Modified cellulose fibers and cellulose composite thereof

An object of the invention is to provide cellulose fibers which can give a cellulose composite that renders high transparency, a reduction in linear expansion coefficient, and a high modulus of elasticity possible. The invention relates to: a process for producing modified cellulose fibers which includes a modification reaction step of reacting cellulose with an aromatic compound in an organic acid to thereby modify the cellulose with an aromatic-ring-containing substituent; cellulose fibers modified with aromatic-ring-containing substituent; a dispersion of the cellulose fibers; and a cellulose fiber composite obtained from the same.

Toner for the development of electrostatic image and process for the preparation thereof

The present invention provides a process for the preparation of a novel toner satisfying a high resolution, a low temperature fixability and a high offset resistance at a low cost. A novel toner for the development of an electrostatic image is provided comprising an agglomerate of particles containing at least primary polymer particles, wherein said primary polymer particles substantially comprise a wax encapsulated therein.

Method for manufacturing rubber composition, rubber composition, vulcanized rubber, and tire

Provided are a method for manufacturing a rubber composition, which method can give a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a rubber composition obtained using this method, a vulcanized rubber, and a tire. The method is a method for manufacturing a rubber composition comprising short fibers, comprising a dispersion preparation step for preparing a short fiber dispersion by adding the short fibers into a liquid, a mixed dispersion preparation step for preparing a mixed dispersion by adding at least one dispersant selected from the group consisting of carbon black and inorganic compounds into the short fiber dispersion, a mixing step for mixing the mixed dispersion and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.

FIBER COMPOSITE

To provide a cellulose fiber composite having high transparency, low water absorption and low coefficient of linear thermal expansion. A fiber composite which comprises fibers having an average fiber diameter of at most 30 nm and a matrix material and which has a haze of at most 5 according to JIS K-7136 when the fiber composite has a thickness of 100 m.

FIBER COMPOSITE

To provide a cellulose fiber composite having high transparency, low water absorption and low coefficient of linear thermal expansion. A fiber composite which comprises fibers having an average fiber diameter of at most 30 nm and a matrix material and which has a haze of at most 5 according to JIS K-7136 when the fiber composite has a thickness of 100 μm.

Rubber composition, method for manufacturing same, vulcanized rubber, and tire

Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.

Modified Olefin Polymer Composition and Olefin Polymer Composition Containing the Same

To provide a modified olefin polymer composition comprising a phyllosilicate dispersed in a modified olefin polymer in a sufficiently delaminated state, and an olefin polymer composition comprising a phyllosilicate dispersed in an olefin polymer in a sufficiently delaminated state obtained by diluting the modified olefin polymer composition as a masterbatch diluted with an olefin polymer. A modified olefin polymer composition obtained by mixing a phyllosilicate containing cations of an inorganic compound between layers with a modified olefin polymer having a functional group, and an olefin polymer composition comprising the modified olefin polymer composition diluted with an olefin polymer.

Polyvinyl alcohol based block copolymer and pigment dispersion aqueous liquid using the same and recording liquid

A recording liquid capable of giving a printed matter which is high in printing density, is suppressed in blur, has high printing quality, and has good fastness of a recorded matter including light fastness, water fastness and the like and having a low viscosity, good discharge properties and excellent storage stability. The invention is concerned with a polyvinyl alcohol based block copolymer represented by the following general formula (1), a pigment dispersion aqueous liquid containing this polyvinyl alcohol based block copolymer and a pigment in an aqueous medium, and a recording liquid containing this pigment dispersion aqueous liquid. wherein A, B, X¹, X², X³, X⁴, m 1 , and m 2 have the same meanings as defined in the specification.

