Teijin Chemicals Limited

Teijin Limited

Tsukishima Kikai Co., Ltd.

Takehiro Suga

Tatsuya Ekinaka

Toshio Kita

Ryou Niimi

Shunsuke Kajiwara

Satoshi Ogata

Hiroshi Kishimoto

Masato Nakagomi

Tatsuichirou Kon

Nobuaki Takaoka

Ryo Niimi

Yume Morita

Tetsuya Shichi

Toshiaki Hotaka

Yoshihiko Imanaka

Makoto Yamashita

Yume Takeda

Sohei Okazaki

Isao Sogou

Junichi Miura

Keiichi Kashima

Yuji Kaneko

Daisuke Yoshioka

Yuta Toyoshima

The present invention is a polymer substrate with a hard coat layer, which is obtained by directly laminating a polymer substrate, a base cured layer and a silicon oxide layer, wherein the base cured layer has a thickness of 1-20 μm and contains 10-90 parts by weight of a polyfunctional acrylate and 90-10 parts by weight of inorganic oxide fine particles and/or a hydrolytic condensation product of a silicon compound or contains a hydrolytic condensation product of an organic silicon compound as a primary component, and the silicon oxide layer satisfies requirement (a1) below at a position 0.04 μm in the thickness direction from the interface between the base cured layer and the silicon oxide layer and satisfies requirement (a3) below at the surface of the silicon oxide layer on the opposite side from the interface,

Polymer substrate with hard coat layer

The present invention provides a polymer substrate with a hardcoat layer exhibiting excellent environmental resistance and wear resistance. A polymer substrate () is 1-20 mm thick and a hardcoat layer () on the surface thereof comprises: an underlayer cured layer () with a thickness of 1-20 &#x3bc;m, and including 10-90 parts by weight of a multifunctional acrylate, and 90-10 parts by weight of inorganic oxide fine particles and/or a silicon compound hydrolytic condensate; and a silicon oxide layer () which is in direct contract with the underlayer cured layer, is formed by PE-CVD with an organosilicon compound as the starter material, and satisfies all of the following conditions (a)-(c): (a) the film thickness of the silicon oxide layer is 3.5-9.0 &#x3bc;m; (b) the maximum indentation depth of the surface of the silicon oxide layer by nanoindentation measurement at a maximum load of 1 mN is 150 nm or less; and (c) the limit compression ratio K of the silicon oxide layer is at most 0.975 in a 3-point bending test of the polymer substrate with a hardcoat layer having been subjected to indentation deformation that causes the surface on which the silicon oxide layer is layered to be indented.

Polymer substrate with hardcoat layer, and manufacturing method for same

A laminate having excellent abrasion resistance to physical stimuli such as dust. The laminate comprises a base layer, a hard coat layer and a top coat layer comprising flaky metal oxide fine particles all of which are formed in this order. The flaky metal oxide fine particles are hardened by at least one method selected from the group consisting of ionizing material exposure, ionizing radiation exposure, infrared exposure, microwave exposure and high-temperature vapor exposure.

Laminate having a top coat layer containing flaky metal oxide fine particles

The present invention realizes a polymer substrate with hard coating layer comprising a high level of environmental resistance and a high level of abrasion resistance. A polymer substrate with hard coating layer is provided that comprises a polymer substrate () having a thickness of 1 mm to 20 mm and a hard coating layer () on the surface thereof. Here, in this polymer substrate with hard coating layer, the hard coating layer () is laminated on the surface of the polymer substrate, contains as a main component thereof a hydrolysis-condensation product of an organic silicon compound, has a thickness of 0.1 &#x3bc;m to 20 &#x3bc;m, makes direct contact with a cured underlayer on the opposite side of the polymer substrate, is formed from an organic silicon compound by PE-CVD, and satisfies all of the following requirements (a) to (c): (a) film thickness of the silicon oxide layer is within the range of 3.5 &#x3bc;m to 9.0 &#x3bc;m, (b) maximum indentation depth of the surface of the silicon oxide layer as determined by measuring nanoindentation under conditions of a maximum load of 1 mN is 150 nm or less, and (c) the value of critical compression ratio K of the silicon oxide layer, as defined by formula (1) in a 3-point bending test of the polymer substrate with hard coating layer that imparts indentation displacement in which the surface laminated with the silicon oxide layer becomes concave, is 0.975 or less.

Polymer substrate with hard coat layer and manufacturing method for such polymer substrate

It is an object of the present invention to provide a process capable of manufacturing various types of curved members having a high-grade design surface which are used as glazing members for means of transport such as automobiles at a low cost. The present invention is the process of manufacturing a curved member having a high-grade design surface, comprises the steps of:

Process of manufacturing a curved member having a high-grade design surface and member manufactured by the process

A laminate having excellent weatherability and abrasion resistance as well as adhesion. The laminate comprises a base, a first layer formed by thermally curing an acrylic resin composition and a second layer formed by thermally curing an organosiloxane resin composition, all of which are formed in the mentioned order, wherein the acrylic resin composition comprises: wherein X is a hydrogen atom or methyl group, and Y is a methyl group, ethyl group, cycloalkyl group, hydroxyalkyl group having 2 to 5 carbon atoms or triazine-based ultraviolet absorber residue;

Laminate of an acrylic resin composition layer containing triazine based ultra-violet compounds and an organosiloxane resin composition layer

It is an object of the present invention to provide a laminate having excellent weatherability and abrasion resistance as well as adhesion. The present invention relates to a laminate comprising a base, a first layer formed by thermally curing an acrylic resin composition and a second layer formed by thermally curing an organosiloxane resin composition, all of which are formed in the mentioned order, wherein wherein X is a hydrogen atom or methyl group, and Y is a methyl group, ethyl group, cycloalkyl group, hydroxyalkyl group having 2 to 5 carbon atoms or triazine-based ultraviolet absorber residue;

A laminate which is excellent in appearance, adhesion, scratch resistance, abrasion resistance and hot water resistance and has a high level of weatherability and excellent durability, and an acrylic resin composition and an organosiloxane resin composition both of which can be used for the manufacture of the above laminate and have excellent storage stability. The laminate comprises a polycarbonate substrate, a first layer formed on the surface of the polycarbonate substrate, and a second layer formed on the surface of the first layer, wherein the first layer is composed of a crosslinked acrylic copolymer and an ultraviolet light absorber, and the second layer is composed of a crosslinked organosiloxane polymer; and the crosslinked acrylic copolymer comprises specific recurring units and an urethane bond in a specific ratio, and the organosiloxane polymer has a specific structure composed of colloidal silica and alkoxysilanes.

Acrylic resin composition organosiloxane resin composition and laminate comprising the same

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Tokyo, Japan

Takehiro Suga