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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8895675 B1

PDFFull Text
Date of Patent:
Nov. 25, 2014

Filed:

Dec. 25, 2006

Block copolymer

Applicants:

Daisuke Fukushima, Tsukuba, JP;

Hideyuki Higashimura, Tsukuba, JP;

Akihiko Okada, Tsukuba, JP;

Kazuei Ohuchi, Tsukuba, JP;

Makoto Anryu, Tsukuba, JP;

Inventors:

Daisuke Fukushima, Tsukuba, JP;

Hideyuki Higashimura, Tsukuba, JP;

Akihiko Okada, Tsukuba, JP;

Kazuei Ohuchi, Tsukuba, JP;

Makoto Anryu, Tsukuba, JP;

Assignee:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Duc Truong

Int. Cl.
CPC ...
C08G 79/02 (2006.01); C08G 79/08 (2006.01); C08L 53/00 (2006.01); C08G 61/00 (2006.01); C08G 61/10 (2006.01); C08G 61/12 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H05B 33/14 (2006.01); C08L 85/02 (2006.01); C08L 85/04 (2006.01); C08F 283/00 (2006.01);
U.S. Cl.
CPC ...
C08L 53/00 (2013.01); C08G 61/00 (2013.01); C08G 61/10 (2013.01); C08G 61/12 (2013.01); C08G 61/124 (2013.01); C08G 61/125 (2013.01); C08G 61/126 (2013.01); C09K 11/06 (2013.01); H01L 51/0035 (2013.01); H01L 51/0036 (2013.01); H01L 51/0039 (2013.01); H01L 51/0043 (2013.01); H05B 33/14 (2013.01); C09K 2211/14 (2013.01); H01L 51/0026 (2013.01); H01L 51/0037 (2013.01); H01L 2251/308 (2013.01);
Abstract

A block copolymer comprising two or more of blocks of the following formula (1), wherein at least two of a plurality of m's present in the copolymer represent a number of 5 or more, Ar's in adjacent two blocks in the copolymer are mutually different, and the copolymer has two Ar's when composed of 2 blocks of the formula (1), has two or more Ar's when composed of 3 blocks of the formula (1) and has four or more Ar's when composed of 4 or more blocks of the formula (1): (in the formula (1), Ar represents a conjugative divalent group and represents the same divalent group in an identical block, and m represents a number of 1 or more showing the number average polymerization degree of Ar present in one block).

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