公开(公告)号：EP0394487B2

公开(公告)日：2005-02-16

申请号：EP89911605.7

申请日：1989-10-18

申请人： Asahi Glass Co., Ltd.

发明人： TAKEYASU, Hiromitsu ,  SONOBE, Tsunehisa ,  YAMAGUCHI, Yoshiyuki ,  DOI, Takao

IPC分类号： C08G18/48

CPC分类号： C08G18/632 ,  C08G18/4837 ,  C08G18/4866 ,  C08G18/672 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08G18/48

摘要： The invention relates to an elastic polyurethane foam having a resonance frequency of up to 3.5 Hz and a process for producing same. This foam is obtained by using as main reactant materials at least one polyol selected from among specific polyoxyalkylene polyols and polymer dispersion polyols based on said polyoxyalkylene polyols as the matrix and a polyisocyanate compound. This foam is produced by using a polyoxyalkylene polyol having a particularly low hydroxyl value (X mg KOH/g) and a particularly low total unsaturation (Y meq/g) or a polymer dispersion polyol based on said polyoxyalkylene polyol as the matrix. More specifically the polyoxyalkylene polyol has a hydroxyl value (X mg KOH/g) of 5 to 38 and a total unsaturation (Y meq/g) of up to 0.07, with the proviso that Y « 0.9/(X-10). A preferred polyoxyalkylene polyol is one containing 70 wt.% or more oxypropylene groups and 5 wt.% or more oxyethylene groups. The use of a small amount of a crosslinking agent together with the polyoxyalkylene polyol is preferred. This foam has vibration properties suited for seat cushions of automobiles. Therefore, it can give a comfortable ride.

公开(公告)号：EP0394487A1

公开(公告)日：1990-10-31

申请号：EP89911605.7

申请日：1989-10-18

申请人： Asahi Glass Co., Ltd.

发明人： TAKEYASU, Hiromitsu ,  SONOBE, Tsunehisa ,  YAMAGUCHI, Yoshiyuki ,  DOI, Takao

IPC分类号： C08G18/48

CPC分类号： C08G18/632 ,  C08G18/4837 ,  C08G18/4866 ,  C08G18/672 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08G18/48

摘要： The invention relates to an elastic polyurethane foam having a resonance frequency of up to 3.5 Hz and a process for producing same. This foam is l obtained by using as main reactant materials at least one polyol selected from among specific polyoxyalkylene polyols and polymer dispersion polyols based on said polyoxyalkylene polyols as the matrix land a polyisocyanate compound. This foam is produced by using a polyoxyalkylene polyol having a particularly low hydroxyl value (X mg KOH/g) and a particularly low total unsaturation (Y meq/g) or a polymer dispersion polyol based on said polyoxyalkylene polyol as the matrix. More specifically the polyoxyalkylene polyol has a hydroxyl value (X mg KOH/g) of 5 to 38 and a total unsaturation (Y meq / g) of up to 0.07, with the proviso that Y ≤ 0.9/(X-10). A preferred polyoxyalkylene polyol is one containing 70 wt.% or more oxypropylene groups and 5 wt.% or more oxyethylene groups. The use of a small amount of a crosslinking agent together with the polyoxyalkylene polyol is preferred. This foam has vibration properties suited for seat cushions of automobiles. Therefore, it can give a comfortable ride.

摘要翻译： 通过使用催化剂（和异氰酸酯组合物）发泡剂和泡沫控制剂使交联剂存在下的多元醇（1）反应生成弹性聚氨酯泡沫。 多元醇（1）具有高分子量。 它们是聚氧化烯多元醇（2）或基于聚氧化烯多元醇基质的聚合物分散体多元醇。 （2）羟值为5-38和2-8羟基。 对于（2）条件Y 0.9（X-10），0.07满足。 其中X是羟值（mgKOH / g）; Y是总不饱和度（meq / g）优选X 0 5-28和Y 0.04。 （2）含有70重量％以上的氧化丙烯和任意数量的氧化乙烯基。 （2）含有5重量％以上的末端氧化乙烯基。 聚合物分散体多元醇含有1-40重量％的乙烯基聚合物细颗粒。 交联剂的用量为0.2-10。 重量。 基于100点。 重量。 的多元醇。 异氰酸酯是芳香族多元素中的至少一种：异氰酸硅烷酯，二苯基甲烷二异氰酸酯，粗二苯基甲烷二异氰酸酯，变性产物。 这些。 发泡剂是水或水，低沸点。 卤代烃。