Branched polyphenylene polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C525S133000, C525S144000, C525S146000, C525S147000, C525S191000, C525S192000, C525S197000, C525S203000, C525S219000, C525S235000, C525S334100, C528S086000, C528S098000, C528S099000, C528S169000, C528S174000, C528S218000, C528S219000

Reexamination Certificate

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11073043

ABSTRACT:
Branched polyarylene polymers are provided comprising monovalent endcappers, divalent linear units, and polyvalent branching units. The composition of the polymers is controlled by adjusting the ratio of the three types of monomers.

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patent: 5625010 (1997-04-01), Gagne et al.
patent: 5670564 (1997-09-01), Gagne et al.
patent: 5886130 (1999-03-01), Trimmer et al.
Kovacic et al., “Dehydro Coupling of Armoatic Nuclei by Catalyst-Oxidant Systems: Poly (p-phenylene)” Chem. Rev. 1987, vol. 87, No. 2, pp. 357-379.
Kim et al., “Hyperbranched Polyphenylenes”, Macromolecules, vol. 25, No. 21, Oct. 12, 1992, pp. 5561-5572.

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