A polymerization curable composition comprising a specific polyfunctional polymerizable monomer having a hard molecular structure with an L-scale Rockwell hardness of its homopolymer of 60 or more, a specific polyfunctional polymerizable monomer and a photochromic compound, a photochromic lens substrate composed of a cured product of the polymerization curable composition, and a lens comprising the photochromic lens substrate. The substrate and lens show excellent photochromic properties such as high color development density and high fading rate, and the cured product has excellent substrate properties such as hardness, heat resistance and impact resistance as well as strength (toughness) that allows for its use in rimless spectacles.

The invention relates to a method for preparing a polymer conjugate, in which a water-soluble polymer employed, the polymer having a linear or branched water-soluble polymer backbone and, at one end of the backbone, a branched moiety linked with two free reactive groups capable of covalent bonding to another molecule. Most specificly, it relates to an activated, substantially water soluble poly(ethylene glycol) having a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and has proximal reactive groups is reacted with active moieties in a biologically active agent such as a protein or peptide thus forming conjugates between the activated poly(ethylene glycol) and the biologically active agent.

The invention relates to an adhesive composition which is suitable for use on a shaped part of polyester, in particular a polyester film, and comprises a copolyester, optionally in combination with light-sensitive substances, fillers and pigments, whereby the copolyester additionally contains at least one copolymer of vinylidene chloride, preferably in a weight ratio of about 3:1 to 1:1. The adhesive composition can furthermore contain cellulose acyl esters, such as low molecular-weight cellulose acetobutyrate or cellulose propionate. Polybasic oxycarboxylic acids and levelling agents can also be present. The adhesive composition can be employed in mixtures with, for example, light-sensitive lacquer systems.

A method of providing a surface of a material with an image, includes applying to the surface an image sheet included (i) a flexible layer of a Shape Memory Polymer, and (ii) an image bonded to said layer by means of an image key coat. The image sheet is bonded to the surface by means of an adhesive and a process which involves heating of the Shape Memory Polymer to a temperature above its Glass Transition Temperature.

The invention relates to a motion element for producing motion in small quantities of liquid comprising a plate-shaped member having two principal surfaces, wherein at least one motion device, which is electrically controllable, is arranged on a first active principal surface to set in motion a liquid which is in contact with the active principal surface, and electrical contact elements for the motion device. The invention furthermore relates to a motion device which can be used with the motion element according to the invention, a cartridge to receive a motion element according to the invention, a reaction device to receive a cartridge according to the invention and a method for producing motion in small quantities of liquid.

Disclosed is a silver halide photographic light-sensitive material having a support containing a filler and/or an undercoat layer containing a clay compound coated with an organic substance between the support and an emulsion layer or between the support and a back layer. The silver halide photographic light-sensitive material shows good dimensional stability in a processing system.

The invention relates to optical fibers incorporating cavities in their structure. This is an optical fiber comprising: a central core (1); a first annular region (ra) surrounding the central core (1); a second annular region (rb) surrounding the first annular region (ra) and comprising medium-size cavities (3) the cross section whereof remains strictly between a given first threshold and a given second threshold strictly higher than the first threshold; a third annular region (rc) surrounding the second annular region (rb) and comprising large cavities (4) the cross section whereof remains strictly above the second threshold; in a cross section of the optical fiber, any radius that goes from the center of the core towards the exterior of the optical fiber encounters at least either a medium-size cavity (3) in the second annular region (rb) or a large cavity (4) in the third annular region (rc); and the average distance between the outer perimeter (Ca) of the second annular region (rb) and the inner perimeter (Cb) of the third annular region (rc) is less than half the average dimension of a large cavity (4).

The invention relates to a composition for producing a heat-insulating coating comprising at least one radiation-absorbing compound and at least one IR-reflector component, to a heat-insulating coating comprising this oriented, cured composition, and to a process for producing said coating.

It is to provide an imaging lens that can sufficiently handle the demands for reduction in size and weight and further improvement in the optical performance, e.g. for mobile phones or the like. The imaging lens comprises, in order from the object towards the image (7), a diaphragm (2), a first lens (3) which is a meniscus lens having positive power, the convex surface of which faces the object side, and a second lens (4) which is a lens having positive power, the convex surface of which faces the image (7), wherein conditions expressed by each of following inequalities (1)-(6) are to be satisfied; n1.25‰¥L/fl‰¥0.8, 0.55‰¥f 1 /f 2 >0, 1.5‰¥f 1 /fl‰¥0.9, 1‰¥d 2 /d 1 ‰¥0.2, 0.35‰¥d 1 /fl‰¥0.1, and 0.27‰¥d 3 /fl‰¥0.1 (where, L: entire length of the lens, fl: focal distance of the entire imaging lens, f 1 : focal distance of the first lens, f 2 : focal distance of the second lens, d 1 : center thickness of the first lens, d 2 : space between the first lens and the second lens on the optical axis, and d 3 : center thickness of the second lens).

The present invention provides a method for manufacturing 3-alkoxy-2-halogenocyclobutanone derivatives represented by the following general formula (IV) through the following reaction, using a vinyl ether represented by the following general formula (V) and a halogenoacetyl halide represented by the following general formula (VI) as starting materials, nwherein R 1 represents an alkyl group and R 2 , R 3 , and R 4 are the same or different and each represents a halogen atom.