Liquid curable resin composition
OwnerHideaki Takase, Zen Komiya +1inventors
InventorsHideaki Takase, Zen Komiya, Takashi Ukachi
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Abstract
A curable resin composition comprising a urethane (meth)acrylate having a molecular terminal represented by the following formula (3), 1 wherein R1 is a hydrogen atom or a methyl group and R2 is a hydrogen atom or an organic group having one or more carbon atoms, the urethane (meth)acrylate being prepared by reacting (A) a polyol having a melting point of 0° C. or higher, (B) a polyisocyanate, and (C) a (meth)acrylate containing a hydroxyl group. The composition having excellent liquid stability and can produce cured products with superior mechanical characteristics by polymerization.
Claims12
A radiation curable optical fiber coating composition, comprising;
- a urethane compound having at least one (meth )acrylate group derived from a (meth)acrylate ester of an hydroxyalkylgroup, which hydroxyalkyl group comprises at least 4 carbon atoms and has a molecular weight of at least 85, and in which the urethane compound is based on a poly-ol having a melting point of 0° C. or higher.
Dependencies are inferred from the claim text.