公开(公告)号：US20230092698A1

公开(公告)日：2023-03-23

申请号：US17789476

申请日：2019-12-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lianzhou Chen ,  Enzhong Zhang ,  Shaomin Sun ,  Zhonghai Cai ,  Shaoqing Gu

IPC: C08L83/04 ,  C09K3/10 ,  B32B7/12 ,  H01M50/231 ,  H01M50/227 ,  H01M50/222 ,  H01M50/229 ,  H01M50/202

Abstract: The two-part composition includes a first part and a second part. The first part includes a vinyl-substituted polysiloxane, a hydrosilylation catalyst, expandable graphite comprising moisture, and first polymeric microspheres having been at least partially coated with inorganic filler. The second part includes a second vinyl-substituted polysiloxane, a hydrosilyl-substituted polysiloxane, and second polymeric microspheres having been at least partially coated with flame-retardant inorganic filler. The two-part composition is useful, for example, for curing into a sealant and making an assembly. The assembly has a first substrate and a second substrate with a cured product of the two-part composition in contact with the first substrate and the second substrate. Methods of making a sealant and an assembly are also described.