Cellulose Fiber Assembly and Method for Preparing the Same, Fibrillated Cellulose Fibers and Method for Preparing the Same, and Cellulose Fiber Composite

An object of the present invention is to provide a cellulose fiber assembly and a cellulose fiber composite, each having low coloration. The present invention is directed to a method for preparing a fibrillated cellulose fiber assembly, in which the cellulose fiber raw materials are subjected to a fibrillation treatment and a reduction treatment. The present invention provides a method for preparing a cellulose fiber assembly, comprising a fibrillation step of fibrillating cellulose fiber raw materials to obtain fibrillated cellulose fibers, an assembly preparation step of obtaining a cellulose fiber assembly using the fibrillated cellulose fibers, and a step of carrying out a reduction treatment. Further, the present invention provides a cellulose fiber composite comprising the prepared cellulose fiber assembly and a matrix material. 1. A method for preparing a cellulose fiber assembly , comprising:a fibrillation step of fibrillating cellulose fiber raw materials to obtain fibrillated cellulose fibers,an assembly preparation step of obtaining a cellulose fiber assembly using the fibrillated cellulose fiber, anda step of carrying out a reduction treatment.2. The method for preparing a cellulose fiber assembly according to claim 1 , wherein the cellulose fiber assembly obtained in the assembly preparation step is subjected to the reduction treatment.3. The method for preparing a cellulose fiber assembly according to claim 2 , further comprising a step of carrying out a chemical modification treatment.4. A cellulose fiber assembly prepared by the method for preparing a cellulose fiber assembly according to .5. A cellulose fiber composite comprising the cellulose fiber assembly according to and a matrix material.6. A method for preparing fibrillated cellulose fibers claim 4 , wherein cellulose fiber raw materials are subjected to a fibrillation treatment claim 4 , a reduction treatment claim 4 , and a chemical modification treatment.7. Fibrillated cellulose fibers ...

Toner for the development of electrostatic image and process for the preparation thereof

The present invention provides a process for the preparation of a novel toner satisfying a high resolution, a low temperature fixability and a high offset resistance at a low cost. A novel toner for the development of an electrostatic image is provided comprising an agglomerate of particles containing at least primary polymer particles, wherein said primary polymer particles substantially comprise a wax encapsulated therein.

Toner for the development of electrostatic image and process for the preparation thereof

The present invention provides a process for the preparation of a novel toner satisfying a high resolution, a low temperature fixability and a high offset resistance at a low cost. A novel toner for the development of an electrostatic image is provided comprising an agglomerate of particles containing at least primary polymer particles, wherein said primary polymer particles substantially comprise a wax encapsulated therein.

Fiber composite

To provide a cellulose fiber composite having high transparency, low water absorption and low coefficient of linear thermal expansion. A fiber composite which comprises fibers having an average fiber diameter of at most 30 nm and a matrix material and which has a haze of at most 5 according to JIS K-7136 when the fiber composite has a thickness of 100 m.

Rubber modifier, rubber modifier dispersion, and rubber composition

The present invention provides a rubber modifier capable of exhibiting good dispersibility in a dispersion thereof and excellent in a rubber-modifying effect such as rubber-reinforcing effect or the likes. The invention relates to a rubber modifier comprising cellulose fibers, in which the number of the cellulose fibers having a fiber length of 450 nm or less, relative to the number of all the cellulose fibers therein, is 50% or more, to a rubber modifier dispersion comprising the rubber modifier and a dispersion medium, and to a rubber composition comprising the rubber modifier and a rubber component.

Polyvinyl alcohol based block copolymer and pigment dispersion aqueous liquid using the same and recording liquid

A recording liquid capable of giving a printed matter which is high in printing density, is suppressed in blur, has high printing quality, and has good fastness of a recorded matter including light fastness, water fastness and the like and having a low viscosity, good discharge properties and excellent storage stability. The invention is concerned with a polyvinyl alcohol based block copolymer represented by the following general formula (1), a pigment dispersion aqueous liquid containing this polyvinyl alcohol based block copolymer and a pigment in an aqueous medium, and a recording liquid containing this pigment dispersion aqueous liquid. wherein A, B, X 1 , X 2 , X 3 , X 4 , m1, and m2 have the same meanings as defined in the specification.

Process for production of microfibrillated cellulose fiber dispersion

The invention relates to a method for producing a microfibrillated cellulose fiber dispersion containing microfibrillated cellulose fibers, at least one of a resin and a resin precursor, and an organic solvent, and the method comprises a fibrillation step of fibrillating cellulose fibers in a starting material dispersion containing cellulose fibers, at least one of a resin and a resin precursor, and an organic solvent, to obtain microfibrillated cellulose fibers.

