公开(公告)号：US20140010981A1

公开(公告)日：2014-01-09

申请号：US13923959

申请日：2013-06-21

Applicant: BASF SE

Inventor： Christof GRIESER-SCHMITZ ,  Gianpaolo Tomasi ,  Ludwig Windeler ,  Alex Popov ,  Carsten Ellersiek ,  Annika Halwe-Bommelmann

IPC: C08G18/72 ,  F16L59/02 ,  B29C44/18 ,  C08L75/08 ,  C08G18/08

CPC classification number: C08G18/72 ,  B29C44/08 ,  B29C44/1238 ,  B29C44/1242 ,  B29C44/18 ,  B29K2075/00 ,  B29K2105/046 ,  B29K2623/06 ,  B29K2705/00 ,  B29K2995/0015 ,  B29K2995/0063 ,  B29K2995/0078 ,  B29L2023/00 ,  C08G18/10 ,  C08G18/12 ,  C08G18/14 ,  C08G18/482 ,  C08G18/4825 ,  C08G18/485 ,  C08G18/4883 ,  C08G18/5021 ,  C08G18/797 ,  C08G2101/0025 ,  C08G2101/0033 ,  C08L75/08 ,  F16L59/028 ,  Y10T428/1376 ,  C08G18/48

Abstract: The present invention relates to a composition for producing a rigid polyurethane foam comprising at least one polyol having a molecular weight of not less than 1700 g/mol and at least one blowing agent as component A, and at least one polyisocyanate as component B, wherein the at least one polyisocyanate B comprises from 11 to 39.5 wt % of a polyisocyanate prepolymer, based on a polyether polyol having an OH number of at least 100 mg KOH/g, to a rigid polyurethane foam obtainable by reacting this composition, to a process for producing such a rigid polyurethane foam, to the use of such a rigid polyurethane foam for insulation, especially for pipe insulation and also to a process for producing an insulated pipe.

Abstract translation: 本发明涉及用于生产刚性聚氨酯泡沫的组合物，其包含至少一种分子量不小于1700g / mol的多元醇和至少一种作为组分A的发泡剂和至少一种作为组分B的多异氰酸酯，其中 所述至少一种多异氰酸酯B包含11至39.5重量％的基于具有至少100mg KOH / g OH值的聚醚多元醇的多异氰酸酯预聚物与通过使该组合物反应获得的硬质聚氨酯泡沫， 用于制造这样的硬质聚氨酯泡沫塑料，以使用这种硬质聚氨酯泡沫用于绝缘，特别是用于管道绝缘，以及用于生产绝缘管的方法。