Patent ID: 11897246
Assignee: nan
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A heat insulation material comprising:
at least two first substrate layers; and
at least two second substrate layers stacked on at least one of the first substrate layers and comprising aerogel granules,
wherein the second substrate layers comprise at least in part a polymer binder,
the aerogel granules have a particle size of 0.5 to 3 mm,
the polymer binder adheres to the aerogel granules by static electricity,
the second substrate layers are sandwiched between two of the first substrate layers,
the heat insulation material further comprises at least one adhesive film layer on one or both sides of at least one of the second substrate layers, and
the ratio of the first substrate layers:the aerogel granules:the polymer binder and the at least one adhesive film layer is (3 to 25) %:(50 to 90) %:(5 to 30) % by weight (wt %),
wherein the at least one adhesive film layer is not adhered to the first substrate layers,
wherein the bulk density of the aerogel granules is 50% or more of the total volume of the heat insulation material, and 90% or more of the total volume of the second substrate layers, and
wherein the aerogel granules in the second substrate layers have a uniform particle size.