METHOD FOR MANUFACTURING RUBBER COMPOSITION, RUBBER COMPOSITION, VULCANIZED RUBBER, AND TIRE

Provided are a method for manufacturing a rubber composition, which method can give a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a rubber composition obtained using this method, a vulcanized rubber, and a tire. The method is a method for manufacturing a rubber composition comprising short fibers, comprising a dispersion preparation step for preparing a short fiber dispersion by adding the short fibers into a liquid, a mixed dispersion preparation step for preparing a mixed dispersion by adding at least one dispersant selected from the group consisting of carbon black and inorganic compounds into the short fiber dispersion, a mixing step for mixing the mixed dispersion and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition. 1. A method for manufacturing a rubber composition comprising short fibers ,comprising:a dispersion preparation step for preparing a short fiber dispersion by adding the short fibers into a liquid;a mixed dispersion preparation step for preparing a mixed dispersion by adding at least one dispersant selected from the group consisting of carbon black and inorganic compounds into the short fiber dispersion;a mixing step for mixing the mixed dispersion and rubber latex to prepare a rubber-short fiber mixed solution; anda drying step for drying the rubber-short fiber mixed solution to give a rubber composition.2. The method for manufacturing a rubber composition according to claim 1 , comprising in place of the dispersion preparation step and the mixed dispersion preparation step claim 1 , a mixed dispersion batch preparation step for preparing the mixed dispersion by adding the dispersant into the liquid and then further adding the short fibers thereto.3. The method for manufacturing a rubber composition according to ...

RUBBER COMPOSITION, METHOD FOR MANUFACTURING SAME, VULCANIZED RUBBER, AND TIRE

Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition. 1. A rubber composition comprising a rubber component and short fibers , wherein the short fibers are cationized.2. The rubber composition according to claim 1 , wherein the amount of the cationized short fibers is 0.1 to 50 parts by mass based on 100 parts by mass of the rubber component.3. A method for manufacturing the rubber composition according to claim 1 , comprising:a mixing step for mixing the cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution; anda drying step for drying the rubber-short fiber mixed solution to give a rubber composition.4. A method for manufacturing the rubber composition according to claim 1 , wherein in a mixing step for mixing the cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution claim 1 , the rubber-short fiber mixed solution is separated into two layers.5. The method for manufacturing the rubber composition according to claim 4 , wherein in the mixing step claim 4 , after the rubber-short fiber mixed solution is separated into two layers claim 4 , a layer composed mainly of water is removed.6. The method for manufacturing the rubber composition according to claim 3 , wherein prior to the mixing step claim 3 , the cationized short fibers are added into a liquid to prepare a short fiber dispersion claim 3 , and in the mixing step ...

Rubber modifier, rubber modifier dispersion, and rubber composition

The present invention provides a rubber modifier capable of exhibiting good dispersibility in a dispersion thereof and excellent in a rubber-modifying effect such as rubber-reinforcing effect or the likes. The invention relates to a rubber modifier comprising cellulose fibers, in which the number of the cellulose fibers having a fiber length of 450 nm or less, relative to the number of all the cellulose fibers therein, is 50% or more, to a rubber modifier dispersion comprising the rubber modifier and a dispersion medium, and to a rubber composition comprising the rubber modifier and a rubber component.

Polyester with excellent colour, transparency and melt stability etc.

Polyesters (I) derived from (a) terephthalic acid or an ester-forming derivative thereof and (b) a mixture of ethylene glycol (EG) and 10-60 mole% 1,4-cyclohexanedimethanol (CHDM), with an intrinsic viscosity of 0.68-.95 dl/g, a colorimetric "b" value of -5 to 5 (as pellets), a carboxylic acid end group content of not more than 30 eq./t and a total content of not more than 25 eq./t of vinyl, vinylidene and methylcyclohexene end groups of formula -COO-CH=CH2 (I), (II) and (III) respectively. Also claimed are (i) products obtained by moulding polyester (I), and (ii) a process for the production of (I).

Modified cellulose fiber and cellulose complex comprising same

An object of the invention is to provide cellulose fibers which can give a cellulose composite that renders high transparency, a reduction in linear expansion coefficient, and a high modulus of elasticity possible. The invention relates to: a process for producing modified cellulose fibers which includes a modification reaction step of reacting cellulose with an aromatic compound in an organic acid to thereby modify the cellulose with an aromatic-ring-containing substituent; cellulose fibers modified with aromatic-ring-containing substituent; a dispersion of the cellulose fibers; and a cellulose fiber composite obtained from the same.

