Toyota Jidosha Kabushiki Kaisha

Toray Industries, Inc.

Toyota Boshoku Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Adeka Corporation

Takemoto Yushi Kabushiki Kaisha

Toyota Tsusho Corporation

Asahi Denka Co., Ltd.

Toyota Auto Body Co., Ltd.

Toyota Boshoku Co. Ltd.

Hisashi Okuyama

Takeshi Kanamori

Hirotaka Okamoto

Mitsuru Nakano

Hiroshi Urayama

Arimitsu Usuki

Etsuo Tobita

Naoshi Kawamoto

Yuhei Maeda

Tsuyoshi Urushihara

Masanori Hashiba

Takashi Inoh

Makoto Ouchi

Naomi Okuyama, Legal Representative

Hitoshi Saito

Hisato Takeuchi

Katsuhiko Mochizuki

Tatsuhiko Osaki

Takehiro Kato

Yuji Kageyama

Tomomichi Fujiyama

Kazuya Matsumura

Seiji Yamashita

Hideki Kawashiri

Yasumitsu Isobe

Osamu Mito

Mamoru Yasui

Yasumasa Horibe

Kousuke Tamaki

Eiji Sugiyama

Takashi Inou

An aliphatic polyester resin composition, useful for producing molded articles without causing deformation at the mold release time, has a non-copolymerized mixture of an aliphatic polyester resin including one or more polylactic acid resins and a crystallization nucleating agent including one or more metal salts of an aromatic sulfonate of Formula 1: 

Aliphatic polyester resin compositions, molded articles of aliphatic polyester resin and method of producing same

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

A polylactic acid resin composition in which polylactic acid is blended with dibasic acid bis(benzoylhydrazide) represented by general formula (I) below; and a process for producing heat-resistant polylactic acid resin moldings, wherein after the polylactic acid resin composition is melted, the polylactic acid resin composition melted is filled in a die of a molding machine and molded accompanied with crystallization, in which the temperature of the die has been set in a range not higher than the initiation temperature of crystallization and not lower than the glass transition temperature determined with a differential scanning calorimeter (DSC). (In the formula, R represents a alkylene, alkenylene, cycloalkylene, alkylene having an ether bond, or alkylene interrupted with a cycloalkylene, the groups each having 1 to 12 carbon atoms; and R, R, R, and Reach represent a hydrogen atom, halogen atom, alkyl, cycloalkyl, aryl, aralkyl, or alkylaryl, the groups each having 1 to 12 carbon atoms, or Rand Rand/or Rand Rbond to each other to form a five- to eight-membered ring.)

Polylactic acid resin composition, moldings, and process for production thereof

This invention provides a polylactic acid resin composition in which stereocomplex crystals of poly-L-lactic acid and poly-D-lactic acid can be selectively crystallized to obtain polylactic acid having a sufficiently high speed of crystallization and a sufficiently high ratio of stereocomplex crystal and a molded article thereof obtained via melt molding and crystallization of the same. Such polylactic acid resin composition comprises polylactic acid capable of generating stereocomplex crystallization and an aromatic urea compound represented by formula (1): wherein Rrepresents an alkylene group having 1 to 10 carbon atoms; Rrepresents an alkyl group having 1 to 25 carbon atoms; and m is an integer between 1 to 6.

Polylactic acid resin and composition and molded article of the same

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

The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.

Polylactic acid composite material and molded body

A polylactic acid resin composition comprising 100 parts by weight of a polylactic acid, (A) 0 to 10 parts by weight of a phenol antioxidant, and (B) 0.01 to 10 parts by weight of at least one amide compound selected from the group consisting of (b-1) an acyclic amide, (b-2) a cyclic amide, (b-3) an acyclic hydrazide, and (b-4) a cyclic hydrazide or (b-5) a compound represented by formula (P):wherein Rand Reach represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or an aryl group having 6 to 18 carbon atoms, or they are connected to each other to form a ring to make a condensed ring having a total carbon-atom number of 10 to 18; R represents a single bond, an n-valent hydrocarbon group having 2 to 30 carbon atoms, an n-valent heterocyclic group or a group of formula:

Polylactic acid resin composition and molded article thereof, and process of producing the molded article

Growing community of inventors

Aichi, Japan

Hisashi Okuyama