| 摘要 |
PCT No. PCT/EP97/00494 Sec. 371 Date Apr. 22, 1999 Sec. 102(e) Date Apr. 22, 1999 PCT Filed Feb. 4, 1997 PCT Pub. No. WO97/30106 PCT Pub. Date Aug. 21, 1997By heating at above the melting point or glass transition point of the polyamide and adding a secondary aromatic amine and a difunctional epoxide it is possible to bring about an increase in the molecular weight and/or viscosity of virgin polyamide and recycled polyamide. |
