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US 12,234,387 B2Granted
Sealant sheet
AssigneeNitto Denko Corporation
InventorKosuke Morita
Life of this patent
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Abstract
Provided is a sealant sheet formed in a sheet shape. The sealant sheet comprises an epoxy group-containing polysulfide polymer (AB) having two or more epoxy groups per molecule, and a thiol compound (C) having two or more thiol groups per molecule. In the sealant sheet, sulfur atoms in organic components of the sealant sheet has a weight fraction of 32.0% or higher and 36.0% or lower.
Claims5
A sealant sheet formed in a sheet shape, the sealant sheet comprising the following components:
- an epoxy group-containing polysulfide polymer (AB) having two or more epoxy groups per molecule, and
- a thiol compound (C) having two or more thiol groups per molecule;
- wherein the epoxy group-containing polysulfide polymer (AB) is a reaction product of a thiol group-containing polysulfide (a) having a disulfide structure and a thiol group in one molecule and an epoxy compound (b) having two or more epoxy groups in one molecule;
- wherein the epoxy compound (b) comprises a bifunctional epoxy compound having two epoxy groups in one molecule, and a polyfunctional epoxy compound having three or more epoxy groups in one molecule;
- and
- wherein sulfur atoms in organic components of the sealant sheet has a weight fraction of 32.0% or higher and 36.0% or lower.
3 more elements
Dependencies are inferred from the claim text.