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WO/1997/034186A1 |
The present invention provides improved electrochromic layers, which comprise polymeric matrices with electrochromic solutions interspersed therein. Varying an electrical potential difference across a layer of the invention results in re...
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WO/1997/030135A1 |
The electrochromic system proposed contains at least one oxidizable substance RED1 and at least one reducible substance OX2 each of which changes from a colourless or only slightly coloured form into a coloured form by virtue of an incre...
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WO/1997/030134A1 |
The electrochromic system proposed includes at least one reducible substance OX2 and at least one oxidizable substance RED1 cross-linked to each other by a bridging unit. The system is suitable for use in electrochromic devices.
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WO/1997/026661A1 |
Describes an electrochromically active iridium oxide film of iridium, oxygen and nitrogen, wherein the ratio of atomic oxygen to iridium is from 3.2:1 to 3.4:1 and the amount of nitrogen in the film is from 11 to 13 atomic percent. Descr...
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WO/1997/025357A1 |
The gels are for thermotropic layers are obtained by irradiation with high-energy light of a mixture containing the following: a) a non-cross-linked polymer with a number average molecular weight Mn of between 1,000 and 30,000 g/mol; b) ...
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WO/1997/025358A1 |
The gels are for thermotropic layers and are obtained by irradiation with high-energy light of a mixture containing the following: a) a non-cross-linked polymer in a quantity of less than 5 wt % of the sum of components a), b) and c); b)...
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WO/1997/023578A1 |
Tin oxide doped with an electrochromically effective amount of a metal, e.g. antimony or niobium, which provides a color change when the doped tin oxide is exposed to an electrochemical potential in the presence of mobile ions. Particles...
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WO/1997/022895A1 |
Described are novel reversible photochromic naphthopyran compounds, examples of which are 3H-naphtho[2,1-b]pyrans having an acyl or aroyl oxy-bearing substituent at the number 6 carbon atom and certain substituents at the 3-position of t...
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WO/1997/021698A1 |
Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds fused on the naphtho-portion of the naphthopyran ring with an indeno group or certain heterocyclic substituents. Certain substi...
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WO/1997/020168A1 |
A motor vehicle headlight with a high-pressure gas discharge lamp (6) arranged inside a reflector contains an electronic choke (8) arranged in a housing (1) to operate the high-pressure gas discharge lamp. The housing (1) is heat-conduct...
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WO/1997/020239A1 |
Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, examples of which are substituted with an oxy-bearing substituent at the number 8 carbon atom and with either an alkyl group at the number 7 carbon atom or wit...
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WO/1997/015565A2 |
The disclosure relates to a photochromic compound with diaryl-3H-naphthopyrane structure which in position 8 has a heterocycle linked via a nitrogen atom. The heterocycle can also have a hindered amine light stabilizer (HALS) compound as...
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WO/1997/015607A1 |
N-Oxides of nitrogenous heterocycle or nitrogenous fused heterocycle polymers of general formula (1) or (7) (wherein any two of a, b, c, d, e, f, g and h are carbon atoms participating in the bonding between repeating units; at least one...
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WO/1997/010241A1 |
The invention concerns photochromic compounds with formula (I), in which R1 is an asymmetric aliphatic monocyclic group with formula (II), where 1 = 1-12, and R9 is H or an alkyl, alkoxy, dialkylamino, alkyl ester or CN group with the co...
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WO/1997/008573A1 |
The invention concerns photochromic compounds having formula (I), where R1 is a polycyclic group formed by at least one alicyclic group linked to, bridged or condensed, with at least one other aliphatic and/or aromatic ring, which rings ...
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WO/1997/006944A1 |
A polymeric material comprising main chain ether groups or side chain alkoxylated groups that is effective as a carrier of photochromic additives. The polymeric material preferably has a glass trnsition temperature of at least 125 �F a...
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WO/1997/006455A1 |
A naphthopyran compound represented by formula (I); wherein R4, R5, R6, R7, R8, R9, R10 and R11 are each selected from the group consisting essentially of hydrogen, a first stable organic radical, a heterocyclic groug, halogen, a first n...
