Fibrous reinforcing molding and building material.

摘要

There are disclosed a fibrous reinforcing molding comprising a styrenic polymer with a high degree of syndiotactic configuration having a crystallinity of at least 30% and a birefringence index of at least 20 x 10<-><3> in absolute value and a building material comprising the aforesaid fibrous reinforcing molding. The above fibrous molding is excellent in physical properties such as tensile strength, modulus of elasticity and retention rate of such properties after hot alkali treatment and useful as the alternative reinforcing material for asbestos without causing pollution problem.