Abstract: Disclosed are epoxy resins exhibiting a highly favorable combination of tensile strength and elongation with respect to prior art epoxy systems. The elastomeric epoxy resin systems of the invention are prepared utilizing a curing agent containing at least one monoprimary amine, and are particularly useful in applications such as, for example, castings, potting, composites, crack sealing, coatings, adhesives, roofing materials, flooring or reinforced membranes.

Abstract: A material comprising crosslinked polyrotaxanes which exhibits desired viscoelasticity, particularly stress-strain characteristics with a wide low-stress region, in spite of being free from solvent; and a process for production of the same. The material comprises a first polyrotaxane bearing first cyclic molecules and a second polyrotaxane bearing second cyclic molecules, and the first and second polyrotaxanes are crosslinked via the first and second cyclic molecules. The material is free from solvent and exhibits a stress of 2.0 MPa or below at 50% strain.

Abstract: A polymer includes a linker represented by Formula I ([OR1OCH2OR2OCH2]m), where R1 and R2 are, independently, alkylene, alkenylene, arylene, heteroarylene, or alkylarylalkylene; and the polymer has a weight average molecular weight of about 500 g/mol to about 2,000,000 g/mol, and m is 1 to 1000.

Abstract: A composition for a semiconductive rubber, comprising an epichlorohydrin-based rubber (a), an ethylene oxide-modified (meth)acrylate (b), and at least one kind of a crosslinking agent (c) selected from the group consisting of a sulfur-based crosslinking agent, a quinoxaline-based crosslinking agent and a triazine-based crosslinking agent.

Abstract: An fluorinated polyester compound is disclosed. The fluorinated polyester compound can be made by combining ingredients comprising a hydroxyl terminated polyphenyl ether; a carboxylic acid terminated perfluoropolyether; an acid catalyst; and a solvent. A coating solution comprising the fluorinated polyester compound and a method of coating a substrate therewith are also disclosed.

Abstract: A simple procedure is provided by which the hydroxyl termini of poly(ethylene oxide) can be appended with functional groups to a useful extent by reaction and precipitation. The polymer is dissolved in warmed toluene, treated with an excess of organic base and somewhat less of an excess of a reactive acylating reagent, reacted for several hours, then precipitated in isopropanol so that the product can be isolated as a solid, and salt byproducts are washed away. This procedure enables functionalization of the polymer while not requiring laborious purification steps such as solvent-solvent extraction or dialysis to remove undesirable side products.

Abstract: The present invention relates to a stable aqueous dispersion of thermoplastic polymer particles imbibed with a thermosettable compound. The polymer particles are characterized by having a sufficient concentration of anti-agglomerating functional groups to stabilize the latex against agglomeration. The dispersion is useful as one part of a two-pack formulation.

Abstract: A polyesteracetal contains —[C(O)(CR3R4)x(C(O))yOCR1R2O]— repeating unit where x is 0 to 5, y is 0 or 1, and R1, R2, R3 and R4 are independently H, C1 to C24 alkyl, C2 to C24 alkenyl, C6 to C14 aryl, C7 to C24 alkylaryl, heteroatom interrupted C1 to C24 alkyl, heteroatom interrupted C2 to C24 alkenyl, heteroatom interrupted C4 to C14 aryl, or heteroatom interrupted C5 to C24 alkylaryl, and wherein on average x>1 or y>0. The polyesteracetal can be a homopolymer or copolymer. A method of preparing the polyesteracetal comprises a ring-opening polymerization of a cyclic esteracetal monomer using a metal alkolate, metal alkoxide or metal alkyl initiator.

Abstract: The present invention relates to a conjugate of a protein or peptide with a polyethylene glycol derivative having catechol, wherein the protein or peptide is mono-PEGylated at the N-terminal with the polyethylene glycol derivative, and to a preparation method thereof. According to the invention, the catechol-PEG derivative can be site-specifically conjugated with the N-terminal amine group of a protein or peptide, so that a homogeneous polyethylene glycol-protein or -peptide conjugate can be obtained in high yield. Unlike a prior art conjugate, the conjugate obtained according to the invention allows the decrease in the activity of the protein to be minimized without chemically modifying the protein, and thus the conjugate has an excellent pharmacological effect. Also, because the conjugate is homogeneous, the process for preparing the conjugate can be simplified. Moreover, the conjugate has uniform biological efficacy in vivo and shows strong resistance to hydrolysis and thus a long in vivo duration time.

