Patent ID: 10413701

Abstract:
A medical tube in which an intermediate layer composed of a composition containing (a), (b), and (c1) listed below and a lubricant layer composed of a composition containing (a), (b), and (c2) listed below are sequentially laminated on a surface of an insertion member to be inserted into a living body: (a) 1 to 35 weight % of at least one of aromatic diisocyanate, aliphatic diisocyanate, and alicyclic diisocyanate; (b) 1 to 35 weight % of trifunctional or higher functionality polyol; (c1) 30 to 98 weight % of polyalkylene glycol and/or monomethoxypolyalkylene glycol; and (c2) 30 to 98 weight % of polyalkylene glycol (including polyalkylene glycol larger in weight-average molecular weight than polyalkylene glycol in (c1)) and/or monomethoxypolyalkylene glycol (including monomethoxypolyalkylene glycol larger in weight-average molecular weight than monomethoxypolyalkylene glycol in (c1)),(where each of the glycols in (c1) and (c2) is diol).