Fiber composite

Process for production of fine cellulose fiber dispersion

ゴム改質剤、ゴムラテックス分散液及びゴム組成物

【課題】セルロース繊維を用いたゴム改質剤であって、破壊強度が高く、エネルギ−ロスの小さいゴム組成物を得ることができるゴム改質剤を提供する。 【解決手段】セルロース繊維からなるゴム改質剤であって、該セルロース繊維の数平均繊維径は８０ｎｍ以下であり、該セルロース繊維は、０．１重量％の水分散液としたときの、２５℃において測定される、ずり速度１００ｓ −１ における粘度が３ｍＰａ・ｓ未満であるゴム改質剤。該ゴム改質剤を含有するゴム改質剤分散液。該ゴム改質剤とゴムラテックスとを含有するゴムラテックス分散液。該ゴム改質剤とゴムとを含有するゴム組成物。該ゴムラテックス分散液を用いて製造されたゴム組成物。該ゴム組成物を加硫して製造された加硫ゴム組成物。 【選択図】なし

脂肪族ポリエステル樹脂組成物

【課題】溶融張力が大きく、種々の成形方法による成形に好適な脂肪族ポリエステル樹脂組成物を提供する。【解決手段】脂肪族ポリエステル樹脂とセルロース誘導体とを含む脂肪族ポリエステル樹脂組成物であって、該セルロース誘導体のグルコース単位の水酸基の一部が、Ｒ－ＣＯ基（但し、Ｒは炭素数２～３２の炭化水素基）で置換され、該セルロース誘導体のグルコース単位の水酸基の置換度が、０．１以上１．０未満であり、該脂肪族ポリエステル樹脂１００質量部に対して、該セルロース誘導体を０．０１～２５質量部含有することを特徴するとする脂肪族ポリエステル樹脂組成物。【選択図】なし

Rubber-improving material, rubber-improving material dispersion fluid, and rubber composition

微細セルロース繊維分散液の製造方法

【課題】 複合体を製造する前に、予めセルロース繊維の不織布などを製造せずに、微細セルロース繊維と樹脂との複合体を得る方法を提供することを課題とする。 【解決手段】 セルロース繊維と粘度が１．０以上で、屈折率が１．４０以上の有機溶媒とを含有する分散液中で、セルロース繊維を解繊して、微細セルロース繊維を得ることを特徴とする、微細セルロース繊維分散液の製造方法、該製造方法により製造された微細セルロース繊維分散液、該微細セルロース繊維分散液と樹脂および／または樹脂前駆体を含有する、微細セルロース繊維-樹脂分散液、該微細セルロース繊維-樹脂分散液を用いて製造されるセルロース繊維複合体およびその製造方法。 【選択図】 なし

ポリビニルアルコール系ブロックコポリマーおよびこれを用いた水系顔料分散液

【課題】 印字濃度が高く、滲みが抑制され、印字品位が良く、耐光性、耐水性等の堅牢性良好な印字物を与え、且つ低粘度、吐出性、保存安定性に優れた記録液を提供する。 【解決手段】 下記一般式（１）で表されるＰＶＡ系ブロックコポリマー、及び水性媒体中にこのＰＶＡ系ブロックコポリマーと顔料を含む顔料分散水性液、並びに記録液。 【化１】 （但し、上記一般式（１）において、 ＡはＰＶＡ系ブロックを示し、 Ｂは疎水性セグメントＢ’と、Ａ、Ｂ’以外の親水性又は疎水性セグメントＢ’’とを含むブロックを示し、 Ｘ １ 、Ｘ ２ 、Ｘ ３ 及びＸ ４ は、水素原子、ハロゲン原子、アルキル基、アリール基またはアラルキル基（但し、これらの有機基は、炭素数が１〜２０であり、且つ、直鎖、分岐または環状の何れであってもよい）であり、Ｘ １ 、Ｘ ２ 、Ｘ ３ 及びＸ ４ は相互に異っていてもよく、ｍ１は１〜５の整数を表し、ｍ２は０〜４の整数を表し、ｍ１＋ｍ２が１〜５の整数を表す。） 【選択図】 なし

