Abstract: In the disclosure, the occurrence of an arc is rapidly detected while the frequency of erroneous detection is suppressed. An arc detecting apparatus includes an arc presence/absence determining part determining presence or absence of an arc based on an AC current measured by a current sensor measuring a current from a solar cell, and a repeat number setting part setting, based on a signal strength of the AC current, a repeat number of processing that the arc presence/absence determining part repeatedly performs to determine the presence or absence of the arc.

Abstract: In the disclosure, the occurrence of an arc is rapidly detected while the frequency of erroneous detection is suppressed. An arc detecting apparatus includes an arc presence/absence determining part determining presence or absence of an arc based on an AC current from a solar cell, and a repeat number setting part setting, based on the DC current from the solar cell, a repeat number of processing that the arc presence/absence determining part repeatedly performs to determine the presence or absence of the arc.

Abstract: The polyolefin composite film is excellent in low-temperature heat sealability, heat-sealing strength and transparency, and at least has surface layer [i]//intermediate layer [iii]//core layer[i], wherein the surface layer[i]includes a propylene resin composition including 0-50 wt % of a specific propylene?-olefin random copolymer (A) and/or a specific 1-butene?-olefin copolymer (E), and 50-100 wt % of a propylene polymer (B) having a melting point of 120-170° C. ((A), (E) and (B) in the surface layer totals 100 wt %); the core layer [ii]includes a propylene resin composition including 70-100 wt % of a crystalline polypropylene (C) having a melting point of 150-170° C.

Abstract: Melt bags of the invention are molten uniformly at temperatures lower than melting operation temperatures in the product manufacturing and do not remain unmolten in the final products. The melt bags have high storage stability and excellent mechanical properties. Resin compositions of the invention are suited to give such melt bags. A resin composition of the invention includes a propylene/C2-20 ?-olefin (except propylene) copolymer (A) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, and an ethylene/C3-20 ?-olefin copolymer (B) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, the weight ratio of these copolymers (A)/(B) being in the range of 99/1 to 1/99.

Abstract: Melt bags of the invention are molten uniformly at temperatures lower than melting operation temperatures in the product manufacturing and do not remain unmolten in the final products. The melt bags have high storage stability and excellent mechanical properties. Resin compositions of the invention are suited to give such melt bags. A resin composition of the invention includes a propylene/C2-20 ?-olefin (except propylene) copolymer (A) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, and an ethylene/C3-20 ?-olefin copolymer (B) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, the weight ratio of these copolymers (A)/(B) being in the range of 99/1 to 1/99.

Abstract: The polyolefin composite film is excellent in low-temperature heat sealability, heat-sealing strength and transparency, and at least has surface layer [i]//intermediate layer [iii]//core layer [ii], wherein the surface layer [i] includes a propylene resin composition including 0-50 wt % of a specific propylene/?-olefin random copolymer (A) and/or a specific 1-butene/?-olefin copolymer (E), and 50-100 wt % of a propylene polymer (B) having a melting point of 120-170° C. ((A), (E) and (B) in the surface layer totals 100 wt %); the core layer [ii] includes a propylene resin composition including 70-100 wt % of a crystalline polypropylene (C) having a melting point of 150-170° C.

Abstract: There is provided a thermoplastic polymer composition excellent in the balance among mechanical strength, elongation at break, flexibility and heat resistance, and an article including the composition, and an electric wire and electric cable having an insulator and/or a sheath including the composition. The thermoplastic polymer composition includes 1 to 350 parts by mass of a filler (D) with respect to 100 parts by mass of polymer components that comprise 50 to 90% by mass of an ethylene/unsaturated ester copolymer (A); 1 to 40% by mass of a propylene-based polymer (B) having a melting point as measured by differential scanning calorimetry (DSC) of from 120 to 170° C.; and 1 to 49% by mass of a propylene-based polymer (C) having a melting point as measured by differential scanning calorimetry (DSC) of lower than 120° C. or not being observed, provided that the total amount of (A), (B) and (C) is 100% by mass.

Abstract: To provide a lactic acid polymer composition excellent in transparency, heat resistance and productivity, a molded article, a sheet and a multilayer sheet each of which comprises the composition, a thermoformed article obtained by secondary-forming the sheet or the multilayer sheet, and a process for producing the thermoformed article with excellent productivity. The lactic acid polymer composition of the invention comprises 100 parts by weight of a lactic acid polymer (A), 0.1 to 3 parts by weight of an organic crystal nucleating agent (B) comprising an aliphatic carboxylic acid amide having an amide bond, and 0.1 to 7 parts by weight of a crystallization accelerator (C). The thermoformed article of the invention is obtained with excellent production efficiency by thermoforming the sheet comprising the composition of the invention at a temperature of 60 to 130° C.

Abstract: Melt bags of the invention are molten uniformly at temperatures lower than melting operation temperatures in the product manufacturing and do not remain unmolten in the final products. The melt bags have high storage stability and excellent mechanical properties. Resin compositions of the invention are suited to give such melt bags. A resin composition of the invention includes a propylene/C2-20 ?-olefin (except propylene) copolymer (A) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, and an ethylene/C3-20 ?-olefin copolymer (B) having (1) a melting point (Tm) of not more than 90° C. as measured by differential scanning calorimetry (DSC) or not showing a melting point peak in DSC, the weight ratio of these copolymers (A)/(B) being in the range of 99/1 to 1/99.

Abstract: A propylene polymer resin composition characterized in that it has a flexural modulus in the range of 200 to 1200 MPa and a melt flow rate (MFR) measured at 230° C. in the range of 0.1 to 30 g/min, and a melt tension (MT (mN)) and an MFR (g/10 min) measured at 230° C. satisfy a specific formula, and a sheet or film obtained therefrom. According to the present invention, there is provided a polyolefin film which is excellent in transparency and especially excellent in transparency and low-temperature heat shrinkable properties after stretching.

