Sumitomo Chemical Company, Limited

Nikon-Essilor Co., Ltd.

Tomonori Miyamoto

Yasuharu Shimazaki

Sayaka Sakurai

Motohiro Yamahara

Yoshihiro Harada

Atsushi Hozumi

Ryu Takeko

Chihiro Urata

Masayoshi Tokuda

Akiyoshi Kanemitsu

Hideyuki Wakiyasu

Michiru Uehara

Tomohiro Ito

Hiroyuki Kumasawa

Katsuyoshi Takeshita

An object of the present invention is to provide a laminate which has a substrate, an intermediate layer, and a water-repellent layer laminated in this order, and has excellent abrasion resistance. The present invention is a laminate comprising: a substrate (s) having an anti-reflection layer; an intermediate layer (c) placed on the anti-reflection layer side of the substrate; and a water-repellent layer (r), in this order, wherein the intermediate layer (c) is a cured layer of a mixture composition (cc) of an organosilicon compound (C), or a vapor deposition layer of the organosilicon compound (C), the organosilicon compound (C) contains a silicon atom together with an amino group and/or an amine skeleton, the water-repellent layer (r) is a cured layer of a mixture composition (ca) of an organosilicon compound (A) in which a monovalent group having a perfluoropolyether structure is bound to a silicon atom through a linking group or without a linking group located therebetween, and a hydrolyzable group is bound to the silicon atom through a linking group or without a linking group located therebetween, and the laminate satisfies the following requirement (1),

Laminate and production method therefor

A mixed composition comprising an organosilicon compound represented by the following formula (a1), a solvent, water, and a carboxylic acid compound, wherein a mass ratio of the water to the organosilicon compound is 30.0 or more. In the following formula (a1), a plurality of Aeach independently represent a hydrolyzable group, Zrepresents a hydrocarbon chain-containing group, x is 0 or 1. Rrepresents an alkyl group having 6 to 20 carbon atoms in which a part of methylene groups may be replaced with an oxygen atom and one or more hydrogen atoms may be replaced with a fluorine atom, and Zand Rmay be the same or different. 

Mixed composition

The object of the present invention is to attain water repellency as well as the heat resistance and the light resistance. the transparent film of the present invention comprises: a polysiloxane backbone; and a trialkylsilyl containing molecular chain bonded to a part of silicon atoms forming the polysiloxane backbone, wherein alkyl groups in the trialkylsilyl containing molecular chain may be replaced by fluoroalkyl groups, and the transparent film satisfies at least one of the relationships of:()/&#xd7;100(%)&#x2265;&#x2212;27(%); and()/&#xd7;100(%)&#x2265;&#x2212;15(%),

Transparent film

The object of the present invention is to provide a water/oil-repellent coating composition for forming a film capable of attaining both water/oil repellency and abrasion resistance. The water/oil-repellent coating composition comprises: an organosilicon compound (A) and a metal compound (B), wherein at least one first hydrocarbon chain-containing group and at least one hydrolyzable group are bonded to a silicon atom in the organosilicon compound (A), where in at least one hydrolyzable group is bonded to a metal atom in the metal compound (B), wherein a second hydrocarbon chain-containing group having a length shorter than the length of the first hydrocarbon chain-containing group may be bonded to the metal atom in the metal compound (B), and wherein a molar ratio of the metal compound B) to the organosilicon compound (A) as metal compound (B)/organosilicon compound (A) is not less than 18 and not more than 48.

Water/oil-repellent coating composition

The object of present invention is to provide a transparent film which further improves a slip characteristic of waterdrop. The present invention is a transparent film having a polysiloxane backbone, the transparent film having a structure (a) in which a fluorine-containing group having a perfluoroalkyl group or a perfluoropolyether group on the free end side thereof is bonded to a silicon atom of the polysiloxane backbone, and the transparent film having a slip rate of 0.2 mm/s or more for a 120 &#x3bc;l waterdrop on an 8&#xb0; incline. In preferred embodiment, the fluorine-containing groups are bonded to some silicon atoms of the polysiloxane backbone in structure (a), and the transparent film has a structure (b) in which carbon fluoride-containing groups or hydrolysable silane oligomer residue are bonded to some of the remaining silicon atoms of the polysiloxane backbone.

An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit, two prism filmsand, a first polarizing plate, a liquid crystal cellhaving a liquid crystal layer between a pair of substrates, and a second polarizing plateare disposed in the sequence. The prism filmsandare provided with a plurality of linear prisms in parallel on a light incident surface, the linear prisms having a polygonal and tapered cross section and an endmost vertex angle of 90&#xb0; to 110&#xb0;. The first polarizing plateand the second polarizing plateare disposed such that transmission axes thereof have a crossed Nicols relationship. The prism filmis disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the first polarizing plate, and the prism filmis disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the second polarizing plate

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Osaka, Japan

Tomonori Miyamoto