WO2007010731-A1  See also references of EP 1905791A1EP1905791-A1  PAUL D. BLOOM ET AL.: "Novel Poly(p-phenylene)s via Nucleophilic Aromatic Substitution of Poly(4'-fluoro-2,5-benzophenone)" MACROMOLECULES, vol. 38, 25 February 2005 (2005-02-25), pages 2159-2166, XP002540027;  PAUL D. BLOOM ET AL.: "Nucleophilic aromatic substitution of poly(4'-fluoro-2,5-benzophenone)" POLYMERIC MATERIALS SCIENCE AND ENGINEERING, vol. 84, 2003, pages 562-563, XP009121076;  See also references of WO 2007010731A1EP2206547-A1  PAUL D. BLOOM ET AL.: "Novel Poly(p-phenylene)s via Nucleophilic Aromatic Substitution of Poly(4'-fluoro-2,5-benzophenone)" MACROMOLECULES, vol. 38, 25 February 2005 (2005-02-25), pages 2159-2166, XP002540027;  PAUL D. BLOOM ET AL.: "Nucleophilic aromatic substitution of poly(4'-fluoro-2,5-benzophenone)" POLYMERIC MATERIALS SCIENCE AND ENGINEERING, vol. 84, 2003, pages 562-563, XP009121076;  DATABASE WPI Section Ch, Week 200503 Thomson Scientific, London, GB; Class A85, AN 2005-024084 XP002584526 -&JP 2004 346163 A (JSR CORP) 9 December 2004 (2004-12-09);  No relevant documents disclosedUS7906608-B2  Paul D. Bloom, et al., "Novel Poly(p-phenylene)s via Nucleophilic Aromatic Substitution of Poly(4' -fluoro-2,5-benzophenone)", Macromolecules, vol. 38, No. 6, American Chemical Society, XP-002540027, Feb. 2005, pp. 2159-2166.;  Paul D. Bloom, et al., Nucleophilic aromatic substitution of Poly (4' -fluoro-2,5-benzophenone), Polymeric Materials: Science&Engineering, vol. 84, XP009121076, 2001, pp. 562-563.;  Database WPI Section Ch, Week 200503 Thomson Scientific, London, GB; Class A85, AN 2005-024084, XP002584526 (Corresponds to JP 2004-346163 A filed on Jun. 3, 2008).;  Chinese Office Action issued Sep. 30, 2010.EP2206547-B1  PAUL D. BLOOM ET AL.: "Novel Poly(p-phenylene)s via Nucleophilic Aromatic Substitution of Poly(4'-fluoro-2,5-benzophenone)" MACROMOLECULES, vol. 38, 25 February 2005 (2005-02-25), pages 2159-2166, XP002540027;  PAUL D. BLOOM ET AL.: "Nucleophilic aromatic substitution of poly(4'-fluoro-2,5-benzophenone)" POLYMERIC MATERIALS SCIENCE AND ENGINEERING, vol. 84, 2003, pages 562-563, XP009121076;  DATABASE WPI Section Ch, Week 200503 Thomson Scientific, London, GB; Class A85, AN 2005-024084 XP002584526 -& JP 2004 346163 A (JSR CORP) 9 December 2004 (2004-12-09)