin coating which has drawbacks such as a reduction in lubricity due to e.g. separation or peeling of the coating during movement within a vessel or tract. The present invention relates to a method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer, the method including: step 1 of forming polymerization initiation points on a surface of the object; and step 2 of radically polymerizing a monomer starting from the polymerization initiation points by irradiation with ultraviolet light having a wavelength of 300 to 400 nm in the presence of an alkali metal salt to grow polymer chains on the surface of the object. 1. A method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer , the method comprising:step 1 of forming polymerization initiation points on a surface of the object; andstep 2 of radically polymerizing a monomer starting from the polymerization initiation points by irradiation with ultraviolet light having a wavelength of 300 to 400 nm in the presence of an alkali metal salt to grow polymer chains on the surface of the object.2. A method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer , the method comprisingstep I of radically polymerizing a monomer by irradiation with ultraviolet light having a wavelength of 300 to 400 nm in the presence of a photopolymerization initiator and an alkali metal salt to grow polymer chains on a surface of the object.3. The method according to claim 1 ,wherein the step 1 comprises adsorbing a photopolymerization initiator onto a surface of the object, optionally followed by irradiation with ultraviolet light having a wavelength of 300 to 400 nm, to form ...

POLYURETHANE FOAM AND POLYOL COMPOSITION FOR PRODUCTION OF POLYURETHANE

The present invention provides a polyurethane foam containing an amine polymer. In addition, the present invention provides a polyol composition for production of a polyurethane containing a polyol and an amine polymer. The amine polymer is preferably at least one selected from the group consisting of a polyvinylamine, a polyvinylalkylamine, a polyalkyleneimine, a polyaniline and salts thereof. 1. A polyurethane foam containing an amine polymer having an amino group in its repeating unit.2. The polyurethane foam according to claim 1 ,wherein the amine polymer is at least one selected from the group consisting of a polyvinylamine, a polyvinylalkylamine, a polyalkyleneimine, a polyaniline and salts thereof.3. The polyurethane foam according to claim 2 ,wherein the amine polymer is a polyethyleneimine.4. The polyurethane foam according to claim 1 ,wherein the polyurethane foam is a seat pad.5. A polyol composition for production of a polyurethane containing a polyol and an amine polymer having an amino group in its repeating unit.6. The polyol composition for production of a polyurethane according to claim 5 ,wherein 0.01 to 5.0 parts by mass of the amine polymer is contained with respect to 100 parts by mass of the polyol.7. The polyol composition for production of a polyurethane according to claim 6 ,wherein the amine polymer is at least one selected from the group consisting of a polyvinylamine, a polyvinylalkylamine, a polyalkyleneimine, a polyaniline and salts thereof.8. The polyol composition for production of a polyurethane according to claim 7 ,wherein the amine polymer is a polyethyleneimine.9. The polyurethane foam according to claim 2 ,wherein the polyurethane foam is a seat pad.10. The polyurethane foam according to claim 3 ,wherein the polyurethane foam is a seat pad. The present elates to a polyurethane foam and a polyol composition for production of a polyurethane. Priority is claimed on Japanese Patent Application No. 2016-62312, filed Mar. 25, 2016, ...

MODIFIED DIENE-CONTAINING (CO)POLYMER, METHOD FOR PREPARING THEREOF AND USE AS A FLAME RETARDANT

Disclosed herein are modified diene-containing (co)polymers, in particular, modified styrene-butadiene copolymer, which can be used as flame retardants for expandable polystyrene polymer compositions. In particular, disclosed is a modified diene-containing (co)polymer, a method for preparing it, and use as a flame retardant for expandable polystyrene. The modified diene-containing (co)polymer claimed in the invention is characterized by high thermostability, namely, a 5% weight loss temperature of at least 180° C., a molecular weight of at least 1500 g/mol and a halogen content of at least 35 wt. %; the content of tertiary and/or allyl halogenides is in the range from 0 to less than 1.5 wt. %, and also does not affect the polymerization process and the formation of polystyrene granules either, and allows to obtain polystyrene granules with a yellowness index of 2 to 6 units, comparable to the yellowness index of polystyrene granules containing HBCD (from 0 to 3 units). 1. A modified diene-containing (co)polymer , wherein a 5% weight loss temperature is at least 180° C. , having an average molecular weight of at least 1500 g/mol and a halogen content of at least 35 wt. % , characterized in that it comprises in its structure in addition to halogen atoms at least one epoxy group , at least one hydroxyl group , and from 0 to less than 1.5 wt. % of tertiary and/or allyl halogenides.2. The modified diene-containing (co)polymer according to claim 1 , characterized in that the indicated (co)polymer has a 5% weight loss temperature of at least 220° C.3. The modified diene-containing (co)polymer according to claim 1 , characterized in that the (co)polymer has a weight-average molecular weight from 2000 to 280000 g/mol.4. The modified diene-containing (co)polymer according to claim 1 , characterized in that the content of halogen atoms is at least 60 wt. %.5. The modified diene-containing (co)polymer according to claim 1 , characterized in that the content of epoxy groups is ...

HIGH-PERFORMANCE ANION EXCHANGE MEMBRANES AND METHODS OF MAKING SAME

Anion exchange membranes may include a polymeric microporous substrate and a cross-linked anion exchange polymeric layer on the substrate. Anion exchange membranes may have a resistivity of less than about 1.5 Ohm-cmand an apparent permselectivity of at least about 95%. The anion exchange membranes may be produced by a unique, two step process. 1. A method of making an anion exchange membrane , comprising:mixing a tertiary amine monomer with a quaternization agent to produce a functional monomer;mixing a cross-linking agent and a solvent with the functional monomer to form a monomeric solution; andcasting the monomeric solution on a polymeric microporous substrate to form the anion exchange membrane.2. The method of claim 1 , wherein the tertiary amine monomer is selected from the group consisting of 1-vinylimidazole claim 1 , 2-methyl-1-vinylimidazole claim 1 , 9-vinylcarbazole claim 1 , N-ethyl-2-vinylcarbazole claim 1 , 2-vinylpyridine claim 1 , 3-vinylpyridine claim 1 , 4-vinylpyridine claim 1 , and mixtures thereof.3. The method of claim 2 , wherein the quaternization agent is selected from the group consisting of benzyl chloride claim 2 , benzyl bromide claim 2 , benzyl iodide claim 2 , p-dichlorobenzene claim 2 , m-dichlorobenzene claim 2 , 1 claim 2 ,4-dichloro-2-nitrobenzene claim 2 , 3-(Benzyloxy)benzyl chloride claim 2 , 4-(Benzyloxy)benzyl chloride 2-(Trifluoromethyl)- benzyl chloride claim 2 , 3-(Trifluoromethyl)benzyl chloride claim 2 , 4-(Trifluoromethyl)benzyl chloride claim 2 , 1-chlorohexane claim 2 , 1-chloropentane claim 2 , 1-chlorobutane claim 2 , 1-chloropropane claim 2 , 1 claim 2 ,6 dichlorohexane claim 2 , 1 claim 2 ,5-dichloropentane claim 2 , 1 claim 2 ,4-dichlorobutane claim 2 , 1 claim 2 ,3-dichloropropane claim 2 , 1-bromohexane claim 2 , 1-bromopentane claim 2 , 1-bromobutane claim 2 , 1-bromopropane claim 2 , 1 claim 2 ,6-dibromohexane claim 2 , 1 claim 2 ,5-dibromopentane claim 2 , 1 claim 2 ,4-dibromobutane claim 2 , 1 claim 2 ,3- ...

POLYESTER FILM WITH CITRIC ACID-MODIFIED POLYVINYL AMINE

A composite barrier film has a base layer of polyester with a barrier layer modified polyvinyl amine (mPVA). The mPVA is polyvinyl alcohol/polyvinyl amine copolymer crosslinked with citric acid and an optional additional crosslinking agent such as epichlorohydrin. The barrier layer can be applied by deposition of a reactive aqueous solution onto the base layer, heating and drying to remove water and crosslink the reactants. Excellent barrier properties of the film are obtained by applying and crosslinking the barrier layer during the transverse stretching steps of a biaxial oriented polymer film continuous fabrication process. Superior barrier properties are achieved with transverse stretching by a factor of about 3-4. 1. A composite barrier film comprising (A) a base layer defining a base layer thickness , the base layer comprising a core layer comprising a polymer of polyester , and (B) a barrier layer coextensively adjacent in direct contact with one side of the base layer , the barrier layer defining a barrier layer thickness and comprising modified polyvinyl amine ,in which the modified polyvinyl amine is a vinylamine polymer crosslinked by citric acid,in which the composite barrier film is optically clear, andin which the composite barrier film has moisture vapor transmission rate and oxygen transmission rate at most equal to that of a composite control film consisting essentially of a substrate identical to the base layer, and a layer of polyvinyl alcohol of thickness equal to the barrier layer thickness and disposed coextensively on the substrate.2. The composite barrier film of in which the vinylamine polymer is polyvinyl alcohol/polyvinyl amine copolymer.3. The composite barrier film of in which the base layer comprises an adhesive layer coextensive with the core layer and being on the one side of the base layer adjacent to the barrier layer.4. The composite barrier film of in which the adhesive layer comprises an amorphous copolyester claim 3 , a primer ...

METHOD OF PRODUCING POLYMER MICROPARTICLES

A method of producing polymer particles includes, in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing the polymer A as a major component and a solution phase containing the polymer B as a major component, continuously adding an emulsion including the polymer A, the polymer B and the organic solvent, and a poor solvent for the polymer A to a vessel continuously to allow the polymer A to precipitate; and separating polymer A particles from the vessel continuously. 19.-. (canceled)10. A method of producing polymer particles comprising , in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing said polymer A as a major component and a solution phase containing said polymer B as a major component , continuously adding an emulsion comprising said polymer A , said polymer B and said organic solvent , and a poor solvent for said polymer A to a vessel continuously to allow said polymer A to precipitate; and separating polymer A particles from said vessel continuously.11. The method according to claim 10 , wherein said emulsion formed by continuously supplying said polymer A claim 10 , said polymer B claim 10 , and said organic solvent to a mixing apparatus is added to said vessel.12. The method according to claim 10 , wherein said emulsion formed by continuously supplying each of a liquid obtained by dissolving said polymer A in said organic solvent and a liquid obtained by dissolving said polymer B in said organic solvent to said mixing apparatus is added to said vessel.13. The method according to claim 10 , wherein said organic solvents in each of said phases when said phase separation into two phases occurs are identical.14. The method according to claim 10 , wherein said poor solvent is continuously added from two or ...

Method for Treating a Microporous Membrane

A method for treating a surface of a microporous membrane includes: (1) contacting at least one surface of the membrane with a treatment composition including: (a) an acrylic polymer prepared from a mixture of vinyl monomers including: (i) a (meth)acrylic acid monomer and (ii) a silane-functional acrylic monomer; and (b) a base, where the acrylic polymer is in contact with the filler present in the matrix; and (2) subjecting the membrane of (1) to conditions sufficient to effect a condensation reaction between the filler and the acrylic polymer. A treated microporous membrane and an aqueous treatment composition are also disclosed. 1. A method for treating a surface of a microporous membrane , the membrane comprising a polyolefinic polymeric matrix; finely divided particulate , substantially water-insoluble inorganic filler distributed throughout the matrix; and a network of interconnecting pores communicating throughout the microporous membrane ,the method comprising: (a) an acrylic polymer prepared from a mixture of vinyl monomers comprising: (i) a (meth)acrylic acid monomer and (ii) a silane-functional acrylic monomer; and', '(b) a base,, '(1) contacting at least one surface of the membrane with a treatment composition comprisingwherein the acrylic polymer is in contact with the filler present in the matrix; and(2) subjecting the membrane of (1) to conditions sufficient to effect a condensation reaction between the filler and the acrylic polymer.2. The method of claim 1 , wherein the mixture of vinyl monomers further comprises (iii) N-vinylpyrrolidone.3. The method of claim 1 , wherein the silane-functional acrylic monomer comprises 10-80 weight % of the vinyl monomers.4. The method of claim 1 , wherein the (meth)acrylic acid monomer comprises 2-20 weight % of the vinyl monomers.5. The method of claim 2 , wherein the N-vinylpyrrolidone comprises 1-60 weight % of the vinyl monomers.6. The method of claim 1 , wherein the base comprises an amine.7. The method of ...

TRANSPARENT CONDUCTIVE FILM, AND TOUCH PANEL INCLUDING SAME

Provided is a transparent conductive film having a preferable optical property and an electric property, and in addition, a superior durability of folding. A transparent conductive film comprising: a transparent substrate, a transparent conductive layer having a binder resin and conductive fibers and formed on at least one of the main faces of the transparent substrate, and a protective layer formed on the transparent conductive layer, wherein the protective layer is a cured layer of a curable resin composite and has a thickness of more than 100 nm and 1 μm or less.

Process for synthesizing hybrid core-shell microparticles comprising a polymer core and a silicon dioxide shell with controlled structure and surface

Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.

