The masterbatch contains a black pigment and a masterbatch thermoplastic resin, the masterbatch satisfying the following conditions: (Conditions) when a resin plate is produced by kneading 100 parts by weight of polypropylene having a melt flow rate of 30 g/10 min (JIS K7210:1999) and a density of 0.9 g/cm.sup.3 (JIS K7112:1999) with respect to 3 parts by weight of the masterbatch and subjecting the mixture to injection molding using a mold polished by a coated abrasive with a particle size of #800 (JIS R6001:1998), a* values and b* values of a surface of the resin plate in the L*a*b* color system satisfy specific conditions.

Provided is a biaxially oriented polypropylene film that can enhance function of having high stiffness, having excellent heat resistance at a high temperature of 150° C., easily maintaining a bag shape when being made into a packaging bag, having less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed, and improving lamination strength. A biaxially oriented polypropylene film comprising a base layer (A), an intermediate layer (B), and a surface layer (C), wherein a stress at 5% elongation (F5) at 23° C. of the biaxially oriented polypropylene film is not lower than 40 MPa in a longitudinal direction and not lower than 160 MPa in a width direction, and a heat shrinkage rate at 150° C. of the biaxially oriented polypropylene film is not higher than 10% in the longitudinal direction and not higher than 30% in the width direction.

Provided is a biaxially oriented polypropylene film that has high stiffness, has excellent heat resistance at a high temperature of 150° C., easily maintains a bag shape when being made into a packaging bag, and has less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed. A biaxially oriented polypropylene film, wherein a stress at 5% elongation (F5) at 23° C. of the biaxially oriented polypropylene film is not lower than 40 MPa in a longitudinal direction and not lower than 160 MPa in a width direction, and a heat shrinkage rate at 150° C. of the biaxially oriented polypropylene film is not higher than 7% in the longitudinal direction and not higher than 16% in the width direction.

Provided is a glass direct roving that can achieve good productivity for long glass fiber-reinforced thermoplastic resin pellets, and achieve excellent spinning productivity and good strength of glass fiber-reinforced resin molded articles produced by using long glass fiber-reinforced thermoplastic resin pellets in combination. The glass direct roving includes a plurality of glass filaments bundled together, wherein the filament diameter of the glass filaments, D, is in the range of 17.5 to 21.5 μm, the number of the glass filaments bundled, F, is in the range of 3000 to 7000, the mass of the glass direct roving is in the range of 2450 to 4000 tex, the ignition loss of the glass direct roving, L, is in the range of 0.03 to 0.90%, and the D, F, and L satisfy the following formula (1): $\begin{array}{cc}1050\le \left(D^4\times F^{1/4}\right)/\left(1000\times L^{1/6}\right)\le 1640.& \left(1\right)\end{array}$

A thermoplastic composite material includes a thermoplastic polymer matrix component, a microparticle component, a nanoparticle component, and a compatibilizing agent component, at least a portion of the microparticle component and/or nanoparticle component is a natural fiber.

Disclosed methods include formulating azobenzene-based polymer networks to induce a modulus change in a highly crosslinked polymer, in vivo, with no external heat requirement and using a benign light as the source of stimuli. A modulus change can be achieved via a coating on the substrate and within the bulk of the substrate via photoexposure. The azobenzene-based polymer network can be formed as a coating or in the bulk of a material from either a glassy composition comprising methyl methacrylate (MMA), poly (methyl methacrylate) (PMMA), and triethylene glycol dimethacrylate (TEGDMA) or a soft material comprising of long-chain difunctional acrylates. The disclosed technology also includes methods of biofilm disruption and removal from the surface of a substrate, and includes methods of inhibiting biofilm growth and cell attachment to a substrate.

A composition for fiber-reinforced resin that provides a fiber-reinforced resin with sufficient mechanical strength. The composition for fiber-reinforced resin contains at least one resin (A) selected from the group consisting of rosin resins, petroleum resins, terpene resins, and hydrides of cyclic ketone-aldehyde resins, and the resin (A) has a softening point of 80° C. to 180° C.

An object of the present invention is to provide a fiber-reinforced composite material achieving both lightweight properties and mechanical properties, a laminate thereof, and a prepreg capable of easily molding a sandwich structure thereof. The present invention is a prepreg comprising a reinforced fiber substrate (B) impregnated with a resin (A), wherein the reinforced fiber substrate (B) exists in a folded state having a plurality of folds with a fold angle of 0° or more and less than 90° in the prepreg.

A gas barrier film comprising a resin base material, an oxygen barrier coating provided on at least one surface of the resin base material, and a base layer and/or an inorganic oxide layer provided between the resin base material and the oxygen barrier coating, wherein the black area ratio of one surface measured by the following measuring method is 0.15% or less: <Measuring method> An arbitrary region of 1281 μm square on one surface of a resin base material is photographed with an optical microscope to acquire a photographed image of 1024×1024 pixels, the photographed image is converted into a monochrome image of 256 gradations using an image analysis software, and the value obtained by subtracting 30 from the most frequent value of the luminance in the monochrome image is set as the threshold, the value less than the threshold is set to black, and the value not less than the threshold is set to white, thus binarizing the luminance, and the ratio of the total area of the black regions having a size of 100 μm.sup.2 or more in the 1281 μm square region is defined as the black area ratio.

A radiation curable inkjet ink set comprising a cyan inkjet ink containing a beta-copper phthalocyanine pigment and a polymerizable composition; a magenta inkjet ink containing a magenta or red pigment and a polymerizable composition; a yellow inkjet ink containing a yellow pigment and a polymerizable composition; and a black inkjet ink containing a carbon black pigment and a polymerizable composition; wherein the polymerizable compositions of the cyan, magenta, yellow and black inkjet inks include on average: a) 20.0 to 40.0 wt % of phenoxyethyl acrylate; b) 23.0 to 32.0 wt % of isobornyl acrylate; c) 1.0 to 14.4 wt % of monomer selected from the group consisting of 4-acryloylmorpholine and a monomer according to Formula (I), wherein X represents C or O, n represents 1, 2 or 3 and m represents 0 or 1; and d) up to 14.0 wt % of a multifunctional monomer or oligomer; wherein all weight percentages (wt %) are based upon the total weight of the inkjet ink; and wherein 0, 1 or 2 of the cyan, magenta, yellow and black inkjet inks deviate in a range a) to d) and this deviation is no more than 1.0 wt %.

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