Agc Inc.

Asahi Glass Company, Limited

Keigo Matsuura

Hiroki Hotaka

Kazuhiko Shiono

Taiki Hoshino

Makoto Uno

Eiichiro Anraku

Satoshi Okada

Daisuke Kobayashi

Hiromasa Yamamoto

Hideyuki Takahashi

Yutaka Furukawa

Masahiro Ito

Yusuke Tomiyori

Motoshi Aoyama

Masayuki Kawashima

Sayuri Yamada

Nanako Nishimoto

Sayuri Higashitamori

Kunio Watanabe

Koichi Murata

Kenji Ishizeki

Koki Watanabe

Hiroshi Funaki

Kiyotaka Takao

Teppei Konishi

Lilin Zhou

Noriaki Miyake

Toyokazu Enta

Ryuta Takashita

Takafumi Kawakami

Naoki Katsuki

Kotaro Yamada

Jun Irisawa

Ng Soon Yeng

The composition containing a compound represented by the formula (1) and a compound represented by the formula (2),R—(OX)—O—R—Y—[Si(R)L]  (1)[L(R)Si]—Y—R—(OX)—O—R—Y—[Si(R)L]  (2),where Rto R, Xto X, Yto Y, Rto R, Lto L, m1 to m2, n1 to n3, and g1 to g3 are as defined in the disclosure. An article, containing a substrate and a surface layer formed of the composition on the substrate.

Composition containing a fluorinated ether compound

An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength λwithin a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than λwhen the concentration is adjusted such that a transmittance at λis 10%, and λis 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength λwithin a range of 720 to 770 nm. (3) A value obtained by subtracting λfrom λis 30 nm or more and 85 nm or less.

Optical filter and imaging device

A fluorinated ether compound and a composition capable of forming a light resistant surface layer and an article are provided. The fluorinated ether compound of the present invention has a poly(oxyfluoroalkylene) chain, a reactive silyl group and a group (A) represented by &#x2014;NR&#x2014;C(O)&#x2014; (wherein R is a hydrogen atom or an alkyl group), wherein the carbonyl carbon in the group (A) is bonded to a carbon atom, and the poly(oxyfluoroalkyiene) chain is located at the nitrogen end of the group (A).

Fluorine-containing ether compound, composition and article

An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength &#x3bb;within a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than &#x3bb;when the concentration is adjusted such that a transmittance at &#x3bb;is 10%, and &#x3bb;is 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength &#x3bb;within a range of 720 to 770 nm. (3) A value obtained by subtracting &#x3bb;from &#x3bb;is 30 nm or more and 85 nm or less.

An optical filter includes an absorption layer which increases a visible light transmittance while having a good near-infrared blocking characteristic, and which is excellent in not only adhesiveness with respect to a layer to be abutted, but also light resistance. The optical filter includes: an absorption layer containing a near-infrared absorbing dye containing a squarylium-based dye and a transparent resin; and an inorganic or organic material in contact with the absorption layer. The squarylium-based dye has a squarylium skeleton and condensed ring structures bonded thereto respectively on both sides thereof, the condensed ring structures each including a benzene ring and a nitrogen atom as an annular atom, each benzene ring having an urethane structure in the second position.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it. A fluorinated ether compound represented by A-O&#x2014;(RO)&#x2014;R-Z-Q(R), wherein A is a Cperfluoroalkyl group, Ris a linear fluoroalkylene group, m is an integer of from 2 to 500, Ris a linear fluoroalkylene group, Zis a single bond, &#x2014;(CRR)&#x2014; (wherein Rand Rare a hydrogen atom, a Cmonovalent organic group or the like, and c is an integer of from 1 to 10), a specific bond or a bivalent organic group having a specific bond, Qis a group having a (b+1) valent ring, Ris a monovalent organic group having at least one hydrolyzable silyl group, and b is an integer of at least 2.

Fluorinated ether compound, fluorinated ether composition, coating liquid, article and its production method

A fluorinated ether compound represented by A-O&#x2014;(RO)&#x2014;R&#x2014;[C(O)N(R)]-Q-C(R)[-Q-SiRL], wherein A is a Cperfluoroalkyl group, Ris a linear fluoroalkylene group, m is an integer of from 2 to 500, Ris a linear fluoroalkylene group, Ris a hydrogen atom or an alkyl group, p is 0 or 1, Qis a single bond or an alkylene group, Ris a hydrogen atom, a monovalent hydrocarbon group or the like, Qis an alkylene group, Ris a hydrogen atom or a monovalent hydrocarbon group, L is a hydrolyzable group, and n is an integer of from 0 to 2 is provided. A fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it are also provided.

A fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer and a method for producing it are provided. The fluorinated ether compound is represented by A-O&#x2014;(RO)-Q(R), wherein A is a C, perfluoroalkyl group, Ris a perfluoroalkylene group, m is an integer of from 2 to 500, (RO)a n d may consist of two or more types of RO differing in the number of carbon atoms, Qis a (b+1) valent perfluorohydrocarbon group which may have a hydroxy group, Ris a monovalent organic group having at least one hydrolyzable silyl group, b is an integer of at least 2, and the b Rmay be the same or different.

To provide a fluorinated ether compound capable of forming a surface layer excellent in fingerprint stain removability and abrasion resistance as before and more excellent in light resistance than ever. A fluorinated ether compound represented by A&#x2014;O&#x2014;(RO)&#x2014;A, wherein Ais a perfluoroalkyl group or the like, Ais &#x2014;Q[&#x2014;C(R)(R)]or the like, Ris a fluoroalkylene group, m is from 2 to 500, Qis a a+1 valent organic group, Ris &#x2014;Q&#x2014;Si(R)(R)(R), Ris a hydrogen atom, a halogen atom or the like, a is an integer of from 1 to 3, b is 2 or 3, Qis a single bond or a bivalent organic group, Ris &#x2014;Q&#x2014;Si(R)(R), Ris an alkyl group, Ris a hydrolyzable group or a hydroxy group, c, d and e are from 0 to 3, c+d+e is 3, c in at last one Ramong a plurality of Ris 2 or 3, Qis a bivalent organic group, Ris an alkyl group, Ris a hydrolyzable group or a hydroxy group, and g is from 1 to 3.

Provided is a near-infrared-absorbing dye increasing a visible light transmittance and having a near-infrared blocking characteristic. The near-infrared-absorbing dye has an absorption characteristic measured by dissolving the dye in dichloromethane satisfying the following requirements. &#x22c5;In an absorption spectrum at a wavelength of 400 to 800 nm, there is a maximum absorption wavelength &#x3bb;in a wavelength region of 670 nm or more. &#x22c5;The following relational expression is established between a maximum absorption constant &#x3b5;with respect to light with a wavelength of 430 to 550 nm and a maximum absorption constant &#x3b5;with respect to light with a wavelength of 670 nm or more, where &#x3b5;/&#x3b5;&#x2265;65. &#x22c5;In a spectral transmittance curve, an average transmittance of light with a wavelength of 430 to 460 nm is 94.0% or more when a transmittance at the maximum absorption wavelength &#x3bb;is set to 1%.

Near-infrared-absorbing dye, optical filter, and imaging device

An optical filter includes an absorption layer containing a near-infrared absorbing dye with an absorption characteristic in dichloromethane satisfying (i-1) to (i-3). (i-1) In an absorption spectrum of a wavelength of 400 to 800 nm, there is a maximum absorption wavelength &#x3bb;in 670 to 730 nm. (i-2) Between a maximum absorption coefficient &#x3b5;of light with a wavelength of 430 to 550 nm and a maximum absorption coefficient &#x3b5;of light with a wavelength of 670 to 730 nm, the following relational expression: &#x3b5;/&#x3b5;&#x2265;65 is established. (i-3) In a spectral transmittance curve, the difference between a wavelength &#x3bb;with which the transmittance becomes 80% on a shorter wavelength side than the maximum absorption wavelength with the transmittance at the maximum absorption wavelength &#x3bb;set to 10% and the maximum absorption wavelength &#x3bb;is 65 nm or less.

Squarylium-based dye for near-infrared optical filter

An optical filter whose transmitting characteristics for visible light are favorably maintained and at the same time, whose blocking characteristics for near-infrared light, in particular, with a large incident angle deteriorates less. The optical filter includes an absorption layer and a reflection layer, and satisfies the requirements: in a spectral transmittance curve for a 0&#xb0; incident angle, an average transmittance for 430 to 620 nm wavelength light is 65% or more, and a wavelength exhibiting a 50% transmittance is in a 600 to 700 nm wavelength; in a 615 to 725 nm wavelength, an average value of absolute values of differences in transmittance between the spectral transmittance curve for the 0&#xb0; incident angle and 30&#xb0; incident angle is 8%/nm or less; and in a spectral transmittance curve for a 60&#xb0; incident angle, the maximum transmittance for 730 to 1000 nm wavelength light is 15% or less.

Near-infrared light blocking optical filter having high visible light transmission and an imaging device using the optical filter

A negative photosensitive resin composition comprising an alkali-soluble resin or alkali-soluble monomer which has a photo-curability, a photopolymerization initiator, and an ink repellent agent which has a fluorine atom content of from 1 to 45 mass % and which is a partially hydrolyzed condensate of a hydrolyzable silane compound mixture containing a hydrolyzable silane compound having a hydrolyzable group and an organic group having a polyfluoroalkyl group which has an etheric oxygen atom; a cured resin film and partition walls formed by using the negative photosensitive resin composition; and an optical element having the partition walls located between a plurality of dots and their adjacent dots on a substrate surface.

Growing community of inventors

Chiyoda-ku, Japan

Keigo Matsuura