Abstract: A functionalized polyamide is prepared by reacting a thio acid with an amide monomer or a mixture of a diamine and a dicarboxylic acid. In the reaction, the amide monomer is preferably a lactam compound, the thio acid has a formula of HOOC-A-SH wherein A represents an alkylene group containing from 1 to 10 carbon atoms, the diamine is an aliphatic diamine and the dicarboxylic acid is a aliphatic dicarboxylic acid. The functionalized polyamide can be vulcanized directly with rubber, which results in the use of less dip for adhering the tire cord to the rubber.

Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.

Abstract: A coating film formed by curing of an epoxy resin composition containing at least an epoxy resin, an epoxy resin curing agent and a solvent, wherein the coating film contains the solvent in a ratio of 1% by mass or more and 20% by mass or less, and the epoxy resin curing agent is a reaction product of the following (A) and (B). (A) At least one selected from the group consisting of metaxylylenediamine and paraxylylenediamine. (B) At least one selected from the group consisting of an unsaturated carboxylic acid represented by the following formula (1) and a derivative thereof: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms, or an aryl group.

Abstract: Crosslinked polymers and their uses in electrochemical systems, for example, as electrolyte membrane, are described. More precisely, these crosslinked polymers are formed by the crosslinking of a random copolymer based on monomers of glycidyl methacrylate or acrylate and of poly(ethylene glycol) methyl acrylate or methacrylate with a volatile polyamine crosslinking agent.

Abstract: Provided is a polyphenylene ether resin composition having excellent heat aging resistance and fluidity. A polyphenylene ether includes at least one structural unit selected from chemical formulae (1), (2), and (3).

Abstract: A process for producing a viscous epoxy syrup from at least one liquid multifunctional epoxy, comprising the steps of: adding an initiator selected from the group consisting of electron-poor monoisocyanate, photoinitiator and thermal initiator to at least one liquid multifunctional epoxy; mixing the components; polymerizing the multifunctional epoxy such that the viscosity of the resulting epoxy syrup is at least twice as high, preferably at least four times as high and in particular at least ten times as high as the viscosity of the employed epoxy in the unreacted state makes it possible to produce epoxy adhesives having pressure-sensitive properties.

Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.

Abstract: The present invention relates to an alkoxysilylated epoxy compound, a composite exhibiting good heat resistance properties, low CTE and high glass transition temperature and not requiring a coupling agent, a composition including the same, a cured product formed of the composition, a use of the cured product, and a method of preparing the epoxy compound having alkoxysilyl group. An epoxy compound having an epoxy group and an alkoxysilyl group, a composition including the epoxy compound, a curing agent, a filler and/or a reaction catalyst, a cured product of the composition, and a use of the composition including an electronic part are provided. In a composite and/or cured product, the epoxy composition exhibits improved heat resistance properties, decreased CTE, and increased glass transition temperature or Tg-less. The cured product exhibits good flame retardant properties by the introduction of the alkoxysilyl group.

Abstract: There is provided herein a composition comprising (a) a mercapto-functional silicon compound having the general Formula (I): and a reactive resin containing at least one epoxy and/or (meth)acrylate group. There is also provided a silylated resin resulting from the reaction product of mercapto-functional silicon compound (a) and reactive resin contain at least one epoxy and/or (meth)acrylate groups.

Abstract: A polymer is provided. The polymer includes a first repeating unit represented by Formula (I) and a second repeating unit represented by Formula (II): wherein Y1 and Y2 are independently —H, —CH3, or —CH2CH3; n is an integer ranging from 1 to 25; and the molar ratio of the first repeating unit to the second repeating unit is from 5:95 to 15:45. A resin composition including the aforementioned polymer is also provided.

Abstract: There is provided a serum- or plasma-separating composition capable of maintaining stable blood separation performance over a prolonged period even if subjected to a sterilization step during production or to prolonged storage. The serum- or plasma-separating composition comprises a resin composition having fluidity at normal temperature, a silica fine powder, and an amide-based compound represented by the following formula (1): wherein R3 is an alkyl group having 1 to 4 carbon atoms; and R1 and R2 are independently a hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms.

Abstract: The present invention relates to a polymer composition comprising an epoxy resin and a multistage polymer. In particular the present invention it relates to polymer composition comprising an epoxy resin and a multistage polymer that can be used as a masterbatch. More particularly the present invention relates also to a process for preparing a polymer composition comprising an epoxy resin and a multistage polymer by spray drying or coagulation.

Abstract: A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-cis-cyclooctene, and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.

