Mitsui Chemicals, Inc.

Japan Science and Technology Agency

Akihiko Iwashita

Tatsuya Nakamura

Tomoaki Matsugi

Yasushi Yanagimoto

Junji Saito

Eiichi Nakamura

Yutaka Matsuo

Keita Itakura

Ryoichi Tsunori

Shigeyuki Yasui

Yoshiyuki Ogawa

Youhei Houtani

A propylene polymer satisfying (a) below, a soft propylene copolymer satisfying (b) below, and a polyolefin containing a structural unit derived from an unsaturated carboxylic acid and/or a derivative thereof, wherein (a) a melting point is 100&#xb0; C. or more, and (b) an MFR is in the range of 0.01 to 100 g/10 min, at least one of the following requirements (b-1) and (b-2) is satisfied: (b-1) a syndiotactic triad fraction s 60% or more, and (b-2) a structural unit derived from propylene is 55 to 90 mol % and a structural unit derived from at least one olefin having 2 to 20 carbon atoms (excluding propylene) is contained at 10 to 45 mol % (with provisos), and the relation between an intrinsic viscosity [&#x3b7;] (dL/g) and the MFR satisfies the relation: 1.50&#xd7;MFR&#x2264;[&#x3b7;]&#x2264;2.65&#xd7;MFR.

Polypropylene resin composition and monolayer and multilayer film

An adhesive resin composition of the invention includes an ethylene polymer (A) including an ethylene polymer graft-modified with an unsaturated carboxylic acid or a derivative thereof, and satisfies the following requirements (1) to (4). (1) The melt flow rate (MFR) measured at a temperature of 190&#xb0; C. and a load of 2160 g in accordance with ASTM D 1238 is 0.1 to 3 g/10 min. (2) The density is 910 to 930 kg/m. (3) The proportion of fractions that elute at 50&#xb0; C. and below in crystallization elution fractionation chromatography measurement is not less than 20 mass %. (4) The proportion of fractions that elute at 90&#xb0; C. and above in crystallization elution fractionation chromatography measurement is not less than 25 mass %.

Adhesive resin composition and laminate

An olefin resin having requirements (I) to (VI) is provided: (I) a grafted olefin polymer containing a main chain with an ethylene/&#x3b1;-olefin copolymer and a side chain with a propylene polymer; (II) the ratio P wt % of propylene polymer is from 5 to 60 wt %; (III) when the ratio of the amount of a component(s) having a peak temperature of a differential elution curve as measured by CFC using o-dichlorobenzene of less that 65&#xb0; C., to the amount of (&#x3b2;) taken as E wt %, the value a represented by an equation (Eq-1), is 1.4 or more; (IV) the melting point (Tm) is 120 to 165&#xb0; C. and the glass transition temperature (Tg) is &#x2212;80 to &#x2212;30&#xb0; C., as measured by DSC; (V) the hot xylene-insoluble content is less than 3 wt %; and, (VI) the limiting viscosity as measured in decalin at 135&#xb0; C. is 0.5 to 5.0 dl/g.

Olefin-based resin, method for producing same and propylene-based resin composition

The present invention provides an olefin resin with an improved heat resistance, reduced stickiness, excellent optical and low temperature properties, as well as the balance between these physical properties. The olefin resin according to the present invention satisfies the following requirements: (I) a melting peak (Tm) is observed within the range of from 60&#xb0; C. to 130&#xb0; C., and the heat of fusion &#x394;H at the melting peak is within the range of from 5 to 150 J/g; (II) the percentage E (wt %) of a portion soluble in o-dichlorobenzene at 20&#xb0; C. or lower, and the heat of fusion &#x394;H satisfy certain relationships; (III) the glass transition temperature (Tg) is from &#x2212;80 to &#x2212;30&#xb0; C.; (IV) the spin-spin relaxation time (T2) of a component having the highest mobility, as obtained in a four-component approximation with a Lorentzian function performed for a free induction decay curve, is within the range of from 150 to 500 ms, and the abundance ratio of the component is within the range of from 15 to 50%; and (V) the intrinsic viscosity [&#x3b7;] as measured in decalin at 135&#xb0; C. is within the range of from 0.1 to 12 dl/g.

Olefin resin and method for producing same

The present invention provides a method for producing a fullerene derivative, comprising the organic group addition step B in which an organic group is further added by reacting at least a basic compound and a halogen compound with a fullerene derivative, which is obtained by addition of a hydrogen atom and an organic group in the organic group addition step A, in which an organic group is added by reacting at least a Grignard reagent and a polar substance with a fullerene or fullerene derivative.

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Tokyo, Japan

Akihiko Iwashita