Abstract: A drawn film production method including steps of drawing a crystalline thermoplastic resin film in the TD direction is characterized in that the orientation coefficient of the c-axis of the crystal of the thermoplastic resin in the film to the MD direction of the film is 0.8 or higher.

Abstract: Disclosed is a propylene-based resin foamed sheet comprising a foamed layer formed of propylene-based resin and a non-foamed layer formed of a propylene-based resin that exhibits in its DSC measurement an endothermic curve that has a fusion peak which is the highest peak in the curve and which has a half-width ?W of 15° C. or more and a container obtained by vacuum forming the propylene-based resin foamed sheet.

Abstract: A multilayer polyolefin foamed sheet comprises a foamed layer and a non-foamed layer. The foamed layer is composed of polyolefin and the non-foamed layer is composed of one of the polyolefins, a polypropylene with a long-chain branch and a polyolefin-based adhesive resin with a long-chain branch. In another aspect, a multilayer polyolefin foamed sheet comprises a foamed sheet having at least one polyolefin foamed layer and a gas barrier resin sheet having at least one barrier resin layer laminated thereon, wherein the gas barrier resin sheet has a thickness of from 10 to 300 &mgr;m and has a thickness distribution, Tmax/Tmin, of from 1 to 1.2 in an area of at least 25 cm2.

Abstract: The present invention provides a thermoplastic resin sheet having a thermoplastic resin expanded layer of which expansion ratio is in the range of 3 to 40 times, and cell wall density ratio is in the range of 2 to 20, said thermoplastic resin sheet having excellent thermal insulation property, and a container being formed from the thermoplastic resin sheet.

Abstract: Disclosed is an expandable resin composition comprising an olefin-based copolymer (a) and a thermally decomposable foaming agent (b) kneaded therein, wherein the olefin-based copolymer is composed of 5 to 50% by weight of monomer units derived from propylene and 95 to 50% by weight of monomer units derived from 1-butene.

Abstract: A resin composition containing from 85 parts by weight inclusive to 100 parts by weight exclusive of a polymer (1) and from 0 parts by weight exclusive to 15 parts by weight inclusive of a polymer (2), provided that the total of the polymer (1) and the polymer (2) is assigned to be 100 parts by weight,

Abstract: The present invention provides a thermoplastic resin-molded article comprising a thermoplastic resin functional member fused partially to a foamed sheet made of thermoplastic resin shaped in a predetermined form, as well as a process for producing the same. The thermoplastic molded article is preferably used mainly as an interior part in automobiles.

Abstract: Disclosed is a foamed polypropylene resin sheet having a foamed layer comprising a resin material containing a polypropylene resin, wherein the foamed polypropylene resin sheet has a non-foamed layer satisfying the following requirements (i) and (ii):

Abstract: An object of the present invention is to provide a foamed polypropylene resin container for microwave cooking which is free from deformation upon cooking by a microwave oven and excellent in heat resistance. The foamed polypropylene resin container for microwave cooking of the present invention, on at least one side of a foamed polypropylene resin layer, a non-foamed layer containing 100 parts by weight of a polypropylene resin and 40 to 100 parts by weight of talc.

Abstract: The present invention provides a thermoplastic resin-molded article comprising a thermoplastic resin functional member fused partially to a foamed sheet made of thermoplastic resin shaped in a predetermined form, as well as a process for producing the same. The thermoplastic molded article is preferably used mainly as an interior part in automobiles. According to the present invention, thermoplastic resin molded articles having less variability of the drawing strength of thermoplastic resin functional members from thermoplastic resin foamed sheets can be provided, and these used in interior parts in automobiles. Such molded articles made of thermoplastic resin can be produced efficiently according to the process of the present invention.

Abstract: A resin material comprising a resin, which satisfies at least one relationship selected from the group consisting of the following relationships [I] and [II] is provided: ln(OTR/22.5)+4.78 ln(Fy/Fy′)<−0.13, and T2−T1≦20  [I] in which Fy′ is a yield strength of a standard saponified ethylene-vinyl acetate copolymer at 60° C.; Fy is a yield strength of the resin material at 60° C.; OTR is an oxygen gas permeability (cc/m2·day·atm) of the resin material per a unit thickness of 1 &mgr;m at 23° C. and a relative humidity of 0%; T1 is a haze (%) of a film of the resin material having a thickness of 30 &mgr;m after being maintained at 23° C. and a relative humidity of 48% for 48 hours; and T2 is a haze (%) of a film of the resin material having a thickness of 30 &mgr;m after being maintained at 40° C. and a relative humidity of 90% for 24 hour, and ln(OTR/22.5)+0.0698(Tim−157)<−0.

