| 摘要 |
PCT No. PCT/JP95/01633 Sec. 371 Date Feb. 19, 1997 Sec. 102(e) Date Feb. 19, 1997 PCT Filed Aug. 17, 1995 PCT Pub. No. WO96/05925 PCT Pub. Date Feb. 29, 1996The binder composition for the production of molds of the present invention comprises a binder obtained by polycondensation of polycondensable components comprising as major components furfuryl alcohol, urea, and an aldehyde. In the binder contained in the binder composition for the production of molds, the difference [A-B] between the weight % of charged furfuryl alcohol (A) based on the weight of the binder and the weight % of unreacted furfuryl alcohol (B) based on the weight of the binder is 5.0 to 60.0. When the binder composition for the production of molds of the present invention is used, the curing of the binder is further accelerated without deteriorating the working atmosphere.
|