Abstract: A polymer comprises units derived from ethylene and poly(alkoxide) the polymer having at least 0.15 units of amyl groups per 1000 carbon atoms as determined by 13C Nuclear Magnetic Resonance (NMR).

Abstract: A method of preparing a multiarm polymer includes reacting a branched polyol with one or more functionalizing reagents to effect substitution of an ionizable functional group or a protected ionizable functional group, Y, to form a mixture comprising (i) unsubstituted branched polyol containing no Y groups; (ii) a monosubstituted polyol comprising one Y group, and (iii) a multisubstituted polyol (e.g., a disubstituted polyol comprising two Y groups); followed by purifying the mixture to separate the monosubstituted polyol from other species Thereafter, a water-soluble and non-peptidic polymer segment is attached to the monosubstituted branched polyol at the site of at least one of the hydroxyl groups. The invention also provides purified monosubstituted branched polyols and multiarm polymers prepared by the method and polyol precursors for use in the method.

Abstract: Disclosed is a process for preparing polymer conjugates of agricultural, therapeutic, and food additive compounds using Mitsunobu conditions.

Abstract: The invention provides a method comprising the steps of providing a poly(ethylene glycol) having one terminal hydroxyl group; reacting the terminal hydroxyl group of the poly(ethylene glycol) with di(1-benzotriazolyl)carbonate to form a 1-benzotriazolylcarbonate ester of the poly(ethylene glycol); reacting the 1-benzotriazolylcarbonate ester of the poly(ethylene glycol) with an amino acid to form an amino acid derivative; and reacting the amino acid derivative with a biologically active agent under conditions to form a polymer-active agent conjugate.

Abstract: The present invention relates to a method for preparing macromolecular species with a modified surface, comprising a step (e) in which macromolecular species (M), initially carrying —OH and/or —SH functions, are brought into contact with: a catalyst (C) carrying at least one conjugated guanidine function; and reactive species (E), comprising reactive groups including: (i) at least one group including an a,b-unsaturated carbonyl group C?C—C?O and/or an a,b-unsaturated thiocarbonyl group C?C—C?S; and/or (ii) at least one heterocyclic group comprising from 3 to 5 ring members, said group being selected from cyclic ethers, cyclic thioethers and aziridine rings; and/or (iii) at least one group selected from isocyanate —N?C?O or thioisocyanate —N?C?S groups, and trivalent groups of formula >C?CZ—, where Z is an electron-withdrawing group. The invention also relates to the macromolecular species with a modified surface that are obtained in this context.

Abstract: Disclosed is a vulcanizable rubber composition for use in an air spring, which has excellent low-temperature behavior, and a vulcanized rubber formed product for air springs, which is obtained by vulcanization of the rubber composition. Also disclosed is a vulcanizable rubber composition for use in an air spring, comprising: an epihalohydrin-based copolymer comprising 50 to 70 mol % of a constituent unit derived from ethylene oxide and/or propylene oxide, 20 to 50 mol % of a constituent unit derived from epihalohydrin, and 0 to 15 mol % of a constituent unit derived from allyl glycidyl ether; a vulcanizing agent; a plasticizer; and an acid acceptor, and a rubber formed product for air springs, which is obtained by vulcanization of the composition.

Abstract: A composition, including a liquid crystal polymer or oligomer having a terminal hydroxyl group, and a cross-linking agent including a bismaleimide compound, an epoxy resin or a combination thereof, wherein the liquid crystal polymer or oligomer is represented by Formula 1: Z1—(R1)m—(R2)n—Z2??(1), wherein R1 is represented by Formula 2: —X1—Ar1—Y1—??(2), wherein X1 and Y1 are each independently selected from the group consisting of O, CO and NR?, in which R? is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, and a substituted or unsubstituted C6-C30 aryl group, and Ar1 includes at least one divalent aromatic or alicyclic organic group selected from the group consisting of Formula 3:

Abstract: A thermosetting fluoropolyether adhesive composition is provided. This composition cures at lower than 100° C., and the cured product exhibits good adhesion to various substrates and excellent adhesion durability at a temperature of up to 150° C. A method for adhering the composition to the substrate is also provided.