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WO/1997/005213A1 |
A photochromic monomer having formula (1), wherein n is an integer of 0 to 5; P is a photochromic dye moiety or derivative thereof; S is an organic spacer group; and R is a polymerisable group.
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WO/1997/003373A1 |
The invention relates to photochromic transparent organic materials presenting an index of refraction of more than 1.55, which are free of optical distortions and are prepared by radical polymerization of a polymerizable composition comp...
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WO/1996/037573A1 |
A photochromic product of curing is produced by irradiating a photopolymerizable composition comprising: (A) a radical-polymerizable monomer, (B) an ultraviolet polymerization initiator exhibiting a main absorption in the ultraviolet reg...
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WO/1996/037574A1 |
A photochromic curable composition prepared by blending a monomer mixture comprising: (A) a compound having at least one epoxy group in the molecule (e.g., glycidyl methacrylate), (B) polypropylene glycol di(meth)acrylate, (C) polyethyle...
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WO/1996/037575A1 |
A process for the production of a photochromic product of curing by mixing a mixture comprising a polyfunctional (meth)acrylate monomer (e.g., crude polyalkylene glycol dimethacrylate containing impurities) and a photochromic spiro-oxazi...
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WO/1996/037576A1 |
The present invention provides for light fatigue resistant photochromic compositions including a unique combination of hindered aminoether light stabilizer ("HAELS") compounds to extend the usable lifetime of naphthopyran photochromic co...
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WO/1996/030357A1 |
Novel spiropyran compounds, particularly with photochromic properties, are disclosed, as well as photochromic compositions and ophthalmic articles (e.g. lenses) containing said compounds. The photochromes have been designed so as to have...
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WO/1996/028757A1 |
The invention relates to non-linear optically active (NLO) polycarbonates and to NLO active waveguides containing these polycarbonates. Waveguides containing these NLO polycarbonates have a low loss of signal, a high glass transition tem...
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WO/1996/019741A1 |
The invention relates to organic photochromic materials consisting of a polymer matrix of optical quality and of at least one dye that imparts photochromic properties to the matrix, the dye being selected from spirooxazines, spiropyrans ...
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WO/1996/018921A1 |
A process for preparing a cross-linked polymeric article, which process includes: providing a cross-linkable polymeric casting composition; and a photochromic composition; subjecting the cross-linkable polymeric casting composition to pa...
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WO/1996/018926A1 |
The invention relates to photochromic transparent organic materials particularly useful for the production of photochromic organic ophthalmic lenses. The material includes an optical-quality polymer matrix and at least one coloring agent...
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WO/1996/018927A1 |
A photochromic light-transmissible article including a glass or a polymeric article including a photochromic dye or pigment; and a coating on the glass or polymeric article which selectively reflects the red, infrared (IR) and near infra...
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WO/1996/014596A1 |
Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho port...
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WO/1996/011926A1 |
Described are novel reversible photochromic naphthoxazine compounds having improved photocolorability. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or o...
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WO/1996/010593A1 |
A process is disclosed for preparing aqueous solutions of poly(N-vinyl-'epsilon'-caprolactam) by polymerising poly(N-vinyl-'epsilon'-caprolactam) in an aqueous medium in the presence of polymerisation initiators and 0.1 to 20 % by weight...
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WO/1996/007487A1 |
The present invention discloses a method of producing a thin film structure from particles of nanometre dimensions comprising forming at least one layer of metal or semi conductor particles onto a substrate by treating the substrate with...
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WO/1996/004590A1 |
6'-cyano or phenylsulphonyl-substitued spiro[indoline-[2,3']-benzoxazine]-type photochromic compounds, wherein said cyano or phenylsulphonyl group is bound to the 6' carbon atom by the sulphur atom, and having a 7', 8'-condensed benzene ...
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WO/1996/003368A1 |
The present invention relates to a method for the preparation of photochromic compounds having the spiro[indolin-[2,3']-benzoxazine] ringed structure (formula III), comprising the reaction of a Fischer base of the alkylideneindolin type ...
