摘要:
An optical fibre comprising: an optical waveguide comprising a core surrounded by a cladding; a primary coating surrounding the optical waveguide; and a coating, surrounding the primary coating, comprising a polymer material obtained by radiation curing a polymerizable composition, the polymer material having a degree of crystallinity of at most 12. The coating of the optical fiber according to the present invention exhibits enhanced resistance upon exposure to high temperature, preferably a temperature over 250°C, while endowed with required features such as protective capability, elasticity, adhesion to underlying layer and simple manufacturing.
摘要:
The present invention is a composition comprising: a) one or more isocyanate functional prepolymers; b) one or more compounds containing a cycloaliphatic tertiary amine; c) one or more compounds containing a peroxide group; and d) one or more acrylate containing components. The system can be used in the form of a two part adhesive or in the form of a one part adhesive and an activator adapted to be applied to the surface of one or more of the substrates to which the adhesive is to be bonded.
摘要:
Provided are gel particles each having a three-dimensional crosslinked structure including at least one bond selected from a urethane bond and a urea bond, the gel particles each including: a polymerizable group; and a functional group that generates radicals by irradiation with active energy rays, a photosensitive composition containing the gel particles, an ink composition, a method of producing water dispersion of gel particles, and an image forming method.
摘要:
Provided are: a resin composition with which it is possible to form a cured film having excellent weather resistance and wear resistance; and a resin molding having said cured film. An active energy beam-curable resin composition containing a radical polymerizable compound and a photopolymerization initiator (d), wherein said radical polymerizable compound contains 57-90 mass% of (a) caprolactone-modified mono- or poly-penta erythritol poly (meth)acrylate represented by formula (1) and 10-43 mass% of (b) urethane (meth)acrylate synthesized from a polycarbonate polyol having a branched alkyl structure and an average molecular weight falling within the range of 500-1000, a diisocyanate having an alicyclic structure, and a mono (meth)acrylate containing a hydroxyl group. In formula (1), each X independently represents a caprolactone-modified (meth)acryloyl group, a (meth)acryloyloxy group, or a -OH group.
摘要:
The present invention provides an active energy ray-curable resin composition containing: (A) a monofunctional ethylenically unsaturated monomer free of urethane groups; (B) a polyfunctional ethylenically unsaturated monomer free of urethane groups; (C) a urethane group-containing ethylenically unsaturated monomer; (D) a photopolymerization initiator; (E) a polymerization inhibitor; and (F) a surfactant, wherein relative to the total weight of (A), (B), (C), (D), (E), and (F) , the weight ratio of (A) is 45 to 90% by weight, the weight ratio of (B) is 3 to 25% by weight, the weight ratio of (C) is 3 to 35% by weight, the weight ratio of (D) is 0.1 to 10% by weight, the weight ratio of (E) is 0.01 to 5% by weight, and the weight ratio of (F) is 0.1 to 10% by weight, and the resin composition has a surface tension of 20 to 30 mN/m.
摘要:
A water dispersion of gel particles, in which the gel particles having a polymerizable group, having a three-dimensional crosslinked structure including at least one bond selected from a urethane bond and a urea bond, and including at least a photopolymerization initiator and a resin are dispersed in water, a method of producing the water dispersion, and an image forming method using the water dispersion.