Abstract: To provide a lactic acid polymer composition excellent in transparency, heat resistance and productivity, a molded article, a sheet and a multilayer sheet each of which comprises the composition, a thermoformed article obtained by secondary-forming the sheet or the multilayer sheet, and a process for producing the thermoformed article with excellent productivity. The lactic acid polymer composition of the invention comprises 100 parts by weight of a lactic acid polymer (A), 0.1 to 3 parts by weight of an organic crystal nucleating agent (B) comprising an aliphatic carboxylic acid amide having an amide bond, and 0.1 to 7 parts by weight of a crystallization accelerator (C). The thermoformed article of the invention is obtained with excellent production efficiency by thermoforming the sheet comprising the composition of the invention at a temperature of 60 to 130° C.

Abstract: The present invention provides a polypropylene resin composition having good moldability and giving a film or a sheet that is excellent in transparency and heat-sealing properties. A polypropylene resin composition of the present invention comprises 1 to 50 wt % of a propylene polymer (A) whose melting point Tm as measured with a differential scanning calorimeter (DSC) is 150° C. or higher, 10 to 90 wt % of a propylene copolymer (B) whose melting point Tm is 100° C. or higher and below 150° C., and 1 to 80 wt % of an olefin copolymer (C) whose melting point is 40° C. or higher and below 100° C., comprising 50 mol % or more of a constitutional unit derived from either one of propylene or 1-butene (a) and 50 mol % or less of a constitutional unit derived from an ?-olefin having 2 to 20 carbon atoms (b) other than the constitutional unit (a) (here, the sum of (a) and (b) is 100 mol %). A film obtained from this resin composition is suitable as a packaging film for food and the like.

Abstract: The invention is directed to a lens barrel and a compact lens system incorporating the lens barrel where notches defined in a cam barrel to serve as bolt holes and disengage the studs are reduced in dimensions both along and around the optical axis, thereby ensuring enlarged cam formation ranges in the cam barrel and resultantly downsizing the lens system as a whole.

Abstract: An object of the present invention is to provide a propylene resin composition capable of providing a thermoformed container excellent in heat resistance, moldability, appearance and shape, and a molded article obtained by bending processing a polypropylene resin composition excellent in heat resistance and shape retention property in bending processing. An object of the present invention is to provide a polypropylene resin composition comprising 50 to 99% by weight of a propylene polymer (A) having a meting point (Tm) in the range of 140 to 170° C. as measured by a differential scanning calorimeter and 1 to 50% by weight of a propylene/?-olefin copolymer (B) having a melting point (Tm) of 100° C. or less or having no observed melting point, a molded article and a sheet obtained therefrom, and a container obtained by thermoforming the sheet.

Abstract: A propylene polymer resin composition characterized in that it has a flexural modulus in the range of 200 to 1200 MPa and a melt flow rate (MFR) measured at 230° C. in the range of 0.1 to 30 g/min, and a melt tension (MT (mN)) and an MFR (g/10 min) measured at 230° C. satisfy a specific formula, and a sheet or film obtained therefrom. According to the present invention, there is provided a polyolefin film which is excellent in transparency and especially excellent in transparency and low-temperature heat shrinkable properties after stretching.

Abstract: The invention is directed to a lens barrel and a compact lens system incorporating the lens barrel where notches defined in a cam barrel to serve as bolt holes and disengage the studs are reduced in dimensions both along and around the optical axis, thereby ensuring enlarged cam formation ranges in the cam barrel and resultantly downsizing the lens system as a whole.

Abstract: The invention provides an aliphatic polyester resin composition that contains 100 parts by weight of an aliphatic polyester resin and from 10 to 60 parts by weight of at least one compound of a formula (1): wherein n indicates an integer of from 1 to 9, R1 to R4 each independently represent an alkyl group having from 1 to 17 carbon atoms, and when n is 2 or more, R3 may differ in different units, a film formed of the composition, and packages with the film. The aliphatic polyester film of the invention keeps the degradability in the natural environment that is intrinsic to lactic acid-based polymer, and has good heat resistance, flexibility, transparency and adhesiveness, and, in addition, the plasticizer does not migrate to the surface of the film.

Abstract: A resin composition (AA) comprising an aliphatic polyester or aliphatic polyamide (component (A)), a plastic having a melting point or glass transition temperature (Tg) of ?10° C. or more (component (B)) and a radical generating agent (C), wherein the compounding ratio of the component (A), the component (B) and the radical generating agent (C), based on the total weight thereof, is: 1 to 98.995% by weight of the component (A), 98.995 to 1% by weight of the component (B), and 0.005 to 5% by weight of the radical generating agent (C), and an aliphatic unsaturated polybasic acid (a) is contained in the polymer constituent of the component (A) and/or the component (B). The resin composition is suitable as a starting material of biodegradable material which maintains transparency, is free of bleeding of a plasticizer, is endowed with flexibility and has other advantageous characteristics so that it can be used in various fields.

Abstract: The invention provides an aliphatic polyester resin composition that contains 100 parts by weight of an aliphatic polyester resin and from 10 to 60 parts by weight of at least one compound of a formula (1): 1

Abstract: The invention is to provide a multi-layered polyester film having good heat-sealability and transparency and suitable to secondary working into bags, etc. The film comprises a layer (layer A) that contains a polyhydroxycarboxylic acid-type aliphatic polyester (polyester A) and a layer (layer B) that contains a diol-dicarboxylic acid polycondensation-type polyester (polyester B).