SYSTEM AND METHOD FOR SYNTHESIS OF POSS-STARCH DERIVATIVES AS EFFECTIVE FILLERS FOR DEVELOPING HIGH PERFORMANCE COMPOSITES

According to an embodiment, natural polymers will be used to enhance the biodegradability of nanocomposites, increase potential use of sustainable polymer matrices, improve the interlaminar fracture toughness of graphite/epoxy composites and attain complete nanoparticle dispersion through covalent bonding of nanoparticles and natural polymers. The starch derivatives containing POSS (polyhedral silsesquioxane) were synthesized by reacting natural polymer with different POSS molecules in a solvent in presence of a catalyst. Interlaminar fracture toughness testing results from the epoxy based nanocomposites containing 3, 5, 7, and 10 wt % POSS modified natural polymer in the interlaminar area are presented. The biodegradability of the composites is expected to improve through the incorporation of the natural polymer derivatives. 1. A method of synthesizing a POSS grafted polymer , comprising:selecting a POSS molecule including at least one reactive functional group capable of reacting with an —OH functional group;selecting a polymer molecule including at least one —OH functional group;exposing said POSS to said polymer such that said at least one reactive functional group of said POSS reacts with said —OH functional group of said polymer so as to graft said POSS to said polymer.2. The method of wherein a volume of said POSS molecules are exposed to a volume of said polymer molecules.3. The method of wherein said volume of said PUSS molecules and said volume of said polymer molecules are dissolved in a solvent to form a mixture.4. The method of wherein said solvent is trimethyl sulfoxide.5. The method of wherein a catalyst is added to said mixture.6. The method of wherein said catalyst is aluminum triflate.7. The method of wherein said mixture is refluxed at approximately 80° C. claim 5 , cooled claim 5 , filtered claim 5 , dissolved in a dispersant and applied to a matrix/resin interface to form a composite.8. The method of wherein 3 parts by weight of said POSS are ...

Method for bonding plastics and method for releasing a bond in the plastic composite and a plastic composite

The invention relates to the field of chemistry and concerns a method suitable for example for use in the automotive industry or in aircraft construction. The object of the present invention is to provide a method by which a bonding of the regions of the plastics that are in direct contact is accomplished. The object is achieved by a method for bonding plastics in which materials which contain at least one electrically conductive material and only partially cover the plastics are applied to at least one of the plastics to be bonded, then the plastics are brought into contact with one another, at least in the region with the materials, and after that at least this region is exposed at least once to an alternating electromagnetic field.

Polysulfone-Urethane Copolymer, Membranes And Products Incorporating Same, And Methods For Making And Using Same

A polysulfone-urethane copolymer is disclosed, which can be used as a membrane polymer, e.g., a matrix polymer, a pore forming agent, or both, while enhancing a membrane's blood compatibility. Methods are disclosed for forming the copolymer and incorporating the copolymer in membranes (e.g., spun hollow fibers, flat membranes) and other products. 1. A polysulfone-urethane copolymer comprising formula (I) or formula (II):{'br': None, 'sub': a1', 'a2', 'a3, '-[D-E]-[D-G-D]-[E-D]-\u2003\u2003(I)'}{'br': None, 'sub': b1', 'b2', 'b3', 'b4, '[D-(E-D)-(G)-(D-E)]-\u2003\u2003(II)'}wherein G is a urethane block, D is a divalent residue of an aromatic dihydroxyl compound, E is an aromatic sulfone group, and wherein i) a1, a2 and a3 are independently from 1-100 which randomly or non-randomly repeat in formula (I), and ii) b1, b2, b3, and b4 are independently from 1-100 which randomly or non-randomly repeat in formula (II).2. The polysulfone-urethane copolymer of claim 1 , having formula (I):{'br': None, 'sub': a1', 'a2', 'a3, '-[D-E]-[D-G-D]-[E-D]-'}wherein a1 and a3 are independently from 10-100 and a2 is from 1-10 units which randomly or non-randomly repeat in formula (I).3. The polysulfone-urethane copolymer of claim 1 , having formula (II):{'br': None, 'sub': b1', 'b2', 'b3', 'b4, '[D-(E-D)-(G)-(D-E)]-'}wherein b1 and b3 are independently from 10-100 and b2 and b4 are independently from 1-10 units which randomly or non-randomly repeat in formula (II).4. The polysulfone-urethane copolymer of claim 1 , having formula (III):{'br': None, 'sub': g', 'y', 'i, 'J-D-[X]-[D-G-D]-[X]-D-J'}wherein J is an end group of the polymer, X is a polysulfone block comprised of aromatic dihydroxyl compound and dihalodiphenyl sulfone, wherein g and i are independently from 1-100 units.5. The polysulfone-urethane copolymer of claim 4 , wherein each J is a mono-reacted residue of a dihalodiphenyl sulfone or a polysulfone block containing an aromatic dihydroxyl compound and a dihalodiphenyl ...

Method for fabrication of porous fibrous microstructure with various 3-dimensional structures

The present invention relates to a method for fabricating a three-dimensional porous fibrous microstructure, various three-dimensional porous fibrous microstructures fabricated by the method, an apparatus for detecting a biological marker and a drug delivery system comprising the microstructure. The porous fibrous microstructure of the present invention has excellent interconnectivity between pores and micropores and captures and delivers target particles at high efficiency, and thus can be usefully applied to biomedical applications including the detection of a biomarker and drug delivery.

INCREASED STIFFNESS CENTER OPTIC IN SOFT CONTACT LENSES FOR ASTIGMATISM CORRECTION

A molded contact lens comprising a stiffer optic zone relative to the peripheral zone of the contact lens provides an optical element for correcting astigmatism without the need for or substantially minimizing the need for the correction of rotational misalignment. The higher elastic modulus optic zone vaults over the cornea thereby allowing a tear lens to form. The tear lens follows or assumes the shape of the back surface of the contact lens. The combination of the tear lens and the optical zone provide an optical element for correction of refractive error. 134-. (canceled)35. A method of making an ophthalmic device , the method comprising:dosing a first reactive mixture comprising at least one N-alkyl methacrylamide and at least one silicone-containing component, into a center portion of a contact lens front curve mold;dosing into the contact lens front curve mold on top of the first material, a second material having a second Young's modulus when cured of less than about 200 psi, and wherein the first material, when cured, has a first Young's modulus greater than about 1000, and wherein said first and second reactive mixtures are substantially immiscible during a period from dosing to curing;positioning a contact lens back curve mold on the second material; and curing said reactive mixtures.36. The method of further comprising the step of at least partially curing said first reactive mixture prior to dosing said second reactive mixture.37. The method of wherein said second reactive mixture is coated onto the front curve mold prior to dosing said first reactive mixture so that said first material is encapsulated in said second material.38. The method of wherein said first and second materials have expansion factors within about 10%.3940-. (canceled) The present invention relates to contact lenses having a higher stiffness in the central optic zone relative to the peripheral zone, and more particularly to soft contact lenses incorporating a higher modulus hydrogel ...

METHOD TO IMPROVE THE SURFACE MODIFICATION BY USING ALKYLBORANES

Process for the modification of a surface of a solid substrate comprising treatment of the surface with (i) a solution comprising an organoborane-amine complex and a polymer and subsequently with (ii) a polymerizable compound (herein referred to as “monomer”) and optionally a deblocking agent 1. A process for modifying surface of a solid substrate , the process comprising treating the surface with(i) a solution comprising an organoborane-amine complex and a polymer and, subsequently,(ii) a polymerizable compound and, optionally, a deblocking agent.2. The process of claim 1 , wherein the organoborane-amine complex has a structure of formula (I){'br': None, 'sub': 1', '2', '3', '4', '5', '6, 'RRRB—NRRR\u2003\u2003(1),'}{'sub': 1', '2', '3', '1', '2', '3, 'wherein R, Rand Rare each independently an alkyl group, a cycloalkyl group, an alkyl or cycloalkyl group substituted with a heteroatom, an alkylamino group, an aryl group, a heteroaryl group, an alkoxy group or an aryloxy group, with the proviso that at least one of R, Rand Ris an alkyl or aryl group, and'}{'sub': 4', '5', '6', '4', '5', '6, 'R, Rand Rare each independently hydrogen, an alkyl group, a cycloalkyl group, a substituted alkyl group, an alkoxy group, an alkylamino group, an aryl group or a heteroaryl group, with the proviso that not more than two of R, Rand Rare simultaneously hydrogen, or'}{'sub': 4', '5', '6, 'NRRRis a heterocyclic aliphatic or aromatic amine, optionally comprising at least one heteroatom selected from the group consisting of N, O, S and P.'}3. The process of claim 1 , wherein the organoborane-amine complex is a trialkylborane-amine complex.4. The process of claim 1 , wherein the polymer is a polyalkylenoxide claim 1 , a polyalkyleneglycol claim 1 , a polycaprolactone claim 1 , a polyvinyllactone claim 1 , a polyvinyllactame or a mixture thereof.5. The process of claim 1 , wherein the polymer is a polyethyleneglycol or a polyvinylpyrrollidone.6. The process of claim 1 , wherein the ...

MINERAL OIL BARRIER FILM WITH HIGH OXYGEN DIFFUSION PROPERTIES

A biaxially oriented polypropylene (BOPP) film with a novel coating layer which has an O2TR value in cc/m2/day in a range from 100 to 2000, and a MOSH value of 0.6 mg/kg or less is disclosed. This coating layer comprises a blend of additives that are approved for coatings for direct contact with food. In one embodiment, the coating layer comprises a poly-vinyl amine and a styrene butadiene resin emulsion. 1. A film comprising a polyolefin film and a coating layer , wherein the film has an O2TR value in cc/m2/day in a range from 100 to 2000 , and a MOSH value of 0.6 mg/kg or less.2. The film of claim 1 , wherein the polyolefin comprises polypropylene.3. The film of claim 1 , wherein the polyolefin comprises polyethylene.4. The film of claim 1 , wherein the polyolefin comprises a mixture of different polyolefins.5. The film of claim 1 , wherein the film has a MOSH value of 0.4 mg/kg or less.6. The film of claim 1 , wherein the film has a MOSH value of 0.25 mg/kg or less.7. The film of claim 1 , wherein the coating layer only contains additives approved for coatings in direct contact with food.8. The film of claim 1 , wherein the coating layer comprises a vinyl resin.9. The film of claim 1 , wherein the coating layer comprises a styrene-containing material.10. The film of claim 1 , wherein the coating comprises a vinyl resin and a styrene-containing material.11. The film of claim 1 , wherein the coating layer comprises a poly-vinyl amine and a styrene butadiene resin emulsion.12. The film of claim 1 , wherein the coating layer comprises a poly-vinyl alcohol and a styrene butadiene resin emulsion.13. The film of claim 1 , wherein the coating layer comprises a poly-vinyl amine and a styrene acrylic emulsion.14. The film of claim 1 , wherein the coating layer comprises a poly-vinyl alcohol and a styrene acrylic emulsion.15. The film of claim 1 , wherein the polyolefin film comprises a multilayer polyolefin film.16. The film of claim 1 , further comprising an outermost ...

COMPOSITE BIOMATERIALS WITH IMPROVED BIOACTIVITY AND THEIR USE FOR BONE SUBSTITUTE

The present invention concerns composite biomaterials comprising ceramic and a biodegradable polymer gel, with improved bioactivity, their process of preparation and their use for orthopedics, dentistry or reconstructive surgery, in particular for use as a bone filler. 2. The composite biomaterial according to claim 1 , where said bioactive components are chosen from bioactive ionic species and active ingredients.3. The composite biomaterial according to claim 1 , where said ceramic further comprises fluoroapatite (FHA) and/or chloro-apatite (CLHA).4. The composite biomaterial according to wherein said phosphate is present in anyone of the following forms : Monocalcium phosphate monohydrate (MCPM) (Ca(HPO).HO) claim 1 , Monocalcium phosphate anhydrous (MCPA) (Ca(HPO)) claim 1 , Dicalcium phosphate anhydrous (DCPA) (CaHPO) claim 1 , Dicalcium phosphate dihydrate (DCPD) (CaHPO.2HO) claim 1 , Octacalcium phosphate (OCP) (CaH(PO).5HO) claim 1 , α-Tricalcium phosphate (α-TCP) (α-Ca(PO)) claim 1 , β-Tricalcium phosphate (β-TCP) (β-Ca(PO)) claim 1 , Amorphous calcium phosphate (ACP) (Ca(PO)) claim 1 , Hydroxyapatite (HA) (Ca(PO)(OH)) claim 1 , Tetracalcium phosphate (TTCP) (Ca(PO)O) claim 1 , as well as the deficient or ion-substituted calcium orthophosphates.5. The composite biomaterial according to where the biodegradable polymer gel is chosen from proteins claim 1 , polysaccharides claim 1 , aliphatic polyesters claim 1 , and mixtures thereof.6. The composite biomaterial according to wherein said polymer gel is chosen from collagen claim 1 , gelatin claim 1 , fibronectin claim 1 , chitosan claim 1 , hyaluronic acid claim 1 , alginate claim 1 , cellulose and its derivate (HPMC claim 1 , MC claim 1 , HPC claim 1 , CMC) claim 1 , PVA claim 1 , PVP dextran claim 1 , pullulan claim 1 , poly (α-hydroxy acid) PLA claim 1 , poly (glycolic acid) PGA claim 1 , their PLGA copolymers claim 1 , poly (ε-caprolactone) PCL claim 1 , poly(3-hydroxybutyrate) PHB claim 1 , poly(3- ...

