Block copolymer and polymeric luminescent element

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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C525S241000, C525S133000, C525S137000, C526S346000, C526S103000

Reexamination Certificate

active

07125930

ABSTRACT:
A block copolymer comprising two or more blocks and having fluorescence in the solid state, wherein blocks thereof may be the same or different, and in each of the blocks, one or more kinds of repeating units are bonded through conjugated bonds, and bonding between the blocks is made by junction unit having conjugated bond, and the polystyrene reduced number average molecular weight of at least one block is 1×103to 1×108.

REFERENCES:
patent: 5589320 (1996-12-01), Ohnishi et al.
patent: 5856434 (1999-01-01), Stern
patent: 0 637 621 (1995-02-01), None
patent: 0 672 741 (1995-09-01), None
patent: 5-202355 (1993-08-01), None
patent: 2000-104057 (2000-04-01), None
patent: 2000-154334 (2000-06-01), None
patent: 2000-169839 (2000-06-01), None
patent: 2000-252065 (2000-09-01), None
patent: 92/03490 (1992-03-01), None

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