Abstract: A method for bonding composite substrates includes coupling a first co-cure prepreg layer having a first off-set amine to epoxide molar ratio onto a surface of a first composite substrate and coupling a second co-cure prepreg layer having a second off-set amine to epoxide molar ratio onto a surface of a second composite substrate. The first and second composite substrates are cured to the first and second co-cure prepreg layers, respectively, using a first cure cycle (including B-stage and cure temperatures) to form a first and a second co-cure prepreg layer portion. The method further includes coupling the first co-cure prepreg layer portion to the second co-cure prepreg layer portion and applying a second cure cycle to cure the first co-cure prepreg layer portion of the first composite substrate to the second co-cure prepreg layer portion of the second composite substrate to form a monolithic covalently bonded composite structure.

Abstract: The present invention relates to novel hardeners for curing epoxy resins and to cure accelerants for the accelerated curing of epoxy resins comprising, in each case, at least one compound from the group of esters of phosphorus-containing acids according to Formula (I), wherein there applies to Formula (I): wherein there applies to the radicals R1, R2, R3, R6, X and indices m, n, p, simultaneously or independently of one another: R1, R2=simultaneously or independently of one another, hydrogen or alkyl, R3=alkyl, aryl, —O-alkyl, —O-aryl, —O-alkylaryl or —O-arylalkyl, R6=hydrogen, alkyl or —NHC(O)NR1R2, X=oxygen or sulphur, m=1, 2 or 3, n=0, 1 or 2, wherein there applies: m+n=3 p=0, 1 or 2.

Abstract: The invention is related to a cost-effective method for producing water-soluble thermally-crosslinkable hydrophilic polymeric materials. Resultant materials can find particular use in preparing a packaging solution used for packaging and autoclaving medical devices, especially contact lenses. Those packaging solutions are especially suitable for forming a relatively-thick and soft hydrogel coatings on contact lenses or medical devices according to an in-package-crosslinking (IPC) processes. The resultant non-silicone hydrogel coatings can have a superior lubricity (a friction rating of 0) with minimized or no surface cracking.

Abstract: An adhesive composition with high frequency characteristics and the application thereof; wherein, the adhesive composition has a total weight of (A), (B) and (C) in 100 parts by weight, comprising: (A) 40-80 parts by weight of solvent-soluble polyimide; (B) 5-30 parts by weight of propenyl-modified polyphenylene oxide resin; (C) 10-30 parts by weight of epoxy resin; and optionally comprising at least one of the following components: (D) flexibilizer; (E) flame retardant; (F) inorganic filler; (G) coupling agent; and (H) catalyst. The adhesive composition has the advantages of low dielectric constant, low dielectric loss, favorable heat resistance and low-temperature (<180° C.) adhesion. The adhesive composition can be used for preparing high-frequency protective membrane and high-frequency adhesive film.

Abstract: A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of a cyclic ester compound having a structure shown as formula (I), which is 100 ppm-950 ppm; and based on the total weight of the biodegradable polyester composition, a weight content of cyclopentanone is 0.5 ppm-85 ppm is provided. The cyclic ester compound and cyclopentanone is added into the composition and controlling the content of the cyclic ester compound and the content of cyclopentanone in a certain range in the composition to realize an anti-thermal oxidative aging property of the biodegradable polyester composition. In addition, a film is prepared by blow molding or a part is prepared by injection molding after being digested with 95% ethanol at 40° C. for 240 hours.

Abstract: The present invention discloses the fabrication and application of a shape memory polymer possessing transesterification-induced permanent reshaping. The ester-containing crosslinked polymer is obtained by crosslinking ester bearing polymer precursors or by reaction of monomers which yield ester bonds. The transition temperature falls between 20-150° C. The reshaping temperature is tuned by catalyst amount and should be 20° C. above the transition temperature. The breakthrough of the present invention lies in integrating shape memory effect and plastic deformation into the same polymer and triggering the respective function at different occasions. The permanent shape of as synthesized polymer could be modified arbitrarily and cumulatively. Therefore, the hierarchical structure which could not otherwise be obtained due to the limit of mold fabrication process should expand the practical application of SMPs.

Abstract: There is provided an epoxy compound whose melt viscosity is low and which exhibits heat resistance and flame retardancy of a cured product; an epoxy resin which includes the same; curable composition and cured product; and semiconductor sealing material. The epoxy compound has a molecular structure represented by the following Formula (I): in the formula, G represents a glycidyl group, and X represents a structural site represented by the following Structural Formula (x1) or (x2); in Formula (x1) or (x2), k represents an integer of 1 to 3, m represents 1 or 2, Ar represents a structural site represented by the following Structural Formula (Ar1) or (Ar2), and when k or m represents 2 or greater, a plurality of Ar's may be the same as or different from each other: in Formula (3) or (4), G represents a glycidyl group, and p and r each independently represent 1 or 2.