Abstract: Provided herein are polymeric ?-hydroxy aldehyde or ?-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the ?-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

Abstract: The present invention provides a heat-curable resin composition having excellent fluidity and realizing moisture-resistance reliability suitable for recent electronic component-related materials and high flame retardancy in a halogen-free state for harmony with the environment, a cured product thereof, a semiconductor encapsulating material using the composition, and a phenol resin and epoxy resin which give these performances. The heat-curable resin composition includes, as essential components, an epoxy resin (A) and a phenol resin (B), the phenol resin (B) having a phenol resin structure having, as a basic skeleton, a structure in which a plurality of phenolic hydroxyl group-containing aromatic skeletons (ph) are bonded to each other through an alkylidene group or a methylene group having an aromatic hydrocarbon structure, and an aromatic nucleus of the phenol resin structure has a naphthylmethyl group or an anthrylmethyl group.

Abstract: A composition comprises a fluorine-containing aromatic polymer, an epoxy compound and an initiator. Its use as film, laminate with polyimide or copper foils, copper-clad laminated board and adhesive film. The fluorine-containing aromatic polymer is preferably a fluorine-containing aryl ether polymer. The initiator is preferably a cationic initiator.

Abstract: Methods and apparatus for the recovery and purification of solid salt compositions from an organic liquid containing epoxy resin and at least one of epihalohydrin and solvent to obtain purified salt and/or brine compositions that may be useful in industrial processes.

Abstract: Materials and Methods are provided for fabricating microfluidic devices. The materials include low surface energy fluoropolymer compositions having multiple cure functional groups. The materials can include multiple photocurable and/or thermal-curable functional groups such that laminate devices can be fabricated. The materials also substantially do not swell in the presence of hydrocarbon solvents.

Abstract: This invention relates to binder mixtures comprising mass fractions of from 70% to 98% of chain-extended epoxy amine adducts A and from 2% to 30% of carboxy functional polyesters B that contain a limited amount of aromatic constituents in mass fractions of up to 15% and have an acid number of from 4 mg/g to 50 mg/g, a method of making these binder mixtures, and a method of use thereof in coatings for metals, wood, cardboard, plaster, and concrete.

Abstract: The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.

Abstract: A block or graft copolymer including a thermoplastic resin segment and as an aliphatic polyester segment is provided. The copolymer can be used as a compatibilizer for a resin alloy comprising polylactic acid, which can reduce the consumption of petroleum raw materials.

Abstract: An underfill formulation includes a solvent (110), a plurality of amphiphilic block copolymers (120) in the solvent, and an adhesion promoter (130) in the solvent. Groups of the plurality of amphiphilic block copolymers form a plurality of micelles (140) in the solvent, with the micelles including a core (141) and a shell (142) surrounding the core, and the adhesion promoter is in the core of at least some of the plurality of micelles.

Abstract: A method for preparing high-purity polyethyleneglycol-alkylenealdehydes and derivatives thereof is provided.

Abstract: A composition useful for imparting durable stain repellence and soil release properties to textile substrates, a method for treating textile substrates using such composition, and the textile substrates obtained therefrom. The composition comprises: (A) at least one fluorinated ionisable polyurethane polymer (PUR) being free from perfluoroalkyl chains and comprising at least one fluorinated block comprising a fluoropolyoxyalkene chain, and at least one functional block comprising an hydrocarbon chain (RHC) having from 2 to 14 carbon atoms, said chain (RHC) comprising at least one ionisable group, said blocks being linked by urethane moieties of formula (I), wherein E is a divalent hydrocarbon carbon group; (B) at least one fluorocarbon polymer (F) comprising at least one perfluoroalkyl chain (Rf) linked by one or more ester moiety of formula (II) and/or urethane moiety of formula (III) and/or urea moiety of formula (IV); and (C) at least one crosslinking agent.

Abstract: The invention relates to a method for the fluid-phase synthesis of a polymer formed from n monomers.

Abstract: The present invention provides, among other things, segmented, degradable polymeric reagents suitable for reaction with biologically active agents to form conjugates, the polymeric reagents comprising one or more polymer chains divided or separated by one or more degradable linkages into polymer segments having a molecular weight suitable for renal clearance. The polymeric reagents can have a substantially linear structure, a branched structure, or a multiarm structure. Each structure includes one or more linkages capable of degradation in vivo.

Abstract: The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.

