公开(公告)号：US20160244585A1

公开(公告)日：2016-08-25

申请号：US15146277

申请日：2016-05-04

Applicant: BASF SE

Inventor： VOLKER SCHÄDLER ,  Marc FRICKE ,  Werner WIEGMANN ,  Andreas EMGE ,  Vijay Immanuel RAMAN ,  Antonio SANCHEZ-FERRER

IPC: C08J9/28 ,  E06B3/677 ,  E06B3/66

CPC classification number: C08J9/28 ,  C08G18/3243 ,  C08G18/7664 ,  C08G2101/0091 ,  C08G2330/50 ,  C08J2201/0502 ,  C08J2205/028 ,  C08J2375/02 ,  E06B3/6612 ,  E06B3/6775

Abstract: The invention relates to a xerogel comprising from 30 to 90% by weight of a monomer component (a1) composed of at least one polyfunctional isocyanate and from 10 to 70% by weight of a monomer component (a2) composed of at least one polyfunctional aromatic amine, at least one of which is selected from 4,4′-diaminodiphenylmethane, 2,4′-diaminodiphenylmethane, 2,2′-dIamino-diphenylmethane and oligomeric diaminodiphenylmethane, where the sum of the % by weight of monomer components (a1) and (a2) adds up to 100% by weight and where the monomer components are present in polymeric form in the xerogel and the volume-weighted mean pore diameter of the xerogel is at most 5 μm.The invention further relates to a process for preparing xerogels, to the xerogels thus obtainable and to the use of the xerogels as an insulating material and in vacuum insulation panels.

Abstract translation: 本发明涉及一种干凝胶，其包含30至90重量％的由至少一种多官能异氰酸酯组成的单体组分（a1）和10至70重量％的由至少一种多官能芳族化合物组成的单体组分（a2） 胺，其中至少一种选自4,4'-二氨基二苯基甲烷，2,4'-二氨基二苯基甲烷，2,2'-二氨基 - 二苯基甲烷和低聚二氨基二苯基甲烷，其中单体成分（a1）的重量％ 和（a2）加起来为100重量％，其中单体组分以干凝胶形式聚合形式存在，干凝胶的体积加权平均孔径至多为5μm。 本发明还涉及一种制备干凝胶的方法，所述干凝胶可由此获得，以及使用干凝胶作为绝缘材料和真空绝热面板。