Citric acid-modified polyvinyl amine film

A composite barrier film has a base layer of polyester or polyolefin with a barrier layer modified polyvinyl amine (mPVA). The mPVA is polyvinyl alcohol/polyvinyl amine copolymer crosslinked with citric acid and an optional additional crosslinking agent such as epichlorohydrin. The barrier layer can be applied by deposition of a reactive aqueous solution onto the base layer, heating and drying to remove water and crosslink the reactants. Excellent barrier properties of the film are obtained by applying and crosslinking the barrier layer during the transverse stretching steps of a biaxial oriented polymer film continuous fabrication process. Superior barrier properties are achieved with transverse stretching by a factor of about 3-4 for polyester and 4-10 for polyolefin.

POLYMER COMPOSITIONS

The invention relates to novel a high-volume swelling hydrogel which comprises a plurality of pores which are defined by an interpenetrating network, and/or a semi-interpenetrating network and/or simple cross-linked arrangement of a plurality of one or more species of hydrophilic polymers, optionally together with one or more biocompatible polymers and optionally together with one or more plasticising agents, characterised in that at least some of the pores are at least partially collapsed and/or flattened, and further characterised in that the interpenetrating network and/or semi-interpenetrating network and/or cross-linked arrangement which defines the collapsed and/or flattened pores is substantially unbroken. The invention also relates to a process for preparing such hydrogels, and to their use as an appetite suppressant. 16.-. (canceled)7. A process for preparing a compressed hydrogel comprising the steps:a) providing an initial hydrogel which comprises a plurality of pores which are defined by an interpenetrating network, or a semi-interpenetrating network or a simple cross-linked structure, and which is made from a composition comprising one or more hydrophilic polymers;b) treating the initial hydrogel with heat or water vapor or both and applying a compressive force suitable to reduce the volume of at least some of the pores of the initial hydrogel thereby to yield a compressed hydrogel.8. The process according to claim 7 , wherein the initial hydrogel comprises one or more additional ingredients selected from additional polymers and plasticizing agents.9. (canceled)10. The process according to claim 7 , wherein the treatment conditions in step b) comprise treating the initial hydrogel with steam.11. The process according to claim 7 , wherein the size of one or more of the pores of the initial hydrogel is reduced by at least a factor of 2 claim 7 , following the application of the compressive force in step b).12. The process according to claim 7 , wherein ...

Hydrophilic Coating Methods for Chemically Inert Substrates

The present invention discloses methods for producing a hydrophilic coating for chemically inert substrates such as fluoropolymers using a multi-step coating process consisting of (1) producing a plasma polymerization coating of alcohol compounds on the substrate, followed by (2) sequentially contacting the plasma polymer coated substrate with one or more solutions of hydrophilic polymers. Advantageously, such methods produce a strongly adhered hydrophilic coating for fluoropolymer and other chemically inert substrates.

POROUS HOLLOW FIBER MEMBRANE

Disclosed is a porous hollow fiber membrane containing a polysulfone-based polymer as a main component, which has an asymmetric structure in which the inner surface side is dense and the outer surface side is coarse, wherein an average of a minor axis diameter of pores of an inner surface is 20 nm or more and 40 nm or less, an open porosity of the inner surface is 10% or more and 30% or less, and a polymer including a monocarboxylic acid vinyl ester unit is supported on at least one of the outer surface and the inner surface. The present invention provides a hollow fiber membrane which has excellent removing performance of substances to be separated such as viruses, and can be used as a separation membrane having high permeability even in a treatment under low pressure. 1. A porous hollow fiber membrane containing a polysulfone-based polymer as a main component , which has an asymmetric structure in which the inner surface side is dense and the outer surface side is coarse , wherein an average of a minor axis diameter of pores of an inner surface is 20 nm or more and 40 nm or less , an open porosity of the inner surface is 5% or more and 30% or less , and a polymer including a monocarboxylic acid vinyl ester unit is supported on at least one of the outer surface and the inner surface.2. The porous hollow fiber membrane according to claim 1 , wherein the thickness of a dense layer with no pores having a pore diameter of 130 nm or more on the inner surface side is 1 μm or less.3. The porous hollow fiber membrane according to claim 1 , wherein a ratio of a major axis diameter to a minor axis diameter of pores of the inner surface is 2 or more and 6 or less.4. The porous hollow fiber membrane according to claim 1 , which has a thickness of 20 μm or more and 100 μm or less.5. The porous hollow fiber membrane according to claim 1 , wherein the monocarboxylic acid vinyl ester unit is a unit represented by “—CH(OCO—R)—CH—” (R is an aliphatic hydrocarbon group or an aromatic ...

Urea composition and method for producing same

Disclosed is a particulate, urea-containing composition, to a method and apparatus for producing it, to the use thereof as fertilizer, as technical urea or as feed additive, and to the use of an additive for producing a particulate, urea-containing composition.

INCREASED STIFFNESS CENTER OPTIC IN SOFT CONTACT LENSES FOR ASTIGMATISM CORRECTION

A molded contact lens comprising a stiffer optic zone relative to the peripheral zone of the contact lens provides an optical element for correcting astigmatism without the need for or substantially minimizing the need for the correction of rotational misalignment. The higher elastic modulus optic zone vaults over the cornea thereby allowing a tear lens to form. The tear lens follows or assumes the shape of the back surface of the contact lens. The combination of the tear lens and the optical zone provide an optical element for correction of refractive error. 1. An ophthalmic device comprising:a contact lens having a central optic zone and a peripheral zone surrounding the central optic zone, the peripheral zone being formed from a second material having a second Young's modulus; anda first material incorporated into the central optic zone of the contact lens, the first material having a first Young's modulus of at least about 1000 psi and a water content of at least about 10%, formed from a first reactive mixture comprising at least one N-alkyl methacrylamide and at least one macromer silicone-containing component.2. The ophthalmic device of wherein said first material further comprising a water content of about 20 to about 40%.3. The ophthalmic device of wherein said first reactive mixture further comprises at least one photoinitiator.4. The ophthalmic device of wherein the first and second materials are cured via exposure to light.59-. (canceled)10. The ophthalmic device of wherein said first reactive mixture comprises about 5 wt % to about 50 wt % of at least one N-alkyl methacrylamide claim 1 , based upon all reactive components.13. The ophthalmic device of wherein said N-alkyl methacrylamide is N-methyl methacrylamide.14. The ophthalmic device of wherein said first material has a modulus of about 1000 psi to about 200 claim 1 ,000 psi claim 1 , said first reactive mixture comprises about 5 to about 15 wt % at least one crosslinking component.15. The silicone ...

SOLUTION-PROCESSABLE HRI OPTICAL FILMS COMPRISING TITANATE NANOPARTICLES

The present invention provides new hybrid materials () comprising titanate nanoparticles (), surfactants () and a polymeric matrix () as defined in the claims. The hybrid materials have superior optical properties and may be in the form of a thin film or in the form of micro lenses. The invention further provides for intermediate goods and devices comprising such hybrid materials, and for starting materials to obtain such hybrid materials. The invention also provides for processes of manufacturing said starting materials, said hybrid materials, said intermediate goods, for the use of said starting materials, said hybrid materials, and said intermediate goods. 2. The hybrid material according to claim 1 , wherein the nanoparticles are of a core-shell structure claim 1 , wherebythe core is a titanate of formula (I) and the shell is Al2O3; and.3. The hybrid material according to claim 1 , wherein the titanate is a rutile type TiO2.4. The hybrid material according to claim 1 , comprising 75-85 wt-% nanoparticles.5. The hybrid material according to claim 1 , wherein said surfactant is a monocarboxylic acid of formula (II) claim 1 ,{'br': None, 'sub': n', '2n', 'q', '2, 'R(OCH)OCHC(O)OH\u2003\u2003(II)'}wherein{'sub': '1-5', 'R is C-alkyl,'}q is an integer from 0 to 5,n is an integer from 1 to 3.6. The hybrid material according to claim 1 , wherein said surfactant is a phosphate ester of an alkyl ether wherein the alkyl ether is of formula (IV) claim 1 ,{'br': None, 'sub': 4', '2', '4', 'm', '3', '6', 'n, 'RO—(CHO)(CHO)—\u2003\u2003(IV),'}wherein{'sub': 4', '1-10, 'Ris C-alkyl;'}m is an integer from 2 to 60;n is an integer from 2 to 60.10. The hybrid material according to in the form of a thin layer or in the form of micro lenses claim 1 ,said layer having a thickness of 30 nm-100 μm; and/orsaid micro lenses having a diameter of 1-500 μm; and/orsaid nanoparticles having a size of 5-30 nm.11. An intermediate good comprising a substrate coated with at least one hybrid ...

CONDUCTIVE CELLULOSE NANOCRYSTALS, METHOD OF PRODUCING SAME AND USES THEREOF

The present disclosure provides a core-shell nanocomposite material comprising an intrinsically conductive polymer (ICP) and surface-modified cellulose nanocrystals (CNCs) as well as synthesis for preparing same and its use thereof in various applications. 1. A composite having a core-shell arrangement , said composite comprising cellulose nanocrystal (CNC) as the core , a first layer comprising at least one surface agent in contact with said CNC and a second layer comprising at least one intrinsically conductive polymer (ICP) in contact with said surface agent; wherein said CNC has a rod-like shape with a mean diameter of 10-20 nm and length of 200-400 nm; and wherein said core is individually coated by said ICP.2. The composite of claim 1 , wherein said surface agent is an amphiphilic agent.3. The composite of claim 1 , wherein said surface agent is poly(4-vinylpyridine) (P4VP) claim 1 , poly(N claim 1 ,N-dimethyl acrylamide) (PDMA) claim 1 , Polyethylenimine (PEI) claim 1 , or poly(N-vinylpyrrolidone) (PVP).4. The composite of claim 1 , wherein said ICP is polypyrrole claim 1 , polyaniline claim 1 , polyindole claim 1 , polythiophene claim 1 , poly(3-methylthiophene) claim 1 , poly(N-methyl aniline) claim 1 , or poly(o-toluidine).5. The composite of claim 1 , wherein a mass ratio of the surface agent/CNC is from about 5/100 to about 100/100.6. A process for preparing a composite having a core-shell arrangement claim 1 , said composite comprising cellulose nanocrystal (CNC) as the core claim 1 , a first layer comprising at least one surface agent in contact with said CNC and a second layer comprising at least one intrinsically conductive polymer (ICP) in contact with said surface agent;said process comprising:dispersing the cellulose nanocrystal (CNC) in a solution, wherein said CNC has a rod-like shape with a mean diameter of 10-20 nm and length of 200-400 nm;mixing the CNC solution and at least one surface agent to cause adsorption of said surface agent on the ...

Micropulp-elastomer masterbatches and compounds

A masterbatch composition of elastomer and from 20 to 100 parts per hundred parts elastomer of fibrous micropulp wherein the micropulp has fibers with a volume weighted average fiber length of from 20 to 200 micrometers as measured by laser diffraction, a relative specific surface area of from 30 to 600 square meter per gram as measured by nuclear magnetic resonance and the fibers selected from the group consisting of aromatic polyamide, aromatic copolyamide, polyacrylonitrile and polyazole.

FILM COATING AND FILM COATING COMPOSITIONS FOR SURFACE MODIFICATION AND METALLIZATION

The present disclosure provides a coating composition for use in coating polyester film, polyimide film, polyvinyl chloride film, semi-embossed film, polyvinyl chloride film and like, comprises poly(4-vinyl pyridine), SU-8, a solution such as isopropyl alcohol, 1,4-dioxane. A simple universal solution-based coating method for fast surface modification of various substances by applying an effective amount of pyridine ligands to immobilize transitional metal ions that can behave as the catalyst of electroless copper plating for surface metallization while functioning as the adhesion-promoting layer between the substrate and deposited metal. 1. A coating composition , comprising:a mixture of two pre-prepared solutions, the first solution comprising poly (4-vinyl pyridine) dissolved in a first solvent which is any one of 2-propanol, methanol, ethanol, and acetone, the second solution comprising SU-8 dissolved in a second solvent which is any one of 1,4-dioxane, gamma-butyrolactone (GBL) and cyclopentanone, the poly (4-vinyl pyridine) being present in the mixture in a range from about 0.5% to about 4% by weight/volume of the composition, the SU-8 being present in the mixture in a range from about 0.05% to about 1% by weight/volume of the composition, the remainder of the composition up to 100% being the first and second organic solvents, the coating composition being used for use in coating a substrate.2. The coating composition according to claim 1 , wherein the first organic solvent is 2-propanol claim 1 , and the second solvent is 1 claim 1 ,4-dioxane.3. The coating composition according to claim 2 , wherein the 1 claim 2 ,4-dioxane is present in the composition in a range of about 45% to about 50% by volume of the composition claim 2 , and wherein the 2-propanol is present in the composition in a range of about 45% to about 50% by volume of the composition.4. The coating composition of claim 1 , wherein said poly (4-vinyl pyridine) is characterized in that it has a ...