Abstract: The invention provides a method comprising the steps of (i) reacting a water-soluble and non-peptidic polymer having two or more terminal hydroxyl groups with di(1-benzotriazolyl)carbonate to form a water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups; and (ii) reacting the water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups with a water-soluble and non-peptidic polymer having three or more primary amino groups under conditions effective to form a cross-linked polymer composition.

Abstract: Disclosed is a process for preparing polymer conjugates of agricultural, therapeutic, and food additive compounds using Mitsunobu conditions.

Abstract: Bioabsorbable macromer compositions are provided including a polymeric component possessing a lipid segment which enhances the affinity of the macromer composition to targeted tissue. In some embodiments, the polymeric component can be combined with a second component. The resulting bioabsorbable macromer composition can be employed as an adhesive or sealant for medical/surgical uses.

Abstract: A polymeric material comprised of (i) at least one random copolymer comprised of ethylene oxide and one or more other alkylene oxide(s) and (ii) at least one non-random polymer comprised of one or more poly(alkylene oxide)s has been discovered. Preferably, it is a polymer alloy. Alkylene oxide homo-polymers or block copolymers may be the non-random polymer. In a related discovery, an adhesive material can be made by suspending (a) particles in (b) a matrix of at least one poly(ethylene oxide) copolymer of ethylene oxide and propylene oxide, or a combination thereof. The handling characteristics may be adjusted for different utilities (e.g., from runny oil to hard wax). Applications include use as adhesive, cohesive, filler, lubricant, surfactant, or any combination thereof. In particular, the hard materials may be used for cleaning or waxing.

Abstract: Compositions are described that include a) from 15 weight percent to 60 weight percent of one or more random alkylene oxide interpolymers, each having a weight average molecular weight ranging from 250 g/mol to 2000 g/mol and comprising from 30 weight percent to 60 weight percent of polymer units derived from ethylene oxide; and b) from 40 weight percent to 85 weight percent of one or more alkylene oxide block interpolymers, each having a weight average molecular weight ranging from 1500 g/mol to 4000 g/mol and comprising from 40 weight percent to 90 weight percent propylene oxide blocks. The compositions have a first viscosity in the absence of water and a second viscosity that is at least 60 percent of the first viscosity when at least 10 weight percent water is present. Methods of lubricating surfaces, particularly, marine bearing surfaces with such compositions, are also described.

Abstract: The invention provides a system and method for treating an orthopedic condition using a hydrogel-forming composition, which forms a hydrogel in situ at a target location and at least bio-mechanically treats the condition. The invention also provides a hydrogel forming composition designed to form a hydrogel with desirable biocompatible and biomechanical properties. In some aspects the hydrogel is formed in a water-permeable casing, which is delivered to an orthopedic joint in a minimally invasive manner. In particular, the system and method can be used for intervertebral disc replacement or repair.

Abstract: It is an object of the present invention to provide an epoxy resin curing agent which has a favorable pot life and good storage stability as a curing agent for epoxy resins and from which an epoxy resin cured product having good water resistance and hardness is obtained through curing. The present invention is an epoxy resin curing agent containing a secondary or tertiary branched thiol compound having a substituent on a carbon atom at the ?-position to a thiol group, and is also an epoxy resin composition comprising a polyvalent epoxy compound and the epoxy resin curing agent.

Abstract: The present invention relates to the use of a quaternary ammonium complex comprising at least one non-cyclic amide as a modifier for a creping adhesive used on a creping cylinder, e.g., a Yankee dryer.

Abstract: Non-Small Cell Lung Carcinomas (NSCLCs) are treated with Gel Micro-Particles (GMPs) that passively accumulate in the lungs and contain Nano-Particles (NPs) combining one or more therapeutic agents that are cytotoxic to the NSCLC with one or more NSCLC active targeting ligands, as well as one or more other optional agents that increase cellular uptake, enhance the pro-apoptotic effect of the chemotherapeutic agent(s), and the like. NPs targeting other cancer cells are also disclosed, as well as NP-containing GMPs that reduce the occurrence of tumor metastasis.

