公开(公告)号：US11970594B2

公开(公告)日：2024-04-30

申请号：US17753891

申请日：2020-09-17

Applicant: BASF SE

Inventor： Maximilian Lehenmeier ,  Hendrik Wagner ,  Rainer Klenz ,  Heike Hoelscher

IPC: C08J9/36

CPC classification number: C08J9/365 ,  C08J2205/052 ,  C08J2205/10 ,  C08J2375/04 ,  C08J2467/02

Abstract: Polybutylene terephthalate can be used as a gas diffusion barrier for closed-cell rigid polyurethane foams. A thermal insulation element containing a closed-cell, rigid polyurethane foam, which is at least partially covered by a layer system containing at least one layer formed by a polybutylene terephthalate composition, is useful. Articles and devices may contain a corresponding thermal insulation structure, such as refrigerators, insulation panels, pipe insulations, water heaters, and thermally insulated transport boxes.

公开(公告)号：US20230002582A1

公开(公告)日：2023-01-05

申请号：US17753891

申请日：2020-09-17

Applicant: BASF SE

Inventor： Maximilian Lehenmeier ,  Hendrik Wagner ,  Rainer Klenz ,  Heike Hoelscher

IPC: C08J9/36

Abstract: Polybutylene terephthalate can be used as a gas diffusion barrier for closed-cell rigid polyurethane foams. A thermal insulation element containing a closed-cell, rigid polyurethane foam, which is at least partially covered by a layer system containing at least one layer formed by a polybutylene terephthalate composition, is useful. Articles and devices may contain a corresponding thermal insulation structure, such as refrigerators, insulation panels, pipe insulations, water heaters, and thermally insulated transport boxes.