METHOD FOR PRODUCING MEDICAL DEVICE AND MEDICAL DEVICE

A method for producing a medical device, and a medical device are provided, and the production method includes a step of heating a device together with a solution containing a polymer having the following repeating unit (A) and the following repeating unit (B), or a step of bringing a device into contact with a heated product of a solution containing a polymer having the following repeating unit (A) and the following repeating unit (B): 1. A method for producing a medical device , the method comprising:heating a device together with a solution comprising a polymer having the following repeating unit (A) and the following repeating unit (B); or (A) hydrophilic repeating unit; and', '(B) a repeating unit having a polyoxyalkylene group in a side chain, the terminal of the side chain comprising an alkyl group having 5 to 30 carbon atoms, an alkanoyl group having 5 to 30 carbon atoms, or an aryl group having 6 to 30 carbon atoms., 'bringing a device into contact with a heated product of a solution comprising a polymer having the following repeating unit (A) and the following repeating unit (B)2. The method for producing a medical device according to claim 1 , wherein the repeating unit (A) is at least one selected from the group consisting of a repeating unit (A-1) having a polyoxyalkylene group in a side chain claim 1 , the terminal of the side chain being composed of a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; a repeating unit (A-2) having an ammonioalkyl phosphate group at the terminal of a side chain; a repeating unit (A-3) having an amide group in a side chain; a repeating unit (A-4) having a heterocyclic ring containing nitrogen and oxygen claim 1 , at the terminal of a side chain; a repeating unit (A-5) having a lactam in a side chain; a repeating unit (A-6) having a betainic group at the terminal of a side chain; an anionic repeating unit (A-7); and a cationic repeating unit (A-8).4. The method for producing a medical device according to claim 1 ...

FILM-FORMING COMPOSITIONS BASED ON STARCHY MATERIAL AND ARTICLES OBTAINED THEREOF

The instant invention relates to new film-forming compositions based on starchy material, comprising isosorbide. The instant invention also relates to products made from the film-forming compositions of the invention, in particular hard and soft capsules shells, and to methods for the manufacture of such products. 1. A film-forming composition comprising:a hydrolyzed alkylated starch;an additional hydrocolloid;isosorbide; anda plasticizer.2. The film-forming composition of claim 1 , wherein the plasticizer is selected from sorbitol claim 1 , glycerol claim 1 , trehalose claim 1 , triethyl citrate claim 1 , polysorbate claim 1 , Carnauba wax claim 1 , hydrogenated castor oil claim 1 , and mixtures thereof.3. The film-forming composition of claim 2 , wherein the plasticizer is selected from glycerol claim 2 , threhalose claim 2 , sorbitol claim 2 , and mixtures thereof.4. The film-forming composition according to claim 1 , wherein the plasticizer at least comprises sorbitol claim 1 , and optionally glycerol.5. The film-forming composition according to claim 1 , wherein the hydrolyzed alkylated starch is a hydrolyzed hydroxypropylated starch.6. The film-forming composition according to claim 1 , wherein said hydrolyzed alkylated starch is derived from a starch exhibiting an amylose content within a range of from 25 to 45%; these percentages being expressed in dry weight of amylose with respect to the total dry weight of said starch from which it is derived.7. The film-forming composition according to claim 1 , wherein said film-forming composition is essentially composed of natural-origin products.8. The film-forming composition of claim 7 , wherein said film-forming composition is essentially composed of plant-origin products.9. A product comprising the film-forming composition of .10. The product of claim 9 , which is edible.11. The product according to claim 9 , which is one of a capsule shell claim 9 , a capsule claim 9 , a film claim 9 , a coated product claim 9 , ...

N-VINYL LACTAM-BASED CROSSLINKED POLYMER, COSMETIC, ABSORBENT AGENT FOR INK AND ABSORBENT COMPOSITE

The invention aims to provide an absorbent composite having an excellent absorption capacity for various liquids. The invention relates to an absorbent composite including: a nonionic crosslinked polymer; and an absorbent base material, the absorbent composite having a mass ratio of the nonionic crosslinked polymer to the absorbent base material (nonionic crosslinked polymer/absorbent base material) of 0.1 or more and less than 2. 1. An absorbent composite comprising:a nonionic crosslinked polymer; andan absorbent base material,the absorbent composite having a mass ratio of the nonionic crosslinked polymer to the absorbent base material (nonionic crosslinked polymer/absorbent base material) of 0.1 or more and less than 2.2. The absorbent composite according to claim 1 ,wherein the nonionic crosslinked polymer comprises a structural unit derived from an amide monomer and/or a structural unit derived from a (poly)alkylene glycol monomer.3. The absorbent composite according to claim 1 ,wherein the absorbent base material comprises a hydrophilic fiber.4. The absorbent composite according to claim 3 ,wherein the hydrophilic fiber is at least one selected from the group consisting of cellulosic fibers, polyamide fibers, animal fibers, and hydrophobic fibers having a hydrophilic surface layer.5. The absorbent composite according to claim 1 ,wherein the absorbent base material has a sheet shape or a bag shape.6. A deodorant comprising the absorbent composite according to .7. A deodorizer comprising the deodorant according to .8. A method of using the deodorant according to claim 6 , the deodorant being incorporated into a deodorizer.9. A cosmetic comprising the absorbent composite according to .10. A method of using the absorbent composite according to as a cosmetic.11. An ink absorber comprising the absorbent composite according to .12. An absorbent material comprising the ink absorber according to .13. An ink-absorbed body comprising the ink absorber according to and ink ...

PHOTONIC CRYSTAL STRUCTURE AND ANTI-FORGERY COLOR CONVERSION FILM COMPRISING SAME

An anti-forgery color conversion film includes a photonic crystal structure whose color is converted by an external stimulus such as a breath. The photonic crystal structure includes a first refractive index layer including a first polymer exhibiting a first refractive index; and a second refractive index layer which is alternately laminated with the first refractive index layer and includes a second polymer exhibiting a second refractive index. A consumer who purchases an article including the color conversion film may easily distinguish the authenticity of the article. 2. The anti-forgery color conversion film according to claim 1 , wherein{'sub': 1', '2, 'Rand Rare each independently hydrogen or methyl,'}{'sub': '3', 'Ris represented by Formula 2,'}{'sub': '6', 'Ris NH, and'}{'sub': '7', 'Ris fluoromethyl, difluoromethyl, trifluoromethyl, 1-fluoroethyl, 2-fluoroethyl, 1,1-difluoroethyl, 1,2-difluoroethyl, 2,2-difluoroethyl, 1,1,2-trifluoroethyl, 1,2,2-trifluoroethyl, 2,2,2-trifluoroethyl, 1-fluoropropyl, 2-fluoropropyl, 1,1-difluoropropyl, 1,2-difluoropropyl, 2,2-difluoropropyl, 1,1,2-trifluoropropyl, 1,2,2-trifluoropropyl, 2,2,2-trifluoropropyl, 1-fluorobutyl, 2-fluorobutyl, 1,1-difluorobutyl, 1,2-difluorobutyl, 2,2-difluorobutyl, 1,1,2-trifluorobutyl, 1,2,2-trifluorobutyl, or 2,2,2-trifluorobutyl.'}4. The anti-forgery color conversion film according to claim 1 , wherein the external stimulus is a relative humidity of 70% or more.5. The anti-forgery color conversion film according to claim 1 , comprising a plurality of photonic crystal structures claim 1 , wherein the respective photonic crystal structures are converted into different colors from each other by the external stimulus.6. The anti-forgery color conversion film according to claim 1 , wherein the copolymer including the repeating unit represented by Formula 1 is swelled by the external stimulation claim 1 , such that a reflection wavelength thereof is shifted.8. The anti-forgery color conversion film ...

Modified polymers and stable emulsions comprising the same

A modified polymer includes a diene-based polymeric chain and at least one end terminated with a blocked isocyanate group. The blocked isocyanate group may be the reaction product of an isocyanate and a blocking agent, and the blocking agent is selected, such that the modified polymer deblocks at temperatures of at least 100 C. An aqueous emulsion of the modified polymer may be provided that may be surfactant-free. The emulsion may be combined with one or more latexes to provide a treatment solution for a fabric or fiber that does not require the use of resorcinol and formaldehyde. Once treated and dried, the fabric or fiber may be used to impart tensile strength to rubber products, such as tires, air springs, flexible couplings, power transmission belts, conveyor belts, and fluid routing hoses.

INTERPENETRATING POLYMER NETWORK CONTAINING CROSS-LINKED POLY(N-VINYLAMINE)

Disclosed is an interpenetrating polymer network (IPN) that includes two polymers which are at least partially interlaced on a molecular scale, wherein the first polymer is obtainable by hydrolyzing a cross-linked poly(N-vinylformamide), and the second polymer is a copolymer of monomers A and B. The monomer A is preferably cationic, such as dimethylaminoethylacrylate methyl chloride, and the monomer B may be for example acrylamide. The IPN material may be used in paper making processes as drainage agent, retention agent, sizing agent or flocculant agent. 1. An interpenetrating polymer network (IPN) , comprising two polymers which are at least partially interlaced on a molecular scale , wherein the first polymer is obtainable by hydrolyzing a cross-linked poly(N-vinylformamide) , and the second polymer is a copolymer of monomers A and B , wherein:monomer A is selected from a group comprising dimethylaminoethylacrylate methyl chloride, (3-acrylamidopropyl)trimethyl ammonium chloride, 2-(diethylamino)ethyl acrylate, 2-(dimethylamino)ethyl acrylate, [2-(methacryloyloxy)ethyl]trimethyl-ammonium chloride, and [3-(methacryloylamino)propyl]trimethylammonium chloride; andmonomer B is selected from a group comprising acrylamide, N-methylolacrylamide, N-methylol(meth)acrylamide, N,N-dimethylamino-propyl acrylamide, N,N-dimethyl-aminopropylacrylamide, N,N-dimethyl-aminopropylmethacrylamide, N,N-dimethyl-aminoethylacrylamide, and N-[2-(dimethylamino)-1,1-dimethylethyl]-acrylamide.2. An interpenetrating polymer network (IPN) according to claim 1 , wherein the cross-linked poly(N-vinylformamide) (PNVF) is obtainable by copolymerizing NVF with sodium acrylate and in presence of a cross-linker polyethylene glycol diacrylate.3. An interpenetrating polymer network (IPN) according to claim 1 , wherein the first polymer is obtainable by hydrolyzing the cross-linked poly(N-vinylformamide) under alkaline conditions.4. An interpenetrating polymer network (IPN) according to claim 3 , ...

Fibrin composition comprising carrier material, method and wound articles

The invention includes a forced-air blanket for providing a profusion of air to a patient, comprising a bottom layer with a plurality of openings configured to allow a profusion of air to pass through the bottom layer and an upper layer bonded to the bottom layer around a periphery, wherein the upper layer is also bonded to bottom layer by a plurality of linear seals and a plurality of staked seals. In an embodiment, at least one of more of the linear seals have one end which is joined to a portion of the periphery. In another embodiment, the forced-air blanket may further include at least one elongated seal that is positioned proximate to the inlet. The arrangement of the plurality of staked seals, elongated seals and linear seals assists in providing a blanket that is of a low-profile with even air distribution.

Curable resin composition, curable resin molded body, cured resin molded body, method for producing each of same, and laminate body

The present invention is: a curable resin composition comprising a thermoplastic resin (A), a curable monomer (B), and a photoinitiator (C), the thermoplastic resin (A) including an aromatic ring in its molecule, and having a glass transition temperature (Tg) of 140° C. or more, and the photoinitiator (C) having an absorbance at 380 nm of 0.4 or more when measured in a 0.1 mass % acetonitrile solution; a curable resin formed article obtained by forming the curable resin composition; a cured resin formed article obtained by curing the curable resin formed article; a laminate comprising at least one layer that is formed of a cured resin obtained by curing the curable resin composition. The present invention provides: a cured resin formed article that exhibits excellent heat resistance, includes only a small amount of residual low-boiling-point substance (e.g., solvent and curable monomer), and has small in-plane retardation, a method for producing the same, a curable resin composition and a curable resin formed article that are useful as a raw material for producing the cured resin formed article, and a laminate that includes a layer formed of a cured resin.

