摘要:
This invention provides an extensible film or sheet comprising 100 to 60 parts by weight of an ethylene copolymer having a density of less than 0.910 g/cm.sup.3 and 0 to 40 parts by weight of a linear polyethylene having a density of 0.910 to 0.945 g/cm.sup.3, specified by the following properties:1) film blocking as expressed by 180.degree. peel strength is 60 g/25 mm or less;2) tensile elongation is 750% or more;3) Elmendorf tear strength is 30 kg.cm/cm.sup.2 or more; and4) 1% secant modulus is 20 to 2,000 kg/cm.sup.2.The film or sheet of this invention has excellent extensibility and is free from blocking. It is also excellent in flexibility and hand and drape and can be preferably used as a film for gather of disposable diapers, etc., packing sheet for disposable diapers, and the like.
摘要:
A porous film or sheet including a resin composition mainly of an ultra-high molecular weight polyethylene having a viscosity-average molecular weight of not less than 500,000, and having a thickness of 10 to 100 .mu.m, an air permeability of 20 to 2,000 sec/100 cc, a porosity of 15 to 80%, a pin puncture strength (per 25 .mu.m of film thickness) of not less than 120 g, a thermal-shut down temperature of 90.degree. to 150.degree. C. and a heat puncture temperature of not less than 160.degree. C., and a process for producing the same.
摘要:
Disclosed herein are a polypropylene resin composition comprising 100 parts by weight of propylene homopolymer showing a stereoregularity of a boiling heptane-insoluble part thereof of not less than 0.960 as an isotactic pentad rate obtained by .sup.13 C-NMR and 0.01 to 2 parts by weight of a hydrocarbon polymer having completely or partially saturated main hydrocarbon chain and at least one hydroxy group at an end of the main hydrocarbon chain, and a biaxially stretched film comprising the polypropylene resin composition.
摘要:
Disclosed herein is a monoaxially or biaxially stretched film comprising principally of a linear polyethylene and capable of reduction of thickness to a greater extent than possible with the conventional films of this type.The film according to the present invention, though incomparably small in thickness, has excellent impact strength, stiffness, tensile strength and tear strength and can be favorably utilized as a film for packaging bags used for packaging relatively heavy commodities.
摘要:
The present invention provides a liquid crystal display panel and a liquid crystal display device presenting a reduced color addition and an improved bright room contrast. The liquid crystal display panel of the present invention includes wirings made of a metal having at least 90% reflection over a wavelength region within the visible light region, where the reflectance of the liquid crystal panel over a wavelength range of 600 to 700 nm at the display surface is no greater than 150% of the reflectance at the wavelength of 550 nm at the display surface.
摘要:
A flexible substrate includes: (i) a film; (ii) an insulating resin layer formed on each of a front face of the film and a rear face of the film, which rear face is opposite to the front face; (iii) a front-sided wiring pattern embedded in the insulating resin layer formed on the front face of the film, and a rear-sided wiring pattern embedded in the insulating resin layer formed on the rear face of the film; and (iv) a via which is located between the front-sided wiring pattern and the rear-sided wiring pattern and serves to electrically interconnect the front-sided wiring pattern and the rear-sided wiring pattern, wherein the insulating resin layer formed on each of the front face and the rear face of the film is thicker than the film.
摘要:
A flexible substrate comprises a film, a first insulating resin layer on a front face of the film, a second insulating resin layer on a rear face of the film, a front-sided wiring pattern embedded in the first insulating resin layer, and a rear-sided wiring pattern embedded in the second insulating resin layer. A surface of the front-sided wiring pattern is flush with a surface of the first insulating resin layer, and a surface of the rear-sided wiring pattern is flush with a surface of the second insulating resin layer. A part of at least one of the front-sided wiring pattern and the rear-sided wiring pattern is dented toward a part of the other of the at least one of the front-sided wiring pattern and the rear-sided wiring pattern such that a portion of the front-sided wiring pattern and a portion of the rear-sided wiring pattern are jointed to each other to form a junction.
摘要:
The present invention relates to a high-strength porous film or sheet consisting essentially of a high-molecular-weight polyethylene resin having a viscosity-average molecular weight of not less than 300,000, wherein the said film has a thickness of 5 to 50 .mu.m, an air permeability of 200 to 1,000 sec/100 cc, a porosity of 10 to 50% and a pin puncture strength of not less than 600 gf/25 .mu.m, and a process for producing the said film.
摘要:
This invention disclosed herein provides an alcohol acetyl transferase ("AATase"), an AATase encoding gene and a yeast having an improved ester producing ability due to transformation with the AATase encoding gene. This invention also provides a process for producing an alcoholic beverage having an enriched ester flavor using the transformed yeast.
摘要:
A wrapping film comprising at least an outer layer, an interlayer, and an inner layer in this order, (a) the wrapping film having a shear peel strength of 0.20 kg/cm.sup.2 or more and a 180.degree. peel strength of 8.0 g/50 mm or less, (b) the outer layer and the inner layer each being a polyolefin resin composition layer, (c) the interlayer being an aliphatic polyamide resin layer, (d) the wrapping film exhibiting a tensile elongation at break of 200% or less in the direction of film withdrawal and a tensile elongation at break of 80% or more in the direction perpendicular to the direction of film withdrawal, (e) the ratio of the tensile elongation at break in the direction of film withdrawal to that in the direction perpendicular to the direction of film withdrawal being in the range of 0.7 or less, and (f) the total thickness of the wrapping film being in the range of 40 .mu.m or less, and the thickness of the interlayer is in the range of 10 to 90% of the total thickness of the wrapping film.