Abstract: A drawn film production method comprising steps of drawing a crystalline thermoplastic resin film in the TD direction is characterized in that the orientation coefficient of the c-axis of the crystal of the thermoplastic resin in the film to the MD direction of the film is 0.8 or higher.

Abstract: A film-like materials of resin manufacturing method for producing a film-like material made of a resin by rolling a thermoplastic resin material containing a thermoplastic resin using a molding apparatus comprising first rotation molding members composed of a pair of rollers, wherein the method is characterized in that the rotation molding is carried out under the conditions satisfying the following inequalities of the line contact pressure P (kN/m) applied to the thermoplastic resin, the peripheral velocity R (m/sec) of the rollers of the first rotation molding members, and the thickness H (m) of the film-like material made of the resin after rolling. (formula 1) 3×9.8≦P (formula 2) 3×9.8×10−6≦P/(R/H2)≦2×9.

Abstract: To provide a polyolefin based resin film of high elastic modulus and a composition for producing a polyolefin based resin film of high elastic modulus. The polyolefin based resin film is characterized in that a polyolefin [A] having a weight average molecular chain length of 2850 nm or more and a polyolefin wax [B] having a weight average molecular weight of 700 to 6000 have been compounded in a ratio of [A]/[B]=90/10 to 50/50 (by weight) as the resin component, and 10 to 300 parts by weight of inorganic fillers have been added to 100 parts by weight of the resin component.

Abstract: The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density &rgr;1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700-6000 and a density &rgr;2 (g/cm3), the polyolefin and the polyolefin wax are incorporated at [A]/[B]=90/10-50/50 (ratio by weight), and the densities &rgr;1 and &rgr;2 satisfy the following conditions: 0.92.≦&rgr;1≦0.94, 0.91≦&rgr;2≦0.93, −0.03≦(&rgr;1-&rgr;2)≦0.03.

Abstract: To provide a slitting method of a battery separator-use resin film object that is less susceptible to occurrences of holes and tearing at the time of a slitting process. A slitting device, which is provided with a feeding roll 51 for feeding a film that is wound up to a role with its rotational velocity being controlled, a razor blade for slitting the film to a predetermined width, a sensor for detecting a tension of the film and winding rolls for winding the film up while controlling its tension, is used for carrying out a slitting process in a manner so as to satisfy the following conditions (1) and (2): (Condition 1) 5×9.8×104≦T/L≦5×9.8×105 (Condition 2) 1≦R/T≦5 where L is a thickness (m) of the film object, R is a rotational velocity (m/min) of the feeding roll and T is a tension (N/m) of the film object after having been subjected to the slitting operation.

Abstract: An object of the present invention is to provide a foamed polyolefin resin sheet which exhibits a high adhesive strength when laminated with a layer formed of a saponified ethylene-vinyl ester copolymer and which still exhibits a high adhesive strength even when laminated with a layer of a thermoplastic resin having relatively low polarity such as a polyolefin resin. This object is attained by a foamed polyolefin resin sheet including a foamed polyolefin resin layer and a non-foamed surface layer formed of a thermoplastic resin composition having an A1/A2 ratio falling within a range between 1×10−8 and 1×10−1, wherein A1 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1700 to 1750 cm−1 and A2 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1455 to 1465 cm−1.

Abstract: A sheet excellent in surface smoothness in which bubble break in a foamed layer is effectively prevented, and a method of producing this sheet stably are provided.

Abstract: An object of the present invention is to provide an foamed polypropylene resin container for microwave cooking which is free from deformation upon cooking by a microwave oven and excellent in heat resistance. The foamed polypropylene resin container for microwave cooking of the present invention comprises, on at least one side of an foamed polypropylene resin layer, a non-foamed layer containing 100 parts by weight of a polypropylene resin and 40 to 100 parts by weight of talc.

Abstract: The present invention provides a shrinkable film characterized by being a laminate film having at least one layer formed of a gas barrier resin composition satisfying the following expressions (1) and (2) and by having an average shrinking rate in its longitudinal and transverse directions after immersion in a 120° C. oil bath for ten seconds of 45% or more: ln(OTR/22.5)+0.0698(Tim−157)<−0.06  (1) T2−T1≦20  (2) (where in the expression (1), OTR and Tim are, respectively, an oxygen transmission rate (cc/m2·day·atm) of a 1-&mgr;m thick portion of a film formed of the gas barrier resin composition at 23° C. and a relative humidity of 0% and a melting point of the gas barrier resin composition, and in the expression (2), T1 is a haze (%) of a 30-&mgr;m thick film of the gas barrier resin composition left at 23° C.