Blends of polyether sulfones and copolymides
AssigneeAmoco Corporation
InventorsM. Jamal El-Hibri, John L. Melquist
Life of this patent
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Abstract
Blends comprising a polyether sulfone and an imide-containing copolymer of sulfonyl bis(phthalic anhydride), 1,4-bis(p-aminocumyl) benzene and at least one of a selected group of diamine comonomers. The blends display a unique combination of excellent mechanical and thermal properties as well as good solubility and easy melt-fabricability; in addition, the resin components are compatible, and many compositions are unexpectedly miscible.
Claims14
A composition comprising a blend of polyether sulfone and an imide-containing copolymer of sulfonyl bis(phthalic anhydride), 1,4-bis(p-aminocumyl) benzene and at least one aromatic diamine selected from the group consisting of m-phenylene diamine, p-phenylene diamine, oxybisaniline, 2,2-bis(4-aminophenyl) propane, and 2,2-bis(4-aminophenoxyphenyl) propane, wherein said polyether sulfone does not contain a biphenyl unit.
A composition comprising a blend of polyether sulfone and an imide-containing copolymer of sulfonyl bis(phthalic anhydride), from about 10 to about 90 mole % 1,4-bis(p-aminocumyl) benzene and from about 90 to about 10 mole % aromatic diamine selected from m-phenylene diamine and p-phenylene diamine.
A composition comprising a blend of polyether sulfone and an imide-containing copolymer of sulfonyl bis(phthalic anhydride), from about 10 to about 90 mole % 1,4-bis(p-aminocumyl) benzene and from about 90 to about 10 mole % aromatic diamine selected from m-phenylene diamine and p-phenylene diamine, wherein said polyether sulfone polymer does not contain a biphenyl unit.
A composition comprising a blend of (a) a polymer of 4,4'-dichlorodiphenyl sulfone and at least one dihydric phenol selected from hydroquinone and 4,4'-dihydroxydiphenyl sulfone and (b) a copolyimide of sulfonyl bis(phthalic anhydride), from about 10 to about 90 mole % 1,4-bis(p-aminocumyl) benzene and from about 90 to about 10 mole % aromatic diamine selected from m-phenylene diamine and p-phenylene diamine.
A composition comprising a blend of (a) a polymer of 4,4'-dichlorodiphenyl sulfone and at least one dihydric phenol selected from hydroquinone and 4,4'-dihydroxydiphenyl sulfone and (b) a copolyimide of sulfonyl bis(phthalic anhydride), from about 10 to about 90 mole % 1,4'-bis(p-aminocumyl) benzene and from about 90 to about 10 mole % aromatic diamine selected from m-phenylene diamine and p-phenylene diamine, wherein the polymer of said component (a) does not contain a biphenyl unit.
Dependencies are inferred from the claim text.