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US 12,655,335 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, a thiol compound (C) having two or more thiol groups per molecule, and a photobase generator (D); or a thiol group-containing polysulfide polymer (AC) having two or more thiol groups per molecule, an epoxy compound (B) having two or more epoxy groups per molecule, and a photobase generator (D).
Claims8
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,
- a thiol compound (C) having two or more thiol groups per molecule, and
- a photobase generator (D), and
- wherein the epoxy group-containing polysulfide polymer (AB) is a reaction product of a thiol group-containing polysulfide having a disulfide structure and a thiol group in one molecule and an epoxy compound, the epoxy compound comprising 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,
- wherein an epoxy/thiol ratio of the sealant sheet is 0.1 or greater and 1.0 or less, and
- wherein the sealant sheet has a sheet shape before being placed in an area to be sealed with the sealant sheet, and is a semi-cured sealant sheet capable of being further cured.
3 more elements
Dependencies are inferred from the claim text.