Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

Disclosed herein are self-healing conductive network compositions. The networks can contain one or more conductive polymers and one or more supramolecular complexes. The supramolecular complex can be introduced into conductive polymer matrix, resulting in a network of the two components. In this network, the nanostructured conductive polymer gel constructs a 3D network to promote the transport of electrons and mechanically reinforce the network while the supramolecular complex contributes to self-healing property and also conductivity. The networks disclosed herein are useful for various applications such as self-healing electronics, artificial skins, soft robotics and biomimetic prostheses.

The present invention provides: a copolymer (A) which is a copolymer obtained by copolymerizing one or plural cycloolefin monomers and one or plural acyclic olefin monomers, or by copolymerizing two or more cycloolefin monomers, wherein a glass transition temperature (Tg) is 100 C. or higher, a refractive index is 1.545 or higher, and an Abbe's number is 50 or larger; a polymer (B) selected from: a ring-opening homopolymer obtained by ring-opening polymerization of only a monomer represented by formula (I), a ring-opening copolymer obtained by ring-opening copolymerization of the monomer represented by formula (I) and a monomer capable of ring-opening copolymerization with the monomer represented by formula (I), a hydrogenated product of the ring-opening homopolymer and a hydrogenated product of the ring-opening copolymer; a forming material containing the copolymer (A) or the polymer (B); and a resin formed article obtained by forming the forming material. ##STR00001##

A crosslinkable composition containing: a liquid monocyclic olefin ring-opened polymer (A) having a reactive group at a polymer chain end thereof and a weight-average molecular weight (Mw) of 1,000 to 50,000; and a crosslinkable compound (B) having, in the molecule, two or more functional groups reactive with the reactive group at the polymer chain end of the monocyclic olefin ring-opened polymer (A).

A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-cis-cyclooctene, and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.

A rubber composition that contains 0.1 to 50 parts by weight of an organic peroxide with respect to 100 parts by weight of a cyclopentene ring-opening polymer.

Provided is a mechanochromic resin by which a stress applied to a material can be visualized in real time, and a mechanochromic luminescent material that is used in the synthesis of the mechanochromic resin. Stress can be visualized in real time by means of a mechanochromic luminescent material represented by formula (1) or formula (2) and a mechanochromic resin obtained by crosslinking the mechanochromic luminescent material. [Chemical formula 1] (In the formula, Y.sub.1 and Y.sub.2 each denote a substituent group that inhibits aggregation of the mechanochromic luminescent material represented by formula (1), and Y.sub.1 and Y.sub.2 may be same as or different from each other. Z.sub.1 and Z.sub.2 each denote a polymerizable group, and may be same as or different from each other.) [Chemical formula 2] (In the formula, Y.sub.1 and Y.sub.2 each denote a substituent group that inhibits aggregation of the mechanochromic luminescent material represented by formula (2), and Y.sub.1 and Y.sub.2 may be same as or different from each other. Z.sub.1 and Z.sub.2 each denote a polymerizable group, and may be same as or different from each other). ##STR00001##

Disclosed herein is a composite prepared by dispersing silver flakes in a polyvinyl alcohol (PVA), phosphoric acid (H.sub.3PO.sub.4), and poly(3,4-ethyl-ene-dioxythiophene) (PEDOT):poly(styrene sulfonic acid) (PSS) polymer mixture. The polymer blend can provides conductive pathways between the silver flakes, leading to superior electrical properties even at large deformations.

Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

A camera cover is provided. The camera cover has a coating formed on a surface of the camera cover. The coating contains a urethane acrylate resin. The camera cover has a dome shape and is designed to protect an image capturing unit. A Berkovich hardness at an indenter penetration depth of 100 to 300 nm on a surface of the coating is at least 0.4 GPa.