Block copolymer and use thereof

Details Block copolymer and use thereof Block copolymer and use thereof

2006-07-25

2006-07-25

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S241000, C525S353000, C528S171000

Reexamination Certificate

active

07081497

ABSTRACT:
The present invention provides a block copolymer comprising at least one segment having an acid group and at least one segment substantially free from an acid group, wherein the segment having an acid group comprises a repeating unit which is a substituted repeating unit represented in the formula (1) with an acid group,in-line-formulae description="In-line Formulae" end="lead"?—(Ar1—X1—Ar2—X2)—,   (1)in-line-formulae description="In-line Formulae" end="tail"?and in the formula(1), X1and X2being each independently —O— or —S—, Ar1and Ar2being each independently an aromatic group selected from the groups represented by the following formulae (2) to (4)

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