Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.

A porous resin film for a metal layer laminate board and a metal layer laminate board are provided to suppress damage to a metal layer disposed on an inner peripheral surface of a through hole and to have excellent electrical connection reliability even under the high temperature environment. The porous resin film for a metal layer laminate board is used in lamination of a metal layer. The porous resin film for a metal layer laminate board has a minimum thermal expansion coefficient X in a plane direction perpendicular to a thickness direction and a thermal expansion coefficient Z in the thickness direction. In the porous resin film for a metal layer laminate board, a ratio (Z/X) of the thermal expansion coefficient Z in the thickness direction to the minimum thermal expansion coefficient X is 3.5 or less.

A polyphenylene ether resin composition includes (A) a modified polyphenylene ether that is end-modified with a substituent having a carbon-carbon unsaturated double bond, and (B) a crosslinking agent having a carbon-carbon unsaturated double bond. The crosslinking agent serving as component (B) includes from 50 to 100 mass % of (B-1) divinylbenzene and (B-2) polybutadiene. Components (A) and (B) are included in a ratio therebetween, expressed as the mass ratio (A):(B), of from 65:35 to 95:5. Components (B-1) and (B-2) are included in a ratio therebetween, expressed as the mass ratio (B-1):(B-2), of from 1:100 to 1.5:1.

A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.

The patent provides a superabsorbent polymer hydrogel xerogel sponge and a preparation method and an application thereof. The sponge is a three-dimensional network porous sponge with chitosan as its skeleton, superabsorbent polymer as its branched chain, and macromolecule or polymer with flexible structure as its cross-linking agent. The sponge can be prepared by a one-pot method. The product has porous structure, having the characteristic of superabsorbent and maintaining integrity and certain mechanical strength after water absorption. The material can be used in the emergency hemostasis of large arteriovenous hemorrhage. The effect is better than that of the existing materials in the market. The superabsorbent hydrogel xerogel sponge provided by the invention has the advantages of simple preparation process, low cost. The product has outstanding hemostatic effect, good safety, with no heat production and no residue, and has significant medical value and industrial potential.

Provided is a composition for optical stereolithography the stereolithography (photocuring) of which is completed in a shorter time and which provides a stereolithographic object having excellent strength (strength that prevents the occurrence of a fracture and the like when the stereolithographic object is subjected to an impact, or dropping, and strength with which the stereolithographic object can withstand repeated folding). The composition for optical stereolithography of the present invention includes (A) a diallyl phthalate-based polymer; (B) radical polymerizable compounds having a methacrylic group and/or an acrylic group; (C) a radical polymerization initiator; and (D) a sensitizer. The (B) radical polymerizable compounds includes at least (B1) an epoxy (meth)acrylate having a methacrylic group and/or an acrylic group, or (B2) a dioxane (meth)acrylate having a methacrylic group and/or an acrylic group. The composition contains 0.5 to 10% by mass of (A), 5 to 43% by mass of (B1) and (B2), 20 to 95% by mass of (B) other than (B1) and (B2), 0.1 to 5% by mass of (C), and 0.1 to 5% by mass of (D).

A thermosetting resin composition containing a maleimide compound (a) having at least one N-substituted maleimide group, and a compound (b) represented by the following general formula (1) exhibiting no reactivity with the maleimide group of the component (a) (X.sup.b1 represents a single bond or a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 5 carbon atoms; R.sup.b1 and R.sup.b2 each independently represent a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted heterocyclic aromatic hydrocarbon group having 5 to 20 ring atoms, an oxygen atom-containing group, or a group containing a combination of these groups; and m and n each independently represent an integer of 0 to 5).

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A resin composition contains a preliminary reaction product (A) obtained by previously reacting a polyphenylene ether compound (a1) having a hydroxyl group in a molecule and an acid anhydride (a2) having an acid anhydride group in a molecule, and a curable resin (B) containing a reactive compound having an unsaturated double bond in a molecule, in which an equivalent ratio of the acid anhydride group in the acid anhydride (a2) to the hydroxyl group in the polyphenylene ether compound (a1) is 1.5 or less, and a content of the curable resin (B) is 20 to 85 parts by mass with respect to 100 parts by mass of a sum of the preliminary reaction product (A) and the curable resin (B).

A foamable resin composition comprising: (meth)acrylate oligomer, which accounts for 10-40 wt % of the foamable resin composition; (meth)acrylate monomer, which accounts for 35-80 wt % of the foamable resin composition; a photocuring initiator, which accounts for 1-5 wt % of the foamable resin composition; and a foaming agent, which accounts for 3-20 wt % of the foamable resin composition; wherein the foamable resin composition has a specific gravity of 0.10-1.05 g/cm.sup.3 after photocuring and thermal foam expansion for 15-20 minutes at 120 C. The aforementioned foamable resin composition can become a low specific gravity (0.10-1.05 g/cm.sup.3) material after photocuring and thermal foam expansion, then can expand the application in 3D printing, and manufacture of plastic products, such as shoe soles, coasters, floats, various types of protective gear and the like.

An ultraviolet light-curable coating composition includes 5-40 weight percent of an ultraviolet light-curable poly(polyphenylene ether) oligomer; 60-95 weight percent of an ultraviolet light-curable monomer, oligomer, polymer, or a combination thereof; and 0.01-3 weight percent of a photoinitiator.