Composite material for absorbent article, and method for manufacturing said material

A composite material for an absorbent article and a method for manufacturing said composite material, said composite material being obtained by causing an absorbent material to adhere by electrostatic interaction to a substrate material, the surface of the absorbent material being positively or negatively charged in a prescribed solvent selected from among a nonpolar organic solvent, a polar organic solvent, and a water/polar organic solvent mixture; and the surface of the composite material being charged to an electrical charge opposite to that of the surface of the substrate material, in the prescribed solvent. The substrate material has a fiber substrate or a plastic substrate, and a polyelectrolyte layer provided on the surface layer; and/or the absorbent material has an absorbent-particle substrate or an absorbent fiber substrate, and a polyelectrolyte layer provided on the surface layer.

POLYVINYL ALCOHOL COMPOSITION, PREPARATION METHOD THEREOF, AND POLYVINYL ALCOHOL MEDICAL CATHETER CONTAINING THEREOF

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment. 1. A polyvinyl alcohol composition , wherein raw materials of the polyvinyl alcohol composition comprise the following components in parts by weight: 60-90 parts of polyvinyl alcohol; and 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.2. The polyvinyl alcohol composition according to claim 1 , wherein the raw materials of the polyvinyl alcohol composition further comprise 4-10 parts of urea by weight.3. The polyvinyl alcohol composition according to claim 2 , wherein the raw materials of the polyvinyl alcohol composition further comprise 5-15 parts of glycerol and 2-10 parts of calcium chloride by weight.4. The polyvinyl alcohol composition according to claim 3 , wherein the raw materials of the polyvinyl alcohol composition comprise the following components in parts by weight: 76-85 parts of polyvinyl alcohol; 5.4-6.5 parts of urea; 8-11 parts of glycerol; 3-5 parts of calcium chloride; 0.4-0.6 part of glutaraldehyde; 0.1-2 parts of acid; wherein the acid is one of a 10-98 mass % sulfuric acid aqueous solution claim 3 , an aliphatic carboxylic acid claim 3 , pyrophosphoric acid claim 3 , and disulfuric acid.5. The polyvinyl alcohol composition according to claim 1 , wherein a polymerization degree of the polyvinyl alcohol is 300-7 claim 1 ,000 claim 1 , and an alcoholysis degree of the polyvinyl alcohol is 50-99%.6. A preparation method of the polyvinyl alcohol composition according to claim 1 , comprising:step 1: mixing ...

COATING FLUID

The present invention provides a coating fluid including: a hydroxy group-containing resin; an inorganic layered compound; and a liquid medium, in which a ratio (outflow time (B)/outflow time (A)) of outflow time (B) of a coating fluid at 5° C. measured by a Zahn cup to outflow time (A) of a coating fluid at 24° C. measured by a Zahn cup is 1.40 or less. 1. A coating fluid , comprising:a hydroxy group-containing resin;an inorganic layered compound; anda liquid medium, whereina ratio (outflow time (B)/outflow time (A)) of outflow time (B) of a coating fluid at 5° C. measured by a Zahn cup to outflow time (A) of a coating fluid at 24° C. measured by a Zahn cup is 1.40 or less.2. The coating fluid according to claim 1 , wherein the outflow time (B)/outflow time (A) is 1.30 or less.3. The coating fluid according to claim 1 , wherein an amount of a hydroxy group per 100 g of the hydroxy group-containing resin is 1.50 to 2.27 mol.4. The coating fluid according to claim 1 , wherein the hydroxy group-containing resin further has an amino group.5. The coating fluid according to claim 4 , wherein an amount of the amino group per 100 g of the hydroxy group-containing resin is 0.046 to 0.682 mol.6. The coating fluid according to claim 1 , wherein a number average molecular weight of the hydroxy group-containing resin is 10 claim 1 ,000 to 50 claim 1 ,000.7. The coating fluid according to claim 1 , wherein the hydroxy group-containing resin is a vinylamine-vinylalcohol copolymer.8. The coating fluid according to claim 1 , wherein a content of the hydroxy group-containing resin is 0.2 to 9.05% by mass per 100% by mass of the coating fluid.9. The coating fluid according to claim 1 , wherein the liquid medium contains water and ethanol.10. The coating fluid according to claim 9 , wherein a content of ethanol is 1 to 70% by mass per 100% by mass of the total of water and ethanol.11. The coating fluid according to claim 1 , wherein a content of the liquid medium is 90 to 99.5% by ...

AQUEOUS COATING COMPOSITIONS FOR BARRIER COATINGS, COATED PACKAGING MATERIAL, AND METHOD

An aqueous coating composition and a coated packaging material prepared by applying the aqueous coating composition to packaging material comprise poly(vinyl alcohol-vinyl primary amine), poly(methyl vinyl ether-maleic anhydride), and a Camicrogranulated bentonite clay. The poly(vinyl alcohol-vinyl primary amine) is about 90-98.5 weight percent and the combined weight of poly(methyl vinyl ether-maleic anhydride) and the Camicrogranulated bentonite clay is from about 1.5-10 weight percent of the coating formed on the packaging material. The weight ratio of the poly(methyl vinyl ether-maleic anhydride) to the Camicrogranulated bentonite clay is from about 20:80 to about 80:20. The poly(methyl vinyl ether-maleic anhydride) is at least 0.8 weight percent of the coating formed on the packaging material and/or has a weight average molecular weight of at least about 1,000,000 Daltons. The applied coating composition is dried at a temperature of up to about 50° C. to form the coated packaging material. The coating is ink-receptive and has an oxygen transmission rate of up to 0.71 cm/100 in/24 hr and a moisture vapor transmission rate of up to about 2.2 g/m/24 hr. 1. A method of making a coated packaging material , comprising:{'sup': ++', '++', '++, 'applying onto a surface of a packaging material an aqueous coating composition comprising water, poly(vinyl alcohol-vinyl primary amine), poly(methyl vinyl ether-maleic anhydride), and a Camicrogranulated bentonite clay, wherein the poly(vinyl alcohol-vinyl primary amine) is from about 90 to about 98.5 weight percent of total nonvolatile weight of the aqueous coating composition, wherein the combined weight of poly(methyl vinyl ether-maleic anhydride) and the Camicrogranulated bentonite clay is from about 1.5 to about 10 weight percent of nonvolatile content of the aqueous coating composition, wherein the weight ratio of the poly(methyl vinyl ether-maleic anhydride) to the Camicrogranulated bentonite clay is from about 20:80 to ...

Hydrophilic coatings through in situ surface polymerization

A medical device for insertion or implantation in a body includes a polymer substrate and a layer of poly(vinyl pyrrolidone-alt-maleic anhydride) formed on a surface of the polymer substrate. Polymer chains of the poly(vinyl pyrrolidone-alt-maleic anhydride) are entangled with the polymer substrate.

High-Performance Anion Exchange Membranes and Methods of Making Same

Anion exchange membranes may include a polymeric microporous substrate and a cross-linked anion exchange polymeric layer on the substrate. Anion exchange membranes may have a resistivity of less than about 1.5 Ohm-cm 2 and an apparent permselectivity of at least about 95%. The anion exchange membranes may be produced by a unique, two step process.

CONDUCTIVE CELLULOSE NANOCRYSTALS, METHOD OF PRODUCING SAME AND USES THEREOF

The present disclosure provides a core-shell nanocomposite material comprising an intrinsically conductive polymer (ICP) and surface-modified cellulose nanocrystals (CNCs) as well as synthesis for preparing same and its use thereof in various applications. 1. A composite having a core-shell arrangement , said composite comprising cellulose nanocrystal (CNC) as the core , a first layer comprising at least one surface agent in contact with said CNC and a second layer comprising at least one intrinsically conductive polymer (ICP) in contact with said surface agent.2. The composite of claim 1 , wherein said surface agent is an amphiphilic agent.3. The composite of claim 1 , wherein said surface agent is poly(4-vinylpyridine) (P4VP) claim 1 , poly(N claim 1 ,N-dimethyl acrylamide) (PDMA). poly(N claim 1 ,N-dimethyl acrylamide) (GTMAC) claim 1 , Polyethylenimine(PEI) claim 1 , or poly(N-vinylpyrrolidone) (PVP).4. The composite of claim 1 , wherein said ICP is polypyrrole claim 1 , polyaniline claim 1 , polyindole claim 1 , polythiophene claim 1 , poly(3-methylthiophene claim 1 , poly(N-methyl aniline) claim 1 , or poly(o-toluidine).5. The composite of claim 1 , wherein a mass ratio of the surface agent/CNC is from about 5/100 to about 100/100.7. The process of claim 6 , wherein said surface agent is poly(4-vinylpyridine) (P4VP) claim 6 , poly(N claim 6 ,N-dimethyl acrylamide) (PDMA) claim 6 , poly(N claim 6 ,N-dimethyl acrylamide) (GTMAC) claim 6 , Polyethylenimine(PEI) claim 6 , or poly(N-vinylpyrrolidone) (PVP).8. The process of claim 6 , wherein said ICP is polypyrrole claim 6 , polyaniline claim 6 , polyindole claim 6 , polythiophene claim 6 , poly(3-methylthiophene claim 6 , poly(N-methyl aniline) claim 6 , or poly(o-toluidine).9. The process of claim 6 , wherein a mass ratio of the surface agent/CNC can range from 5/100 to 100/100.10. The process of claim 6 , wherein said ICP is added dropwise to the reaction mixture.11. The process of claim 6 , further comprising a ...

USE OF A SOLUTION OF POLYSULFONE IN N-ACYL-MORPHOLINE FOR THE FABRICATION OF UF MEMBRANES

Solution comprising a sulfone polymer, a water-soluble polymer and a N-acyl-morpholine of formula I wherein Ris a hydrogen atom or a C1- to C3 alkyl group.

Polyurethane-hydrogel composition comprising chlorhexidine

The invention is directed to a composition comprising: a polyurethane substrate; a hydrogel forming polymer on at least one of the two faces of the polyurethane substrate; and chlorhexidine on the at least one face comprising the hydrogel forming polymer; wherein the hydrogel polymer is covalently linked to the polyurethane substrate. The invention is also directed to a dressing in comprising the composition and to a process for the preparation of the composition, the process comprising the following steps: a) in impregnating at least one face of a polyurethane substrate with a solution comprising a reactive diolefin and a free radical initiator; b) extracting the polyurethane from the solution and, after drying, immerging the polyurethane in a solution containing the initiator catalyst and the hydrogel forming polymer to obtain PU covalently bond to a hydrogel forming polymer; c) extracting the polyurethane-hydrogel composition and drying in air; d) immerging the product of step iii) into an aqueous solution of chlorhexidine; e) collecting the polyurethane-hydrogel-chlorhexidine product from the solution and drying the obtained composition in air.

Breathable earpieces

The disclosure is related to compositions having water permeability greater than about 20 g/(hr*m2) that includes one or more elastomers and one or more agents and methods of preparing the same. The compositions are suitable for use in acoustical devices such as earpieces, e.g., in-ear earpieces.

MICROPULP-ELASTOMER MASTERBATCHES AND COMPOUNDS

A masterbatch composition of elastomer and from 20 to 100 parts per hundred parts elastomer of fibrous micropulp wherein the micropulp has fibers with a volume weighted average fiber length of from 20 to 200 micrometers as measured by laser diffraction, a relative specific surface area of from 30 to 600 square meter per gram as measured by nuclear magnetic resonance and the fibers selected from the group consisting of aromatic polyamide, aromatic copolyamide, polyacrylonitrile and polyazole. 1. A masterbatch composition , comprising elastomer and from 20 to 100 parts per hundred parts elastomer of fibrous micropulp wherein the micropulp:(i) comprises fibers having a volume weighted average fiber length of from 20 to 200 micrometers as measured by laser diffraction,(ii) has a relative specific surface area of from 30 to 600 square meter per gram as measured by nuclear magnetic resonance, and(iii) comprises fibers selected from the group consisting of aromatic polyamide, aromatic copolyamide, polyacrylonitrile and polyazole.2. The composition of claim 1 , wherein the relative specific surface area of the micropulp is from 40 to 250 square meter per gram.3. The composition of claim 1 , wherein the fibers have a volume average fiber length of from 20 to 100 micrometers.4. The composition of claim 1 , wherein the aromatic polyamide is para-aramid.5. The composition of claim 1 , wherein the elastomer is selected from the group consisting of natural rubber claim 1 , synthetic natural rubber and synthetic rubber.6. The composition of claim 1 , wherein the elastomer further comprises carbon black or silica.7. The composition of claim 1 , wherein the micropulp is a never-dried micropulp.8. The composition of claim 2 , wherein the relative specific surface area of the micropulp is from 250 to 500 square meter per gram.9. The composition of claim 3 , wherein the fibers have a volume weighted average fiber length of from 40 to 100 micrometers.10. The composition of claim 5 , ...

