Toyota Jidosha Kabushiki Kaisha

Toyota Boshoku Kabushiki Kaisha

Mitsui Chemicals, Inc.

Toray Industries, Inc.

Toyota Tsusho Corporation

Toyota Auto Body Co., Ltd.

Toyota Boshoku Co. Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Takashi Inoh

Yoshiyuki Murata

Yuhei Maeda

Masanori Hashiba

Hideaki Otsuka

Hisashi Okuyama

Hiroshi Urayama

Kazuto Usaka

Hiroyuki Utsumi

Koichi Sano

Tatsunori Shindo

Tsuguyoshi Sakai

Yoshihiro Iwano

Nobuhiro Koyota

Hirokazu Otsubo

Kazutomo Isonaga

Tsutomu Fukui

Kazunobu Ishibashi

Katsuhiko Mochizuki

Takehiro Kato

Yuji Kageyama

Kazuya Matsumura

Tomomichi Fujiyama

Hideki Kawashiri

Kiyoshi Uzawa

Koichiro Hayashi

Osamu Mito

Mami Sakaguchi

Manato Kanesaki

Kousuke Tamaki

Eiji Sugiyama

A tank production method for preventing generation of non-uniform stacked portions in a sheet layer while securing the strength of the tank, the method including a winding step of winding resin-impregnated fiber sheets to form a sheet layer with a predetermined thickness. The winding step includes divided winding steps of winding divided fiber sheets obtained by dividing a fiber sheet into a plurality of divided fiber sheets having a length shorter than the length required to form the sheet layer with the predetermined thickness. The second divided winding step or each of the second and following divided winding step satisfies an Inequality: X&#x3e;(&#x3c3;&#xb7;t&#xb7;L)/(A&#xb7;W), where an overlapped length of the start end of a new divided fiber sheet stacked on the terminal end of the divided fiber sheet wound in the preceding divided winding step is X, the tensile stress applied to the tank in the circumferential direction thereof is &#x3c3;, the thickness and width of each divided fiber sheet are t and W, respectively, the length of a cylindrical portion of the tank is L, and the shearing strength of the resin is A.

Tank production method and tank

A high-pressure tank includes a liner, a release agent layer disposed on a surface of the liner, and a reinforcing layer disposed on the release agent layer. The reinforcing layer includes a resin and a fiber. The thickness of the release agent layer is equal to or smaller than the diameter of the fiber of the reinforcing layer.

High-pressure tank

A manufacturing method of a tank including a tubular body portion, and dome-shaped side end portions formed on both sides of the body portion, the manufacturing method includes forming a tubular compact serving as at least part of the body portion from one fiber reinforced resin sheet by winding the fiber reinforced resin sheet including reinforced fibers impregnated with thermoplastic resin is wound several times around a peripheral surface of a core from a direction perpendicular to an axial center of the core in a state where the thermoplastic resin is melted.

Tank manufacturing method and tank

A method of producing a fiber-reinforced resin-molded member includes: preparing a mold including an upper mold and a lower mold forming a cavity, a cavity surface of either the upper mold or the lower mold being provided with a projecting portion; disposing a fiber-reinforcing material in the cavity, closing the molds to generate a state in which the projecting portion presses a part of the fiber-reinforcing material, and filling the cavity with a melted resin to impregnate the fiber-reinforcing material with the melted resin and cure the melted resin; and opening the molds to obtain a fiber-reinforced resin-molded member having an exposed portion and an embedded portion. The exposed portion includes at least a portion pressed by the projecting portion while the molds are closed.

Method of producing fiber-reinforced resin-molded member, and method of connecting members

An object of the invention is to provide molded urethane foam pads and vehicle seats that can contribute to the reduction of environmental load and have appropriate impact resilience and hardness and excellent durability with good balance, and also have high comfort. A molded urethane foam pad for vehicle seats including a polyurethane is obtainable by foaming and curing materials including a plant-derived polyol (A), a non-plant-derived polyol (B), water, a catalyst, a foam stabilizer and a polyisocyanate, and has a core density of 55 to 65 kg/mas measured in accordance with JIS K6400; the plant-derived polyol (A) is a polyol which is obtained by condensing a polyhydric alcohol of 6 hydroxyl groups with a plant-derived, C15 or higher hydroxycarboxylic acid and which has a hydroxyl value of 45 to 55 mg KOH/g; the non-plant-derived polyol (B) is a polyol having a hydroxyl value of 18 to 26 mg KOH/g, and/or a polymer-dispersed polyol in which fine particles of a polymer of a compound having an unsaturated bond are dispersed in the polyol; and the polyurethane contains a plant-derived molecular structure and the content of the plant-derived molecular structure is 15 to 20 wt % based on 100 wt % of the molded urethane foam pad.

Molded urethane foam pad for vehicle seats, vehicle seat, and processes for the production thereof

The invention provides a method for manufacturing a molded woody article, which includes compression molding a base material containing wood fibers, polylactic acid fibers and an inorganic filler at a temperature not less than a melting point of the polylactic acid fibers, and maintaining the molded base material at a temperature close to a crystallization temperature of the polylactic acid fibers for a desired period of time, thereby crystallizing the polylactic acid fibers. In the molding step, the base material is entirely deformed and molded into a desired shape while the polylactic acid fibers are melted, and in the crystallizing step, the polylactic acid fibers are solidified, thereby producing the molded article. In the crystallizing step, polylactic acid crystallizes rapidly and reliably utilizing the inorganic filler as a crystal nucleating agent.

Process for producing woody molding

To provide a fiberboard capable of reducing a load on the environment at all states of producing, using, and abolishing and moreover having a high degree of bending strength and a high bending-strength retention rate at high temperature and high humidity so as to be usable for an automobile interior material or building material and a fiber-board producing method. The fiberboard is formed by mixing natural fiber with polylactic acid resin serving as a binder and has an apparent density of 0.2 g/cm.

Fiber board and its producing method

Growing community of inventors

Okazaki, Japan

Takashi Inoh