| 摘要 |
PCT No. PCT/EP93/02494 Sec. 371 Date May 3, 1995 Sec. 102(e) Date May 3, 1995 PCT Filed Sep. 15, 1993 PCT Pub. No. WO94/06886 PCT Pub. Date Mar. 31, 1994The invention relates to an intumescent one-component sealant based on polyurethane and containing an intumescent agent and a vitreous fusible filler. The intumescent agent and the vitreous filler have been pretreated by reaction with an isocyanate having a functionality of at least 2. The sealant is stable in storage and is an effective fire barrier in the event of fire. |
