Halogen and perhalo-organo substituted N-phenyl (or biphenyl) maleimide
AssigneeCorning Incorporated
InventorJianguo Wang
Life of this patent
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Abstract
A copolymer containing N-(halogenated phenyl) maleimide units or N-(halogenated phenyl) bismaleimide units and one or more second units selected from halogenated acrylates, halogenated styrenes, halogenated vinyl ether, halogenated olefins, halogenated vinyl isocyanates, halogenated N-vinyl amides, halogenated allyls, halogenated propenyl ethers, halogenated methacrylates, halogenated maleates, halogenated itaconates, and halogenated crotonates, is useful to form optical devices
Claims18
A copolymer comprising a first monomer unit selected from a N-(halogenated phenyl) maleimide unit or a N-(halogenated biphenyl) bismaleimide unit and one or more second monomer units selected from the group consisting of halogenated acrylates, halogenated styrenes, halogenated vinyl amides, halogenated allyls, halogenated propenyl ethers, halogenated methacrylates, halogenated maleates, halogenated itaconates, and halogenated crotonates;
- wherein said phenyl groups have substituents R1-R5 and at least one of R1-R5 is selected from the group consisting of CF3, a C2-C8 perfluoroalkyl group and a perfluoroaryl group;
- and the remainder of said R1-R5 is selected from the group consisting of F, CF3, a C2-C8 perfluoroalkyl group and a perfluoroaryl group;
- and
- wherein said N-(halogenated biphenyl) bismaleimide has the structure
- and each of said R groups therein is independently selected from the group consisting of F, CF3, a C2-C8 perfluoroalkyl group and a perfluoroaryl group.
Dependencies are inferred from the claim text.