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WO/1996/003475A1 |
The present invention provides electrochromic layers, which comprise polymeric matrices with electrochromic solutions interspersed therein. Varying an electrical potential difference across a layer of the invention results in reversible ...
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WO/1996/002017A1 |
The invention relates to electrochromic materials based on organic compounds. The proposed electrochromic compound consists of: di(dicarbaundecaborate)1,1'-dimethyl-4,4'-dipyridine or di(dicarbaundecaborate)1,1'-dibenzyl-4,4'-dipyridine ...
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WO/1996/001883A1 |
The description relates to an object of synthetic material, especially a plastic spectacle lens, tinted with at least one photochromatic substance which is also excited by light in the u/v region of the spectrum and, in the excited state...
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WO/1996/001884A1 |
The description concerns a photochromic substance, with a diaryl-2H-naphthopyrane structure having a link in the form Y-Ar, Z-Ar, Y-Ar-Y, Y-Ar-Y', Y-Ar-Z, Z-Ar-Z or Z-Ar-Z', in which Y, Y', Z and Z' are pyranes. The photochromic substanc...
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WO/1995/028663A2 |
Electrochromic thin films and components thereof are disclosed, in particular an improved electrochromic thin film based on tugsten oxide and/or molybdenum oxide and incorporating alkali ions, an electrolyte with, in particular, improved...
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WO/1995/027914A1 |
Described are novel reversible photochromic diaryl-3H-naphtho[2,1-b]pyran compounds having a substituted or unsubstituted, five or six member heterocyclic ring fused to the g, i, or 1 side of the naphthopyran. The heterocyclic ring conta...
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WO/1995/024409A1 |
A novel compound suitable for use as a photochromic material. It is a salt of a spiropyran compound represented by general formula (1), with an acid compound, wherein R1 represents C1-C20 alkyl, aralkyl, hydroxyethyl, acryloxyethyl or me...
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WO/1995/024453A1 |
Radiation-induced cross-linked polymer systems with reversible, temperature-dependent radiation transmission are disclosed, as well as a process for producing the same and their use for the reversible, temperature-dependent control of th...
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WO/1995/016215A1 |
Novel photochromic 2H-naphtho[1,2-b]pyrans with a 5-carboxyl or amido substituent and having an acceptable fade rate, high activated intensity and a high coloration rate are useful in photochromic articles such as ophthalmic lens.
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WO/1995/007275A1 |
The invention concerns compounds of formula (I ou II), or their salts, in which the radicals have for instance the following meaning: R1 and R2 are each hydrogen, C1-C8 alkyl, cyano or -NO2 or together are (-CF2-)m, -CF(OCH3)-CF2-CF(OCH3...
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WO/1995/005382A1 |
A heterobenzopyran compound of general formula (I), wherein R1 represents a five-membered heterocyclic group containing one or more hetero atoms and fused either to the f-face or the g-face of the benzo moiety of the benzopyran skeleton,...
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WO/1995/005385A1 |
A spiro(indolino) oxazine compound of general formula (I), wherein R1 represents a group of the formula -NR2R3, wherein each of R2 and R3, which may be the same or different, independently represents an alkyl group, or a carbocyclic grou...
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WO/1995/004086A1 |
A process is disclosed for producing a photosensitive object that consists of a polymer and contains at least one spirooxazin compound. The process has the following steps: an acrylate monomer or a methacrylate monomer or a mixture of se...
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WO/1995/003343A1 |
Proton-transfer, low self-absorbing chromophores of formula (1) wherein R2 and R3 are independently hydrogen, alkyl, aryl, cyano, nitro, halo or an ether group, R4 is O or N-H, and R5 is thienyl, naphthyl, furanyl, pyrrolyl, phenyl vinyl...
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WO/1995/000519A1 |
Described are photochromic compounds for, in particular, the colouring of transparent elements made of plastic material. The molecules of the compounds proposed carry at least two photochromic subsystems which are not indolinospiropyrans.
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