公开(公告)号：US20110190408A1

公开(公告)日：2011-08-04

申请号：US12675088

申请日：2008-08-26

申请人： Francois M. Casati ,  Jean-Marie Sonney ,  Herve Wuilay

发明人： Francois M. Casati ,  Jean-Marie Sonney ,  Herve Wuilay

IPC分类号： C08J9/04 ,  C08G18/66

CPC分类号： C08G18/227 ,  C08G18/283 ,  C08G18/36 ,  C08G18/409 ,  C08G18/4804 ,  C08G18/4841 ,  C08G18/4891 ,  C08G18/5021 ,  C08G18/7621 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08L83/00

摘要： A process for producing a polyurethane product comprises steps of (a) supplying at least one polyisocyanate (b) supplying at least one polyol composition comprising at least about 5 weight percent based on total weight of polyols of at least one natural oil based polyol (b1) having a hydroxyl number of at most about 300 and a viscosity below about 10000 mPa·os; and (c) exposing the polyisocyanate and the polyol composition to reaction conditions such that urethane bonds are formed, wherein reaction conditions include the presence of at least one bismuth catalyst. Use of bismuth catalysts is particularly applicable to preparation of open celled, flexible polyurethane foams using polyols made from renewable resources, optionally with other polyols. The invention includes foams made by the process, including viscoelastic foams, preferably having a velvet feel.

摘要翻译： 一种制备聚氨酯产品的方法包括以下步骤：（a）提供至少一种多异氰酸酯（b），其供应至少一种多元醇组合物，所述多元醇组合物包含至少一种天然油基多元醇（b1）的多元醇的总重量的至少约5重量％ ），羟值至多约300，粘度低于约10000mPa·os; 和（c）将多异氰酸酯和多元醇组合物暴露于形成氨基甲酸酯键的反应条件，其中反应条件包括至少一种铋催化剂的存在。 使用铋催化剂特别适用于使用由可再生资源制备的多元醇，任选与其它多元醇制备开孔，柔性聚氨酯泡沫体。 本发明包括通过该方法制造的泡沫，包括粘弹性泡沫，优选具有天鹅绒感。