Hydrophilic Polymer Compositions

The present disclosure relates to methods for preparing a hydrophilic composition including intimately mixing a silicone component including at least one polysiloxane and a polymer component, and to hydrophobic polymer compositions prepared thereby. One aspect of the disclosure provides an article having a major exterior surface, the article comprising an intimate mixture of a silicone component including at least one polysiloxane; and a polymer component including at least one hydrophilic polymer having a water-absorption capacity of at least 50 wt. %; wherein the silicone component and the polymer component are present in the mixture in a dry weight ratio within the range of 99.9:0.1 to 30:70. In certain desirable embodiments as otherwise described herein, the intimate mixture is disposed at an exterior surface of the article, e.g., at the major exterior surface of the article. 2. The article of claim 1 , wherein the intimate mixture is disposed at the major exterior surface of the article.3. The article of claim 1 , wherein the silicone component comprises the cured product of a curable composition including one or more cross-linkable polysiloxanes and an effective amount of a cross-linking agent.4. The article of claim 3 , wherein the curable composition includesa first polysiloxane having at least about one silicon hydride group (e.g., at least about two silicon hydride groups), present in the curable composition in an amount within the range of 0.05 wt. % to 40 wt. % (e.g., 0.1 wt. % to 20 wt. %);a second polysiloxane having at least about one alkenyl group (e.g., at least about two alkenyl groups), present in the curable composition in an amount within the range of 2 wt. % to 99.95 wt. % (e.g., 20 wt. % to 99.9 wt. %); andan effective amount of a hydrosilylation catalyst, present in the silicone component, for example, in an amount within the range of 0.0001 wt. % to 1 wt. % (e.g., 0.0001 wt. % to 0.2 wt. %).5. The article of claim 3 , wherein the curable ...

PACKAGING SUBSTRATE

The present invention provides a coating composition comprising a binder, a rheology modifier that acts to increase the viscosity of the coating composition and a particulate component able to remove a volatile organic compound from an environment in contact with the coating composition. 1. A coating composition comprising a binder , a rheology modifier that acts to increase the viscosity of the coating composition and a particulate component able to remove a volatile organic compound from an environment in contact with the coating composition.2. The coating composition according to claim 1 , wherein the binder comprises acrylic and acrylic acid polymers and co-polymers claim 1 , acrylates claim 1 , urethanes claim 1 , urethane acrylates claim 1 , styrene butadiene rubbers claim 1 , cyclised rubbers and mixtures thereof.3. The coating composition according to claim 1 , wherein the rheology modifier comprises water-soluble polymers such as PVOH claim 1 , polyacrylic acid claim 1 , PVP claim 1 , cellulose derivatives such as carboxymethylcellulose (CMC) claim 1 , hydroxypropylcellulose (HPC) and hydroxypropylmethycellulose (HPMC) and mixtures thereof.4. The coating composition according to claim 3 , wherein the rheology modifier comprises non-ionic water-soluble polymers such as PVOH claim 3 , PVP claim 3 , cellulose derivatives such as hydroxypropylcellulose (HPC) and hydroxypropylmethycellulose (HPMC) and mixtures thereof.5. The coating composition according to claim 1 , wherein the binder is a water-based polymeric dispersion and the rheology modifier is a water-soluble polymer.6. The coating composition according to claim 1 , wherein the rheology modifier comprises less than 5% by dry weight of the polymers present in the coating composition.7. The coating composition according to claim 1 , wherein the rheology modifier has a molecular weight of more than 1 MDa.8. A substrate for use in or as a packaging structure comprising a base layer and a coating formed from ...

SILICONE HYDROGEL CONTACT LENSES HAVING NON-UNIFORM MORPHOLOGY

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. 1. A silicone hydrogel contact lens that is a reaction product of 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.2. The silicone hydrogel contact lens of wherein the molar ratio of the polymeric non-reactive internal wetting agent to silicone is at least 1.5 times greater in the lens's surface than in its bulk.3. The silicone hydrogel contact lens of wherein the molar ratio of the polymeric non-reactive internal wetting agent to silicone is at least 2.3 times greater in the lens's surface than in its bulk.4. The silicone hydrogel contact lens of wherein the non-reactive polymeric internal wetting agent is a polyamide.5. The silicone hydrogel contact lens of wherein the non-reactive polymeric internal wetting agent is selected from polyvinylpyrrolidone (PVP) claim 1 , polyvinylmethyacetamide (PVMA) claim 1 , polydimethylacrylamide (PDMA) claim 1 , polyvinylacetamide (PNVA) claim 1 , poly(hydroxyethyl(meth)acrylamide) claim 1 , polyacrylamide claim 1 , and copolymers and mixtures thereof.6. The silicone hydrogel contact lens of wherein claim 1 , in a ...

A method for improving mechanical properties of polymer particles and its applications

Method for improving mechanical properties of polymer particles and its applications

A method for improving the mechanical hardness of polymer particles is provided, the method comprising subjecting the polymer particles to a thermal cycle of heating and subsequently cooling. The method is applicable for use with combinations of preferably three monomers, the monomers having hydrophilic and hydrophobic groups in their polymer chain in order to achieve preferential orientation of the polymer chains in a polar solvent after applying the heating cycles of the invention (for example, but not limited to, polymethylmethacrylate and polystyrene based terpolymers and copolymers). Polymeric abrasives used in slurry compositions for polishing copper and their use in a chemical mechanical polishing method are also provided.

一种多孔型压敏胶及其制备方法

本发明提供了一种多孔型压敏胶及其制备方法，在一定量的压敏胶中，按比例加入发泡剂、保湿剂、赋形剂、胶凝剂、染料、1‑胺丙基‑3‑甲基咪唑双（三氟甲烷磺酰）亚胺盐、环烷酸铈，一起加入本领域通用的发泡装置中发泡，得到一种多孔型压敏胶。

태양광선 제어 필름

본 발명은 보호층, 프라스틱 필름 지지체, 금속증착층, 감압접착층, 이형층이 순차적으로 설계된 태양광선 제어필름에 있어서 이형층이 폴리비닐 피리딘, 폴리비닐피롤리돈 수지와 변성 셀룰로오스 아세테이트 수지로 구성된 이형표면처리층임을 특징으로 하는 태양광선 제어필름에 관한 것이다. 본 발명의 이형표면처리층은 수성이면서 표면이 끈적거리지 않아 시공 작업성이 극히 우수하고 이형필름이 필요없기 때문에 이형필름 박리시 지지필름의 꺾인 자국도 발생하지 않아서 외관도 우수하다. 즉, 본 발명의 변성 셀룰로오스 아세테이트 수지는 표면 처리층이 건조하면서 피막형성능이 우수하여 평활성을 부여하고, 폴리비닐피리딘과 폴리비닐피롤리돈 수지는 시공시 물에 잘 녹아 유리와 감업접착층 사이에서 윤활층 역할과 접착력을 부여하는 역할을 한다.

水性聚合物改性微孔聚烯烃隔膜及其制备方法和用途

本发明涉及水性聚合物改性微孔聚烯烃隔膜及其制备方法和用途，属于电池、电容器等储能器件制造领域。解决的技术问题是改善微孔聚烯烃隔膜的热收缩特性，进而改善电池安全性。它是由水溶性聚合物100份，疏水性单体30～500份，亲水性单体0～200份，引发剂1～5份共聚合得到聚合物胶体乳液，按聚合物胶体乳液固形物含量以100％计，加入0～100％的无机填料和20～100％的增塑剂，所得浆料涂覆在经过表面改性的微孔聚烯烃隔膜的一面或双面干燥得到。该隔膜具有热关闭效应和热收缩小的特性，改善了微孔聚烯烃隔膜在高温情况下收缩的大问题，进而改善电池安全性，同时改善了聚烯烃隔膜的吸液性、保液性。

수분 배리어성 적층체

본 발명의 수분 배리어성 적층체는, 흡습제가 분산되어 있는 수분 트랩층(1)을 갖고 있으며, 상기 흡습제가, 상대 습도 80％에서의 흡습량 Ax와 상대 습도 30％에서의 흡습량 Ay와의 비(Ax/Ay)가 3 이상이 되는 흡습 특성을 갖고 있는 동시에, 상기 수분 트랩층이 2개의 무기 배리어층(3a, 3b)의 사이에 위치하고 있는 것을 특징으로 한다. 이 수분 배리어성 적층체에서는, 장기간에 걸쳐 수분에 대한 배리어성이 발휘된다.

一种具有pH响应的三维互穿网络水凝胶的制备方法

本发明公开了一种具有pH响应的三维互穿网络水凝胶的制备方法，具体步骤如下：首先，将丙烯酸和丙烯腈溶于去离子水中，搅拌均匀，之后加入引发剂过硫酸钾、交联剂N,N'‑亚甲基双丙烯酰胺、聚乙烯比咯烷酮，于60℃～75℃的恒温水浴条件下搅拌反应2h～5h；之后将反应后的溶液浸泡在去离子水中，除去未反应的单体和引发剂，即得到的三维互穿网络水凝胶。该方法以丙烯酸和丙烯腈为单体，合成具有pH响应的交联共聚物；通过聚乙烯比咯烷酮高分子链调控水凝胶的孔径大小，可以提高在pH为8～13之间的水凝胶的吸水性能。

Porous membrane of vinylidene fluoride resin and process for producing the same

정수 처리, 음료수 제조, 공업용수 제조, 배수 처리 등의 수처리에 바람직한 분획 성능, 투과 성능 및 물리적 강도가 우수하고, 저가이며 용이하게 제조 가능한 불화비닐리덴계 수지로 이루어지는 다공막으로서, 그 다공막은 일표면에 장경과 단경의 비의 평균이 1 : 1 이상 또한 5 : 1 보다 작은 원형 또는 타원형의 미세 구멍을 갖고, 타표면에 장경과 단경의 비의 평균이 5 : 1 이상 직사각 형상 미세 구멍을 갖고, 분획 입자 직경이 0.2㎛ 이상이다. A porous film made of a vinylidene fluoride resin which is excellent in the fractionation performance, permeation performance and physical strength and is low in cost and easily producible for water treatment such as water treatment, beverage manufacturing, industrial water production, drainage treatment, etc., And the ratio of the major axis to the minor axis on the other surface is not less than 5: 1, and the ratio of the major axis to the minor axis on the other surface is not less than 1: 1 and less than 5: And has a fraction particle diameter of 0.2 mu m or more.

Thermoplastic resin composition and tire using the same

Laminated polyester film

The present invention provides a laminated polyester film which can be suitably used in the applications requiring good easy-slip property, anti-sticking property and antistatic property, for example, such as members constituting liquid crystal displays. The laminated polyester film of the present invention comprises a polyester film, a coating layer formed on one surface of the polyester film which comprises a resin and an antistatic agent but comprises substantially no particles, and has a variation in height of not less than 0.04 µm as measured over the coating layer, and a coating layer formed on the other surface of the polyester film which comprises a resin.

Laminate having moisture barrier properties

본 발명의 수분 배리어성 적층체는, 흡습제가 분산되어 있는 수분 트랩층(1)을 갖고 있으며, 상기 흡습제가, 상대 습도 80％에서의 흡습량 Ax와 상대 습도 30％에서의 흡습량 Ay와의 비(Ax/Ay)가 3 이상이 되는 흡습 특성을 갖고 있는 동시에, 상기 수분 트랩층이 2개의 무기 배리어층(3a, 3b)의 사이에 위치하고 있는 것을 특징으로 한다. 이 수분 배리어성 적층체에서는, 장기간에 걸쳐 수분에 대한 배리어성이 발휘된다. The water-impermeable laminate of the present invention has the moisture trap layer (1) in which the moisture absorber is dispersed, and the ratio of the moisture absorber Ax at the relative humidity of 80% to the moisture absorber Ay at the relative humidity of 30% (Ax / Ay) is 3 or more, and the moisture trap layer is located between the two inorganic barrier layers (3a, 3b). In this moisture barrier laminate, barrier properties against moisture are exhibited over a long period of time.

Resin composition

Microporous polymer membrane modified by water-soluble polymer, methods of its production and application

FIELD: process engineering. SUBSTANCE: invention relates to cellular materials. Microporous olefin membrane modified by water-soluble polymer is produced by copolymerisation of the mix composed of 100 parts of water-soluble polymer, 30-500 parts of hydrophobia monomer, 0-200 parts of hydrophilic monomer and 1-5 parts of initiator to make colloidal polymer emulsion. 0-100% of inorganic filler and 20-100% of plasticiser are added to emulsion, at 100%-content of dry substance in said emulsion, to make suspension. Suspension is applied on one or two surfaces of said membrane and dried. EFFECT: heat-resistant membrane with low heat setting. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 470 700 (13) C2 (51) МПК B01D C08J C08L H01M H01G 71/26 (2006.01) 7/04 (2006.01) 23/00 (2006.01) 2/16 (2006.01) 9/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011106298/05, 16.09.2009 (24) Дата начала отсчета срока действия патента: 16.09.2009 (45) Опубликовано: 27.12.2012 Бюл. № 36 (73) Патентообладатель(и): ЧАНЧЖОУ ЧЖУНКЭ ЛАЙФАН ПАУЭР ДИВЕЛОПМЕНТ КО., ЛТД. (CN) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.07.2011 2 4 7 0 7 0 0 R U (87) Публикация заявки РСТ: WO 2010/069189 (24.06.2010) C 2 C 2 (86) Заявка PCT: CN 2009/073955 (16.09.2009) Адрес для переписки: 191186, Санкт-Петербург, а/я 230, "АРСПАТЕНТ", пат. пов. В.В.Дощечкиной, рег.№ 869 (54) МИКРОПОРИСТАЯ ПОЛИМЕРНАЯ МЕМБРАНА, МОДИФИЦИРОВАННАЯ ВОДОРАСТВОРИМЫМ ПОЛИМЕРОМ, СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ И ПРИМЕНЕНИЕ (57) Реферат: Изобретение относится к мембранным материалам. Микропористую полиолефиновую мембрану, модифицированную водорастворимым полимером, получают путем сополимеризации смеси из 100 частей водорастворимого полимера, 30-500 частей гидрофобного мономера, 0-200 частей гидрофильного мономера и 1-5 частей инициатора с образованием коллоидной полимерной эмульсии. В эмульсию добавляют 0-100% неорганического наполнителя и 20-100% пластфикатора, ...

