Mitsui Chemicals, Inc.

Kuniaki Kawabe

Koji Matsunaga

Hiroshi Hoya

Takeshi Tsuda

Hirotaka Kanaya

Masakazu Tanaka

Mai Kurihara

Toshiyuki Itou

Toshiyuki Ito

Yosuke Takahashi

Akinori Etoh

Keiichi Taki

Kenji Sugimura

Motoyasu Yasui

Hirotaka Uosaki

Yoji Hayakawa

Kunihiko Mizumoto

Kan Komiya

Shinichirou Asao

Masayoshi Sutou

Yuichi Kaida

Naoshi Nagai

Hiroshi Matsuoka

Hiroki Ebata

Nobuhiro Takizawa

Hideto Ogasawara

Akinori Amano

Hiromasa Marubayashi

Kaori Matoishi

Ryouichi Seki

Terufumi Suzuki

Masaya Kusumoto

Takashi Hama

Masako Yoshida

Noriko Kai

Taro Ichikawa

Yasushi Amada

Naoki Tomoshige

Takuya Tamura

Tamotsu Harada

Kazutoshi Fujihara

Takuma Yano

Yusuke Sekioka

Hideo Nakamura

Akihito Ohga

Kozo Iiba

Shin Tokui

Hideki Kuroki

The purpose of the present invention is to provide a fiber-sizing agent which when applied to an inorganic reinforcement material contained in a resin composition, can provide a molded article having excellent impact resistance and high surface gloss properties. The fiber-sizing agent according to the present invention contains a modified olefin wax (A), a polyolefin resin (B), and a silane-coupling agent (C), wherein the mass ratio (A)/(B) of the modified olefin wax (A) to the polyolefin resin (B) is in the range of 0.2-10.

Fiber-sizing agent, inorganic reinforcement material, resin composition, and molded article

A novel vinyl chloride resin composition having exceptional transparency is provided. This resin composition comprises 3-15 parts by mass of a rubbery impact-absorbing material (B) for which the glass transition point in differential scanning calorimetry does not exceed 0&#xb0; C., and 0.1-10 parts by mass of a lubricant (C) that satisfies (i)-(iv) below, the content amounts above being indicated relative to 100 parts by mass of a vinyl chloride resin (A) having a chlorine content of 55-75 mass %. (i) The melt viscosity at 200&#xb0; C. is 5-5,000 mPa&#xb7;s (ii) The softening point is in the range of 60&#x2212;180&#xb0; C. (iii) The glass transition point (Tg) as measured in DSC is in the range of 0&#x2212;100&#xb0; C. (iv) A structural unit derived from at least one species selected from the group consisting of styrene, &#x3b1;-methylstyrene, indene, vinyl toluene, and isopropenyl toluene is contained in the molecule in an amount of 50-100 mass %

Resin composition and molded body formed therefrom

The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 &#x3bc;m or less.

Electroconductive resin composition, method for manufacturing same and molded article obtained therefrom

The purpose of the present invention is to provide: a vinyl chloride resin composition having exceptional impact resistance, processability, and heat resistance. The present invention provides: a resin composition that contains 3-15 parts by mass of a rubber-based impact-absorbing material and 0.1-10 parts by mass of a modified olefin wax per 100 parts by mass of a vinyl chloride resin. This resin composition satisfies the following requirements (I)-(III). (I) The chlorine content of the vinyl chloride resin is 55-75% by mass. (II) The glass transition temperature (Tg) in differential scanning calorimetry (DSC) of the rubber-based impact-absorbing material (B) is 0&#xb0; C. or lower. (III) The modified olefin wax contains at least one polar group selected from halogens and carboxylic acid derivatives, and the polar group content is within the range of 0.1-50% by mass.

Resin composition, and molded article and pipe formed from said composition

The purpose of the present invention is to provide a polar-group-containing propylene-type wax having excellent properties including a low melting point. A modified propylene-(&#x3b1;-olefin) copolymer (A) according to the present invention is produced by grafting at least one compound selected from an unsaturated carboxylic acid, a derivative of the unsaturated carboxylic acid and an unsaturated sulfonic acid salt onto a propylene-(&#x3b1;-olefin) copolymer (A1) and has an acid value of 1 to 100 KOHmg/g, wherein the propylene-(&#x3b1;-olefin) copolymer (A1) comprises 60 to 95 mol % of a propylene-derived constituent unit (a) and 5 to 40 mol % of a constituent unit (b) derived from an &#x3b1;-olefin having 4 or more carbon atoms, and satisfies the specific requirements (i) to (iii).

Modified propylene-(&#x3b1;-olefin) copolymer, method for producing same, coating material comprising same, resin composition for molding use, and hot-melt composition

The present invention relates to an olefin-based paint. The purpose of the present invention is to provide a paint with excellent organic solvent solubility or dispersibility, low paint viscosity, minimal coating irregularities even at high concentrations, excellent handling and storage stability, and excellent blocking resistance and coated film stability. In order to meet this purpose, an olefin-based paint is used that is characterized by containing a solution or dispersion obtained by dissolving or dispersing 0.1-55 parts by mass of a propylene-&#x3b1;-olefin copolymer (A) for 100 parts by mass of an organic solvent. The copolymer (A) is characterized by containing 60-90 mol % of propylene-derived constituent units (a) having a weight-average molecular weight (Mw), measured by GPC, in the range of 3,000 to 40,000, and 10-40 mol % of &#x3b1;-olefin-derived constituent units (b) having 4 or more carbon atoms [wherein (a)+(b)=100 mol %].

