The present invention relates to a powdered material (M) containing at least one poly(arylene sulfide) (PAS) polymer, comprising recurring units p, q and r according of formula (I) wherein n.sub.p, n.sub.q and n.sub.r are respectively the mole % of each recurring units p, q and r; recurring units p, q and r are arranged in blocks, in alternation or randomly; 2≤(n.sub.q+n.sub.r)/(n.sub.p+n.sub.q+n.sub.r)≤9; nq is ≥0% and nr is ≥0%; j is zero or an integer varying between 1 and 4; R.sup.1 is selected from the group consisting of halogen atoms, C.sub.1-C.sub.12 alkyl groups, C.sub.7-C.sub.24 alkylaryl groups, C.sub.7-C.sub.24 aralkyl groups, C.sub.6-C.sub.24 arylene groups, C.sub.1-C.sub.12 alkoxy groups, and C.sub.6-C.sub.18 aryloxy groups.

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A fiber-reinforced resin base material includes continuous reinforcing fibers or a reinforcing fiber base material in which discontinuous fibers are dispersed, the continuous reinforcing fibers or a reinforcing fiber base material being impregnated with a polyphenylene sulfide resin composition, wherein the fiber-reinforced resin base material has a glass-transition temperature, as measured by the DMA method (bending mode), of 115° C. or higher.

The present invention generally relates to a system and method for using a volatile organic compound (VOC) free low radiant flux LED UV curable composition, and more particularly to unique and novel uses of the composition such as one or two or more of a fire retardant, clear coat, composite material, resin, top coat, improved holdout coating, a sealant coat, and combinations of the same.

Provided is a method for producing a polyarylene sulfide resin, the method including subjecting a dihaloaromatic compound and a sulfidizing agent to a polymerization reaction in the presence of an aliphatic cyclic compound having a ring openable by hydrolysis, in which corrosion of a production apparatus is suppressed. More particularly, provided is a method for producing a polyarylene sulfide resin, the method including a dehydration step (1) in which a water-containing sulfidizing agent and an aliphatic cyclic compound having a ring openable by hydrolysis are heated in the presence of a dihaloaromatic compound to a liquid temperature in the range of 90° C. or higher and 170° C. or lower under the atmospheric pressure, and then dehydration is performed while maintaining the liquid temperature and reducing the pressure to a pressure in the range of 30 [kPa abs] or higher and 80 [kPa abs] or lower to thus obtain a mixture.

A photocurable resin composition for forming an optically clear film. The photocurable resin composition includes a polyfunctional thiol monomer comprising 2 thiol functional groups, a polyfunctional (meth)acrylate monomer comprising 2 (meth)acryloyl functional groups, a photo-initiator present in a concentration of about 1 parts per hundred (phr) or less, a sterically hindered phenolic antioxidant present in a concentration of about 5 phr or less, and a phosphite antioxidant present in a concentration of about 5 phr or less.

A resin composition containing a polyarylene sulfide resin (A), zeolite (B), a glass fiber (C), and calcium carbonate (D), wherein the mass ratio of the glass fiber (C) to the calcium carbonate (D) ((C)/(D)) is in the range of 1 to 13. From the viewpoint of improving the release properties of the resin composition, a wax is preferably incorporated into the resin composition, and, in this case, a wax (E) having an acid value of 15 or less is preferably incorporated.

There is provided a method for efficiently recovering amide-based compounds such as N-methyl-2-pyrrolidone from a waste liquid containing amide-based compounds such as N-methyl-2-pyrrolidone generated, for example, in a production process of polyarylene sulfide.

Described herein are flash nanoprecipitation methods capable of encapsulating hydrophobic molecules, hydrophilic molecules, bioactive protein therapeutics, or other target molecules in amphiphilic copolymer nanocarriers.

Disclosed are articles having a thermoplastic photochromic coating. The articles exhibit a Bayer Abrasion ratio of at least 2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light.

The invention provides a polyphenylene sulfide film formed of a polyphenylene sulfide resin composition and comprising at least one layer, wherein the (a) polyphenylene sulfide film has a thickness of 0.2-30 μm, (b) the polyphenylene sulfide film has a tensile elongation at break of 30%-150% in each of an MD direction and a TD direction, (c) a relationship between the tensile elongation at break in the MD direction (SMD) and the tensile elongation at break in the TD direction (STD) satisfies the formula 0.75≤SMD/STD≤1.25, and (d) the polyphenylene sulfide film has a heat shrinkage rate at 180° C. for 30 minutes of 4% or less in both the MD direction and the TD direction.