A PROCEDURE FOR THE PREPARATION OF PARTICLES OF POLYMERS AND PARTICLES OF POLYMER OBTAINED BY SUCH PROCEDURE

Se refiere a un procedimiento para la preparación de partículas de polímero que contienen el polímero de un monómero de vinilareno; dichoprocedimiento comprende: a) la mezcla de un polímero polar capaz de absorber, como mínimo 0,5 g. deag ua por gramo de polímero polar seco, con un monómerode vinilareno; b) la prepolimerización del monómero de vinilareno en la mezcla así obtenida hasta un grado de polimerización comprendido entre el 15 yel 50% a fin de obtener una masaprepoli merizada; c) la suspensión de la masa prepolimerizada en un medio acuoso para producir partículas suspendidas; y d)la polimerización de las partículas suspendidas para completar la conversión del monómero. También se refiere apartículas de polí mero y artículosalveolares obtenibles con dicho procedimiento It refers to a process for the preparation of polymer particles containing the polymer of a vinylarene monomer; This procedure comprises: a) the mixture of a polar polymer capable of absorbing, at least 0.5 g. deag ua per gram of dry polar polymer, with a vinylrene monomer; b) prepolymerizing the vinylarene monomer in the mixture thus obtained to a degree of polymerization of between 15 and 50% in order to obtain a merized prepoly mass; c) suspension of the prepolymerized mass in an aqueous medium to produce suspended particles; and d) polymerization of the suspended particles to complete the conversion of the monomer. It also refers to polymer particles and honeycomb articles obtainable with said procedure.

Aqueous polyolefin dispersion

The invention relates to an aqueous polyolefin dispersion comprising from 50 to 100 wt.% of a aqueous dispersion A comprising the following ingredients: from 30 to 90 wt.% of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid, from 10 to 70 wt.% of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and from 0 - 15 wt.% of additive from 0 to 50 wt.% of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A wherein the wt.% of A and B is based on the solid content of the whole aqueous polyolefin dispersion and the wt% of the ingredients of dispersion A is based on the solid content of dispersion A, the sum of the wt.% of ingredients i to iii of dispersion A is 100%.

Aqueous polyolefin dispersion

The invention relates to an aqueous polyolefin dispersion comprising from 50 to 100 wt.% of a aqueous dispersion A comprising the following ingredients: from 30 to 90 wt.% of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid, from 10 to 70 wt.% of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and from 0 - 15 wt.% of additive from 0 to 50 wt.% of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A wherein the wt.% of A and B is based on the solid content of the whole aqueous polyolefin dispersion and the wt% of the ingredients of dispersion A is based on the solid content of dispersion A, the sum of the wt.% of ingredients i to iii of dispersion A is 100%.

Graphene/carbon nanotube master batch easy to disperse in PVC (polyvinyl chloride), and preparation method and application thereof

本发明公开了一种PVC中易于分散的石墨烯/碳纳米管母粒及其制法和应用。用于制备PVC中易于分散的石墨烯/碳纳米管母粒的组合物，包括按重量份计的如下组分：石墨烯与碳纳米管100重量份、氧化聚乙烯蜡15～50重量份、EBS蜡15～50重量份、聚乙烯吡咯烷酮5～20重量份、油酸二乙醇酰胺5～20重量份、碳酸钙1～10重量份、硬脂酸1～5重量份。发明实施例提供石墨烯/碳纳米管母粒能极大地提高了石墨烯和碳纳米管在PVC中的分散性，降低了石墨烯用量，提高了PVC制品的力学性能、导电性、导热性和阻燃性。

A kind of electrostatic prevention suction sheet and preparation method thereof

本发明公开了一种防静电吸塑胶片及其制备方法，属于吸塑胶片加工技术领域，一种防静电吸塑胶片，包括芯层以及分别设于芯层两侧的防静电层；所述芯层由瓶级PET聚酯切片制得；所述防静电层由防静电色母粒制得；所述防静电色母粒由包含以下重量份的原料制得：聚对苯二甲酸丁二醇酯30‑40份、防静电剂1‑2份、分散剂3‑5份、相容剂1‑2份、钙锌稳定剂1‑2份以及颜料30‑40份。本发明通过设于芯层两侧的防静电层，可以起到优异的防静电效果以及防静电耐久性，并且使制得的吸塑胶片还具有优异的力学性能。

Biodegradable water seepage mulching film capable of slowly releasing fertilizer and preparation method thereof

本发明公开了一种可缓释施肥生物降解渗水地膜及其制备方法，可缓释施肥生物降解渗水地膜，由PBAT、PPC、亲水剂、扩链剂、润滑剂、滑石粉、天然无机磷肥构成；以重量百分比计，PBAT为40～80份，PPC为10～30份，亲水剂为0.1～0.5份，扩链剂为0.1～0.5份，润滑剂为0.1～0.5份，滑石粉为2～10份，天然无机磷肥为2～15份。本发明赋予地膜的渗水和缓释施肥功能，不仅保留了传统地膜的保温、保湿功能，还可对膜内环境进行适当调温、调湿、调气；同时在生物降解过程中，所携带的无机磷肥随地膜的降解可不断向土壤中缓慢释放，为土壤增加肥力，不断促进农作物生长。

A Method for Fabrication of Porous fiber microstructure with various 3-dimensional Structures

본 발명은 3차원 다공성 섬유 마이크로 구조체(fibrous microstructure)의 제조방법 및 이를 통해서 제작된 다양한 3차원 다공성 섬유 마이크로 구조체, 이를 포함하는 생물학적 마커의 검출장치 및 약물 전달 시스템에 관한 것이다. 본 발명의 방법으로 제작되는 3차원 다공성 섬유 마이크로 구조체는 다공성 및 미세공들 사이 상호연결이 우수하며 높은 효율로 대상입자를 포집, 전달하므로 바이오 마커의 검출 및 약물전달을 비롯한 생물의학적 응용에 유용하게 적용될 수 있다. TECHNICAL FIELD The present invention relates to a method for producing a three-dimensional porous fiber microstructure and a variety of three-dimensional porous fiber microstructures manufactured through the method, an apparatus for detecting biological markers containing the same, and a drug delivery system. The three-dimensional porous fiber microstructure fabricated by the method of the present invention is excellent in interconnection between porous and micropores and is capable of collecting and delivering the target particles with high efficiency, which is useful for biomedical applications including detection of biomarkers and drug delivery Can be applied.

Method for preparing polyion film, polyion film and detection kit

本发明提供一种制备聚离子薄膜(尤其是具有不同表面形貌的聚离子薄膜)的方法以及由该方法制备的聚离子薄膜，所述方法包括步骤：1)提供基板，在所述基板的表面上或在覆盖于所述基板的表面的锡纸的表面上涂抹第一润滑剂；(2)将聚离子薄膜的成膜液覆盖在涂有所述基板的表面上，涂覆均匀后，将涂有第二滑润剂的盖板覆盖在成膜液上；(3)使成膜液中的离子液体单体发生聚合反应，形成聚离子薄膜；(4)将所述聚离子薄膜分离，清洗后即得聚离子薄膜。本发明的制备方法能够制备出具有不同表面形貌的聚离子薄膜，成本低、易于规模化生产，为聚离子薄膜在传感器、医疗检测等多个领域的应用提供有力保障。本发明还提供一种检测试剂盒。

N-Vinyl lactam cross-linked polymer, cosmetic, ink absorbent and absorbent composite

本発明は、吸液能力に優れ、かつ、ゲル解砕を充分に行うことができる架橋重合体を提供することを目的とする。本発明は、Ｎ−ビニルラクタム系架橋重合体であって、該Ｎ−ビニルラクタム系架橋重合体は、Ｎ−ビニルラクタム系単量体由来の構造単位とシアヌル酸トリアリル由来の構造単位とを有し、該シアヌル酸トリアリル由来の構造単位の割合が、全構造単位１００モル％に対して０．１２〜０．４８モル％であることを特徴とするＮ−ビニルラクタム系架橋重合体である。 An object of the present invention is to provide a crosslinked polymer which is excellent in liquid absorption capacity and can be sufficiently subjected to gel disintegration. The present invention is an N-vinyl lactam cross-linked polymer, wherein the N-vinyl lactam cross-linked polymer has a structural unit derived from an N-vinyl lactam monomer and a structural unit derived from triallyl cyanurate. And the proportion of structural units derived from the triallyl cyanurate is 0.12 to 0.48 mol% with respect to 100 mol% of all structural units.

Laminated polyester film

양호한 이활성, 스티킹 방지성, 대전방지성을 갖는 것이 요구되는 용도인, 예컨대 액정 디스플레이를 구성하는 부재 등에 있어서 아주 적합하게 이용할 수 있는 적층 폴리에스테르 필름을 제공한다. 폴리에스테르 필름의 한쪽 면에, 수지 및 대전방지제를 함유하고, 실질적으로 입자를 함유하지 않는 도포층을 갖고, 당해 도포층의 고저차가 0.04㎛ 이상이며, 또 다른 한족의 폴리에스테르 필름 면에 수지를 함유하는 도포층을 갖는 적층 폴리에스테르 필름.

Laminated polyester film

양호한 이활성, 스티킹 방지성, 대전방지성을 갖는 것이 요구되는 용도인, 예컨대 액정 디스플레이를 구성하는 부재 등에 있어서 아주 적합하게 이용할 수 있는 적층 폴리에스테르 필름을 제공한다. 폴리에스테르 필름의 한쪽 면에, 수지 및 대전방지제를 함유하고, 실질적으로 입자를 함유하지 않는 도포층을 갖고, 당해 도포층의 고저차가 0.04㎛ 이상이며, 또 다른 한족의 폴리에스테르 필름 면에 수지를 함유하는 도포층을 갖는 적층 폴리에스테르 필름. A laminated polyester film which can be suitably used in, for example, a member constituting a liquid crystal display, which is a use requiring good lyophobicity, anti-sticking property and antistatic property, is provided. Wherein the polyester film has a coating layer containing a resin and an antistatic agent and substantially not containing particles, the difference in height of the coating layer is 0.04 占 퐉 or more, and the resin of the other polyester film By weight based on the total weight of the polyester film.

Organic resin laminate, methods of making and using the same, and articles comprising the same

유기 수지 기판 및 그 위에 다층 코팅 시스템을 포함하는 유기 수지 라미네이트는 내후성 및 내손상성을 가진다. 상기 다층 코팅 시스템은 오르가노실리콘 화합물의 플라즈마 중합으로부터 형성되는 경질 필름인 최외곽층(I) 및 무기 산화물 나노입자 및 비닐 코폴리머를 포함하는 복합 코팅 조성물(2)의 경화 필름인 중간층(II)을 포함한다. Organic resin laminates, including organic resin substrates and multilayer coating systems thereon, have weatherability and scratch resistance. The multilayer coating system comprises an outermost layer (I) which is a hard film formed from the plasma polymerization of an organosilicon compound and an intermediate layer (II) which is a cured film of the composite coating composition (2) comprising inorganic oxide nanoparticles and a vinyl copolymer. .