ゴム改質材、ゴムラテックス分散液及びゴム組成物

【課題】分散液中で良好な分散性を示し、ゴム補強性などのゴム改質効果に優れたゴム改質材を提供する。 【解決手段】セルロース繊維からなるゴム改質材であって、数平均繊維径が５〜３５ｎｍであるゴム改質材、該ゴム改質材及び分散媒を含有するゴム改質材分散液、該ゴム改質材とゴムラテックスとを含有するゴムラテックス分散液、該ゴム改質材とゴム成分とを含有するゴム組成物、並びに該ゴム組成物を加硫して製造される加硫ゴム組成物。本発明のゴム改質材によれば、高い弾性率、高い破壊強度、低発熱性のゴム組成物及び加硫ゴム組成物を得ることができる。 【選択図】なし

塗料組成物及び塗装物品

【課題】セルロース繊維が塗料中に均一に分散され、さらに高い弾性率を有し、かつ伸びの低下が抑制された塗膜を形成し得る有機溶剤型の塗料組成物を提供すること。【解決手段】セルロース繊維（Ａ）、被膜形成性樹脂（Ｂ）及び有機溶剤（Ｃ）を含有する塗料組成物であって、セルロース繊維（Ａ）が、アセチル基及びカルボキシ基を有するものであり、有機溶剤（Ｃ）が、溶解性パラメータ値８．５以上であることを特徴とする塗料組成物。【選択図】なし

ゲルセンサー

【課題】ゲルの変位量が小さい場合でも大きな電圧を発生させることできるゲルセンサーを提供する。【解決手段】誘電性高分子材料を含み、かつ、頂部と底面とを有する突部１０、を備えるゲル層１１と、該突部１０の頂部に接して配される第一電極１２と、該第一電極１２とともに該ゲル層１１を挟持する第二電極１３とを備えることを特徴とする、ゲルセンサー１。【選択図】図１

調光部材

【課題】容易に大面積とすることができる調光部材、及び該調光部材を有するスマートウィンドウを提供する。【解決手段】負極と、正極と、該負極と該正極とで挟持され、誘電性高分子材料を含むゲル層とを有し、かつ、前記負極及び前記正極のうち少なくともいずれか一方が、透光性を有し、かつ、前記正極と前記ゲル層との接触面積が、前記負極と前記ゲル層との接触面積よりも小さい、調光部材。【選択図】図２

静電荷像現像用トナー及び現像方法

(57)【要約】 【課題】色再現性が良好でかつ鮮明な色調のフルカラー 画像を、繰り返して現像する場合においても安定して得 ることができるトナーを提供する。 【解決手段】少なくとも結着樹脂、着色剤、帯電制御剤 からなる静電荷像現像用トナーにおいて、着色剤として ピグメントレッド２３８、同１４７及びそれらに類似の 構造を有する化合物を含み、帯電制御剤としてサリチル 酸アミド骨格を有する化合物もしくはその金属塩を含む ことを特徴とする静電荷像現像用トナー。

静電荷像現像用トナーの製造方法

【課題】定着性、耐オフセット性に優れる静電荷像現像用トナーの製造方法を提供する。 【解決手段】ワックスエマルションの存在下でモノマーを乳化重合して、該ワックスエマルションの平均粒径より小さい平均粒径を有する重合体一次粒子のエマルションを製造する工程、次いで、得られた重合体一次粒子エマルションを着色剤一次粒子のエマルションと混合し、凝集させて会合粒子を形成する工程、を経ることを特徴とする静電荷像現像用トナーの製造方法。 【選択図】なし

ゲルアクチュエータ

【課題】低い印加電圧で大きな変位量を得ることができるゲルアクチュエータを提供する。【解決手段】誘電性高分子材料を含む突部１０を複数備えるゲル層１１と、突部１０の頂部に接して配される正極１２と、正極１２に対し、突部１０を高さ方向に挟む位置に配される負極１３と、を備えるゲルアクチュエータ１において、突部１０が錐型をしており、突部１０の底面の最大幅が１ｍｍ以下となるゲルアクチュエータ１。【選択図】図１

