| 摘要 |
PCT No. PCT/DE93/00136 Sec. 371 Date Aug. 10, 1994 Sec. 102(e) Date Aug. 10, 1994 PCT Filed Feb. 12, 1993 PCT Pub. No. WO93/16111 PCT Pub. Date Aug. 19, 1993Proposed is a mitogen-free substance comprising cross-linked copolymers including 10 to 90 mole % of guluronic acid, the balance being made up of mannuronic acid. The substance has a molecular weight of from 10,000 to 500,000 Daltons. Also proposed are methods for preparing such substances and their use. |