A kind of multilayer low gloss black polyamide thin film preparation method

本发明为一种多层低光泽黑色聚酰亚胺薄膜制备方法，主要步骤:Ⅰ、制备聚酰胺酸膜；Ⅱ、制备黑色共混聚酰胺酸树脂溶液；Ⅲ、将黑色共混聚酰胺酸树脂溶液均匀涂布于聚酰胺酸膜的上和/或下表面，加热固化，得到多层黑色聚酰胺酸膜；Ⅳ、双向拉伸、亚胺化和定型处理，得多层低光泽黑色聚酰亚胺薄膜。其中步骤Ⅱ包括制备聚酰胺酸树脂溶液、黑色浆料和消光剂分散液，三者加团聚剂共混，低温搅拌消泡，并经预热团聚处理。本发明的黑色颜料和消光剂平均粒径0.01～0.8μm，且在聚酰胺酸树脂缩聚合成过程中添加团聚剂，所得多层薄膜透光率、光泽度和电学性能、物理力学特性均有明显改善。

A kind of light-cured resin and hydrophilic lubrication coating and preparation method

本发明公开了一种光固化树脂及亲水润滑涂层与制备方法。本发明采用可聚合二苯甲酮类光引发剂与乙烯基吡咯烷酮单体在丙烯酰胺类交联剂的作用下交联共聚的方法制备光固化树脂，由该树脂复配得到的光固化亲水润滑涂层。克服了小分子光引发剂在涂层中的残留、挥发、迁移等缺点，具有优异的生物安全性和相容性，适用于医疗领域。本发明的亲水润滑涂层存在交联结构，在医用导管表面不仅附着力好，而且遇水后具有优异的润滑性，降低了医用导管表面的摩擦系数，减少了对人体组织的伤害以及血液中大分子的粘附。本发明的亲水润滑涂层使用光固化的方法应用在医用导管上，与传统固化方式相比，固化时间大大缩短，从而使生产效率大大提高。

Method for minimizing the deformed beads during producing expandable polystyrene beads containing graphite

본 발명은 흑연을 함유한 발포성 폴리스티렌 입자 제조시 변형입자를 최소화하는 중합 방법에 관한 것이다. (1) 스티렌계 수지에 흑연을 혼합 압출하여 현탁 가능하고 균일한 입자의 펠렛을 얻는 단계, (2) 흑연을 함유한 펠렛을 물, 분산제와 함께 반응기에 투입하여 분산을 유지시키는 단계, (3) 스티렌 단량체에 개시제, 난연제를 용해 후 계면활성제 또는 유기분산제를 병용하여 물과 에멀젼시켜 반응기 내로 서서히 연첨하면서 시드중합을 실시하는 동시에 발포제를 투입하여 함침하는 단계로 구성되어 있다. 이러한 방법에 의해 얻어진 흑연을 함유한 발포성 폴리스티렌 입자는 최종 중합품 내 L/D가 0.5 미만인 길쭉한 변형입자를 최소화하여 품질 안정화 및 정품수율 증대를 통한 경제적인 효과를 얻을 수 있다. The present invention relates to a polymerization method for minimizing strained particles in the production of expandable polystyrene particles containing graphite. (1) mixing and extruding graphite into a styrene resin to obtain pellets of suspended and uniform particles, (2) adding pellets containing graphite to a reactor together with water and a dispersant to maintain dispersion, (3 ) After the initiator and flame retardant are dissolved in the styrene monomer, the surfactant or organic dispersant is used together to emulsify it with water, and it is gradually added into the reactor, followed by seed polymerization while impregnating with a blowing agent. The expanded polystyrene particles containing graphite obtained by this method can obtain economic effects through minimizing elongated deformed particles having an L / D of less than 0.5 in the final polymerized product and stabilizing quality and increasing genuine yield.

Preparation method and application of through hole phase transfer type IPMC (Ionic Polymer Metal composite) with PVDF (polyvinylidene fluoride)/PVP (polyvinyl pyrrolidone)/IL (IL) as base film

本发明公开了一种高性能的以PVDF/PVP/IL为基底膜的通孔相转移型IPMC的制备方法及应用，由基底膜、固定在基底膜两侧的碳纳米管膜电极、外接的电信号输入系统组成，孔相转移型IPMC具备高度的多孔度，PVDF/PVP/IL基底膜是经过相转移工艺和次氯酸除PVP双重处理得到的，因此空隙率很大，使IPMC吸取更多的离子液，有利于维持IPMC长时间的稳定驱动；通孔相转移型IPMC具备疏水性，所以通过离子液（IL）驱动得到的IPMC驱动更加稳定。通孔相转移型IPMC具有大量的通道，提高材料内部的离子迁移量，在材料内部形成更大的压力差和离子流，有利于电致动器形成更大的驱动，同时也提供更大的力学性能。

Use of polysulfone solutions in N-acyl morpholines for the production of UF membranes

本发明涉及包含砜聚合物、水溶性聚合物和式I的N‑酰基吗啉的溶液，其中R 1 是氢原子或C 1 ‑C 3 烷基。

Polymeric composition for hydrophilic separation membrane containing sulfonated inorganic particles

본 발명은 술폰화된 무기 입자, 좋게는 술폰화된 이산화티탄을 포함하는 친수성 분리막 제조용 고분자 조성물 및 이로부터 제조된 친수성 분리막에 관한 것으로, 본 발명의 친수성 분리막은 수투과도(water flux)가 우수하며 방오성(antifouling)이 뛰어난 장점이 있다. The present invention relates to a polymer composition for preparing a hydrophilic separation membrane containing a sulfonated inorganic particle, preferably a sulfonated titanium dioxide, and a hydrophilic separation membrane produced therefrom. The hydrophilic separation membrane of the present invention has excellent water flux Antifouling is an excellent advantage.

Coating liquid

本发明提供一种涂布液，是包含含羟基树脂、无机层状化合物和液状介质的涂布液，5℃的涂布液的利用蔡恩杯测定的流出时间(B)与24℃的涂布液的利用蔡恩杯测定的流出时间(A)的比(流出时间(B)/流出时间(A))为1.40以下。

Surface modification method and surface modified elastic body

Polymer composition

本发明涉及新的高体积溶胀水凝胶，其包括多个孔，所述孔由任选地与一种或多种生物相容性聚合物在一起的、以及任选地与一种或多种增塑剂在一起的、众多一种或多种亲水聚合物的互穿网络和/或半互穿网络和/或简单的交联排列限定，其特征在于，至少一些孔至少部分地塌陷和/或变平，并且进一步的特征在于，限定塌陷和/或变平的孔的互穿网络和/或半互穿网络和/或交联排列基本上是未破坏的。本发明还涉及用于制备这种水凝胶的方法，以及它们作为食欲抑制剂的用途。

A kind of polymer powder surface treatment method

本发明涉及一种聚合物粉末的表面处理，以聚合物粉末为原料，包括以下步骤：步骤1：将水溶性聚合物、水相介质、消泡剂、任选的胺基环糊精衍生物加热混合均匀，得到处理溶液，所述水溶性聚合物的数均分子量为20000g/mol～150000g/mol；步骤2：将聚合物粉末、处理溶液两者混合处理，混合均匀，获得含有粉末的固液混合物；步骤3：将步骤2所得混合物进行固液分离、干燥，得到处理后的热塑性聚合物粉末。通过水溶性聚合物对粉末高表面能区域的吸附，降低粉末粗糙度，无需高温高压处理，方法简单安全。处理后的粉末可用于粉末涂料、3D打印、化妆品、添加剂、医药等领域。

Hydrophilizing agent, composition containing hydrophilizing agent, and porous polymer membrane

提供一种亲水化剂，其通过加入至接触角大的聚合物中，从而能够形成接触角小的高分子多孔质膜，而且能够形成即使在与次氯酸钠水溶液接触168小时后也可维持小的接触角的高分子多孔质膜。一种亲水化剂，其特征在于，其包含接触角为50°以下、且重量减少率为7％以下的含氟聚合物。

Increased stiffness center optic in soft contact lenses for astigmatism correction

A molded contact lens comprising a stiffer optic zone relative to the peripheral zone of the contact lens provides an optical element for correcting astigmatism without the need for or substantially minimizing the need for the correction of rotational misalignment. The higher elastic modulus optic zone vaults over the cornea thereby allowing a tear lens to form. The tear lens follows or assumes the shape of the back surface of the contact lens. The combination of the tear lens and the optical zone provide an optical element for correction of refractive error.

Anti-static Coating Composition and Anti-static Polyester Film Using the Same

본 발명에서는 양이온성 공중합 고분자 수지 100 중량부에 대하여; 불소수지 1~10중량부; 및 계면활성제 0.05~3중량부를 포함하는 대전방지 코팅 조성물 및 그를 이용한 대전방지 폴리에스테르 필름을 제공한다. 본 발명의 대전방지 코팅 조성물을 이용하여 제조되는 대전방지 폴리에스테르 필름은 표면저항 10 7 내지 10 9 Ω/sq의 안정적인 대전방지 성능을 구현하면서도, 10~80%의 상대습도 범위에서 표면저항의 지수값 변화가 1 미만으로 대전방지성의 습도의존성이 현저하게 적다. 또한, 상기 폴리에스테르 필름은 점착 테이프와의 박리력, 내용제성, 도막성능 및 방오성능이 향상된 것이다. In the present invention with respect to 100 parts by weight of the cationic copolymer polymer resin; 1 to 10 parts by weight of fluororesin; And it provides an antistatic coating composition and an antistatic polyester film using the same containing 0.05 to 3 parts by weight of the surfactant. The antistatic polyester film prepared by using the antistatic coating composition of the present invention realizes stable antistatic performance of surface resistance 10 7 to 10 9 Ω / sq, while providing an index of surface resistance in a relative humidity range of 10 to 80%. As the value change is less than 1, the antistatic humidity dependency is remarkably small. In addition, the polyester film is to improve the peel force, solvent resistance, coating film performance and antifouling performance with the adhesive tape.

Method of applying a hydrophilic coating to a polymeric substrate and articles prepared thereby

A method to impart increased lubricity to the surface of a polymeric substrate includes contacting the substrate with a solution of a hydrophilic polymer in a solvent and heating the substrate to evaporate the solvent. The substrate retains a coating of the hydrophilic polymer, which, when dry, has about the same lubricity as the uncoated substrate. When wet, the coating becomes significantly more lubricious than when dry. The invention includes articles which have a lubricious surface when wet prepared by the method of the invention.

The modified method in surface is improved by using alkyl borane

本发明涉及一种将固体基底的表面改性的方法，包括用如下物质处理表面：(i)包含有机硼烷‑胺配合物和聚合物的溶液，以及随后(ii)可聚合化合物(本文称为“单体”)和任选地解封闭剂。

Microcellular polyester film

본 발명은 필름의 적어도 한 면에 1 ×10 12 Ω이하의 표면 저항을 갖는 코팅층을 갖고, 0.60 내지 1.35g/㎤의 밀도를 갖는 미세기포 함유 폴리에스테르에 관한 것이다. The present invention relates to a microbubble-containing polyester having a coating layer having a surface resistance of 1 × 10 12 Pa or less on at least one side of the film, and having a density of 0.60 to 1.35 g / cm 3.

A kind of high-adhesiveness aerogel dressing and preparation method thereof

本发明提供了一种高粘附性水凝胶敷料及其制备方法，包括以下步骤：（1）制备壳聚糖溶液；（2）制备海藻酸钙水溶液；（3）将明胶以用碳二亚胺和N‑羟基琥珀酰亚胺进行修饰，然后加入壳聚糖溶液、海藻酸钙水溶液反应，反应液透析浓缩后制得混合物A；（4）向混合物A中加入丙三醇、聚乙烯醇、聚乙二醇和聚乙烯吡咯烷酮，继续搅拌混合得到混合物B；（5）在搅拌的条件下向混合物B中加入光引发剂、银纳米粒子、氯化钙溶液，浇注至模具中，再在紫外光下辐照即制得促愈合水凝胶敷料。本发明制得的水凝胶具有良好的粘附性、高机械强度和优良的生物相容性。因此，其具有良好的应用前景。

A kind of solar energy backboard water radiating device

本发明属于太阳能背板技术领域，具体涉及一种太阳能背板水散热装置，以碳纳米管为导热材料，氨基硅树脂为粘合剂，聚乙烯吡咯烷酮为分散剂，辅以引发剂、发泡剂和固化剂形成粘稠固化液，并在模具中微波固化反应和恒温固化得到导热管，然后将第二引发剂和第二固化剂加入丙烯酸盐，微热条件下进行离心镀膜法，冷却后得到水散热装置。

Water-phase suspension granulation method for preparing gradient flame-retardant foamable polystyrene beads on basis of waste polystyrene materials and products of water-phase suspension granulation method

本发明属于废聚苯乙烯发泡材料高值化回收利用领域，具体涉及一种基于废聚苯乙烯材料制备梯度阻燃可发泡聚苯乙烯珠粒的水相悬浮造粒法及其产品。其以无机-有机梯度协同阻燃隔热体系、有机溶剂和废聚苯乙烯材料组成油相，以表面活性剂、无机-有机增效悬浮剂和去离子水组成水相分散介质，机械搅拌下，水相悬浮造粒使油相液滴稳定地悬浮分散在水相介质中，升温蒸出有机溶剂实现梯度阻燃聚苯乙烯珠粒的固化，经戊烷填充和发泡成型得到梯度阻燃聚苯乙烯保温板。本发明以废旧聚苯乙烯为原料，物理法回收并制备梯度阻燃可发泡聚苯乙烯珠粒，废物利用，同时提高其梯度阻燃性能和隔热效果，有机溶剂可循环使用，对环境友好，易于工业化生产。