公开(公告)号：US4931482A

公开(公告)日：1990-06-05

申请号：US355530

申请日：1989-05-22

Applicant: Wilhelm Lamberts ,  Klaus-Dieter Sommerfeld ,  Dietmar Bielefeldt ,  Albrecht Marhold ,  Michael Negele

Inventor： Wilhelm Lamberts ,  Klaus-Dieter Sommerfeld ,  Dietmar Bielefeldt ,  Albrecht Marhold ,  Michael Negele

IPC: C07C17/00 ,  C08G18/00 ,  C08J9/14

CPC classification number: C08J9/14 ,  C07C17/00 ,  C08J9/146 ,  C08J2375/04 ,  Y10S521/908

Abstract: This invention relates to an improved method of preparing closed cell foams using 1,1,1,4,4,4-hexafluorobutane as a blowing agent and insulating gas in the production of such foams, including isocyanate-based foams such as polyurethane foams and polyisocyanurate foams.

Abstract translation: 本发明涉及一种使用1,1,1,4,4,4-六氟丁烷作为发泡剂制备闭孔泡沫的改进方法，并且在生产这种泡沫体时产生绝缘气体，包括异氰酸酯基泡沫如聚氨酯泡沫和 聚异氰脲酸酯泡沫。