Patent ID: 11926529
Assignee: LG CHEM, LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  D  F | IPC B  C  D  F

Claim 0:
1. A method for producing an aerogel blanket, the method comprising:
1) introducing a precursor solution and a catalyst solution comprising a base catalyst and a polar organic solvent into an impregnation tank to produce a catalyzed sol and allowing a catalyzed sol to stay in the impregnation tank to increase in viscosity;
2) passing a base material for a blanket through the impregnation tank to allow the catalyzed sol to penetrate into the base material for a blanket; and
3) subjecting the base material for a blanket into which the catalyzed sol has been penetrated to gelation on a conveyor belt of a device used for gel casting,
wherein a retention time of the catalyzed sol in the impregnation tank is 0.5 minutes to 40 minutes; and
the viscosity of the catalyzed sol when introduced into the base material is 1.2 to 6.0 times the viscosity of the catalyzed sol immediately after being produced.