The invention is related to a colorant composition used for the color layer in a colored contact lens. The colorant composition improves the adhesion of the colorant to the surface of the contact lens and provides more hydrophilicity and biocompatibility. The colorant composition for the color layer comprises at least one hydrophilic monomer, an adhesive resin, a film-forming agent and a polydopamine-modified colorant.

The present invention relates to a wire coating composition comprising an infrared radiation sensitive compound resulting in the conversion of absorbed light energy into heat and a matrix with a varnish that responses either chemically or physically upon treatment with heat, to a method of producing an enameled wire and to the use thereof.

The present invention discloses a adhesive sheet effectively blocking light in the ultraviolet light region without deteriorating the transmittance with respect to the visible light region and the adhesiveness and a adhesive composition including binder resin and light absorption dye dispersed in the binder resin, and it is possible to effectively block light under the 410 nm wavelength region and to be applied to a various kinds of display devices.

A near infrared dye comprising a counterion and a structure of Formula I

##STR00001##

wherein the at least one of R.sub.1 and R.sub.2are 1-(thiophen-2-yl)piperidine, 1-(thieno[3,2-b]thiophen-2-yl)piperidine or 1-([2,2-bithiophen]-5-yl)piperidine, and X, R, R.sub.3-R.sub.4, R.sub.19, R.sub.20 and R.sub.22-R.sub.29 are disclosed herein. Materials and compositions comprising the NIR dye can absorb light in the NIR I & II regions and then the energy can be released in the form of light (fluorescence) or heat (non-radiative). The dyes can also convert the absorbed light to heat and ultrasound waves via the photoacoustic effect. The photoacoustic effect can be used in photoacoustic tomography to image biological materials or processes. Methods for synthesizing the NIR dyes and materials comprising the same are also disclosed.

The present invention relates to an optical filter containing: an absorption layer containing a near-infrared absorbing dye satisfying the following (i-1) to (i-5), and a transparent resin; and a reflection layer, and satisfying the following (ii-1); (i-1) ?.sub.max(A) TR is in a wavelength range of 760 to 900 nm; (i-2) T.sub.435-480ave (A) TR and T.sub.480-590ave (A) TR are both 90% or more. (i-3) ?.sub.max(A) DCM is in a wavelength range of 760 to 900 nm. (i-4) T.sub.435-480ave (A) DCM is 95% or more and T.sub.480-590ave (A) DCM is 97% or more. (i-5) a difference between T.sub.435-480ave (A) DCM and T.sub.435-480ave (A) TR, and a difference between T.sub.480-590ave (A) DCM and T.sub.480-590ave (A) TR are 10.5% or less. (ii-1) an average transmittance of light in the wavelength range of 800 to 900 nm is 5% or less at an incident angle of 60 degrees.

The present disclosure relates to a photovoltaic (PV) device that includes a color-conversion layer that includes at least one of a color-tuning layer and/or an intermediate layer and a photovoltaic layer where the color-conversion layer changes the appearance of the PV device when compared to a similar PV device constructed without the color-conversion layer, the color-conversion layer increases a power output of the PV device by at least one of reflecting light to the PV layer or emitting light which is redirected to the PV layer, and the device is at least partially transparent to light in the visible spectrum.

A method of obtaining a laundry care composition, the method comprising the steps of (a) reacting a reactive leuco compound with a polymer to form a leuco polymer and (b) mixing the leuco polymer with at least one laundry care ingredient. The reactive leuco compound comprises at least one leuco moiety and at least one nucleophilic group. The polymer comprises at least one group capable of reacting with said nucleophilic group. The leuco moiety has a maximum molar extinction coefficient at a wavelength in the range 400 to 750 nm of less than 1000 M.sup.1 cm.sup.1.

A fluorescent water-soluble polycationic chitosan polymer having a general formula (I) and salts thereof:

##STR00001## wherein a is an integer between 220 and 11,200; R.sub.1 and R.sub.2 are independently selected from the group consisting of CH.sub.3CO and H, provided that at least 25% of the O-positions of the chitosan polymer structure is substituted with CH.sub.3CO; R.sub.7 is selected from the group consisting of CH.sub.3CO, H and Dye, provided that (i) at least one Dye residue is present in the chitosan polymer structure, (ii) and at least 15% of the N-positions of the chitosan polymer structure is substituted with CH.sub.3CO; Dye is a polymethine dye, having a general formula (II):

##STR00002## wherein W represents 4-8 carbon atoms forming a benzo-condensed or a naphto-condensed ring; R.sub.3 and R.sub.4 are independently selected from the group consisting of CH.sub.2CH.sub.3, (CH.sub.2).sub.3SO.sup.3?, (CH.sub.2).sub.3N.sup.+(CH.sub.3).sub.3; R.sub.5 and R.sub.6 are independently selected from the group consisting of H, SO.sup.3?; Q is selected from the group consisting of

##STR00003## wherein D is selected from the group consisting of

##STR00004##

A polysiloxane-substituted quinacridone pigment is produced by a quinacridone pigment with an epoxy-terminated polysiloxane under conditions effective to cause the epoxy group on the polysiloxane to react with, and bond the polysiloxane to, the quinacridone pigment. The quinacridone pigment thus produced has the polysiloxane grouping bonded to one of the quinacridone nitrogen atoms via a hydrocarbon linking group, which bears a hydroxyl group on a carbon atom or to the quinacridone nitrogen atom. These quinacridone pigments are useful in electrophoretic displays.

A near infrared absorbing composition includes a near infrared absorber. The near infrared absorber contains at least one of Ingredient (A) and Ingredient (B). Ingredient (A) consists of a first compound having a first structure represented by General Formula (I), a second compound having a second structure represented by General Formula (II), and a copper ion. Ingredient (B) consists of a first copper complex in which the first compound is coordinated and a second copper complex in which the second compound is coordinated. In General Formula (I), R.sup.1 represents an alkyl group containing 1-20 carbons or an aryl group containing 6-20 carbons, and may further have a substituent. In General Formula (II), R.sup.2 represents an alkyl group containing 1-20 carbons or an aryl group containing 6-20 carbons, and may further have a substituent. ##STR00001##