Abstract: This invention relates to a self-crosslinking binder for coating compositions comprising an aqueously dispersed resinous component A having at least one carbonyl group of the ketone or aldehyde type per molecule, and a component B having at least two hydrazine or hydrazide groups per molecule, and at least one structural unit —NR1—NR2—CHR3—CHR4—NH—R5 (I) where the radicals R1, R2, R3 and R4 are each individually selected from the group consisting of a hydrogen radical, and a linear or branched alkyl radical having from 1 to 10 carbon atoms, R3 and R4 may additionally be selected from the group consisting of aryl and alkylaryl radicals having from 6 to 15 carbon atoms, and from oxy alkyl radicals with from 1 to 10 carbon atoms, where oxy groups may be inserted into the alkyl chain, or at the end of an alkyl chain, and R5 is selected from the group consisting of a hydrogen radical, alkyl radicals which may be linear, branched or cyclic and may have from 1 to 10 carbon atoms, and residues of the formula —(CH2)n—

Abstract: The invention relates to a copolymer of ethylene oxide or propylene oxide and at least one substituted oxirane bearing an ionic group. The copolymer is characterized in that its chain comprises repeat units —O—CH2—CH(—CH2—O—SO3?Li+)—, repeat units —O—CH2—CHR— in which R is H or CH3, optionally, repeat units —O—CH2—CH(—CH2R?)— in which R? is a functional group. x Uses: electrolyte in electrochemical, selective-membrane and reference-membrane devices.

Abstract: The present disclosure relates to crosslinked polymer compositions comprising an inclusion complex functionalized with one or more reactive groups and a polymer functionalized with one or more complimentary reactive groups.

Abstract: The invention describes families of compounds that utilize multihydroxyl phenyl groups to provide adhesive properties. Selection of the multihydroxy phenyl group along with linkers or linking groups and the linkages between the linkers or linking groups with polyalkylene oxides, provides materials that can be engineered to afford controllable curing time, biodegradation and/or swelling.

Abstract: A thermosetting resin composition and a prepreg or laminate using the same are provided. The thermosetting resin composition includes an epoxy resin and a curing agent, in which the curing agent is a dual-curing agent system formed with a multi-functional aromatic polyester curing agent in combination with a phenolphthalein benzoxazine phenol aldehyde or a poly(styrene-co-maleic anhydride). An organic or inorganic fiber reinforced material is impregnated with the thermosetting resin composition to form a prepreg, and the prepreg is bonded to a substrate with a metal foil disposed thereon, to form a laminate.

Abstract: The present invention relates to a polymer material with a functionalised surface and also to a method for in situ functionalisation of polymer materials. Furthermore, the invention comprises the use of the polymer materials.

Abstract: Provided are a method for producing a phosphorus-containing phenolic compound in which reactivity is considerably excellent in the reaction between a phosphorus-containing compound and an aromatic nucleus of a phenol; in the case of using a polyhydric phenol or a phenolic resin as the phenol, a novel phosphorus-containing phenolic compound that serves as a curing agent for an epoxy resin and imparts excellent heat resistance to a cured product; a curable resin composition containing the novel phosphorus-containing phenolic compound; a cured product of the curable resin composition; a printed wiring board; and a semiconductor sealing material. An aromatic aldehyde (a1) having an alkoxy group as a substituent on an aromatic nucleus is allowed to react with an organic phosphorus compound (a2) intramolecularly having a P—H group or a P—OH group. The resultant reaction product is then allowed to react with a phenol (a3).

Abstract: Materials and Methods are provided for fabricating microfluidic devices. The materials include low surface energy fluoropolymer compositions having multiple cure functional groups. The materials can include multiple photocurable and/or thermal-curable functional groups such that laminate devices can be fabricated. The materials also substantially do not swell in the presence of hydrocarbon solvents.

Abstract: Provided is an epoxy resin composition for fiber-reinforced composite materials, which serves as a matrix resin for a prepreg. This epoxy resin composition is improved in tackiness stability during storage, while maintaining mechanical characteristics. The epoxy resin composition for fiber-reinforced composite materials is characterized by containing 25 to 50 parts by weight of an amine curing agent (B) selected from aliphatic polyamines, alicyclic polyamines and aromatic polyamines, and 1 to 20 parts by weight of an organic acid dihydrazide compound (C) having a melting point of not less than 150° C., per 100 parts by weight of an epoxy resin (A).

Abstract: The present invention is directed to a method for preparing a cyclic guanidine comprising reacting (i) a guanidinium, (ii) a polyamine, and (iii) a weak acid. The present invention is also directed to a coating composition comprising the cyclic guanidine.