Kabushiki Kaisha Toyota Jidoshokki

Toyota Jidosha Kabushiki Kaisha

Shin-Etsu Chemical Co., Ltd.

Toagosei Company, Ltd.

Hisashi Muramatsu

Eiichi Okazaki

Kyoko Kumagai

Naoharu Ueda

Takeshi Fujita

Satoshi Yoneda

Masaaki Yamaya

Makoto Kato

Kazumasa Inata

Tetsuya Mitsuoka

Hiroaki Takashima

Koichi Higuchi

Toshihisa Shimo

Hidetaka Hayashi

Yasuyuki Sanai

Naomasa Furuta

Toshiro Kondo

Takayuki Nagai

Kenzo Fukumori

Toshio Watanabe

Ken Noda

Yuya Maruyama

Koichi Chigita

Hidenori Munekata

Hiroyasu Hiramatsu

Yosihide Katagiri

Masaaki c/o Silicone-Electronics Mat Research Ctr Yamaya

Koichi c/o Silicone-Electronics Mat Research Ctr Higuchi

Toshio Watabe

A resin window panel provided in a vehicle including a vehicle body that has a peripheral edge surrounding a window frame, the resin window panel that is attached to the peripheral edge with an adhesive containing a plasticizer, the resin window panel includes: a first resin panel part whose top surface has a hard coating layer, the first resin panel part made of polycarbonate; and a second resin panel part stacked on a backside surface of the first resin panel part, the second resin panel part made of polyethylene terephthalate.

Resin window panel and bonding structure of resin window panel and vehicle body

A member for vehicle according to the present invention includes a resinous substrate, and a protective film being formed on a surface of the resinous substrate partially at least. The protective film is made by curing a curing-type coating-agent composition containing: Component (A) (e.g., an isocyanuric ring-containing urethane (meth)acrylate compound) in an amount of from 20 to 80 parts by mass; Component (B) (e.g., an isocyanuric ring-containing tri(meth)acrylate compound free from any urethane bond) in an amount of from 10 to 70 parts by mass; Component (C) (e.g., a reaction product) between a colloidal silica and an alkoxysilane compound having a maleimide group) in amount of from 1 to 35 parts by mass; a radical-polymerization initiator serving as Component (D) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (E) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (F) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of the Component (A), the Component (B), and the Component (C) being taken as 100 parts by mass. Said protective film demonstrates excellent wear resistance and weatherability.

Member for vehicle and manufacturing process for the same

A curing-type coating-agent composition according to the present invention contains: Component (A) (e.g., an isocyanuric ring-containing urethane (meth)acrylate compound) in an amount of from 20 to 80 parts by mass; Component (B) (e.g., an isocyanuric ring-containing tri(meth)acrylate compound free from any urethane bond) in an amount of from 10 to 70 parts by mass; Component (C-1) (e.g., a reaction compound between a colloidal silica and an alkoxysilane compound having a maleimide group) in amount of from 1 to 35 parts by mass, or Component (C-2) (e.g., a specific organosilicon compound) in an amount of from 5 to 35 parts by mass; a radical-polymerization initiator serving as Component (D) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (E) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (F) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of the Component (A), the Component (B), and the Component (C-1) or the Component (C-2) being taken as 100 parts by mass. The aforementioned composition demonstrates excellent wear resistance and weatherability as a coating agent for plastic substrate, or the like, which is employed outside.

Curing-type coating-agent composition

A member for vehicle according to the present invention includes a resinous substrate, and a protective film being formed on a surface of the resinous substrate partially at least. The protective film is made by curing a curing-type coating-agent composition containing: Component (A) (e.g., an isocyanuric ring-containing urethane (meth)acrylate compound) in an amount of from 20 to 80 parts by mass; Component (B) (e.g., an isocyanuric ring-containing tri(meth)acrylate compound free from any urethane bond) in an amount of from 10 to 70 parts by mass; Component (C) including a specific organosilicon compound in an amount of from 5 to 35 parts by mass; a radical-polymerization initiator serving as Component (D) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (E) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (F) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of the Component (A), the Component (B), and the Component (C) being taken as 100 parts by mass. Said protective film demonstrates excellent wear resistance and weatherability.

A curable composition comprises (A) an organic/inorganic composite in which a hydrolyzable silyl group and/or SiOH group-containing polysiloxane is bonded to a vinyl polymer through a Si&#x2014;C bond, and (B) an organic UV absorber having a molecular weight of at least 500 and a weight retentivity of at least 95% when held at 150&#xb0; C. for 24 hours in an open state. The curable composition is coated and cured to an article, whereby the article is endowed with satisfactory weathering resistance while minimizing coloration or degradation.

Curable composition and coated article

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Kariya, Japan

Hisashi Muramatsu