Sumitomo Chemical Company, Limited

Hiroshi Toyoda

Nobuo Oi

Hiroyuki Harada

Naoko Ochi

Noboru Komine

Eiji Nakaishi

Provided are a film having an excellent balance between heat seal strength and opening strength, a method of producing the film, and a bag obtained by heat-sealing the film. According to the present invention, there is provided a film containing a resin, wherein a resin density of the film is 860 kg/mor more and less than 900 kg/m, and on at least one surface of the film, an arithmetic mean height Sa satisfies the following Expression [1]:0.10 &#x3bc;m&#x2264;Sa&#x2264;0.50 &#x3bc;m&#x2003;&#x2003;[1], and

Film, method of producing film, and bag

A process for producing a thermoplastic elastomer composition comprising the step of crosslinking dynamically at least the following components (A) to (C) in the presence of a crosslinking agent: (A) 10 to 50% by weight of an oil-extended ethylene-&#x3b1;-olefin-non-conjugated diene copolymer rubber having a density of 850 to 900 kg/m, and a Mooney viscosity (ML100&#xb0; C.) of 30 to 150, (B) 20 to 60% by weight of an ethylene-&#x3b1;-olefin copolymer having a density of 850 to 910 kg/m, and a melt flow rate of 0.05 to 80 g/10 minutes measured at 230&#xb0; C. under a load of 21.18 N, and (C) 20 to 60% by weight of a propylene resin, the total amount of the components (A) to (C) being 100% by weight; and an air-bag cover comprising a thermoplastic elastomer composition produced according to said process.

Process for producing thermoplastic elastomer composition, and air-bag cover

A thermoplastic elastomer composition characterized in that the composition comprises a resin component and at least two kinds of rubber components, wherein at least one kind of the rubber components makes a continuous phase and/or a network-like phase, and the remaining at least one kind of the rubber components makes an isolated phase; and a process for producing the same.

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Chiba, Japan

Hiroshi Toyoda