Olefin-based paint containing propylene/&#x3b1;-olefin copolymer

Provided is a resin composition which contains (A) a polyethylene wax satisfying the requirements (i)-(iv) described below and (B) at least one resin selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the mass ratio of (A) to (B) is from 0.1/99.9 to 50/50. This resin composition is useful for providing a toner which can be fixed by means of a relatively-low-temperature heating body and has good offset resistance, and which is suppressed in increase of particle diameters even if the toner is stored for a long period of time. (i) The weight average molecular weight (Mw) is within the range from 400 to 1,500. (ii) The molecular weight distribution (Mw/Mn) is within the range from 1.2 to 2.5. (iii) The penetration as measured at 25&#xb0; C. is 5 dmm or less. (iv) The melting point (Tm) is within the range from 50&#xb0; C. to 110&#xb0; C.

Resin composition, toner for electrophotography and hot melt composition

Provided is a resin composition containing: (A) an ethylene/&#x3b1;-olefin copolymer containing 91.0-99.9 parts by mole of (a) an ethylene-derived unit and 0.1-9.0 parts by mole of (b) a C-C&#x3b1;-olefin-derived unit (wherein (a)+(b) is 100 parts by mole), while satisfying the requirements (i)-(iv) and (B) a thermoplastic resin and/or a thermosetting resin, wherein the mass ratio (A)/(B) is 0.1/99.9 to 50/50. This resin composition is useful for providing a toner which can be fixed by a relatively-low-temperature heating body and has good offset resistance, and which is suppressed in increase of particle diameters even if the toner is stored for a long time. (i) The Mw is 400 to 1,500. (ii) The Mw/Mn is 1.2 to 2.5. (iii) The penetration measured at 25&#xb0; C. is 13 dmm or less. (iv) The melting temperature is 50&#xb0; C. to 110&#xb0; C.

Resin composition, toner for electrophotography, hot melt composition and ethylene/&#x3b1;-olefin copolymer

[Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [&#x3b7;] of 0.01 or more but less than 0.50 dl/g measured at 135&#xb0; C. in a decalin solvent.

4-methyl-1-pentene polymer, resin composition containing 4-methyl-1-pentene polymer, masterbatch thereof, and formed product thereof

Provided are a propylene-based polymer useful for providing a toner that is excellent in offset resistance, can be fixed by using a low-temperature heating element and hardly has stickiness even after stored for a long period of time; and a toner including said propylene-based polymer. The present invention is directed to a propylene/&#x3b1;-olefin copolymer (A) which includes 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from &#x3b1;-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol % and which satisfies: (i) a weight average molecular weight (Mw) as measured by GPC of 3,000 to 40,000; (ii) a melting point (Tm) as measured by DSC of 60 to 90&#xb0; C.; and (iii) a half width of a crystalline melting point peak as measured by DSC of 1 to 20&#xb0; C.

Propylene/alpha-olefin copolymer and uses thereof

A molded article formed of a composition including 100 parts by weight of at least one kind of resin selected from the group consisting of thermoplastic resins and thermosetting resins, and 0.01 parts by weight to 10,000 parts by weight of a silylated polyolefin, which is obtained by a reaction between a silicon-containing compound containing a structural unit represented by Formula (1) and a vinyl group-containing compound having a defined number average molecular weight, a derivative thereof, or a mixture of these,&#x2014;Si(R)H&#x2014;Y&#x2014;&#x2003;&#x2003;(1)wherein Rand Yare defined and with the proviso that the silylated polyolefin is not obtained by a reaction between a silicon-containing compound containing a structural unit represented by Formula (1) and having two or more SH groups per molecule and a compound having 2.0 or more vinyl groups on average per molecule as the vinyl group-containing compound.

Molded article

The present invention addresses the problem of providing an electrophotographic toner which has excellent storage property, is excellent in offset resistance and low-temperature fixing property during printing and has few substances causing staining with time, odor or dust inside a copy machine or a printer. The present invention relates to an electrophotographic toner characterized by containing an ethylene copolymer which comprises a constituent unit (a) derived from ethylene in an amount of 80 to 99.5% by mol and a constituent unit (b) derived from a cyclic olefin of 8 or more carbon atoms in an amount of 0.5 to 20% by mol [(a)+(b)=100% by mol] and satisfies the requirements: (i) the intrinsic viscosity [&#x3b7;] is in the range of 0.01 to 0.50 dl/g, and (ii) the crystallinity is in the range of 50 to 90%.

Electrophotographic toner

A resin fine powder which consists of a 4-methyl-1-pentene polymer that exhibits a limiting viscosity [&#x3b7;] of 1.0&#xd7;10to less than 3.0 dl/g as determined in decalin at 135&#xb0; C. and which has a median particle diameter [D] of 1.0&#xd7;10to 5.0&#xd7;10 &#x3bc;m; and a composition which comprises the resin fine powder and at least one sinterable powder selected from the group consisting of metal powders and ceramic powders.

Resin fine powder consisting of 4-methyl-1-pentene polymer, composition containing same, and process for production thereof

The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250&#xb0; C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [&#x3b7;] being 0.04 to 1.0 dl/g.

Thermoplastic resin composition for reflective material, reflective plate, and light-emitting diode element

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Chiba, Japan

Kuniaki Kawabe