静電荷像現像用トナー及びその製造方法

(57)【要約】 【課題】 低温定着性、帯電安定性に優れ、定着性、耐 オフセット性、耐ブロッキング性に優れ、得られたＯＨ Ｐ透明性が良好な静電荷像現像用トナー及びその製造方 法の提供。 【解決手段】 １．少なくとも樹脂粒子が分散されてな る分散液中で凝集粒子を形成させ、次いで凝集粒子を構 成樹脂のガラス転移点（Ｔｇ）より２０〜８０℃高い温 度に加熱し、融着させてトナー粒子を形成させ、更にそ の表面に樹脂微粒子を付着させ、カプセルトナーを形成 することを特徴とする静電荷像現像用トナーの製造方 法。 ２．１項に記載の方法により製造された静電荷像現像用 トナー。

Process for production of fine cellulose fiber dispersion

静電荷像現像用トナー

【課題】 定着性、耐オフセット性に優れる静電荷像現像用トナーを提供する。 【解決手段】 重合体一次粒子を含有する粒子凝集体からなる静電荷像現像用トナーに おいて、該重合体一次粒子が、実質的にワックスを内部に包含した構造を有する事を特徴とする静電荷像現像用トナー。該重合体一次粒子は、予めワックスエマルションを調製し、該ワックスエマルションをシードとして乳化重合して得られる重合体一次粒子である。 【選択図】 なし

Toner for the developement of electrostatic image and process for the preparation thereof

The present invention provides a process for the preparation of a novel toner satisfying a high resolution, a low temperature fixability and a high offset resistance at a low cost. A novel toner for the development of an electrostatic image is provided comprising an agglomerate of particles containing at least primary polymer particles, wherein said primary polymer particles substantially comprise a wax encapsulated therein.

電圧発生装置、センサー及びアクチュエータ

【課題】外力に対し発生する電圧が高い電圧発生装置と、この電圧発生装置を用いたアクチュエータ及びセンサーを提供する。【解決手段】電極Ａ、電極Ｂ、及び前記電極Ａと前記電極Ｂとの間の誘電体を有する電圧発生装置であって、前記電極Ａと前記電極Ｂの仕事関数の差が０．１ｅＶ以上であり、前記誘電体の変形により前記電極Ａと前記電極Ｂの間に電圧が発生する電圧発生装置。電極Ａ、電極Ｂ、及び前記電極Ａと前記電極Ｂとの間の誘電体を有するセンサー及びアクチュエータ。【選択図】図３

電圧発生装置、センサー及びアクチュエータ

【課題】外力に対し発生する電圧が高い電圧発生装置と、この電圧発生装置を用いたアクチュエータ及びセンサーを提供する。【解決手段】電極Ａ、電極Ｂ、及び前記電極Ａと前記電極Ｂとの間の誘電体を有する電圧発生装置であって、前記電極Ａ、電極Ｂを接近させる方向に６３．７ｇ／ｃｍ２の荷重を加えると前記電極Ａと前記電極Ｂの間に１５０ｍＶ以上の電圧が発生する電圧発生装置。電極Ａ、電極Ｂ、及び前記電極Ａと前記電極Ｂとの間の誘電体を有し、前記電極Ａ、電極Ｂを接近させる方向に６３．７ｇ／ｃｍ２の荷重を加えると前記電極Ａと前記電極Ｂの間に１５０ｍＶ以上の電圧が発生するセンサー及びアクチュエータ。【選択図】図３

ゴム改質剤、ゴムラテックス分散液及びゴム組成物

【課題】セルロース繊維を用いたゴム改質剤であって、高い破壊強度を維持しながら、弾性率が高いゴム組成物を得ることができるゴム改質剤を提供する。 【解決手段】セルロース繊維からなるゴム改質剤であって、該セルロース繊維の数平均繊維径は８０ｎｍ以下であり、該セルロース繊維は、０．１重量％の水分散液としたときの、２５℃において測定される、ずり速度１００ｓ −１ における粘度が３．０ｍＰａ・ｓ以上、１０ｍＰａ・ｓ以下であるゴム改質剤。該ゴム改質剤を含有するゴム改質剤分散液。該ゴム改質剤とゴムラテックスとを含有するゴムラテックス分散液。該ゴム改質剤とゴムとを含有するゴム組成物。該ゴムラテックス分散液を用いて製造されたゴム組成物。該ゴム組成物を加硫して製造された加硫ゴム組成物。 【選択図】なし