Catalyst-free curable epoxy compositions
AssigneeSabic Global Technologies B.V.
InventorsMukesh AGRAWAL, NIKHIL K.E. VERGHESE
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Abstract
A curable epoxy composition, comprising: 100 parts by weight of an epoxy resin composition comprising one or more epoxy resins, each independently having an epoxy equivalent weight of at least 2; 30 to 200 parts by weight of an aromatic dianhydride curing agent of formula (1) wherein T is —O—, —S—, —C(O)—, —SO2—, —SO—, —CyH2y— wherein y is an integer from 1 to 5 or a halogenated derivative thereof, or —O—Z—O— wherein Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-8 alkyl groups, 1 to 8 halogen atoms, or a combination comprising at least one of the foregoing, wherein the composition does not contain a catalyst.
Claims23
A curable epoxy composition, comprising:
- 100 parts by weight of an epoxy resin composition comprises an epoxy resin that is a bisphenol A epoxy resin, a triglycidyl-substituted epoxy resin, a tetraglycidyl-substituted epoxy resin, a bisphenol F epoxy resin, a phenol novolak epoxy resin, a cresol novolak epoxy resin, a cycloaliphatic diglycidyl ester epoxy resin, a cycloaliphatic epoxy resin comprising a ring epoxy group, a hydantoin epoxy resin, or a combination thereof;
- 30 to 200 parts by weight of an aromatic dianhydride curing agent of formula (1)
- wherein T is —O—, —S—, —SO2—, or —O—Z—O— wherein Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-18 alkyl groups, 1 to 8 halogen atoms, or a combination thereof,
- wherein the composition does not contain a catalyst.
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Dependencies are inferred from the claim text.