申请人:Daihachi Chemical Industry Co., Ltd.
公开号:EP1561793A1
公开(公告)日:2005-08-10
A vapor pressure reducing agent for polyurethane foam, comprising at least one compound represented by the following formula (1):
wherein R1, R2 and R3 represent a straight-chain alkyl group or branched-chain alkyl group having 2 to 5 carbon atoms, R1, R2 and R3 may be the same or different, with the proviso that the compound wherein R1, R2 and R3 are all ethyl groups is excluded, the compound having a total acid content of 650 mg KOH or less as measured in accordance with MIL H-19457; and a premix composition for producing polyurethane foam, comprising a polyol, a curing catalyst, 1,1,1,3,3-pentafluoropropane, a foaming stabilizer, and the vapor pressure reducing agent described above.
一种用于聚氨酯泡沫塑料的蒸汽减压器,由至少一种下式(1)代表的化合物组成:
其中 R1、R2 和 R3 代表具有 2 至 5 个碳原子的直链烷基或支链烷基,R1、R2 和 R3 可以相同或不同,但不包括 R1、R2 和 R3 全为乙基的化合物,根据 MIL H-19457 测量,该化合物的总酸含量为 650 毫克 KOH 或更少;一种用于生产聚氨酯泡沫塑料的预混组合物,包括多元醇、固化催化剂、1,1,1,3,3-五氟丙烷、发泡稳定剂和上述蒸汽减压器。