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AssigneeAir Products and Chemicals, Inc.
InventorMichael I. Cook
Estimating the term…
An epoxy resin curing composition comprising the product of the reaction of (A) a polyamine containing primary amine functionality and (B) a polyepoxide having an EEW of from 130 to 450 in a ratio of moles of polyamine per equivalents of polyepoxide sufficient to provide intermediate (C) which comprises an adduct of about two moles of polyamine and one mole polyepoxide, intermediate (C) being then reacted with an amount of a polyepoxy resin (D) sufficient to react with about 10-40% of the primary amines in intermediate (C) to provide adduct (E), and adduct (E) being end capped with a monoepoxide composition comprising an aromatic glycidyl ether or an alkyl substituted aromatic glycidyl ether, or both. The composition may be salted with a volatile acid such as acetic acid and blended with water to afford an aqueous composition containing 20 to 65% nonvolatiles.
An epoxy resin curing composition comprising the product of the reaction of (A) a polyamine containing primary amine functionality and (B) a polyepoxide having an EEW of 130 to 450 in a ratio of moles of polyamine per equivalents of polyepoxide sufficient to provide an intermediate (C) comprising an adduct of about two moles of polyamine and one mole polyepoxide, intermediate (C) being then reacted with a polyepoxy resin (D) having an EEW of 450 to 2000 in an amount sufficient to react with about 10-40% of the primary amines in intermediate (C) to provide a polyamine-polyepoxide adduct (E), and adduct (E) being end capped with a monoepoxide composition comprising an aromatic glycidyl ether or an alkyl substituted aromatic glycidyl ether, or both.
An epoxy resin curing composition comprising the product of the reaction of (A) a polyamine containing primary amine functionality and (B) a polyepoxide having an EEW of 130 to 350 in a 1.5 to 10 ratio of moles of polyamine per equivalents of polyepoxide to provide an intermediate (C) comprising an adduct of about two moles of polyamine and one mole polyepoxide, excess polyamine being removed from intermediate (C) to<5 wt %, intermediate (C) being then reacted with a solid polyepoxy resin (D) having an EEW of 450 to 700 at about 0.1 to 0.4 moles of polyepoxide (D) per mole of intermediate (C) and sufficient to react with about 10-40% of the primary amines in intermediate (C) to provide a polyamine-polyepoxide adduct (E), and adduct (E) being end capped with a monoepoxide composition comprising a phenyl glycidyl ether or an alkyl phenyl glycidyl ether containing a C1 to C15 alkyl group, or both.
An epoxy resin curing composition comprising the product of the reaction of (A) a polyethylene polyamine containing primary amine functionality and (B) a polyepoxide having an EEW of 170 to 250 in a 2 to 4 ratio of moles of polyamine per equivalents of polyepoxide to provide an intermediate (C) comprising an adduct of about two moles of polyamine and one mole polyepoxide, excess polyamine being removed from intermediate (C) to<2 wt %, intermediate (C) being then reacted with a solid polyepoxy resin (D) having an EEW of 480 to 550 at about 0.2 to 0.4 moles of polyepoxide (D) per mole of intermediate (C) and sufficient to react with about 10-40% of the primary amines in intermediate (C) to provide a polyamine-polyepoxide adduct (E), and adduct (E) being end capped with a monoepoxide composition comprising a phenyl glycidyl ether or an alkyl phenyl glycidyl ether containing a C1 to C15 alkyl group, or both.
Dependencies are inferred from the claim text.