11.
    发明专利
    未知

    公开(公告)号:DE2810072A1

    公开(公告)日:1978-09-21

    申请号:DE2810072

    申请日:1978-03-08

    Abstract: A tintable coating composition is provided. It includes (A)(1) hydrolysates of silane compounds containing at least one epoxy group and not less than two alkoxy groups which are directly bonded to Si atom in the molecule, and, if necessary, (2) compounds containing silanol and/or siloxane groups in the molecule, and/or epoxy compounds; (B) fine silica particles having an average diameter of from about 1 to about 100 m mu ; and (C) an aluminum chelate compound having the general formula AlXnY3-n, where X is OL (and L represents a lower alkyl group), Y represents one or more ligands produced from a compound selected from the group consisting of M1COCH2COM2 and M3COCH2COOM4 where all of M1, M2, M3 and M4 are lower alkyl groups, and wherein n is an integer comprising 0, 1 or 2. This invention also concerns an article, preferably plastic, coated with said coating composition and having a hard and tintable, scratch-resistant film, which is formed by heating and curing.

    POLYSACCHARIDE-CONTAINING COMPOSITION AND TEAR FILM STABILIZING OPHTHALMIC SOLUTION

    公开(公告)号:CA2549737A1

    公开(公告)日:2005-05-26

    申请号:CA2549737

    申请日:2004-11-10

    Abstract: A composition excelling in safety that when locally administered to mammals, can be uniformly dispersed over the mucous tissue; and an ophthalmic solutio n containing the composition that can stabilize the tear film and can keep the tear film on the surface of the eyeball smoothed. There is provided an ophthalmic solution comprised of an agar-containing composition, the composition comprising as essential components a polysaccharide, especially agar, and water, wherein upon centrifugal separation with 40,000.times.g by means of a centrifugal separator, the amount of precipitated agar is less th an 65 wt.% based on the total amount of agar contained. It is found from result s of a corneal surface crook index change test that this ophthalmic solution h as an excellent tear film stabilizing activity. Therefore, this agar-containing ophthalmic solution exhibits an effect of sustaining the tear film on the surface of the eyeball in stable form over a prolonged period of time and th us can be used as an artificial tear fluid.

    SPIRO-OXAZINE COMPOUND
    17.
    发明专利

    公开(公告)号:CA1335503C

    公开(公告)日:1995-05-09

    申请号:CA594065

    申请日:1989-03-17

    Abstract: A spiro-oxazine compound represented by the following general formula (A) or (A') is a photochromic compound having an excellent fatigue resistance to repetition of color development and decolorization and an abundance of hues: (A) or ( A') wherein the .alpha. ring is a ring selected from a 5-membered ring having one N atom, a 5-membered ring having one N atom and connected to a benzene ring or naphthalene ring and a 6-membered ring having one N atom, with the proviso that the N atom in the .alpha. ring is bonded to an organic group R0 as expressed as >N-R0 (in which R0 is a substituent selected from C1-20 alkyl, C2-20 alkenyl, C7-20 aralkyl and C6-19 aryl), the .beta. ring is a benzene or naphthalene ring, X is selected from O, S, Se and N-R1 (in which R1 is selected from H, C1-20 alkyl, C2-20 alkenyl, C7-20 aralkyl, C6-19 aryl and C2-20 acyl), R2 and R3 is selected from -OH, C0-20 amino, C1-20 alkoxy, C7-15 aralkoxy, C6-14 aryloxy, C2-20 acyloxy, C1-20 alkyl, C2-20 alkenyl, C7-15 aralkyl, C6-14 aryl, halogen, cyano, carboxyl, nitro (not included in R3), C2-20 acyl, C2-20 alkoxycarbonyl, C1-20 carbamoyl, C2-20 carbamoyloxy, sulfonic acid (with the proviso that hydrogen is included in R3), and k is an integer of 0 to 2.

    18.
    发明专利
    未知

    公开(公告)号:DE69104785T2

    公开(公告)日:1995-04-13

    申请号:DE69104785

    申请日:1991-01-11

    Abstract: An all solid type electrochromic display device (1) comprises first (4) and second (7 )conductive layers and sandwiched between them, at least an electrochromic layer (5) of tungsten oxide and a solid electrolyte layer (6). The tungsten oxide of the electrochromic layer (5) has an absorption spectrum, as measured by FT-IR, which meets the following formulae (A) and (B): wherein 1400, 1800, 2500, and 4000 and 3400 respectively represent the absorbance of 1400cm , 1800cm , 2500cm , 4000cm and 3400cm and A* represents the highest absorbance within a range from 1600cm to 1650cm . The electrochromic display device is produced by vacuum depositing the tungsten oxide electrochromic layer on another layer, introducing oxygen as a reaction gas at pressure of from 2 X 10 to 1 X 10 torr, at deposition rate of from 0.2 to 0.4nm/second and at a substrate surface temperature of from 20 DEG C to 180 DEG C.

    20.
    发明专利
    未知

    公开(公告)号:DE3789547D1

    公开(公告)日:1994-05-11

    申请号:DE3789547

    申请日:1987-10-27

    Abstract: Disclosed is an anti-reflection optical article which has an excellent anti-reflection property, scratch resistance, impact resistance, flexibility, anti-static property and weatherability, and which is easy to dye. The anti-reflection optical article of the present invention comprises a transparent plastic substrate; a hard coat film formed on a surface of the substrate, the film having an index of refraction of not less than 1.52; and a fluorine-containing organopolysiloxane-based film with a thickness of 10 nm to 500 nm, which has an index of refraction lower than that of the hard coat film by not less than 0.02, and which is formed on the hard coat film.

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