Abstract: There is provided a laminated heating structure comprising a molding layer (A) made of a thermotropic liquid crystal polymer, a conductive layer (B) for heating a protective coating layer (C) by applying an electric current therethrough, and the protective coating layer (C), provided that the layers (A), (B) and (C) are laminated in this order, and an inexpensive laminated heating structure excellent in heat resistance, dimensional accuracy and mechanical strength, reduced in electric power consumption, and shortened in build-up time.

Abstract: A molded article of a composition obtained by dynamically heat-treating a thermoplastic resin and/or a rubbery substance in the presence of a crosslinking agent, or such composition with an inorganic filler incorporated therein, is subjected to the radiation of ultraviolet light not longer than 300 nm in wave length, whereby surface characteristics of the molded article can be improved without deterioration of such characteristics as rigidity, impact- and heat-resistance, dimensional stability and processability.

Abstract: Surface characteristics of a molded article formed by a composition comprising at least two kinds of engineering plastics and a functionalized polyolefin resin or a composition comprising the said composition and an inorganic filler or a rubbery substance incorporated therein can be improved without deteriorating such characteristics as rigidity, impact resistance, heat resistance, dimensional stability and moldability, by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, the said functionalized polyolefin resin containing at least one member selected from the group consisting of carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, epoxy group-containing monomers, hydroxyl group-containing monomers, amino group-containing monomers, alkenyl cyclic iminoether derivatives and polyfunctional monomers.

Abstract: Surface characteristics of a molded article formed by a composition including a polypropylene resin, an engineering plastic and a functionalized polyolefin resin or a composition including the said composition and an inorganic filler or a rubbery substance incorporated therein can be improved without deteriorating such characteristics as rigidity, impact resistance, heat resistance, dimensional stability and moldability, by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, the said functionalized polyolefin resin containing at least one member selected from the group consisting of carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, epoxy group-containing monomers, hydroxyl group-containing monomers, amino group-containing monomers, alkenyl cyclic iminoether derivatives and polyfunctional monomers.

Abstract: Surface characteristics of a molded article formed by a composition including a thermoplastic resin and a functionalized polyolefin resin or a composition incorporating the above composition and an inorganic filler or a rubbery substance incorporated therein can be improved without deteriorating such characteristics as rigidity, impact resistance, heat resistance, dimensional stability and moldability, by radiating an ultraviolet light not longer than 300 nm in wavelength to the molded article, the said functionalized polyolefin resin containing at least one member selected from the group consisting of carboxylic acid group-, carboxylic ester group- or acid anhydride group-containing monomers, epoxy group-containing monomers, hydroxyl group-containing monomers, amino group-containing monomers, alkenyl cyclic iminoether derivatives and polyfunctional monomers.

Abstract: A process for preparing a porous film or sheet, which process comprises melt-forming a composition into a film or sheet and then stretching the thus-formed film or sheet at a temperature in the range of 30.degree. to 110.degree. C., said composition containing:(a) 30-90% by weight of a linear low-density polyethylene having a density not smaller than 0.910 g/cm.sup.3 and smaller than 0.940 g/cm.sup.3 ;(b) 10-70% by weight of an ethylene/.alpha.-olefin copolymer having a density not smaller than 0.860 g/cm.sup.3 and smaller than 0.910 g/cm.sup.3, a boiling n-hexane insolubles content not less than 10% by weight and a maximum peak temperature not lower than 100.degree. C. as measured according to a differential scanning calorimetry; and(c) 20-500 parts by weight of a filler based on 100 parts by weight of said resin components.

Abstract: A polyolefin composition and the same especially used for producing vehicle exterior members which is excellent in softness, impact resistance, moldability, appearance, restorable property and so forth. The composition comprises 20 to 70% by weight of a crystalline propylene polymer (a); 10 to 50% by weight of a substantially amorphous .alpha.-olefin copolymer (b); 5 to 50% by weight of an ethylene-.alpha.-olefin copolymer (c) which is 0.860 to 0.910 g/cm.sup.3 in density, 10% by weight or more in boiling n-hexane insoluble matter and 100.degree. C. or higher in the maximum peak temperature T.sub.m according to the differential scanning calorimetry (DSC); and 5 to 30% by weight of an ethylene polymer (d) of 0.910 to 0.965 g/cm.sup.3 in density, wherein the total of said components (a), (b), (c) and (d) is 100% by weight.