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

Claim 3:
4. A heat insulation material for a blanket, comprising:
a first substrate layer;
a second substrate layer stacked on the first substrate layer and comprising aerogel granules, wherein the second substrate layer comprises at least in part a polymer binder; and
an adhesive film layer formed on one or both sides of the second substrate layer,
wherein 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 heat insulation material for a blanket has a composite layer structure in which two or more assemblies of the second substrate layer and the adhesive film layer are stacked,
the heat insulation material for a blanket has a thickness (T) of 2 mm (T) to 10 mm (T), and
the ratio of the first substrate layer:the aerogel granules:the polymer binder and the adhesive film layer is (3 to 25) %:(50 to 90) %:(5 to 30) % by weight (wt %),
wherein the second substrate layer is stacked in two or more 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.