| 摘要 |
PCT No. PCT/EP96/00788 Sec. 371 Date Nov. 6, 1996 Sec. 102(e) Date Nov. 6, 1996 PCT Filed Feb. 27, 1996 PCT Pub. No. WO96/27562 PCT Pub. Date Sep. 12, 1996To improve the reduction in tensile strength due to aging as well as the recovery, a weak acid is applied to a glass fiber mat containing a phenolic condensation resin binder before the binder is hardened. |
